# Oroco Drills 234.6 metres of 0.52% CuEq at Santo Tomás Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d Original source: https://www.newsfilecorp.com/release/318054/Oroco-Drills-234.6-metres-of-0.52-CuEq-at-Santo-Toms Publisher: newsfile Original announcement: 2026-10-08T11:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-10-08T11:25:20.175Z Atlas analysis updated: 2026-10-08T11:25:20.175Z - Company: Oroco Resource Corp. - Ticker: OCO - Exchange: Unavailable - Region: Sinaloa, Mexico - Primary commodity: Copper - Secondary commodities: Molybdenum, Gold, Silver, Zinc, Lead - Document categories: Drill results - Extracted: 2026-10-08 11:25:20 UTC Narrative sentiment: 0.50 · Bullish ## Minestarters Atlas summary Oroco Resource Corp. reported new assay results from its Phase 2 drilling program at the Santo Tomás copper project in Mexico, including a significant intercept of 234.6 meters at 0.52% CuEq in hole S045. These results from ten drill holes, primarily infill and resource conversion, reinforce grade continuity and support the existing block model, providing data for an anticipated resource model update and pre-feasibility study. The company noted that true widths are yet to be confirmed and that metal equivalent calculations are not directly comparable to prior releases due to updated assumptions. Reasoning: New drill results from the Santo Tomás project confirm and extend copper mineralization, supporting the existing block model and providing data for future resource model updates and conversion of Inferred to Indicated resources, despite the lack of true width and comparability issues with CuEq calculations. A high-grade polymetallic intercept was also reported, though without a current processing plan. - Positive factor: Significant Intercepts - Positive factor: Infill Drilling - Positive factor: Resource Conversion Potential - Positive factor: QA/QC Disclosed - Positive factor: QP Signed - Positive factor: Compositing Transparent - Positive factor: Step-Out Extension - Positive factor: Bonanza Intercept - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Assays Pending - Negative factor: No Processing Plan for Polymetallic - Negative factor: Deleterious Elements Present Low confidence — this extraction should be reviewed alongside the original source. Facts used in scoring: 93 ## Classification and evidence No classification tags are available. ## Extracted facts Stored fact records: 93. Some facts used in scoring do not have a stored record. ## Drill Results (93) ### S045 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-0) Santo Tomás · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: S045 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.43 - Grade Unit: % - Intercept: 234.6 m - From: 174.1 m - To: 408.7 m - Intercept Depth: 174.1 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S045:174.1-408.7 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779023 - Northing: 2975149 - Elevation: 777.8 m - Azimuth: 100 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.52 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Broad intercept of copper mineralization supporting the block model and resource conversion. - Positive factor: Significant Intercepts - Positive factor: Infill Drilling - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.43 Context: 234.6 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S045 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-1) Santo Tomás · molybdenum #### Identity - Hole ID: S045 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.008 - Grade Unit: % - Intercept: 234.6 m - From: 174.1 m - To: 408.7 m - Intercept Depth: 174.1 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S045:174.1-408.7 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779023 - Northing: 2975149 - Elevation: 777.8 m - Azimuth: 100 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.008 Context: 234.6 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S045 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-2) Santo Tomás · gold #### Identity - Hole ID: S045 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.033 - Grade Unit: ppm - Intercept: 234.6 m - From: 174.1 m - To: 408.7 m - Intercept Depth: 174.1 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S045:174.1-408.7 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779023 - Northing: 2975149 - Elevation: 777.8 m - Azimuth: 100 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.033 Context: 234.6 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S045 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-3) Santo Tomás · silver #### Identity - Hole ID: S045 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 2.39 - Grade Unit: ppm - Intercept: 234.6 m - From: 174.1 m - To: 408.7 m - Intercept Depth: 174.1 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S045:174.1-408.7 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779023 - Northing: 2975149 - Elevation: 777.8 m - Azimuth: 100 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 2.39 Context: 234.6 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S045 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-4) Santo Tomás · copper #### Identity - Hole ID: S045 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.25 - Grade Unit: % - Intercept: 23.2 m - From: 411.3 m - To: 434.5 m - Intercept Depth: 411.3 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S045:411.3-434.5 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779023 - Northing: 2975149 - Elevation: 777.8 m - Azimuth: 100 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.28 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Copper mineralization supporting the block model and resource conversion. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.25 Context: 23.2 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S045 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-5) Santo Tomás · molybdenum #### Identity - Hole ID: S045 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.003 - Grade Unit: % - Intercept: 23.2 m - From: 411.3 m - To: 434.5 m - Intercept Depth: 411.3 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S045:411.3-434.5 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779023 - Northing: 2975149 - Elevation: 777.8 m - Azimuth: 100 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.003 Context: 23.2 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S045 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-6) Santo Tomás · gold #### Identity - Hole ID: S045 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.022 - Grade Unit: ppm - Intercept: 23.2 m - From: 411.3 m - To: 434.5 m - Intercept Depth: 411.3 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S045:411.3-434.5 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779023 - Northing: 2975149 - Elevation: 777.8 m - Azimuth: 100 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.022 Context: 23.2 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S045 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-7) Santo Tomás · silver #### Identity - Hole ID: S045 