# Tier One Silver Signs Letter of Intent to Option 70% of Compa&\#xF1;&\#xED;a Minera Ruta De Cobre, S.A., Holder of Copper-Molybdenum Project, Ecuador Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/tier-one-silver-signs-letter-of-intent-to-option-70-of-compa-xf1-xed-a-minera-ru--d84981bb-7a95-45b1-b9ca-201193510c88 Original source: https://money.tmx.com/en/quote/TSLV/news/5517337951378991/tier-one-silver-signs-letter-of-intent-to-option-70-of-compa-xf1-xed-a-minera-ru Publisher: tmx Original announcement: 2026-06-30T13:20:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Tier One Silver Inc. - Ticker: TSLV - Exchange: TSX - Region: Ecuador - Primary commodity: Copper - Secondary commodities: Molybdenum - Document categories: Resource update, Agreement transaction - Extracted: 2026-09-17 02:38:27 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary Tier One Silver has signed a Letter of Intent to acquire a 70% controlling interest in the RDC copper-molybdenum porphyry project in Ecuador for a total purchase price of US$39.4 million. The transaction includes a requirement for Tier One to fund US$64.4 million in exploration expenditures over six years. The project currently relies on a 2021 historical resource estimate that requires updating to NI 43-101 standards. Reasoning: The LOI for a 70% interest in a large porphyry project is highly material, though the historical nature of the resource and existing regulatory/community hurdles introduce significant risk. - Positive factor: Controlling 70% interest in a large copper-molybdenum porphyry project - Positive factor: Significant historical drilling \(135,162m\) provides geological foundation - Positive factor: Clear path to acquisition via LOI with defined payment schedule - Positive factor: Project described as Ecuador's largest greenfield copper project - Negative factor: Project currently paused due to community and regulatory challenges - Negative factor: Resource is historical and non-compliant with current NI 43-101 standards - Negative factor: Acquisition is conditional on significant exploration spend \($64.4M\) - Negative factor: Requires approximately $20M in new financing Facts used in scoring: 10 ## Classification and evidence **Nearology Play** Polarity: neutral Story-specific tag Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: Project is located within the southern Andean metallogenic belt, near major deposits like Mirador and San Carlos-Panantza. Evidence · text > It is located within the southern Andean metallogenic belt, a copper-gold province that also hosts other major deposits such as Mirador, San Carlos-Panantza, and Loma Larga. **Historical Estimate Only** Polarity: negative Definition: Estimate pre-dates or does not comply with current JORC/NI 43-101 standards — requires verification drilling. Why it applies: The resource estimate provided is from 2021 and is explicitly labeled as a historical estimate not compliant with current standards. Evidence · text > The 2021 mineral resource estimate constitutes a "historical estimate" in accordance with Article 2.4 of NI 43-101. **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The historical resource estimate is classified as inferred in nature. Evidence · text > The above resource estimates are inferred in nature ## Extracted facts Stored fact records: 10. Some facts used in scoring do not have a stored record. ## Resource Estimates (10) ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/tier-one-silver-signs-letter-of-intent-to-option-70-of-compa-xf1-xed-a-minera-ru--d84981bb-7a95-45b1-b9ca-201193510c88#fact-resource-facts-0) RDC Project · copper Historical result Needs review: historical\_restatement #### Identity - Project: RDC Project - Commodity: copper - Region: ecuador - Reported Region: Ecuador - Ticker: TSLV #### Resource scope - Estimate type: resource - Effective date: 2021-01-01T00:00:00.000Z - Reporting standards: jorc, other - QP Signed: No - Resource group id: resource:6fa1e824f8c45ebf2c0a - Deposit or zone: RDC Project - Mining method: open\_pit - Material type: unknown #### Resource Data - Category: inferred - Tonnes: 778000000 - Grade: 0.32 - Grade Unit: % #### Prior Estimate - Resource Date: 2021-01-01 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2021-01-01T00:00:00.000Z #### Dates - Event date: 2026-06-30T00:00:00.000Z Reasoning: Historical inferred resource provides scale but lacks current technical confidence. - Negative factor: Historical data - Negative factor: Inferred category Evidence · table > 0.32 Context: 778 #### 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 