# HCH: Corporate Presentation London Metals Exchange Week Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58 Original source: https://www.asx.com.au/asx/v2/statistics/displayAnnouncement.do?display=pdf&idsId=03154330 Publisher: asx Original announcement: 2026-10-19T21:21:00.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-10-19T22:38:00.775Z Atlas analysis updated: 2026-10-19T22:38:00.775Z - Company: Hot Chili Limited - Ticker: HCH - Exchange: ASX - Region: Huasco Valley, Chile - Primary commodity: Copper - Secondary commodities: Gold, Molybdenum, Silver - Document categories: Drill results, Other, Resource update, Metallurgy - Extracted: 2026-10-19 22:38:01 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Hot Chili Limited presented a corporate overview highlighting the recent discovery of a second porphyry center, La Verde South, with a significant copper-gold intercept from drill hole DKP084. The company also reiterated strong pre-feasibility study results for its Costa Fuego copper-gold project, demonstrating robust economics and strategic advantages including water assets. Ongoing drilling at La Verde aims to support a maiden Mineral Resource Estimate, and metallurgical testwork indicates clean concentrates. Reasoning: The presentation highlights a new copper-gold porphyry discovery at La Verde South with a significant drill intercept, strong economic study results for the Costa Fuego project, and strategic water assets, all contributing to a positive outlook for the company. While some information is a summary of prior releases, the new discovery and ongoing drilling provide fresh positive updates. - Positive factor: New porphyry discovery \(La Verde South\) - Positive factor: Significant drill intercept \(DKP084\) with strong copper grades and width - Positive factor: Strong economic study results \(PFS\) for Costa Fuego project \(NPV, IRR, low C1 cost\) - Positive factor: Strategic water assets with positive PFS economics - Positive factor: High Measured and Indicated \(M&I\) percentage in Costa Fuego resources \(80%\) - Positive factor: JORC and NI 43-101 compliant reporting for resources and reserves - Positive factor: Detailed metal equivalent assumptions disclosed for both drill results and resource estimates - Positive factor: Extensive metallurgical testwork completed with clean concentrate and low deleterious elements - Negative factor: Some drill results are visual estimates only \(DKD100\) without assays - Negative factor: Assays pending for a significant number of holes \(25\) - Negative factor: PFS and MREs are from March 2025, so not brand new information in October 2026 - Negative factor: Arsenic present in concentrate, though at low levels \(44 ppm\) Low confidence — this extraction should be reviewed alongside the original source. Facts used in scoring: 74 ## Classification and evidence **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: the document describes a mill\_cil route \("concentrator"\) ## Extracted facts Stored fact records: 74. Some facts used in scoring do not have a stored record. ## Drill Results (25) ### DKP002 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-0) La Verde South · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKP002 - Project: La Verde South - Commodity: copper - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Grade: 0.5 - Grade Unit: % - Intercept: 308 m - From: 46 m - To: 354 m - Intercept Depth: 46 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKP002:46-354 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows strong copper grades over a significant width, indicative of a robust porphyry system. - Positive factor: Strong copper grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Good grade-thickness product - Negative factor: Historical result, low novelty Evidence · text > DKP002 – 308m @ 0.65% CuEq1 \(0.5% Cu, 0.3 g/t Au\) from 46m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKP002 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-1) La Verde South · gold Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKP002 - Project: La Verde South - Commodity: gold - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Grade: 0.3 - Grade Unit: g/t - Intercept: 308 m - From: 46 m - To: 354 m - Intercept Depth: 46 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKP002:46-354 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows good gold grades over a significant width, contributing to the overall value of the porphyry system. - Positive factor: Good gold grade for porphyry deposit - Positive factor: Continuous intercept width - Negative factor: Historical result, low novelty Evidence · text > DKP002 – 308m @ 0.65% CuEq1 \(0.5% Cu, 0.3 g/t Au\) from 46m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKP002 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-2) La Verde South · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKP002 - Project: La Verde South - Commodity: copper - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Intercept: 308 m - From: 46 m - To: 354 m - Intercept Depth: 46 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKP002:46-354 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Metal Eq. Grade: 0.65 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows a strong copper equivalent grade over a significant width, indicating good overall mineralization. - Positive factor: Strong copper equivalent grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Detailed metal equivalent assumptions disclosed - Negative factor: Historical result, low novelty Evidence · text > DKP002 – 308m @ 0.65% CuEq1 \(0.5% Cu, 0.3 g/t Au\) from 46m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKD032 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-3) La Verde South · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKD032 - Project: La Verde South - Commodity: copper - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Grade: 0.41 - Grade Unit: % - Intercept: 529 m - From: 41 m - To: 570 m - Intercept Depth: 41 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKD032:41-570 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows strong copper grades over a very significant width, confirming the scale of the La Verde discovery. - Positive factor: Strong copper grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Good grade-thickness product - Negative factor: Historical result, low novelty Evidence · text > DKD032 – 529m @ 0.56% CuEq \(0.41% Cu, 0.21 g/t Au\) from 41m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKD032 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-4) La Verde South · gold Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKD032 - Project: La Verde South - Commodity: gold - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Grade: 0.21 - Grade Unit: g/t - Intercept: 529 m - From: 41 m - To: 570 m - Intercept Depth: 41 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKD032:41-570 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows good gold grades over a very significant width, contributing to the overall value of the porphyry system. - Positive factor: Good gold grade for porphyry deposit - Positive factor: Continuous intercept width - Negative factor: Historical result, low novelty Evidence · text > DKD032 – 529m @ 0.56% CuEq \(0.41% Cu, 0.21 g/t Au\) from 41m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKD032 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-5) La Verde South · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKD032 - Project: La Verde South - Commodity: copper - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Intercept: 529 m - From: 41 m - To: 570 m - Intercept Depth: 41 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKD032:41-570 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Metal Eq. Grade: 0.56 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows a strong copper equivalent grade over a very significant width, confirming the scale of the La Verde discovery. - Positive factor: Strong copper equivalent grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Detailed metal equivalent assumptions disclosed - Negative factor: Historical result, low novelty Evidence · text > DKD032 – 529m @ 0.56% CuEq \(0.41% Cu, 0.21 g/t Au\) from 41m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKD039 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-6) La Verde South · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKD039 - Project: La Verde South - Commodity: copper - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Grade: 0.36 - Grade Unit: % - Intercept: 725 m - From: 18 m - To: 743 m - Intercept Depth: 18 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKD039:18-743 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows strong copper grades over an exceptionally wide interval, representing the widest intersection to date and continued expansion of the higher-grade core. - Positive factor: Strong copper grade for porphyry deposit - Positive factor: Exceptional intercept width - Positive factor: Good grade-thickness product - Negative factor: Historical result, low novelty Evidence · text > DKD039 – 725m @ 0.42% CuEq \(0.36% Cu, 0.07 g/t Au\) from 18m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKD039 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-7) La Verde South · gold Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKD039 - Project: La Verde South - Commodity: gold - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Grade: 0.07 - Grade Unit: g/t - Intercept: 725 m - From: 18 m - To: 743 m - Intercept Depth: 18 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKD039:18-743 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows moderate gold grades over an exceptionally wide interval, contributing to the overall mineralization. - Positive factor: Moderate gold grade for porphyry deposit - Positive factor: Exceptional intercept width - Negative factor: Historical result, low novelty Evidence · text > DKD039 – 725m @ 0.42% CuEq \(0.36% Cu, 0.07 g/t Au\) from 18m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKD039 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-8) La Verde South · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKD039 - Project: La Verde South - Commodity: copper - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Intercept: 725 m - From: 18 m - To: 743 m - Intercept Depth: 18 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKD039:18-743 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Metal Eq. Grade: 0.42 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows a strong copper equivalent grade over an exceptionally wide interval, representing the widest intersection to date. - Positive factor: Strong copper equivalent grade for porphyry deposit - Positive factor: Exceptional intercept width - Positive factor: Detailed metal equivalent assumptions disclosed - Negative factor: Historical result, low novelty Evidence · text > DKD039 – 725m @ 0.42% CuEq \(0.36% Cu, 0.07 g/t Au\) from 18m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKD044 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-9) La Verde South · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKD044 - Project: La Verde South - Commodity: copper - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Grade: 0.42 - Grade Unit: % - Intercept: 391 m - From: 0 m - To: 391 m - Intercept Depth: 0 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKD044:0-391 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows strong copper grades over a significant width, starting from surface, indicating good near-surface potential. - Positive factor: Strong copper grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Good grade-thickness product - Positive factor: Starts from surface - Negative factor: Historical result, low novelty Evidence · text > DKD044 – 391m @ 0.52% CuEq \(0.42% Cu, 0.11 g/t Au\) from surface #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKD044 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-10) La Verde South · gold Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKD044 - Project: La Verde South - Commodity: gold - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Grade: 0.11 - Grade Unit: g/t - Intercept: 391 m - From: 0 m - To: 391 m - Intercept Depth: 0 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKD044:0-391 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows good gold grades over a significant width, starting from surface, contributing to the overall mineralization. - Positive factor: Good gold grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Starts from surface - Negative factor: Historical result, low novelty Evidence · text > DKD044 – 391m @ 0.52% CuEq \(0.42% Cu, 0.11 g/t Au\) from surface #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKD044 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-11) La Verde South · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKD044 - Project: La Verde South - Commodity: copper - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Intercept: 391 m - From: 0 m - To: 391 m - Intercept Depth: 0 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKD044:0-391 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Metal Eq. Grade: 0.52 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows a strong copper equivalent grade over a significant width, starting from surface, indicating good near-surface potential. - Positive factor: Strong copper equivalent grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Detailed metal equivalent assumptions disclosed - Positive factor: Starts from surface - Negative factor: Historical result, low novelty Evidence · text > DKD044 – 391m @ 0.52% CuEq \(0.42% Cu, 0.11 g/t Au\) from surface #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKP063 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-12) La Verde South · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKP063 - Project: La Verde South - Commodity: copper - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Grade: 0.7 - Grade Unit: % - Intercept: 62 m - From: 20 m - To: 82 m - Intercept Depth: 20 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKP063:20-82 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows exceptional copper grades over a continuous width, indicating high-grade near-surface mineralization. - Positive factor: Exceptional copper grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Good grade-thickness product - Positive factor: Near-surface mineralization - Negative factor: Historical result, low novelty Evidence · text > DKP063 – 62m @ 0.91% CuEq \(0.70% Cu, 0.30 g/t Au\) from 20m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKP063 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-13) La Verde South · gold Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKP063 - Project: La Verde South - Commodity: gold - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Grade: 0.3 - Grade Unit: g/t - Intercept: 62 m - From: 20 m - To: 82 m - Intercept Depth: 20 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKP063:20-82 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows good gold grades over a continuous width, contributing to the high-grade near-surface mineralization. - Positive factor: Good gold grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Near-surface mineralization - Negative factor: Historical result, low novelty Evidence · text > DKP063 – 62m @ 0.91% CuEq \(0.70% Cu, 0.30 g/t Au\) from 20m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKP063 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-14) La Verde South · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKP063 - Project: La Verde South - Commodity: copper - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Intercept: 62 m - From: 20 m - To: 82 m - Intercept Depth: 20 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKP063:20-82 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Metal Eq. Grade: 0.91 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows an exceptional copper equivalent grade over a continuous width, indicating high-grade near-surface mineralization. - Positive factor: Exceptional copper equivalent grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Detailed metal equivalent assumptions disclosed - Positive factor: Near-surface mineralization - Negative factor: Historical result, low novelty Evidence · text > DKP063 – 62m @ 0.91% CuEq \(0.70% Cu, 0.30 g/t Au\) from 20m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKP184 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-15) La Verde South · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKP184 - Project: La Verde South - Commodity: copper - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Grade: 0.39 - Grade Unit: % - Intercept: 148 m - From: 36 m - To: 184 m - Intercept Depth: 36 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKP184:36-184 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows strong copper grades over a significant width, confirming a new porphyry center at La Verde South. - Positive factor: Strong copper grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Good grade-thickness product - Positive factor: Part of a new porphyry center discovery - Negative factor: Historical result, low novelty Evidence · text > DKP184 – 148m @ 0.44% CuEq \(0.39% Cu, 0.07 g/t Au\) from 36m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKP184 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-16) La Verde South · gold Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKP184 - Project: La Verde South - Commodity: gold - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Grade: 0.07 - Grade Unit: g/t - Intercept: 148 m - From: 36 m - To: 184 m - Intercept Depth: 36 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKP184:36-184 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows moderate gold grades over a significant width, contributing to the new porphyry center at La Verde South. - Positive factor: Moderate gold grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Part of a new porphyry center discovery - Negative factor: Historical result, low novelty Evidence · text > DKP184 – 148m @ 0.44% CuEq \(0.39% Cu, 0.07 g/t Au\) from 36m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKP184 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-17) La Verde South · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: DKP184 - Project: La Verde South - Commodity: copper - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Intercept: 148 m - From: 36 m - To: 184 m - Intercept Depth: 36 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKP184:36-184 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Metal Eq. Grade: 0.44 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical intercept shows a strong