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 1.16 - Grade Unit: ppm - Intercept: 23.2 m - From: 411.3 m - To: 434.5 m - Intercept Depth: 411.3 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S045:411.3-434.5 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779023 - Northing: 2975149 - Elevation: 777.8 m - Azimuth: 100 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 1.16 Context: 23.2 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S046 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-8) Santo Tomás · copper #### Identity - Hole ID: S046 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.36 - Grade Unit: % - Intercept: 128 m - From: 0 m - To: 128 m - Intercept Depth: 0 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S046:0-128 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974703 - Elevation: 716.6 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.48 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Significant copper intercept from surface, supporting the block model. - Positive factor: Significant Intercepts - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.36 Context: 128 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S046 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-9) Santo Tomás · molybdenum #### Identity - Hole ID: S046 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.019 - Grade Unit: % - Intercept: 128 m - From: 0 m - To: 128 m - Intercept Depth: 0 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S046:0-128 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974703 - Elevation: 716.6 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.019 Context: 128 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S046 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-10) Santo Tomás · gold #### Identity - Hole ID: S046 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.016 - Grade Unit: ppm - Intercept: 128 m - From: 0 m - To: 128 m - Intercept Depth: 0 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S046:0-128 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974703 - Elevation: 716.6 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.016 Context: 128 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S046 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-11) Santo Tomás · silver #### Identity - Hole ID: S046 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 2.6 - Grade Unit: ppm - Intercept: 128 m - From: 0 m - To: 128 m - Intercept Depth: 0 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S046:0-128 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974703 - Elevation: 716.6 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 2.60 Context: 128 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S046 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-12) Santo Tomás · copper #### Identity - Hole ID: S046 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.31 - Grade Unit: % - Intercept: 26 m - From: 351 m - To: 377 m - Intercept Depth: 351 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S046:351-377 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974703 - Elevation: 716.6 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.43 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Copper intercept below the PEA pit, indicating potential for resource extension. - Positive factor: Significant Intercepts - Positive factor: Step-Out Extension - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.31 Context: 26 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S046 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-13) Santo Tomás · molybdenum #### Identity - Hole ID: S046 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.02 - Grade Unit: % - Intercept: 26 m - From: 351 m - To: 377 m - Intercept Depth: 351 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S046:351-377 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974703 - Elevation: 716.6 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.020 Context: 26 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S046 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-14) Santo Tomás · gold #### Identity - Hole ID: S046 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.015 - Grade Unit: ppm - Intercept: 26 m - From: 351 m - To: 377 m - Intercept Depth: 351 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S046:351-377 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974703 - Elevation: 716.6 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.015 Context: 26 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S046 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-15) Santo Tomás · silver #### Identity - Hole ID: S046 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 2.35 - Grade Unit: ppm - Intercept: 26 m - From: 351 m - To: 377 m - Intercept Depth: 351 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S046:351-377 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974703 - Elevation: 716.6 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 2.35 Context: 26 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S046 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-16) Santo Tomás · copper #### Identity - Hole ID: S046 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.23 - Grade Unit: % - Intercept: 14.1 m - From: 387 m - To: 401.1 m - Intercept Depth: 387 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S046:387-401.1 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974703 - Elevation: 716.6 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.3 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Copper intercept below the PEA pit, indicating potential for resource extension. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.23 Context: 14.1 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S046 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-17) Santo Tomás · molybdenum #### Identity - Hole ID: S046 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.006 - Grade Unit: % - Intercept: 14.1 m - From: 387 m - To: 401.1 m - Intercept Depth: 387 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S046:387-401.1 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974703 - Elevation: 716.6 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.006 Context: 14.1 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S046 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-18) Santo Tomás · gold #### Identity - Hole ID: S046 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.017 - Grade Unit: ppm - Intercept: 14.1 m - From: 387 m - To: 401.1 m - Intercept Depth: 387 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S046:387-401.1 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974703 - Elevation: 716.6 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.017 Context: 14.1 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S046 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-19) Santo Tomás · silver #### Identity - Hole ID: S046 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 2.48 - Grade Unit: ppm - Intercept: 14.1 m - From: 387 m - To: 401.1 m - Intercept Depth: 387 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S046:387-401.1 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974703 - Elevation: 716.6 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 2.48 Context: 14.1 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S047 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-20) Santo Tomás · copper #### Identity - Hole ID: S047 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.19 - Grade Unit: % - Intercept: 18 m - From: 41 m - To: 59 m - Intercept Depth: 41 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S047:41-59 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779301 - Northing: 2974985 - Elevation: 850.7 m - Azimuth: 90 ° - Dip: -50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.23 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Copper intercept supporting resource conversion. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.19 Context: 18 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S047 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-21) Santo Tomás · molybdenum #### Identity - Hole ID: S047 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.006 - Grade Unit: % - Intercept: 18 m - From: 41 m - To: 59 m - Intercept Depth: 41 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S047:41-59 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779301 - Northing: 2974985 - Elevation: 850.7 m - Azimuth: 90 ° - Dip: -50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.006 Context: 18 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S047 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-22) Santo Tomás · gold #### Identity - Hole ID: S047 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.012 - Grade Unit: ppm - Intercept: 18 m - From: 41 m - To: 59 m - Intercept Depth: 41 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S047:41-59 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779301 - Northing: 2974985 - Elevation: 850.7 m - Azimuth: 90 ° - Dip: -50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.012 Context: 18 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S047 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-23) Santo Tomás · silver #### Identity - Hole ID: S047 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 1.51 - Grade Unit: ppm - Intercept: 18 m - From: 41 m - To: 59 m - Intercept Depth: 41 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S047:41-59 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779301 - Northing: 2974985 - Elevation: 850.7 m - Azimuth: 90 ° - Dip: -50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 1.51 Context: 18 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S047 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-24) Santo Tomás · copper #### Identity - Hole ID: S047 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.19 - Grade Unit: % - Intercept: 11 m - From: 151 m - To: 162 m - Intercept Depth: 151 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S047:151-162 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779301 - Northing: 2974985 - Elevation: 850.7 m - Azimuth: 90 ° - Dip: -50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.25 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Copper intercept supporting resource conversion. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.19 Context: 11 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S047 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-25) Santo Tomás · molybdenum #### Identity - Hole ID: S047 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.003 - Grade Unit: % - Intercept: 11 m - From: 151 m - To: 162 m - Intercept Depth: 151 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S047:151-162 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779301 - Northing: 2974985 - Elevation: 850.7 m - Azimuth: 90 ° - Dip: -50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.003 Context: 11 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S047 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-26) Santo Tomás · gold #### Identity - Hole ID: S047 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.022 - Grade Unit: ppm - Intercept: 11 m - From: 151 m - To: 162 m - Intercept Depth: 151 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S047:151-162 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779301 - Northing: 2974985 - Elevation: 850.7 m - Azimuth: 90 ° - Dip: -50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.022 Context: 11 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S047 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-27) Santo Tomás · silver #### Identity - Hole ID: S047 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 2.56 - Grade Unit: ppm - Intercept: 11 m - From: 151 m - To: 162 m - Intercept Depth: 151 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S047:151-162 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779301 - Northing: 2974985 - Elevation: 850.7 m - Azimuth: 90 ° - Dip: -50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 2.56 Context: 11 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S047 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-28) Santo Tomás · copper #### Identity - Hole ID: S047 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.24 - Grade Unit: % - Intercept: 58.7 m - From: 253.3 m - To: 312 m - Intercept Depth: 253.3 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S047:253.3-312 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779301 - Northing: 2974985 - Elevation: 850.7 m - Azimuth: 90 ° - Dip: -50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.29 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Copper intercept supporting resource conversion. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.24 Context: 58.7 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S047 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-29) Santo Tomás · molybdenum #### Identity - Hole ID: S047 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.007 - Grade Unit: % - Intercept: 58.7 m - From: 253.3 m - To: 312 m - Intercept Depth: 253.3 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S047:253.3-312 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779301 - Northing: 2974985 - Elevation: 850.7 m - Azimuth: 90 ° - Dip: -50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.007 Context: 58.7 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S047 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-30) Santo Tomás · gold #### Identity - Hole ID: S047 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.022 - Grade Unit: ppm - Intercept: 58.7 m - From: 253.3 m - To: 312 m - Intercept Depth: 253.3 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S047:253.3-312 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779301 - Northing: 2974985 - Elevation: 850.7 m - Azimuth: 90 ° - Dip: -50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.022 Context: 58.7 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S047 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-31) Santo Tomás · silver #### Identity - Hole ID: S047 