# Orosur Mining Announces Anza Activity Accelerating Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/orosur-mining-announces-anza-activity-accelerating--4c927424-cd26-4328-a117-c138cff586e0 Original source: https://www.newsfilecorp.com/release/312424/Orosur-Mining-Announces-Anza-Activity-Accelerating Publisher: newsfile Original announcement: 2026-09-02T06:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Orosur Mining Inc. - Ticker: OMI - Exchange: Unavailable - Region: Colombia - Primary commodity: Gold - Secondary commodities: None reported - Document categories: Drill results - Extracted: 2026-09-02 06:02:35 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary Orosur Mining Inc. announced accelerated exploration activities at its Anzá project in Colombia, with drilling now underway at three prospects: El Cedro, Pepas West, and APTA. The first-ever drilling campaign has commenced at the El Cedro gold-copper porphyry target, while recent results from Pepas West continue to define a new shallow gold zone. At APTA, a broad, low-grade intercept provided insights into structural controls for future resource definition. Reasoning: Orosur Mining is accelerating exploration at its Anzá project in Colombia, with new drilling commencing at the El Cedro gold-copper porphyry target and ongoing work defining a new shallow gold zone at Pepas West. While some results are low-grade, the overall increase in activity and new target generation is positive for future growth. - Positive factor: new drilling commenced at El Cedro porphyry target - Positive factor: new shallow gold zone defined at Pepas West - Positive factor: increased exploration activity with three rigs running - Negative factor: true widths unknown for all intercepts - Negative factor: APTA intercept is broad but low-grade Facts used in scoring: 5 ## Classification and evidence **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: The release includes a detailed section on 'Qualified Persons Statement' and 'Orosur Mining Inc. staff follow standard operating and quality assurance procedures' mentioning blanks, standards, and CRMs. Evidence · text > Orosur Mining Inc. staff follow standard operating and quality assurance procedures to ensure that sampling techniques and sample results meet international reporting standards. Drill core is split in half over widths that vary between 0.3m and 2m, depending upon the geological domain. One half is kept on site in the Minera Anzá core storage facility in the case of the Anza Project, or on site in temporary racks in the case of the El Pantano Project, with the other sent for assay. Industry standard QAQC protocols are put in place with approximately 10% of total submitted samples being blanks, repeats or Certified Reference Materials \(CRMs\). **QP/CP Signed** Polarity: positive Story-specific tag Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: The news release states that Mr. Brad George, CEO of Orosur Mining Inc., is a qualified person as defined by National Instrument 43-101 and approved the information. Evidence · text > The information in this news release was compiled, reviewed, verified and approved by Mr. Brad George, BSc Hons \(Geology and Geophysics\), MBA, Member of the Australian Institute of Geoscientists \(MAIG\), CEO of Orosur Mining Inc. and a qualified person as defined by National Instrument 43-101. **Apparent Width Only** Polarity: negative Definition: Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness. Why it applies: The document explicitly states that 'Intersections are quoted as downhole thicknesses. True thicknesses are unknown.' Evidence · text > Intersections are quoted as downhole thicknesses. True thicknesses are unknown. **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: Pepas West is described as a 'new zone of shallow mineralisation being identified roughly 100m to the west of Pepas'. Evidence · text > The Company achieved immediate success with a new zone of shallow mineralisation being identified roughly 100m to the west of Pepas **Exploration Drilling** Polarity: neutral Story-specific tag Definition: No canonical definition is currently available. Why it applies: The drilling at El Cedro is described as the 'first drilling campaign ever undertaken' and Pepas West is part of a 'semi-regional drilling program' to 'develop vectors toward additional mineralisation'. Evidence · text > the first drilling campaign ever undertaken at El Cedro, began in late August 2026 **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: The current drill plan at APTA is 'designed to better understand the geological controls upon the previously defined high-grade mineralisation that may then assist in planning a future resource drill out program'. Evidence · text > The current drill plan at APTA is designed to better understand the geological controls upon the previously defined high-grade mineralisation that may then assist in planning a future resource drill out program if results warrant. **Cut-off Disclosed** Polarity: positive Story-specific tag Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: The document states that 'Gold intersections are reported using a lower cut-off of 0.3g/t Au over 3m'. Evidence · text > Gold intersections are reported using a lower cut-off of 0.3g/t Au over 3m. ## Extracted facts Stored fact records: 5. Some facts used in scoring do not have a stored record. ## Drill Results (5) ### PEP106 [Link to this fact](https://atlas-staging.minestarters.com/news/orosur-mining-announces-anza-activity-accelerating--4c927424-cd26-4328-a117-c138cff586e0#fact-drill-facts-0) Pepas West · gold #### Identity - Hole ID: PEP106 - Project: Pepas West - Commodity: gold - Ticker: OMI #### Geometry - Grade: 1.02 - Grade Unit: g/t - Intercept: 19.45 m - From: 0 m - To: 19.45 m #### Classification - Program: exploration - Sample Type: drill - Group ID: PEP106:0.0-19.45 - Mining Method: open\_pit #### Location - Easting: 403325 - Northing: 704908 - CRS: WGS84, UTM Zone 18 - Elevation: 992 m - Azimuth: 220 ° - Dip: -50 ° #### QA/QC - Laboratory: Actlabs - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates #### Compositing - Cutoff Grade: 0.3 - Cutoff Unit: g/t #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-02T00:00:00.000Z Reasoning: Intercept confirms shallow gold mineralization at Pepas West with moderate grade and good width, contributing to the definition of a new zone. - Positive factor: moderate grade - Positive factor: good width - Positive factor: shallow mineralization - Negative factor: apparent width only Evidence · table > 1.02 Context: 19.45 ### PEP106 [Link to this fact](https://atlas-staging.minestarters.com/news/orosur-mining-announces-anza-activity-accelerating--4c927424-cd26-4328-a117-c138cff586e0#fact-drill-facts-1) Pepas West · gold #### Identity - Hole ID: PEP106 - Project: Pepas West - Commodity: gold - Ticker: OMI #### Geometry - Grade: 3.11 - Grade Unit: g/t - Intercept: 2.25 m - From: 0 m - To: 2.25 m #### Classification - Program: exploration - Sample Type: drill - Group ID: PEP106:0.0-2.25 - Mining Method: open\_pit #### Location - Easting: 403325 - Northing: 704908 - CRS: WGS84, UTM Zone 18 - Elevation: 992 m - Azimuth: 220 ° - Dip: -50 ° #### QA/QC - Laboratory: Actlabs - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates #### Compositing - Cutoff Grade: 0.3 - Cutoff Unit: g/t #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-02T00:00:00.000Z Reasoning: High-grade sub-interval within PEP106, but over a very narrow width, indicating localized higher-grade zones. - Positive factor: strong grade - Positive factor: shallow mineralization - Negative factor: narrow width - Negative factor: apparent width only Evidence · table > 3.11 Context: 2.25 ### PEP106 [Link to this fact](https://atlas-staging.minestarters.com/news/orosur-mining-announces-anza-activity-accelerating--4c927424-cd26-4328-a117-c138cff586e0#fact-drill-facts-2) Pepas West · gold #### Identity - Hole ID: PEP106 - Project: Pepas West - Commodity: gold - Ticker: OMI #### Geometry - Grade: 3.09 - Grade Unit: g/t - Intercept: 1.1 m - From: 11.1 m - To: 12.2 m #### Classification - Program: exploration - Sample Type: drill - Group ID: PEP106:11.1-12.2 - Mining Method: open\_pit #### Location - Easting: 403325 - Northing: 704908 - CRS: WGS84, UTM Zone 18 - Elevation: 992 m - Azimuth: 220 ° - Dip: -50 ° #### QA/QC - Laboratory: Actlabs - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates #### Compositing - Cutoff Grade: 0.3 - Cutoff Unit: g/t #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-02T00:00:00.000Z Reasoning: Another high-grade sub-interval within PEP106, but over a very narrow width, indicating localized higher-grade zones. - Positive factor: strong grade - Positive factor: shallow mineralization - Negative factor: very narrow width - Negative factor: apparent width only Evidence · table > 3.09 Context: 1.1 ### PEP107 [Link to this fact](https://atlas-staging.minestarters.com/news/orosur-mining-announces-anza-activity-accelerating--4c927424-cd26-4328-a117-c138cff586e0#fact-drill-facts-3) Pepas West · gold #### Identity - Hole ID: PEP107 - Project: Pepas West - Commodity: gold - Ticker: OMI #### Geometry - Grade: 0.47 - Grade Unit: g/t - Intercept: 7.6 m - From: 0 m - To: 7.6 m #### Classification - Program: exploration - Sample Type: drill - Group ID: PEP107:0.0-7.6 - Mining Method: open\_pit #### Location - Easting: 403325 - Northing: 704908 - CRS: WGS84, UTM Zone 18 - Elevation: 992 m - Azimuth: 220 ° - Dip: -75 ° #### QA/QC - Laboratory: Actlabs - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates #### Compositing - Cutoff Grade: 0.3 - Cutoff Unit: g/t #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-02T00:00:00.000Z Reasoning: Shallow intercept at Pepas West with weak gold grade, contributing to the understanding of the surficial zone but not high-grade. - Positive factor: shallow mineralization - Negative factor: weak grade - Negative factor: apparent width only Evidence · table > 0.47 Context: 7.6 ### MAP108 [Link to this fact](https://atlas-staging.minestarters.com/news/orosur-mining-announces-anza-activity-accelerating--4c927424-cd26-4328-a117-c138cff586e0#fact-drill-facts-4) APTA · gold #### Identity - Hole ID: MAP108 - Project: APTA - Commodity: gold - Ticker: OMI #### Geometry - Grade: 0.38 - Grade Unit: g/t - Intercept: 78.95 m - From: 134.8 m - To: 213.75 m #### Classification - Program: resource - Sample Type: drill - Group ID: MAP108:134.8-213.75 - Mining Method: open\_pit #### Location - Easting: 399922 - Northing: 694779 - CRS: WGS84, UTM Zone 18 - Elevation: 1098 m - Azimuth: 298 ° - Dip: -76 ° #### QA/QC - Laboratory: Actlabs - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates #### Compositing - Cutoff Grade: 0.3 - Cutoff Unit: g/t #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-02T00:00:00.000Z Reasoning: Broad intercept at APTA with weak gold grade, providing geological insight into structural controls rather than high-grade mineralization. - Positive factor: very good width - Positive factor: defines structural controls - Negative factor: weak grade - Negative factor: apparent width only Evidence · table > 0.38 Context: 78.95 ## 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.