copper equivalent grade over a significant width, confirming a new porphyry center at La Verde South. - Positive factor: Strong copper equivalent grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Detailed metal equivalent assumptions disclosed - Positive factor: Part of a new porphyry center discovery - Negative factor: Historical result, low novelty Evidence · text > DKP184 – 148m @ 0.44% CuEq \(0.39% Cu, 0.07 g/t Au\) from 36m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release ### DKP084 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-18) La Verde South · copper #### Identity - Hole ID: DKP084 - Project: La Verde South - Commodity: copper - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Grade: 0.39 - Grade Unit: % - Intercept: 148 m - From: 36 m - To: 184 m - Intercept Depth: 36 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKP084:36-184 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This new intercept from step-out drilling confirms a second porphyry center at La Verde South with strong copper grades over a significant width, indicating a material extension of mineralization. - Positive factor: Strong copper grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Good grade-thickness product - Positive factor: Confirms new porphyry center \(La Verde South\) - Positive factor: Step-out drilling extension Evidence · text > 148m @ 0.44% CuEq¹ \(0.39% Cu, 0.07g/t Au\) from 36m depth #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 #### Rejected tags **Step-Out Extension** — Rejected; excluded from scoring Polarity: positive Definition: Mineralization extended beyond the previously known limit. Reason: RC drill hole DKP084 was collared ~250m south of La Verde’s +0.4% Cu mineralisation footprint and returned: 148m @ 0.44% CuEq¹ \(0.39% Cu, 0.07g/t Au\) from 36m depth Evidence · text > RC drill hole DKP084 was collared ~250m south of La Verde’s +0.4% Cu mineralisation footprint and returned: 148m @ 0.44% CuEq¹ \(0.39% Cu, 0.07g/t Au\) from 36m depth ### DKP084 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-19) La Verde South · gold #### Identity - Hole ID: DKP084 - Project: La Verde South - Commodity: gold - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Grade: 0.07 - Grade Unit: g/t - Intercept: 148 m - From: 36 m - To: 184 m - Intercept Depth: 36 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKP084:36-184 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This new intercept from step-out drilling confirms a second porphyry center at La Verde South with moderate gold grades over a significant width, contributing to the overall mineralization. - Positive factor: Moderate gold grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Confirms new porphyry center \(La Verde South\) - Positive factor: Step-out drilling extension Evidence · text > 148m @ 0.44% CuEq¹ \(0.39% Cu, 0.07g/t Au\) from 36m depth #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 #### Rejected tags **Step-Out Extension** — Rejected; excluded from scoring Polarity: positive Definition: Mineralization extended beyond the previously known limit. Reason: RC drill hole DKP084 was collared ~250m south of La Verde’s +0.4% Cu mineralisation footprint and returned: 148m @ 0.44% CuEq¹ \(0.39% Cu, 0.07g/t Au\) from 36m depth Evidence · text > RC drill hole DKP084 was collared ~250m south of La Verde’s +0.4% Cu mineralisation footprint and returned: 148m @ 0.44% CuEq¹ \(0.39% Cu, 0.07g/t Au\) from 36m depth ### DKP084 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-20) La Verde South · copper #### Identity - Hole ID: DKP084 - Project: La Verde South - Commodity: copper - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Intercept: 148 m - From: 36 m - To: 184 m - Intercept Depth: 36 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKP084:36-184 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Metal Eq. Grade: 0.44 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This new intercept from step-out drilling confirms a second porphyry center at La Verde South with a strong copper equivalent grade over a significant width, indicating a material extension of mineralization. - Positive factor: Strong copper equivalent grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Detailed metal equivalent assumptions disclosed - Positive factor: Confirms new porphyry center \(La Verde South\) - Positive factor: Step-out drilling extension Evidence · text > 148m @ 0.44% CuEq¹ \(0.39% Cu, 0.07g/t Au\) from 36m depth #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 #### Rejected tags **Step-Out Extension** — Rejected; excluded from scoring Polarity: positive Definition: Mineralization extended beyond the previously known limit. Reason: RC drill hole DKP084 was collared ~250m south of La Verde’s +0.4% Cu mineralisation footprint and returned: 148m @ 0.44% CuEq¹ \(0.39% Cu, 0.07g/t Au\) from 36m depth Evidence · text > RC drill hole DKP084 was collared ~250m south of La Verde’s +0.4% Cu mineralisation footprint and returned: 148m @ 0.44% CuEq¹ \(0.39% Cu, 0.07g/t Au\) from 36m depth ### DKP084 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-21) La Verde South · copper #### Identity - Hole ID: DKP084 - Project: La Verde South - Commodity: copper - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Grade: 0.5 - Grade Unit: % - Intercept: 44 m - From: 138 m - To: 182 m - Intercept Depth: 138 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKP084:138-182 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This new high-grade sub-interval from step-out drilling confirms a second porphyry center at La Verde South with strong copper grades over a significant width, indicating a material extension of mineralization. - Positive factor: Strong copper grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Good grade-thickness product - Positive factor: High-grade sub-interval within a broader intercept - Positive factor: Confirms new porphyry center \(La Verde South\) - Positive factor: Step-out drilling extension Evidence · text > including 44m @ 0.56% CuEq \(0.50% Cu, 0.06g/t Au\) from 138m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 #### Rejected tags **Bonanza Intercept** — Rejected; excluded from scoring Polarity: positive Definition: Exceptionally high-grade zone, well above the deposit-type norm. Reason: 0.50% Cu over 44m is a strong grade-width product for a porphyry deposit. Evidence · text > including 44m @ 0.56% CuEq \(0.50% Cu, 0.06g/t Au\) from 138m **Step-Out Extension** — Rejected; excluded from scoring Polarity: positive Definition: Mineralization extended beyond the previously known limit. Reason: RC drill hole DKP084 was collared ~250m south of La Verde’s +0.4% Cu mineralisation footprint and returned: 148m @ 0.44% CuEq¹ \(0.39% Cu, 0.07g/t Au\) from 36m depth Evidence · text > RC drill hole DKP084 was collared ~250m south of La Verde’s +0.4% Cu mineralisation footprint and returned: 148m @ 0.44% CuEq¹ \(0.39% Cu, 0.07g/t Au\) from 36m depth ### DKP084 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-22) La Verde South · gold #### Identity - Hole ID: DKP084 - Project: La Verde South - Commodity: gold - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Grade: 0.06 - Grade Unit: g/t - Intercept: 44 m - From: 138 m - To: 182 m - Intercept Depth: 138 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKP084:138-182 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This new high-grade sub-interval from step-out drilling confirms a second porphyry center at La Verde South with moderate gold grades over a significant width, contributing to the overall mineralization. - Positive factor: Moderate gold grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: High-grade sub-interval within a broader intercept - Positive factor: Confirms new porphyry center \(La Verde South\) - Positive factor: Step-out drilling extension Evidence · text > including 44m @ 0.56% CuEq \(0.50% Cu, 0.06g/t Au\) from 138m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 #### Rejected tags **Step-Out Extension** — Rejected; excluded from scoring Polarity: positive Definition: Mineralization extended beyond the previously known limit. Reason: RC drill hole DKP084 was collared ~250m south of La Verde’s +0.4% Cu mineralisation footprint and returned: 148m @ 0.44% CuEq¹ \(0.39% Cu, 0.07g/t Au\) from 36m depth Evidence · text > RC drill hole DKP084 was collared ~250m south of La Verde’s +0.4% Cu mineralisation footprint and returned: 148m @ 0.44% CuEq¹ \(0.39% Cu, 0.07g/t Au\) from 36m depth ### DKP084 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-23) La Verde South · copper #### Identity - Hole ID: DKP084 - Project: La Verde South - Commodity: copper - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Intercept: 44 m - From: 138 m - To: 182 m - Intercept Depth: 138 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: DKP084:138-182 - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Metal Eq. Grade: 0.56 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This new high-grade sub-interval from step-out drilling confirms a second porphyry center at La Verde South with a strong copper equivalent grade over a significant width, indicating a material extension of mineralization. - Positive factor: Strong copper equivalent grade for porphyry deposit - Positive factor: Continuous intercept width - Positive factor: Detailed metal equivalent assumptions disclosed - Positive