# Erdene Announces Updated Resource for the Zuun Mod Molybdenum-Copper Deposit Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/erdene-announces-updated-resource-for-the-zuun-mod-molybdenum-copper-deposit--dda38be9-2b1c-497a-baaf-4e06f159c68b Original source: https://money.tmx.com/en/quote/ERD/news/8330084224809579/erdene-announces-updated-resource-for-the-zuun-mod-molybdenum-copper-deposit Publisher: tmx Original announcement: 2025-10-02T11:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Erdene Resource Development Corp. - Ticker: ERD - Exchange: TSX - Region: southwestern Mongolia - Primary commodity: Molybdenum - Secondary commodities: Copper, Silver - Document categories: Resource update - Extracted: 2026-09-13 22:52:56 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Erdene has announced an updated mineral resource estimate for the Zuun Mod molybdenum-copper porphyry project in Mongolia. The update demonstrates significant growth, including a 22% increase in Measured and Indicated molybdenum resources and a 95% increase in Inferred molybdenum resources compared to previous estimates. Reasoning: The update shows significant tonnage and metal growth across molybdenum and copper, driven by improved structural understanding and additional drilling. - Positive factor: Significant increase in M&I molybdenum resources \(22%\) - Positive factor: Massive increase in Inferred molybdenum resources \(95%\) - Positive factor: Substantial increase in copper resources across all categories - Positive factor: Expansion potential identified via re-logging and oriented core - Positive factor: Proximity to major molybdenum consumer \(China\) - Negative factor: Resources have not been subject to detailed economic analysis Facts used in scoring: 8 ## Classification and evidence **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: The resource estimate was prepared in accordance with NI 43-101 Standards of Disclosure for Mineral Projects. Evidence · text > in accordance with the Canadian Institute of Mining, Metallurgy and Petroleum \("CIM"\) guidelines and National Instrument 43-101 Standards of Disclosure for Mineral Projects \("NI 43-101"\). **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: Oyunbat Bat-Ochir, a Member of the Australian Institute of Geoscientists, is named as the Qualified Person. Evidence · text > The MRE was completed by Mr. Oyunbat Bat-Ochir, a full-time employee of SLR, a Member of the Australian Institute of Geoscientists, and a Qualified Person \("QP"\) as defined by NI 43-101. **Tonnage Growth** Polarity: positive Definition: Tonnage increase reaching the strong tier vs prior estimate, with grade maintained or improved. Why it applies: The update shows a significant increase in resources compared to the previous estimate. Evidence · text > The 2025 Zuun Mod MRE shows an increase of approximately 50% in reported resources compared to the 2011 Zuun Mod MRE **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: The molybdenum cut-off grade is explicitly stated as 0.035% Mo. Evidence · text > reported above a Mo cut-off grade of 0.035% Mo ## Extracted facts Stored fact records: 8. Some facts used in scoring do not have a stored record. ## Resource Estimates (8) ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/erdene-announces-updated-resource-for-the-zuun-mod-molybdenum-copper-deposit--dda38be9-2b1c-497a-baaf-4e06f159c68b#fact-resource-facts-0) Zuun Mod · molybdenum #### Identity - Project: Zuun Mod - Commodity: molybdenum - Region: mongolia - Reported Region: southwestern Mongolia - Ticker: ERD #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Oyunbat Bat-Ochir - Resource group id: resource:5e9505d264a071355bdd - Deposit or zone: Zuun Mod - Ownership percent: 100 % - Resource basis: gross #### Resource Data - Category: measured - Tonnes: 45800000 - Grade: 0.057 - Grade Unit: % - Contained Metal: 