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 **JORC Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with JORC Code \(Australia\) — high reporting standard. Why it applies: reporting\_standards includes jorc **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 **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 5.5 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/tier-one-silver-signs-letter-of-intent-to-option-70-of-compa-xf1-xed-a-minera-ru--d84981bb-7a95-45b1-b9ca-201193510c88#fact-resource-facts-1) RDC Project · molybdenum Historical result Needs review: historical\_restatement #### Identity - Project: RDC Project - Commodity: molybdenum - Region: ecuador - Reported Region: Ecuador - Ticker: TSLV #### Resource scope - Estimate type: resource - Effective date: 2021-01-01T00:00:00.000Z - Reporting standards: jorc, other - QP Signed: No - Resource group id: resource:6fa1e824f8c45ebf2c0a - Deposit or zone: RDC Project - Mining method: open\_pit - Material type: unknown #### Resource Data - Category: inferred - Tonnes: 778000000 - Grade: 0.0166 - Grade Unit: % #### Prior Estimate - Resource Date: 2021-01-01 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2021-01-01T00:00:00.000Z #### Dates - Event date: 2026-06-30T00:00:00.000Z Reasoning: Byproduct molybdenum grade reported in historical estimate. - Negative factor: Historical data - Negative factor: Inferred category Evidence · table > 0.0166 Context: 778 #### 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 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 **JORC Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with JORC Code \(Australia\) — high reporting standard. Why it applies: reporting\_standards includes jorc **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 **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 5.5 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/tier-one-silver-signs-letter-of-intent-to-option-70-of-compa-xf1-xed-a-minera-ru--d84981bb-7a95-45b1-b9ca-201193510c88#fact-resource-facts-2) RDC Project · copper Historical result Needs review: historical\_restatement #### Identity - Project: RDC Project - Commodity: copper - Region: ecuador - Reported Region: Ecuador - Ticker: TSLV #### Resource scope - Estimate type: resource - Effective date: 2021-01-01T00:00:00.000Z - Reporting standards: jorc, other - QP Signed: No - Resource group id: resource:be76d67aa8fd643478d7 - Deposit or zone: RDC Project - Mining method: open\_pit - Material type: unknown #### Resource Data - Category: inferred - Tonnes: 360000000 - Grade: 0.38 - Grade Unit: % #### Prior Estimate - Resource Date: 2021-01-01 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2021-01-01T00:00:00.000Z #### Dates - Event date: 2026-06-30T00:00:00.000Z Reasoning: Historical inferred resource row. - Negative factor: Historical data - Negative factor: Inferred category Evidence · table > 0.38 Context: 360 #### 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 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 **JORC Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with JORC Code \(Australia\) — high reporting standard. Why it applies: reporting\_standards includes jorc **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 **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 5.5 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/tier-one-silver-signs-letter-of-intent-to-option-70-of-compa-xf1-xed-a-minera-ru--d84981bb-7a95-45b1-b9ca-201193510c88#fact-resource-facts-3) RDC Project · molybdenum Historical result Needs review: historical\_restatement #### Identity - Project: RDC Project - Commodity: molybdenum - Region: ecuador - Reported Region: Ecuador - Ticker: TSLV #### Resource scope - Estimate type: resource - Effective date: 2021-01-01T00:00:00.000Z - Reporting standards: jorc, other - QP Signed: No - Resource group id: resource:be76d67aa8fd643478d7 - Deposit or zone: RDC Project - Mining method: open\_pit - Material type: unknown #### Resource Data - Category: inferred - Tonnes: 360000000 - Grade: 0.0182 - Grade Unit: % #### Prior Estimate - Resource Date: 2021-01-01 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2021-01-01T00:00:00.000Z #### Dates - Event date: 2026-06-30T00:00:00.000Z Reasoning: Byproduct molybdenum grade reported in historical estimate. - Negative factor: Historical data - Negative factor: Inferred category Evidence · table > 0.0182 Context: 360 #### 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 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 **JORC Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with JORC Code \(Australia\) — high reporting standard. Why it applies: reporting\_standards includes jorc **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 **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 5.5 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/tier-one-silver-signs-letter-of-intent-to-option-70-of-compa-xf1-xed-a-minera-ru--d84981bb-7a95-45b1-b9ca-201193510c88#fact-resource-facts-4) RDC Project · copper Historical result Needs review: historical\_restatement #### Identity - Project: RDC Project - Commodity: copper - Region: ecuador - Reported Region: Ecuador - Ticker: TSLV #### Resource scope - Estimate type: resource - Effective date: 2021-01-01T00:00:00.000Z - Reporting standards: jorc, other - QP Signed: No - Resource group id: resource:1678938aba83d9bd9c2e - Deposit or zone: RDC Project - Mining method: open\_pit - Material type: unknown #### Resource Data - Category: inferred - Tonnes: 162000000 - Grade: 0.45 - Grade Unit: % #### Prior Estimate - Resource Date: 2021-01-01 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2021-01-01T00:00:00.000Z #### Dates - Event date: 2026-06-30T00:00:00.000Z Reasoning: Historical inferred resource row. - Negative factor: Historical data - Negative factor: Inferred category Evidence · table > 0.45 Context: 162 #### 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 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 **JORC Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with JORC Code \(Australia\) — high reporting standard. Why it applies: reporting\_standards includes jorc **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 **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 5.5 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/tier-one-silver-signs-letter-of-intent-to-option-70-of-compa-xf1-xed-a-minera-ru--d84981bb-7a95-45b1-b9ca-201193510c88#fact-resource-facts-5) RDC Project · molybdenum Historical result Needs review: historical\_restatement #### Identity - Project: RDC Project - Commodity: molybdenum - Region: ecuador - Reported Region: Ecuador - Ticker: TSLV #### Resource scope - Estimate type: resource - Effective date: 2021-01-01T00:00:00.000Z - Reporting standards: jorc, other - QP Signed: No - Resource group id: resource:1678938aba83d9bd9c2e - Deposit or zone: RDC Project - Mining method: open\_pit - Material type: unknown #### Resource Data - Category: inferred - Tonnes: 162000000 - Grade: 0.0193 - Grade Unit: % #### Prior Estimate - Resource Date: 2021-01-01 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2021-01-01T00:00:00.000Z #### Dates - Event date: 2026-06-30T00:00:00.000Z Reasoning: Byproduct molybdenum grade reported in historical estimate. - Negative factor: Historical data - Negative factor: Inferred category Evidence · table > 0.0193 Context: 162 #### 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 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 **JORC Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with JORC Code \(Australia\) — high reporting standard. Why it applies: reporting\_standards includes jorc **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 **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 5.5 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/tier-one-silver-signs-letter-of-intent-to-option-70-of-compa-xf1-xed-a-minera-ru--d84981bb-7a95-45b1-b9ca-201193510c88#fact-resource-facts-6) RDC Project · copper Historical result Needs review: historical\_restatement #### Identity - Project: RDC Project - Commodity: copper - Region: ecuador - Reported Region: Ecuador - Ticker: TSLV #### Resource scope - Estimate type: resource - Effective date: 2021-01-01T00:00:00.000Z - Reporting standards: jorc, other - QP Signed: No - Resource group id: resource:54bf48f0cba378d4b5c6 - Deposit or zone: RDC Project - Mining method: open\_pit - Material type: unknown #### Resource Data - Category: inferred - Tonnes: 88000000 - Grade: 0.52 - Grade Unit: % #### Prior Estimate - Resource Date: 2021-01-01 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2021-01-01T00:00:00.000Z #### Dates - Event date: 2026-06-30T00:00:00.000Z Reasoning: Historical inferred resource row. - Negative factor: Historical data - Negative factor: Inferred category Evidence · table > 0.52 Context: 88 #### 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 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 **JORC Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with JORC Code \(Australia\) — high reporting standard. Why it applies: reporting\_standards includes jorc **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 **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 5.5 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/tier-one-silver-signs-letter-of-intent-to-option-70-of-compa-xf1-xed-a-minera-ru--d84981bb-7a95-45b1-b9ca-201193510c88#fact-resource-facts-7) RDC Project · molybdenum Historical result Needs review: historical\_restatement #### Identity - Project: RDC Project - Commodity: molybdenum - Region: ecuador - Reported Region: Ecuador - Ticker: TSLV #### Resource scope - Estimate type: resource - Effective date: 2021-01-01T00:00:00.000Z - Reporting standards: jorc, other - QP Signed: No - Resource group id: resource:54bf48f0cba378d4b5c6 - Deposit or zone: RDC Project - Mining method: open\_pit - Material type: unknown #### Resource Data - Category: inferred - Tonnes: 88000000 - Grade: 0.0206 - Grade Unit: % #### Prior Estimate - Resource Date: 2021-01-01 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2021-01-01T00:00:00.000Z #### Dates - Event date: 2026-06-30T00:00:00.000Z Reasoning: Byproduct molybdenum grade reported in historical estimate. - Negative factor: Historical data - Negative factor: Inferred category Evidence · table > 0.0206 Context: 88 #### 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 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 **JORC Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with JORC Code \(Australia\) — high reporting standard. Why it applies: reporting\_standards includes jorc **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 **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 5.5 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/tier-one-silver-signs-letter-of-intent-to-option-70-of-compa-xf1-xed-a-minera-ru--d84981bb-7a95-45b1-b9ca-201193510c88#fact-resource-facts-8) RDC Project · copper Historical result Needs review: historical\_restatement #### Identity - Project: RDC Project - Commodity: copper - Region: ecuador - Reported Region: Ecuador - Ticker: TSLV #### Resource scope - Estimate type: resource - Effective date: 2021-01-01T00:00:00.000Z - Reporting standards: jorc, other - QP Signed: No - Resource group id: resource:ee06bf419fb5ccab035b - Deposit or zone: RDC Project - Mining method: open\_pit - Material type: unknown #### Resource Data - Category: inferred - Tonnes: 55000000 - Grade: 0.58 - Grade Unit: % #### Prior Estimate - Resource Date: 2021-01-01 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2021-01-01T00:00:00.000Z #### Dates - Event date: 2026-06-30T00:00:00.000Z Reasoning: Historical inferred resource row. - Negative factor: Historical data - Negative factor: Inferred category Evidence · table > 0.58 Context: 55 #### 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 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 **JORC Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with JORC Code \(Australia\) — high reporting standard. Why it applies: reporting\_standards includes jorc **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 **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 5.5 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/tier-one-silver-signs-letter-of-intent-to-option-70-of-compa-xf1-xed-a-minera-ru--d84981bb-7a95-45b1-b9ca-201193510c88#fact-resource-facts-9) RDC Project · molybdenum Historical result Needs review: historical\_restatement #### Identity - Project: RDC Project - Commodity: molybdenum - Region: ecuador - Reported Region: Ecuador - Ticker: TSLV #### Resource scope - Estimate type: resource - Effective date: 2021-01-01T00:00:00.000Z - Reporting standards: jorc, other - QP Signed: No - Resource group id: resource:ee06bf419fb5ccab035b - Deposit or zone: RDC Project - Mining method: open\_pit - Material type: unknown #### Resource Data - Category: inferred - Tonnes: 55000000 - Grade: 0.0218 - Grade Unit: % #### Prior Estimate - Resource Date: 2021-01-01 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2021-01-01T00:00:00.000Z #### Dates - Event date: 2026-06-30T00:00:00.000Z Reasoning: Byproduct molybdenum grade reported in historical estimate. - Negative factor: Historical data - Negative factor: Inferred category Evidence · table > 0.0218 Context: 55 #### 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 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 **JORC Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with JORC Code \(Australia\) — high reporting standard. Why it applies: reporting\_standards includes jorc **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 **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 5.5 years before this release ## 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.