factor: High-grade sub-interval within a broader intercept - Positive factor: Confirms new porphyry center \(La Verde South\) - Positive factor: Step-out drilling extension Evidence · text > including 44m @ 0.56% CuEq \(0.50% Cu, 0.06g/t Au\) from 138m #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 #### Rejected tags **Bonanza Intercept** — Rejected; excluded from scoring Polarity: positive Definition: Exceptionally high-grade zone, well above the deposit-type norm. Reason: 0.56% CuEq over 44m is a strong grade-width product for a porphyry deposit. Evidence · text > including 44m @ 0.56% CuEq \(0.50% Cu, 0.06g/t Au\) from 138m **Step-Out Extension** — Rejected; excluded from scoring Polarity: positive Definition: Mineralization extended beyond the previously known limit. Reason: RC drill hole DKP084 was collared ~250m south of La Verde’s +0.4% Cu mineralisation footprint and returned: 148m @ 0.44% CuEq¹ \(0.39% Cu, 0.07g/t Au\) from 36m depth Evidence · text > RC drill hole DKP084 was collared ~250m south of La Verde’s +0.4% Cu mineralisation footprint and returned: 148m @ 0.44% CuEq¹ \(0.39% Cu, 0.07g/t Au\) from 36m depth ### DKD100 [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-drill-facts-24) La Verde South · copper #### Identity - Hole ID: DKD100 - Project: La Verde South - Commodity: copper - Region: chile - Reported Region: chile - Ticker: HCH #### Geometry - Intercept: 307 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - QP Signed: Yes #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This new visual intercept confirms significant width of porphyry-style mineralization in a new discovery area, but the lack of assays and grade information limits its immediate materiality and confidence. - Positive factor: Confirms new porphyry center \(La Verde South\) - Positive factor: Significant intercept width - Negative factor: Visual estimate only, no assays reported - Negative factor: No grade information available - Negative factor: No QA/QC disclosure for this specific visual estimate Evidence · text > Diamond drill hole DKD100 was collared ~100 m south of DKP084 and visually recorded 307 m of porphyry-style copper mineralisation³. #### Tags used in scoring **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 #### Rejected tags **Apparent Width Only** — Rejected; excluded from scoring Polarity: negative Definition: Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness. Reason: The interval is given as a visual estimate of mineralisation without any grade or true width information. Evidence · text > visually recorded 307 m of porphyry-style copper mineralisation **No QA/QC Disclosure** — Rejected; excluded from scoring Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Reason: The visual estimate is not accompanied by any QA/QC details or assay results. Evidence · text > visually recorded 307 m of porphyry-style copper mineralisation **Step-Out Extension** — Rejected; excluded from scoring Polarity: positive Definition: Mineralization extended beyond the previously known limit. Reason: Diamond drill hole DKD100 was collared ~100 m south of DKP084, extending the footprint of the new discovery. Evidence · text > Diamond drill hole DKD100 was collared ~100 m south of DKP084 ## Resource Estimates (25) ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-25) Costa Fuego · copper Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: copper - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: resource - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Elizabeth Haren - Resource group id: resource:f8da721156afb1865b99 - Deposit or zone: Costa Fuego #### Resource Data - Category: indicated - Tonnes: 798000000 - Grade: 0.37 - Grade Unit: % - Contained Metal: 3000000 - Contained Unit: t - Cutoff Grade: 0.2 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Indicated resource for Costa Fuego shows a large tonnage with good copper grades, providing a strong foundation for project development, reported under high standards. - Positive factor: Large tonnage in Indicated category - Positive factor: Good copper grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Positive factor: Cut-off grade disclosed - Negative factor: Historical estimate, low novelty Evidence · table > 0.37 Context: 798 ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-26) Costa Fuego · gold Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: gold - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: resource - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Elizabeth Haren - Resource group id: resource:f8da721156afb1865b99 - Deposit or zone: Costa Fuego #### Resource Data - Category: indicated - Tonnes: 798000000 - Grade: 0.1 - Grade Unit: g/t - Contained Metal: 2600000 - Contained Unit: oz - Cutoff Grade: 0.2 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Indicated resource for Costa Fuego shows a large tonnage with good gold grades, contributing to the overall project value, reported under high standards. - Positive factor: Large tonnage in Indicated category - Positive factor: Good gold grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Positive factor: Cut-off grade disclosed - Negative factor: Historical estimate, low novelty Evidence · table > 0.10 Context: 798 ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-27) Costa Fuego · silver Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: silver - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: resource - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Elizabeth Haren - Resource group id: resource:f8da721156afb1865b99 - Deposit or zone: Costa Fuego #### Resource Data - Category: indicated - Tonnes: 798000000 - Grade: 0.5 - Grade Unit: g/t - Contained Metal: 13000000 - Contained Unit: oz - Cutoff Grade: 0.2 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Indicated resource for Costa Fuego shows a large tonnage with good silver grades, contributing to the overall project value, reported under high standards. - Positive factor: Large tonnage in Indicated category - Positive factor: Good silver grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Positive factor: Cut-off grade disclosed - Negative factor: Historical estimate, low novelty Evidence · table > 0.5 Context: 798 ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-28) Costa Fuego · molybdenum Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: molybdenum - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: resource - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Elizabeth Haren - Resource group id: resource:f8da721156afb1865b99 - Deposit or zone: Costa Fuego #### Resource Data - Category: indicated - Tonnes: 798000000 - Grade: 85 - Grade Unit: ppm - Contained Metal: 68000 - Contained Unit: t - Cutoff Grade: 0.2 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Indicated resource for Costa Fuego shows a large tonnage with good molybdenum grades, contributing to the overall project value, reported under high standards. - Positive factor: Large tonnage in Indicated category - Positive factor: Good molybdenum grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Positive factor: Cut-off grade disclosed - Negative factor: Historical estimate, low novelty Evidence · table > 85 Context: 798 ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-29) Costa Fuego · copper Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: copper - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: resource - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Elizabeth Haren - Resource group id: resource:f8da721156afb1865b99 - Deposit or zone: Costa Fuego #### Resource Data - Category: indicated - Tonnes: 798000000 - Contained Metal: 3600000 - Contained Unit: t - Cutoff Grade: 0.2 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Metal Eq. Grade: 0.45 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Indicated resource for Costa Fuego shows a large tonnage with a strong copper equivalent grade, providing a robust foundation for project development, reported under high standards. - Positive factor: Large tonnage in Indicated category - Positive factor: Strong copper equivalent grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Positive factor: Cut-off grade disclosed - Positive factor: Detailed metal equivalent assumptions disclosed - Negative factor: Historical estimate, low novelty Evidence · table > 0.45 Context: 798 ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-30) Costa Fuego · copper Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: copper - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: resource - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Elizabeth Haren - Resource group id: resource:969a7f51a89ada9baf39 - Deposit or zone: Costa Fuego #### Resource Data - Category: inferred - Tonnes: 203000000 - Grade: 0.25 - Grade Unit: % - Contained Metal: 500000 - Contained Unit: t - Cutoff Grade: 0.2 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Inferred resource for Costa Fuego shows significant tonnage with moderate copper grades, representing future exploration potential, reported under high standards. - Positive factor: Significant tonnage in Inferred category - Positive factor: Moderate copper grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Positive factor: Cut-off grade disclosed - Negative factor: Historical estimate, low novelty - Negative factor: Inferred category has lower confidence Evidence · table > 0.25 