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 1.13 - Grade Unit: ppm - Intercept: 58.7 m - From: 253.3 m - To: 312 m - Intercept Depth: 253.3 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S047:253.3-312 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779301 - Northing: 2974985 - Elevation: 850.7 m - Azimuth: 90 ° - Dip: -50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 1.13 Context: 58.7 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S048 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-32) Santo Tomás · copper #### Identity - Hole ID: S048 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.33 - Grade Unit: % - Intercept: 70 m - From: 21 m - To: 91 m - Intercept Depth: 21 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S048:21-91 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974700 - Elevation: 716.8 m - Azimuth: 235 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.45 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Significant copper intercept confirming block model limits and pit design. - Positive factor: Significant Intercepts - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.33 Context: 70 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S048 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-33) Santo Tomás · molybdenum #### Identity - Hole ID: S048 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.021 - Grade Unit: % - Intercept: 70 m - From: 21 m - To: 91 m - Intercept Depth: 21 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S048:21-91 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974700 - Elevation: 716.8 m - Azimuth: 235 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.021 Context: 70 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S048 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-34) Santo Tomás · gold #### Identity - Hole ID: S048 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.012 - Grade Unit: ppm - Intercept: 70 m - From: 21 m - To: 91 m - Intercept Depth: 21 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S048:21-91 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974700 - Elevation: 716.8 m - Azimuth: 235 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.012 Context: 70 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S048 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-35) Santo Tomás · silver #### Identity - Hole ID: S048 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 2.17 - Grade Unit: ppm - Intercept: 70 m - From: 21 m - To: 91 m - Intercept Depth: 21 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S048:21-91 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974700 - Elevation: 716.8 m - Azimuth: 235 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 2.17 Context: 70 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S048 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-36) Santo Tomás · copper #### Identity - Hole ID: S048 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.35 - Grade Unit: % - Intercept: 32.8 m - From: 106 m - To: 138.8 m - Intercept Depth: 106 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S048:106-138.8 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974700 - Elevation: 716.8 m - Azimuth: 235 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.44 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Significant copper intercept confirming block model limits and pit design. - Positive factor: Significant Intercepts - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.35 Context: 32.8 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S048 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-37) Santo Tomás · molybdenum #### Identity - Hole ID: S048 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.015 - Grade Unit: % - Intercept: 32.8 m - From: 106 m - To: 138.8 m - Intercept Depth: 106 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S048:106-138.8 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974700 - Elevation: 716.8 m - Azimuth: 235 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.015 Context: 32.8 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S048 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-38) Santo Tomás · gold #### Identity - Hole ID: S048 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.01 - Grade Unit: ppm - Intercept: 32.8 m - From: 106 m - To: 138.8 m - Intercept Depth: 106 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S048:106-138.8 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974700 - Elevation: 716.8 m - Azimuth: 235 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.010 Context: 32.8 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S048 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-39) Santo Tomás · silver #### Identity - Hole ID: S048 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 2.01 - Grade Unit: ppm - Intercept: 32.8 m - From: 106 m - To: 138.8 m - Intercept Depth: 106 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S048:106-138.8 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974700 - Elevation: 716.8 m - Azimuth: 235 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 2.01 Context: 32.8 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S048 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-40) Santo Tomás · copper #### Identity - Hole ID: S048 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.22 - Grade Unit: % - Intercept: 38.5 m - From: 140.6 m - To: 179.1 m - Intercept Depth: 140.6 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S048:140.6-179.1 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974700 - Elevation: 716.8 m - Azimuth: 235 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.29 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Copper intercept confirming block model limits and pit design. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.22 Context: 38.5 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S048 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-41) Santo Tomás · molybdenum #### Identity - Hole ID: S048 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.013 - Grade Unit: % - Intercept: 38.5 m - From: 140.6 m - To: 179.1 m - Intercept Depth: 140.6 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S048:140.6-179.1 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974700 - Elevation: 716.8 m - Azimuth: 235 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.013 Context: 38.5 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S048 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-42) Santo Tomás · gold #### Identity - Hole ID: S048 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.008 - Grade Unit: ppm - Intercept: 38.5 m - From: 140.6 m - To: 179.1 m - Intercept Depth: 140.6 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S048:140.6-179.1 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974700 - Elevation: 716.8 m - Azimuth: 235 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.008 Context: 38.5 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S048 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-43) Santo Tomás · silver #### Identity - Hole ID: S048 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 1.07 - Grade Unit: ppm - Intercept: 38.5 m - From: 140.6 m - To: 179.1 m - Intercept Depth: 140.6 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S048:140.6-179.1 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778950 - Northing: 2974700 - Elevation: 716.8 m - Azimuth: 235 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 1.07 Context: 38.5 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-44) Santo Tomás · copper #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.24 - Grade Unit: % - Intercept: 10.3 m - From: 13.7 m - To: 24 m - Intercept Depth: 13.7 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:13.7-24 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.26 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Copper intercept confirming higher grade zone. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.24 Context: 10.3 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-45) Santo Tomás · molybdenum #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.003 - Grade Unit: % - Intercept: 10.3 m - From: 13.7 m - To: 24 m - Intercept Depth: 13.7 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:13.7-24 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.003 Context: 10.3 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-46) Santo Tomás · gold #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.01 - Grade Unit: ppm - Intercept: 10.3 m - From: 13.7 m - To: 24 m - Intercept Depth: 13.7 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:13.7-24 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.010 Context: 10.3 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-47) Santo Tomás · silver #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 1.38 - Grade Unit: ppm - Intercept: 10.3 m - From: 13.7 m - To: 24 m - Intercept Depth: 13.7 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:13.7-24 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 1.38 Context: 10.3 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-48) Santo Tomás · copper #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.2 - Grade Unit: % - Intercept: 51.9 m - From: 30.8 m - To: 82.7 m - Intercept Depth: 30.8 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:30.8-82.7 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.24 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Copper intercept confirming higher grade zone. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.20 Context: 51.9 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-49) Santo Tomás · molybdenum #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.005 - Grade Unit: % - Intercept: 51.9 m - From: 30.8 m - To: 82.7 m - Intercept Depth: 30.8 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:30.8-82.7 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.005 Context: 51.9 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-50) Santo Tomás · gold #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.013 - Grade Unit: ppm - Intercept: 51.9 m - From: 30.8 m - To: 82.7 m - Intercept Depth: 30.8 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:30.8-82.7 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.013 Context: 51.9 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-51) Santo Tomás · silver #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 1.23 - Grade Unit: ppm - Intercept: 51.9 m - From: 30.8 m - To: 82.7 m - Intercept Depth: 30.8 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:30.8-82.7 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 1.23 Context: 51.9 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-52) Santo Tomás · copper #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.51 - Grade Unit: % - Intercept: 86.1 m - From: 85.5 m - To: 171.6 m - Intercept Depth: 85.5 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:85.5-171.6 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.6 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Significant copper intercept reinforcing the southern higher-grade zone. - Positive factor: Significant Intercepts - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.51 Context: 86.1 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-53) Santo Tomás · molybdenum #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.007 - Grade Unit: % - Intercept: 86.1 m - From: 85.5 m - To: 171.6 m - Intercept Depth: 85.5 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:85.5-171.6 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.007 Context: 86.1 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-54) Santo Tomás · gold #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.029 - Grade Unit: ppm - Intercept: 86.1 m - From: 85.5 m - To: 171.6 m - Intercept Depth: 85.5 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:85.5-171.6 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.029 Context: 86.1 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-55) Santo Tomás · silver #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 2.81 - Grade Unit: ppm - Intercept: 86.1 m - From: 85.5 m - To: 171.6 m - Intercept Depth: 85.5 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:85.5-171.6 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 2.81 Context: 86.1 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-56) Santo Tomás · copper #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.37 - Grade Unit: % - Intercept: 131.7 m - From: 172.3 m - To: 304 m - Intercept Depth: 172.3 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:172.3-304 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.46 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Significant copper intercept reinforcing the southern higher-grade zone. - Positive factor: Significant Intercepts - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.37 Context: 131.7 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-57) Santo Tomás · molybdenum #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.015 - Grade Unit: % - Intercept: 131.7 m - From: 172.3 m - To: 304 m - Intercept Depth: 172.3 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:172.3-304 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.015 Context: 131.7 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-58) Santo Tomás · gold #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.013 - Grade Unit: ppm - Intercept: 131.7 m - From: 172.3 m - To: 304 m - Intercept Depth: 172.3 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:172.3-304 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.013 Context: 131.7 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-59) Santo Tomás · silver #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 1.79 - Grade Unit: ppm - Intercept: 131.7 m - From: 172.3 m - To: 304 m - Intercept Depth: 172.3 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:172.3-304 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 1.79 Context: 131.7 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-60) Santo Tomás · copper #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.26 - Grade Unit: % - Intercept: 17.8 m - From: 335 m - To: 352.8 m - Intercept Depth: 335 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:335-352.8 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.31 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Copper intercept reinforcing the southern higher-grade zone. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.26 Context: 17.8 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-61) Santo Tomás · molybdenum #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.005 - Grade Unit: % - Intercept: 17.8 m - From: 335 m - To: 352.8 m - Intercept Depth: 335 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:335-352.8 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.005 Context: 17.8 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-62) Santo Tomás · gold #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.009 - Grade Unit: ppm - Intercept: 17.8 m - From: 335 m - To: 352.8 m - Intercept Depth: 335 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:335-352.8 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.009 Context: 17.8 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-63) Santo Tomás · silver #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 1.81 - Grade Unit: ppm - Intercept: 17.8 m - From: 335 m - To: 352.8 m - Intercept Depth: 335 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:335-352.8 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 1.81 Context: 17.8 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-64) Santo Tomás · copper #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.29 - Grade Unit: % - Intercept: 14.5 m - From: 354.5 m - To: 369 m - Intercept Depth: 354.5 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:354.5-369 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.38 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Copper intercept reinforcing the southern higher-grade zone. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.29 Context: 14.5 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-65) Santo Tomás · molybdenum #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.011 - Grade Unit: % - Intercept: 14.5 m - From: 354.5 m - To: 369 m - Intercept Depth: 354.5 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:354.5-369 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.011 Context: 14.5 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-66) Santo Tomás · gold #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.022 - Grade Unit: ppm - Intercept: 14.5 m - From: 354.5 m - To: 369 m - Intercept Depth: 354.5 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:354.5-369 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.022 Context: 14.5 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S049 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-67) Santo Tomás · silver #### Identity - Hole ID: S049 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 1.99 - Grade Unit: ppm - Intercept: 14.5 m - From: 354.5 m - To: 369 m - Intercept Depth: 354.5 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S049:354.5-369 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779053 - Northing: 2974761 - Elevation: 744 m - Azimuth: 110 ° - Dip: -80 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 1.99 Context: 14.5 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S051 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-68) Santo Tomás · copper #### Identity - Hole ID: S051 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.46 - Grade Unit: % - Intercept: 102.3 m - From: 35 m - To: 137.3 m - Intercept Depth: 35 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S051:35-137.3 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778789 - Northing: 2975504 - Elevation: 645.2 m - Azimuth: 255 ° - Dip: -50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Significant copper intercept near surface, suggesting pit limit extension. - Positive factor: Significant Intercepts - Positive factor: Step-Out Extension - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.46 Context: 102.3 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S051 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-69) Santo Tomás · copper #### Identity - Hole ID: S051 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.04 - Grade Unit: % - Intercept: 102.3 m - From: 35 m - To: 137.3 m - Intercept Depth: 35 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S051:35-137.3 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778789 - Northing: 2975504 - Elevation: 645.2 m - Azimuth: 255 ° - Dip: -50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Soluble copper mineralization, indicating potential for oxide processing. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.04 Context: 102.3 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S051 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-70) Santo Tomás · molybdenum #### Identity - Hole ID: S051 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.001 - Grade Unit: % - Intercept: 102.3 m - From: 35 m - To: 137.3 m - Intercept Depth: 35 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S051:35-137.3 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778789 - Northing: 2975504 - Elevation: 645.2 m - Azimuth: 255 ° - Dip: -50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.001 Context: 102.3 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S051 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-71) Santo Tomás · gold #### Identity - Hole ID: S051 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.081 - Grade Unit: ppm - Intercept: 102.3 m - From: 35 m - To: 137.3 m - Intercept Depth: 35 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S051:35-137.3 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778789 - Northing: 2975504 - Elevation: 645.2 m - Azimuth: 255 ° - Dip: -50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.081 Context: 102.3 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S051 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-72) Santo Tomás · silver #### Identity - Hole ID: S051 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 3.32 - Grade Unit: ppm - Intercept: 102.3 m - From: 35 m - To: 137.3 m - Intercept Depth: 35 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S051:35-137.3 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 778789 - Northing: 2975504 - Elevation: 645.2 m - Azimuth: 255 ° - Dip: -50 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 3.32 Context: 102.3 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S053 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-73) Santo Tomás · copper #### Identity - Hole ID: S053 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.31 - Grade Unit: % - Intercept: 143.4 m - From: 15.2 m - To: 158.6 m - Intercept Depth: 15.2 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S053:15.2-158.6 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779054 - Northing: 2974760 - Elevation: 744 m - Azimuth: 120 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.36 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Significant