57.7 - Contained Unit: mlbs - Cutoff Grade: 0.035 - Cutoff Unit: % #### Prior Estimate - Resource Date: 2025-09-01 #### Metal Equivalent - Metal Eq. Grade: 0.074 - Metal Eq. Unit: % MoEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-02T00:00:00.000Z Reasoning: Measured molybdenum intercept at 0.057%. Evidence · table > 0.057 Context: 45.8 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/erdene-announces-updated-resource-for-the-zuun-mod-molybdenum-copper-deposit--dda38be9-2b1c-497a-baaf-4e06f159c68b#fact-resource-facts-1) Zuun Mod · copper #### Identity - Project: Zuun Mod - Commodity: copper - Region: mongolia - Reported Region: southwestern Mongolia - Ticker: ERD #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Oyunbat Bat-Ochir - Resource group id: resource:5e9505d264a071355bdd - Deposit or zone: Zuun Mod - Ownership percent: 100 % - Resource basis: gross #### Resource Data - Category: measured - Tonnes: 45800000 - Grade: 0.062 - Grade Unit: % - Contained Metal: 62.2 - Contained Unit: mlbs - Cutoff Grade: 0.035 - Cutoff Unit: % #### Prior Estimate - Resource Date: 2025-09-01 #### Metal Equivalent - Metal Eq. Grade: 0.074 - Metal Eq. Unit: % MoEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-02T00:00:00.000Z Reasoning: Measured copper intercept at 0.062%. Evidence · table > 0.062 Context: 45.8 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/erdene-announces-updated-resource-for-the-zuun-mod-molybdenum-copper-deposit--dda38be9-2b1c-497a-baaf-4e06f159c68b#fact-resource-facts-2) Zuun Mod · molybdenum #### Identity - Project: Zuun Mod - Commodity: molybdenum - Region: mongolia - Reported Region: southwestern Mongolia - Ticker: ERD #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Oyunbat Bat-Ochir - Resource group id: resource:5d9936d56a9d759d17d0 - Deposit or zone: Zuun Mod - Ownership percent: 100 % - Resource basis: gross #### Resource Data - Category: indicated - Tonnes: 225300000 - Grade: 0.056 - Grade Unit: % - Contained Metal: 275.9 - Contained Unit: mlbs - Cutoff Grade: 0.035 - Cutoff Unit: % #### Prior Estimate - Resource Date: 2025-09-01 #### Metal Equivalent - Metal Eq. Grade: 0.073 - Metal Eq. Unit: % MoEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-02T00:00:00.000Z Reasoning: Indicated molybdenum intercept at 0.056%. Evidence · table > 0.056 Context: 225.3 #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/erdene-announces-updated-resource-for-the-zuun-mod-molybdenum-copper-deposit--dda38be9-2b1c-497a-baaf-4e06f159c68b#fact-resource-facts-3) Zuun Mod · copper #### Identity - Project: Zuun Mod - Commodity: copper - Region: mongolia - Reported Region: southwestern Mongolia - Ticker: ERD #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Oyunbat Bat-Ochir - Resource group id: resource:5d9936d56a9d759d17d0 - Deposit or zone: Zuun Mod - Ownership percent: 100 % - Resource basis: gross #### Resource Data - Category: indicated - Tonnes: 225300000 - Grade: 0.065 - Grade Unit: % - Contained Metal: 322 - Contained Unit: mlbs - Cutoff Grade: 0.035 - Cutoff Unit: % #### Prior Estimate - Resource Date: 2025-09-01 #### Metal Equivalent - Metal Eq. Grade: 0.073 - Metal Eq. Unit: % MoEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-02T00:00:00.000Z Reasoning: Indicated copper intercept at 0.065%. Evidence · table > 0.065 Context: 225.3 #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/erdene-announces-updated-resource-for-the-zuun-mod-molybdenum-copper-deposit--dda38be9-2b1c-497a-baaf-4e06f159c68b#fact-resource-facts-4) Zuun Mod · molybdenum #### Identity - Project: Zuun Mod - Commodity: molybdenum - Region: mongolia - Reported Region: southwestern Mongolia - Ticker: ERD #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Oyunbat Bat-Ochir - Resource group id: resource:f046625a5e775d89083c - Deposit or zone: Zuun Mod - Ownership percent: 100 % - Resource basis: gross #### Resource Data - Category: inferred - Tonnes: 269100000 - Grade: 0.051 - Grade Unit: % - Contained Metal: 300 - Contained Unit: mlbs - Cutoff Grade: 0.035 - Cutoff Unit: % #### Prior Estimate - Resource Date: 2025-09-01 #### Metal Equivalent - Metal Eq. Grade: 0.07 - Metal Eq. Unit: % MoEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-02T00:00:00.000Z Reasoning: Inferred molybdenum intercept at 0.051%. - Negative factor: Inferred category implies lower geological confidence Evidence · table > 0.051 Context: 269.1 #### 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: category is "inferred" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/erdene-announces-updated-resource-for-the-zuun-mod-molybdenum-copper-deposit--dda38be9-2b1c-497a-baaf-4e06f159c68b#fact-resource-facts-5) Zuun Mod · copper #### Identity - Project: Zuun Mod - Commodity: copper - Region: mongolia - Reported Region: southwestern Mongolia - Ticker: ERD #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Oyunbat Bat-Ochir - Resource group id: resource:f046625a5e775d89083c - Deposit or zone: Zuun Mod - Ownership percent: 100 % - Resource basis: gross #### Resource Data - Category: inferred - Tonnes: 269100000 - Grade: 0.059 - Grade Unit: % - Contained Metal: 350.7 - Contained Unit: mlbs - Cutoff Grade: 0.035 - Cutoff Unit: % #### Prior Estimate - Resource Date: 2025-09-01 #### Metal Equivalent - Metal Eq. Grade: 0.07 - Metal Eq. Unit: % MoEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-02T00:00:00.000Z Reasoning: Inferred copper intercept at 0.059%. - Negative factor: Inferred category implies lower geological confidence Evidence · table > 0.059 Context: 269.1 #### 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: category is "inferred" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/erdene-announces-updated-resource-for-the-zuun-mod-molybdenum-copper-deposit--dda38be9-2b1c-497a-baaf-4e06f159c68b#fact-resource-facts-6) Zuun Mod · molybdenum #### Identity - Project: Zuun Mod - Commodity: molybdenum - Region: mongolia - Reported Region: southwestern Mongolia - Ticker: ERD #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Oyunbat Bat-Ochir - Resource group id: resource:2241430ceaafcb77d814 - Deposit or zone: Zuun Mod - Ownership percent: 100 % - Resource basis: gross #### Resource Data - Category: indicated - Tonnes: 271100000 - Grade: 0.056 - Grade Unit: % - Cutoff Grade: 0.035 - Cutoff Unit: % #### Prior Estimate - Resource Date: 2025-09-01 #### Metal Equivalent - Metal Eq. Grade: 0.073 - Metal Eq. Unit: % MoEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-02T00:00:00.000Z Reasoning: Indicated molybdenum intercept at 0.056%. \(Expanded from multi-commodity resource table for completeness.\) Evidence · table > 0.056 Context: 271.1 #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/erdene-announces-updated-resource-for-the-zuun-mod-molybdenum-copper-deposit--dda38be9-2b1c-497a-baaf-4e06f159c68b#fact-resource-facts-7) Zuun Mod · copper #### Identity - Project: Zuun Mod - Commodity: copper - Region: mongolia - Reported Region: southwestern Mongolia - Ticker: ERD #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Oyunbat Bat-Ochir - Resource group id: resource:2241430ceaafcb77d814 - Deposit or zone: Zuun Mod - Ownership percent: 100 % - Resource basis: gross #### Resource Data - Category: indicated - Tonnes: 271100000 - Grade: 0.064 - Grade Unit: % - Cutoff Grade: 0.035 - Cutoff Unit: % #### Prior Estimate - Resource Date: 2025-09-01 #### Metal Equivalent - Metal Eq. Grade: 0.073 - Metal Eq. Unit: % MoEq - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-02T00:00:00.000Z Reasoning: Indicated molybdenum intercept at 0.056%. \(Expanded from multi-commodity resource table for completeness.\) Evidence · table > 0.064 Context: 271.1 #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate ## 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.