Context: 203 #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The resource is classified as Inferred, indicating lower geological confidence. Evidence · table > Inf Context: 203 ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-31) Costa Fuego · gold Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: gold - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: resource - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Elizabeth Haren - Resource group id: resource:969a7f51a89ada9baf39 - Deposit or zone: Costa Fuego #### Resource Data - Category: inferred - Tonnes: 203000000 - Grade: 0.06 - Grade Unit: g/t - Contained Metal: 400000 - Contained Unit: oz - Cutoff Grade: 0.2 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Inferred resource for Costa Fuego shows significant tonnage with moderate gold grades, representing future exploration potential, reported under high standards. - Positive factor: Significant tonnage in Inferred category - Positive factor: Moderate gold grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Positive factor: Cut-off grade disclosed - Negative factor: Historical estimate, low novelty - Negative factor: Inferred category has lower confidence Evidence · table > 0.06 Context: 203 #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The resource is classified as Inferred, indicating lower geological confidence. Evidence · table > Inf Context: 203 ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-32) Costa Fuego · silver Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: silver - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: resource - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Elizabeth Haren - Resource group id: resource:969a7f51a89ada9baf39 - Deposit or zone: Costa Fuego #### Resource Data - Category: inferred - Tonnes: 203000000 - Grade: 0.36 - Grade Unit: g/t - Contained Metal: 2000000 - Contained Unit: oz - Cutoff Grade: 0.2 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Inferred resource for Costa Fuego shows significant tonnage with moderate silver grades, representing future exploration potential, reported under high standards. - Positive factor: Significant tonnage in Inferred category - Positive factor: Moderate silver grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Positive factor: Cut-off grade disclosed - Negative factor: Historical estimate, low novelty - Negative factor: Inferred category has lower confidence Evidence · table > 0.36 Context: 203 #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The resource is classified as Inferred, indicating lower geological confidence. Evidence · table > Inf Context: 203 ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-33) Costa Fuego · molybdenum Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: molybdenum - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: resource - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Elizabeth Haren - Resource group id: resource:969a7f51a89ada9baf39 - Deposit or zone: Costa Fuego #### Resource Data - Category: inferred - Tonnes: 203000000 - Grade: 61 - Grade Unit: ppm - Contained Metal: 12000 - Contained Unit: t - Cutoff Grade: 0.2 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Inferred resource for Costa Fuego shows significant tonnage with moderate molybdenum grades, representing future exploration potential, reported under high standards. - Positive factor: Significant tonnage in Inferred category - Positive factor: Moderate molybdenum grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Positive factor: Cut-off grade disclosed - Negative factor: Historical estimate, low novelty - Negative factor: Inferred category has lower confidence Evidence · table > 61 Context: 203 #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The resource is classified as Inferred, indicating lower geological confidence. Evidence · table > Inf Context: 203 ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-34) Costa Fuego · copper Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: copper - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: resource - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Elizabeth Haren - Resource group id: resource:969a7f51a89ada9baf39 - Deposit or zone: Costa Fuego #### Resource Data - Category: inferred - Tonnes: 203000000 - Contained Metal: 600000 - Contained Unit: t - Cutoff Grade: 0.2 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Metal Eq. Grade: 0.3 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Inferred resource for Costa Fuego shows significant tonnage with a moderate copper equivalent grade, representing future exploration potential, reported under high standards. - Positive factor: Significant tonnage in Inferred category - Positive factor: Moderate copper equivalent grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Positive factor: Cut-off grade disclosed - Positive factor: Detailed metal equivalent assumptions disclosed - Negative factor: Historical estimate, low novelty - Negative factor: Inferred category has lower confidence Evidence · table > 0.30 Context: 203 #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The resource is classified as Inferred, indicating lower geological confidence. Evidence · table > Inf Context: 203 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-35) Costa Fuego · copper Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: copper - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: reserve - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Anton von Wielligh - Resource group id: resource:4de7e96bb1178c22259b - Deposit or zone: Costa Fuego OP Reserve #### Resource Data - Category: probable - Tonnes: 356000000 - Grade: 0.34 - Grade Unit: % - Contained Metal: 1213000 - Contained Unit: t #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Probable Open Pit Reserve for Costa Fuego shows a large tonnage with good copper grades, indicating a robust and economically viable project, reported under high standards. - Positive factor: Large tonnage in Probable Reserve category - Positive factor: Good copper grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Negative factor: Historical estimate, low novelty Evidence · table > 0.34 Context: 356 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The reserve is classified as Probable, indicating a high level of confidence in economic viability. Evidence · table > Probable Context: 356 **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 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-36) Costa Fuego · gold Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: gold - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: reserve - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Anton von Wielligh - Resource group id: resource:4de7e96bb1178c22259b - Deposit or zone: Costa Fuego OP Reserve #### Resource Data - Category: probable - Tonnes: 356000000 - Grade: 0.07 - Grade Unit: g/t - Contained Metal: 844000 - Contained Unit: koz #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Probable Open Pit Reserve for Costa Fuego shows a large tonnage with good gold grades, contributing to the overall project value, reported under high standards. - Positive factor: Large tonnage in Probable Reserve category - Positive factor: Good gold grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Negative factor: Historical estimate, low novelty Evidence · table > 0.07 Context: 356 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The reserve is classified as Probable, indicating a high level of confidence in economic viability. Evidence · table > Probable Context: 356 **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 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-37) Costa Fuego · silver Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: silver - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: reserve - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Anton von Wielligh - Resource group id: resource:4de7e96bb1178c22259b - Deposit or zone: Costa Fuego OP Reserve #### Resource Data - Category: probable - Tonnes: 356000000 - Grade: 0.37 - Grade Unit: g/t - Contained Metal: 4248000 - Contained Unit: koz #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Probable Open Pit Reserve for Costa Fuego shows a large tonnage with good silver grades, contributing to the overall project value, reported under high standards. - Positive factor: Large tonnage in Probable Reserve category - Positive factor: Good silver grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Negative factor: Historical estimate, low novelty Evidence · table > 0.37 Context: 356 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The reserve is classified as Probable, indicating a high level of confidence in economic viability. Evidence · table > Probable Context: 356 **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 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-38) Costa Fuego · molybdenum Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: molybdenum - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: reserve - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Anton von Wielligh - Resource group id: resource:4de7e96bb1178c22259b - Deposit or zone: Costa Fuego OP Reserve #### Resource Data - Category: probable - Tonnes: 356000000 - Grade: 98 - Grade Unit: ppm - Contained Metal: 35000 - Contained Unit: kt #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Probable