copper intercept confirming block model and PEA pit limits. - Positive factor: Significant Intercepts - Positive factor: Infill Drilling - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.31 Context: 143.4 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S053 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-74) Santo Tomás · molybdenum #### Identity - Hole ID: S053 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.008 - Grade Unit: % - Intercept: 143.4 m - From: 15.2 m - To: 158.6 m - Intercept Depth: 15.2 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S053:15.2-158.6 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779054 - Northing: 2974760 - Elevation: 744 m - Azimuth: 120 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.008 Context: 143.4 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S053 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-75) Santo Tomás · gold #### Identity - Hole ID: S053 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.015 - Grade Unit: ppm - Intercept: 143.4 m - From: 15.2 m - To: 158.6 m - Intercept Depth: 15.2 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S053:15.2-158.6 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779054 - Northing: 2974760 - Elevation: 744 m - Azimuth: 120 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.015 Context: 143.4 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S053 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-76) Santo Tomás · silver #### Identity - Hole ID: S053 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 1.8 - Grade Unit: ppm - Intercept: 143.4 m - From: 15.2 m - To: 158.6 m - Intercept Depth: 15.2 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S053:15.2-158.6 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779054 - Northing: 2974760 - Elevation: 744 m - Azimuth: 120 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 1.80 Context: 143.4 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S053 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-77) Santo Tomás · copper #### Identity - Hole ID: S053 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.5 - Grade Unit: % - Intercept: 84.2 m - From: 159.6 m - To: 243.8 m - Intercept Depth: 159.6 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S053:159.6-243.8 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779054 - Northing: 2974760 - Elevation: 744 m - Azimuth: 120 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.58 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Significant copper intercept confirming higher-grade mineralization in the south. - Positive factor: Significant Intercepts - Positive factor: Infill Drilling - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.50 Context: 84.2 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S053 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-78) Santo Tomás · molybdenum #### Identity - Hole ID: S053 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.006 - Grade Unit: % - Intercept: 84.2 m - From: 159.6 m - To: 243.8 m - Intercept Depth: 159.6 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S053:159.6-243.8 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779054 - Northing: 2974760 - Elevation: 744 m - Azimuth: 120 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.006 Context: 84.2 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S053 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-79) Santo Tomás · gold #### Identity - Hole ID: S053 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.021 - Grade Unit: ppm - Intercept: 84.2 m - From: 159.6 m - To: 243.8 m - Intercept Depth: 159.6 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S053:159.6-243.8 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779054 - Northing: 2974760 - Elevation: 744 m - Azimuth: 120 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.021 Context: 84.2 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S053 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-80) Santo Tomás · silver #### Identity - Hole ID: S053 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 2.97 - Grade Unit: ppm - Intercept: 84.2 m - From: 159.6 m - To: 243.8 m - Intercept Depth: 159.6 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S053:159.6-243.8 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779054 - Northing: 2974760 - Elevation: 744 m - Azimuth: 120 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 2.97 Context: 84.2 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S053 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-81) Santo Tomás · copper #### Identity - Hole ID: S053 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.29 - Grade Unit: % - Intercept: 43.8 m - From: 248.1 m - To: 291.9 m - Intercept Depth: 248.1 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S053:248.1-291.9 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779054 - Northing: 2974760 - Elevation: 744 m - Azimuth: 120 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.37 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Copper intercept confirming higher-grade mineralization in the south. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.29 Context: 43.8 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S053 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-82) Santo Tomás · molybdenum #### Identity - Hole ID: S053 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.013 - Grade Unit: % - Intercept: 43.8 m - From: 248.1 m - To: 291.9 m - Intercept Depth: 248.1 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S053:248.1-291.9 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779054 - Northing: 2974760 - Elevation: 744 m - Azimuth: 120 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.013 Context: 43.8 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S053 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-83) Santo Tomás · gold #### Identity - Hole ID: S053 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.014 - Grade Unit: ppm - Intercept: 43.8 m - From: 248.1 m - To: 291.9 m - Intercept Depth: 248.1 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S053:248.1-291.9 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779054 - Northing: 2974760 - Elevation: 744 m - Azimuth: 120 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.014 Context: 43.8 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S053 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-84) Santo Tomás · silver #### Identity - Hole ID: S053 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 2.07 - Grade Unit: ppm - Intercept: 43.8 m - From: 248.1 m - To: 291.9 m - Intercept Depth: 248.1 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S053:248.1-291.9 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779054 - Northing: 2974760 - Elevation: 744 m - Azimuth: 120 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Silver mineralization contributing to the overall metal equivalent grade. - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 2.07 Context: 43.8 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S053 