Open Pit Reserve for Costa Fuego shows a large tonnage with good molybdenum grades, contributing to the overall project value, reported under high standards. - Positive factor: Large tonnage in Probable Reserve category - Positive factor: Good molybdenum grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Negative factor: Historical estimate, low novelty Evidence · table > 98 Context: 356 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The reserve is classified as Probable, indicating a high level of confidence in economic viability. Evidence · table > Probable Context: 356 **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 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-39) Costa Fuego · copper Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: copper - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: reserve - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Anton von Wielligh - Resource group id: resource:4de7e96bb1178c22259b - Deposit or zone: Costa Fuego OP Reserve #### Resource Data - Category: probable - Tonnes: 356000000 - Contained Metal: 1482000 - Contained Unit: kt #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Metal Eq. Grade: 0.42 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Probable Open Pit Reserve for Costa Fuego shows a large tonnage with a good copper equivalent grade, indicating a robust and economically viable project, reported under high standards. - Positive factor: Large tonnage in Probable Reserve category - Positive factor: Good copper equivalent grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Positive factor: Detailed metal equivalent assumptions disclosed - Negative factor: Historical estimate, low novelty Evidence · table > 0.42 Context: 356 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The reserve is classified as Probable, indicating a high level of confidence in economic viability. Evidence · table > Probable Context: 356 **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 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-40) Costa Fuego · copper Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: copper - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: reserve - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Anton von Wielligh - Resource group id: resource:b8aa1641177eac4c68fc - Deposit or zone: Costa Fuego UG Reserve #### Resource Data - Category: probable - Tonnes: 146000000 - Grade: 0.44 - Grade Unit: % - Contained Metal: 645000 - Contained Unit: kt #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Probable Underground Reserve for Costa Fuego shows significant tonnage with strong copper grades, indicating a robust and economically viable project, reported under high standards. - Positive factor: Significant tonnage in Probable Reserve category - Positive factor: Strong copper grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Negative factor: Historical estimate, low novelty Evidence · table > 0.44 Context: 146 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The reserve is classified as Probable, indicating a high level of confidence in economic viability. Evidence · table > Probable Context: 146 **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 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-41) Costa Fuego · gold Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: gold - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: reserve - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Anton von Wielligh - Resource group id: resource:b8aa1641177eac4c68fc - Deposit or zone: Costa Fuego UG Reserve #### Resource Data - Category: probable - Tonnes: 146000000 - Grade: 0.16 - Grade Unit: g/t - Contained Metal: 734000 - Contained Unit: koz #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Probable Underground Reserve for Costa Fuego shows significant tonnage with good gold grades, contributing to the overall project value, reported under high standards. - Positive factor: Significant tonnage in Probable Reserve category - Positive factor: Good gold grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Negative factor: Historical estimate, low novelty Evidence · table > 0.16 Context: 146 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The reserve is classified as Probable, indicating a high level of confidence in economic viability. Evidence · table > Probable Context: 146 **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 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-42) Costa Fuego · silver Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: silver - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: reserve - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Anton von Wielligh - Resource group id: resource:b8aa1641177eac4c68fc - Deposit or zone: Costa Fuego UG Reserve #### Resource Data - Category: probable - Tonnes: 146000000 - Grade: 0.79 - Grade Unit: g/t - Contained Metal: 3704000 - Contained Unit: koz #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Probable Underground Reserve for Costa Fuego shows significant tonnage with good silver grades, contributing to the overall project value, reported under high standards. - Positive factor: Significant tonnage in Probable Reserve category - Positive factor: Good silver grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Negative factor: Historical estimate, low novelty Evidence · table > 0.79 Context: 146 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The reserve is classified as Probable, indicating a high level of confidence in economic viability. Evidence · table > Probable Context: 146 **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 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-43) Costa Fuego · molybdenum Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: molybdenum - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: reserve - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Anton von Wielligh - Resource group id: resource:b8aa1641177eac4c68fc - Deposit or zone: Costa Fuego UG Reserve #### Resource Data - Category: probable - Tonnes: 146000000 - Grade: 93 - Grade Unit: ppm - Contained Metal: 14000 - Contained Unit: kt #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Probable Underground Reserve for Costa Fuego shows significant tonnage with good molybdenum grades, contributing to the overall project value, reported under high standards. - Positive factor: Significant tonnage in Probable Reserve category - Positive factor: Good molybdenum grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Negative factor: Historical estimate, low novelty Evidence · table > 93 Context: 146 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The reserve is classified as Probable, indicating a high level of confidence in economic viability. Evidence · table > Probable Context: 146 **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 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-44) Costa Fuego · copper Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: copper - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: reserve - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Anton von Wielligh - Resource group id: resource:b8aa1641177eac4c68fc - Deposit or zone: Costa Fuego UG Reserve #### Resource Data - Category: probable - Tonnes: 146000000 - Contained Metal: 820000 - Contained Unit: kt #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Metal Eq. Grade: 0.56 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Probable Underground Reserve for Costa Fuego shows significant tonnage with a strong copper equivalent grade, indicating a robust and economically viable project, reported under high standards. - Positive factor: Significant tonnage in Probable Reserve category - Positive factor: Strong copper equivalent grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Positive factor: Detailed metal equivalent assumptions disclosed - Negative factor: Historical estimate, low novelty Evidence · table > 0.56 Context: 146 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The reserve is classified as Probable, indicating a high level of confidence in economic viability. Evidence · table > Probable Context: 146 **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 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-45) Costa Fuego · copper Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: copper - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: reserve - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Anton von Wielligh - Resource group id: resource:be3699b648398b15f112 - Deposit or zone: Total Costa Fuego Reserve #### Resource Data - Category: probable - Tonnes: 502000000 - Grade: 0.37 - Grade Unit: % - Contained Metal: 1858000 - Contained Unit: t #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Total Probable Reserve for Costa Fuego shows a very large tonnage with good copper grades, indicating a robust and economically viable project, reported under high standards. - Positive factor: Very large tonnage in Probable Reserve category - Positive factor: Good copper grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Negative factor: Historical estimate, low novelty Evidence · table > 0.37 Context: 502 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The reserve is classified as Probable, indicating a high level of confidence in economic viability. Evidence · table > Probable Context: 502 **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 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-46) Costa Fuego · gold Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: gold - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: reserve - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Anton von Wielligh - Resource group id: resource:be3699b648398b15f112 - Deposit or zone: Total Costa Fuego Reserve #### Resource Data - Category: probable - Tonnes: 502000000 - Grade: 0.1 - Grade Unit: g/t - Contained Metal: 1578000 - Contained Unit: koz #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Total Probable Reserve for Costa Fuego shows a very large tonnage with good gold grades, contributing to the overall project value, reported under high standards. - Positive factor: Very large tonnage in Probable Reserve category - Positive factor: Good gold grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Negative factor: Historical estimate, low novelty Evidence · table > 0.10 Context: 502 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The reserve is classified as Probable, indicating a high level of confidence in economic viability. Evidence · table > Probable Context: 502 **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 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-47) Costa Fuego · silver Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: silver - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: reserve - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Anton von Wielligh - Resource group id: resource:be3699b648398b15f112 - Deposit or zone: Total Costa Fuego Reserve #### Resource Data - Category: probable - Tonnes: 502000000 - Grade: 0.49 - Grade Unit: g/t - Contained Metal: 7951000 - Contained Unit: koz #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Total Probable Reserve for Costa Fuego shows a very large tonnage with good silver grades, contributing to the overall project value, reported under high standards. - Positive factor: Very large tonnage in Probable Reserve category - Positive factor: Good silver grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Negative factor: Historical estimate, low novelty Evidence · table > 0.49 Context: 502 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The reserve is classified as Probable, indicating a high level of confidence in economic viability. Evidence · table > Probable Context: 502 **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 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-48) Costa Fuego · molybdenum Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: molybdenum - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: reserve - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Anton von Wielligh - Resource group id: resource:be3699b648398b15f112 - Deposit or zone: Total Costa Fuego Reserve #### Resource Data - Category: probable - Tonnes: 502000000 - Grade: 97 - Grade Unit: ppm - Contained Metal: 49000 - Contained Unit: kt #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Total Probable Reserve for Costa Fuego shows a very large tonnage with good molybdenum grades, contributing to the overall project value, reported under high standards. - Positive factor: Very large tonnage in Probable Reserve category - Positive factor: Good molybdenum grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Negative factor: Historical estimate, low novelty Evidence · table > 97 Context: 502 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The reserve is classified as Probable, indicating a high level of confidence in economic viability. Evidence · table > Probable Context: 502 **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 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-resource-facts-49) Costa Fuego · copper Historical result Needs review: historical\_restatement #### Identity - Project: Costa Fuego - Commodity: copper - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Resource scope - Estimate type: reserve - Reporting standards: jorc, ni\_43\_101 - QP Signed: Yes - Qualified person names: Anton von Wielligh - Resource group id: resource:be3699b648398b15f112 - Deposit or zone: Total Costa Fuego Reserve #### Resource Data - Category: probable - Tonnes: 502000000 - Contained Metal: 2317000 - Contained Unit: kt #### Prior Estimate - Resource Date: 2025-03-27 #### Metal Equivalent - Metal Eq. Grade: 0.46 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-03-27T00:00:00.000Z #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: This historical Total Probable Reserve for Costa Fuego shows a very large tonnage with a good copper equivalent grade, indicating a robust and economically viable project, reported under high standards. - Positive factor: Very large tonnage in Probable Reserve category - Positive factor: Good copper equivalent grade for porphyry deposit - Positive factor: QP/CP signed off - Positive factor: JORC and NI 43-101 compliant - Positive factor: Detailed metal equivalent assumptions disclosed - Negative factor: Historical estimate, low novelty Evidence · table > 0.46 Context: 502 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The reserve is classified as Probable, indicating a high level of confidence in economic viability. Evidence · table > Probable Context: 502 **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 ## Metallurgical Results (24) ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-50) Costa Fuego · copper #### Identity - Project: Costa Fuego - Commodity: copper - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Recovery: 86 % - Recovery Basis: to\_concentrate #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork shows high copper recovery to concentrate, indicating a robust processing route for the Costa Fuego project, supported by detailed locked-cycle tests. - Positive factor: High copper recovery for sulphide concentrator - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · text > Average Recovery to Concentrate \(%\) ... Cu ... 86 ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-51) Costa Fuego · gold #### Identity - Project: Costa Fuego - Commodity: gold - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Recovery: 54 % - Recovery Basis: to\_concentrate #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork shows moderate gold recovery to concentrate, contributing to the overall project economics, supported by detailed locked-cycle tests. - Positive factor: Moderate gold recovery for sulphide concentrator - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · text > Average Recovery to Concentrate \(%\) ... Au ... 54 #### Tags used in scoring **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 54% is below the weak band \(80%\) ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-52) Costa Fuego · molybdenum #### Identity - Project: Costa Fuego - Commodity: molybdenum - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Recovery: 70 % - Recovery Basis: to\_concentrate #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork shows moderate molybdenum recovery to concentrate, contributing to the overall project economics, supported by detailed locked-cycle tests. - Positive factor: Moderate molybdenum recovery for sulphide concentrator - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · text > Average Recovery to Concentrate \(%\) ... Mo ... 70 ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-53) Costa Fuego · silver #### Identity - Project: Costa Fuego - Commodity: silver - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Recovery: 37 % - Recovery Basis: to\_concentrate #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork shows low silver recovery to concentrate, which could impact overall project economics, despite being supported by detailed locked-cycle tests. - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Low silver recovery for sulphide concentrator - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · text > Average Recovery to Concentrate \(%\) ... Ag ... 37 ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-54) Costa Fuego · copper #### Identity - Project: Costa Fuego - Commodity: copper - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 26 - Conc. Grade Unit: % #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a high-grade copper concentrate, which is positive for marketability, supported by detailed locked-cycle tests. - Positive factor: High copper concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 26 Context: Cu % ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-55) Costa Fuego · gold #### Identity - Project: Costa Fuego - Commodity: gold - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 5 - Conc. Grade Unit: ppm #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a good gold concentrate grade, contributing to the overall project value, supported by detailed locked-cycle tests. - Positive factor: Good gold concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 5 Context: Au ppm ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-56) Costa Fuego · molybdenum #### Identity - Project: Costa Fuego - Commodity: molybdenum - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 7411 - Conc. Grade Unit: ppm #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a good molybdenum concentrate grade, contributing to the overall project value, supported by detailed locked-cycle tests. - Positive factor: Good molybdenum concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 