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-85) Santo Tomás · copper #### Identity - Hole ID: S053 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.3 - Grade Unit: % - Intercept: 126.7 m - From: 294.3 m - To: 421 m - Intercept Depth: 294.3 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S053:294.3-421 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779054 - Northing: 2974760 - Elevation: 744 m - Azimuth: 120 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Metal Eq. Grade: 0.41 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Significant copper intercept confirming higher-grade mineralization in the south. - Positive factor: Significant Intercepts - Positive factor: Infill Drilling - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.30 Context: 126.7 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S053 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-86) Santo Tomás · molybdenum #### Identity - Hole ID: S053 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.016 - Grade Unit: % - Intercept: 126.7 m - From: 294.3 m - To: 421 m - Intercept Depth: 294.3 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S053:294.3-421 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779054 - Northing: 2974760 - Elevation: 744 m - Azimuth: 120 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Molybdenum mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.016 Context: 126.7 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S053 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-87) Santo Tomás · gold #### Identity - Hole ID: S053 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.014 - Grade Unit: ppm - Intercept: 126.7 m - From: 294.3 m - To: 421 m - Intercept Depth: 294.3 m #### Classification - Deposit Type: porphyry - Program: resource - Sample Type: drill - Group ID: S053:294.3-421 - Mining Method: open\_pit #### Location - Location: South Zone - Easting: 779054 - Northing: 2974760 - Elevation: 744 m - Azimuth: 120 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: Yes - Deleterious Elements: zinc, lead, silver, gold, copper, sulphur #### Metal Equivalent - Assumptions Disclosed: Yes #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: % Cu - Max Dilution: 4 m #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Gold mineralization contributing to the overall metal equivalent grade. - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · table > 0.014 Context: 126.7 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Deleterious Elements Present** Polarity: negative Definition: Penalty elements \(arsenic, antimony, etc.\) or refractory concerns noted in the release. Why it applies: deleterious\_flag is true **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### S053 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-88) Santo Tomás · silver #### Identity - Hole ID: S053 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 2.67 - Grade Unit: ppm - Intercept: 126.7 m - From: 294.3 m - To: 421 m - Intercept Depth: 294.3 m #### Classification - Deposit Type: porphyry - Sample Type: drill - Group ID: S053:294.3-421 - Mining Method: open\_pit #### Location - Location: South Zone - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Expanded from assay table: 2.67 ppm silver, reported in a unit the rubric does not cover \(g/t\). - Negative factor: Grade unit ppm does not match the silver rubric unit g/t; not scored. Evidence · table > 2.67 Context: S053 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### S056 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-89) Santo Tomás · molybdenum #### Identity - Hole ID: S056 - Project: Santo Tomás - Commodity: molybdenum - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.013 - Grade Unit: % - Intercept: 95.4 m - From: 40.6 m - To: 136 m - Intercept Depth: 40.6 m #### Classification - Deposit Type: porphyry - Sample Type: drill - Group ID: S056:40.6-136 - Mining Method: open\_pit #### Location - Location: South Zone - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Expanded from assay table: 0.013 % molybdenum. No grade band defined for this commodity, so the score is a placeholder. - Negative factor: No grade rubric for molybdenum; intercept not scored. Evidence · table > 0.013 Context: S056 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### S056 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-90) Santo Tomás · gold #### Identity - Hole ID: S056 - Project: Santo Tomás - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.021 - Grade Unit: ppm - Intercept: 95.4 m - From: 40.6 m - To: 136 m - Intercept Depth: 40.6 m #### Classification - Deposit Type: porphyry - Sample Type: drill - Group ID: S056:40.6-136 - Mining Method: open\_pit #### Location - Location: South Zone - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Expanded from assay table: 0.021 ppm gold, reported in a unit the rubric does not cover \(g/t\). - Negative factor: Grade unit ppm does not match the gold rubric unit g/t; not scored. Evidence · table > 0.021 Context: S056 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### S056 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-91) Santo Tomás · silver #### Identity - Hole ID: S056 - Project: Santo Tomás - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 2.17 - Grade Unit: ppm - Intercept: 95.4 m - From: 40.6 m - To: 136 m - Intercept Depth: 40.6 m #### Classification - Deposit Type: porphyry - Sample Type: drill - Group ID: S056:40.6-136 - Mining Method: open\_pit #### Location - Location: South Zone - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Expanded from assay table: 2.17 ppm silver, reported in a unit the rubric does not cover \(g/t\). - Negative factor: Grade unit ppm does not match the silver rubric unit g/t; not scored. Evidence · table > 2.17 Context: S056 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### S044 [Link to this fact](https://atlas-staging.minestarters.com/news/oroco-drills-234-6-metres-of-0-52-cueq-at-santo-toma-s--3151fc09-aa6b-49d9-9b91-3e265a8ba73d#fact-drill-facts-92) Santo Tomás · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: S044 - Project: Santo Tomás - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: OCO #### Geometry - Grade: 0.43 - Grade Unit: % - Intercept: 234.6 m - From: 174.1 m - To: 408.7 m #### Classification - Deposit Type: porphyry - Sample Type: drill #### Location - Location: South Zone - Loc. Source: document #### QA/QC - Laboratory: ALS Chemex and ALS Canada Ltd. - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-08T00:00:00.000Z Reasoning: Broad intercept of copper mineralization supporting the block model and resource conversion. - Positive factor: Significant Intercepts - Positive factor: Infill Drilling - Positive factor: Resource Conversion Potential - Negative factor: Apparent Width Only - Negative factor: Metal Equivalent Opaque - Negative factor: Deleterious Elements Present Evidence · text > 234.6 m at 0.43% Cu \(0.52% CuEq\) from 174.1 m #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ## How Atlas produces this analysis Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.