7,411 Context: Mo ppm ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-57) Costa Fuego · silver #### Identity - Project: Costa Fuego - Commodity: silver - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 24 - Conc. Grade Unit: ppm #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a good silver concentrate grade, contributing to the overall project value, supported by detailed locked-cycle tests. - Positive factor: Good silver concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 24 Context: Ag ppm ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-58) Costa Fuego · arsenic #### Identity - Project: Costa Fuego - Commodity: arsenic - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 44 - Conc. Grade Unit: ppm #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The presence of arsenic at 44 ppm in the concentrate is a potential penalty element, which could negatively impact marketability, despite otherwise positive metallurgical results. - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 44 Context: As ppm ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-59) Costa Fuego · cobalt #### Identity - Project: Costa Fuego - Commodity: cobalt - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 263 - Conc. Grade Unit: ppm #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a good cobalt concentrate grade, contributing to the overall project value, supported by detailed locked-cycle tests. - Positive factor: Good cobalt concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 263 Context: Co ppm ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-60) Costa Fuego · chlorine #### Identity - Project: Costa Fuego - Commodity: chlorine - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 238 - Conc. Grade Unit: ppm #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a good chloride concentrate grade, contributing to the overall project value, supported by detailed locked-cycle tests. - Positive factor: Good chloride concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 238 Context: Cl ppm ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-61) Costa Fuego · alumina #### Identity - Project: Costa Fuego - Commodity: alumina - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 2 - Conc. Grade Unit: % #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a good alumina concentrate grade, contributing to the overall project value, supported by detailed locked-cycle tests. - Positive factor: Good alumina concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 2 Context: Al2O3 % ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-62) Costa Fuego · barium #### Identity - Project: Costa Fuego - Commodity: barium - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 55 - Conc. Grade Unit: ppm #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a good barium concentrate grade, contributing to the overall project value, supported by detailed locked-cycle tests. - Positive factor: Good barium concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 55 Context: Ba ppm ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-63) Costa Fuego · bismuth #### Identity - Project: Costa Fuego - Commodity: bismuth - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 24 - Conc. Grade Unit: ppm #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a good bismuth concentrate grade, contributing to the overall project value, supported by detailed locked-cycle tests. - Positive factor: Good bismuth concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 24 Context: Bi ppm ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-64) Costa Fuego · calcium\_oxide #### Identity - Project: Costa Fuego - Commodity: calcium\_oxide - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 1 - Conc. Grade Unit: % #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a good calcium oxide concentrate grade, contributing to the overall project value, supported by detailed locked-cycle tests. - Positive factor: Good calcium oxide concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 1 Context: CaO % ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-65) Costa Fuego · cadmium #### Identity - Project: Costa Fuego - Commodity: cadmium - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 7 - Conc. Grade Unit: ppm #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a good cadmium concentrate grade, contributing to the overall project value, supported by detailed locked-cycle tests. - Positive factor: Good cadmium concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 7 Context: Cd ppm ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-66) Costa Fuego · iron\_ore #### Identity - Project: Costa Fuego - Commodity: iron\_ore - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 28 - Conc. Grade Unit: % #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a good iron concentrate grade, contributing to the overall project value, supported by detailed locked-cycle tests. - Positive factor: Good iron concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 28 Context: Fe % ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-67) Costa Fuego · mercury #### Identity - Project: Costa Fuego - Commodity: mercury - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 1 - Conc. Grade Unit: ppm #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a low mercury concentrate grade, which is positive for marketability, supported by detailed locked-cycle tests. - Positive factor: Low mercury concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 1 Context: Hg ppm ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-68) Costa Fuego · potassium #### Identity - Project: Costa Fuego - Commodity: potassium - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 3842 - Conc. Grade Unit: ppm #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a good potassium concentrate grade, contributing to the overall project value, supported by detailed locked-cycle tests. - Positive factor: Good potassium concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 3,842 Context: K ppm ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-69) Costa Fuego · magnesium\_oxide #### Identity - Project: Costa Fuego - Commodity: magnesium\_oxide - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 3527 - Conc. Grade Unit: ppm #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a good magnesium oxide concentrate grade, contributing to the overall project value, supported by detailed locked-cycle tests. - Positive factor: Good magnesium oxide concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 3,527 Context: MgO ppm ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-70) Costa Fuego · manganese #### Identity - Project: Costa Fuego - Commodity: manganese - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 98 - Conc. Grade Unit: ppm #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a good manganese concentrate grade, contributing to the overall project value, supported by detailed locked-cycle tests. - Positive factor: Good manganese concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 98 Context: Mn ppm ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-71) Costa Fuego · sodium #### Identity - Project: Costa Fuego - Commodity: sodium - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 2392 - Conc. Grade Unit: ppm #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a good sodium concentrate grade, contributing to the overall project value, supported by detailed locked-cycle tests. - Positive factor: Good sodium concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 2,392 Context: Na ppm ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-72) Costa Fuego · nickel #### Identity - Project: Costa Fuego - Commodity: nickel - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 82 - Conc. Grade Unit: ppm #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a good nickel concentrate grade, contributing to the overall project value, supported by detailed locked-cycle tests. - Positive factor: Good nickel concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 82 Context: Ni ppm ### locked-cycle [Link to this fact](https://atlas-staging.minestarters.com/news/hch-corporate-presentation-london-metals-exchange-week--a522636d-c301-4f50-be05-e326d39adf58#fact-metallurgical-facts-73) Costa Fuego · phosphorus #### Identity - Project: Costa Fuego - Commodity: phosphorus - Region: chile - Reported Region: Huasco Valley, Chile - Ticker: HCH #### Test Work - Program Status: detailed - Test Type: locked-cycle - Processing Route: Sulphide Concentrator #### Recovery - Conc. Grade: 154 - Conc. Grade Unit: ppm #### Lab - Laboratory: Wood Pty Ltd - Consultant: Wood Pty Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-10-19T00:00:00.000Z Reasoning: The metallurgical testwork produced a good phosphorus concentrate grade, contributing to the overall project value, supported by detailed locked-cycle tests. - Positive factor: Good phosphorus concentrate grade - Positive factor: Detailed test program status \(locked-cycle tests\) - Positive factor: Clean concentrate produced - Positive factor: Extensive geometallurgical testwork - Negative factor: Arsenic present in concentrate \(44 ppm\) Evidence · table > 154 Context: P ppm #### Tags used in scoring **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: processing\_route matches the mill\_cil signal ## 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.