# GR Silver Mining Commences 20,000 m Step-Out Drilling Campaign at San Marcial Accelerating the 2026 Resource Expansion Program Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/gr-silver-mining-commences-20-000-m-step-out-drilling-campaign-at-san-marcial-ac--c213080e-20af-4bc5-af21-cada044f9a62 Original source: https://money.tmx.com/en/quote/GRSL/news/6057873037190091/gr-silver-mining-commences-20-000-m-step-out-drilling-campaign-at-san-marcial-ac Publisher: tmx Original announcement: 2026-02-18T11:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: GR Silver Mining Ltd. - Ticker: GRSL - Exchange: TSX - Region: Durango and Sinaloa, Mexico - Primary commodity: Silver - Secondary commodities: Gold - Document categories: Drill results, Other - Extracted: 2026-09-16 03:08:01 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary GR Silver Mining has commenced a 20,000-metre step-out drilling campaign at the San Marcial Area of the Plomosas Silver Project in Mexico. The program aims to expand the silver resource footprint and support an updated Mineral Resource Estimate and Preliminary Economic Assessment planned for late 2026. The company has also relocated its exploration office to Durango to improve operational efficiency and manage regional security risks. Reasoning: The announcement details the mobilization of a significant drilling program aimed at resource expansion, supported by existing permits and high-grade historical results, despite regional security concerns. - Positive factor: Commencement of a large 20,000 m step-out drilling campaign - Positive factor: Strategic relocation to Durango to mitigate operational/security risks - Positive factor: Existing five-year surface drilling permit in place - Positive factor: Strong historical high-grade intercepts \(e.g., 374 g/t Ag\) - Negative factor: Operational challenges and security risks in Sinaloa requiring office relocation Facts used in scoring: 3 ## Classification and evidence **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: The 20,000 m program is explicitly described as a step-out drilling program targeting resource expansion beyond current limits. Evidence · text > 20,000-metre step-out drilling program **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: The release details specific QA/QC procedures including blanks, duplicates, standards, and laboratory re-assay protocols. Evidence · text > The Company has implemented QA/QC procedures, which include the insertion of blank, duplicate, and standard samples ## Extracted facts Stored fact records: 3. Some facts used in scoring do not have a stored record. ## Drill Results (3) ### SMS25-09 [Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-mining-commences-20-000-m-step-out-drilling-campaign-at-san-marcial-ac--c213080e-20af-4bc5-af21-cada044f9a62#fact-drill-facts-0) Plomosas · silver Historical result Needs review: historical\_restatement #### Identity - Hole ID: SMS25-09 - Project: Plomosas - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: GRSL #### Geometry - Grade: 260 - Grade Unit: g/t - Intercept: 75 m #### Classification - Sample Type: drill #### QA/QC - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-02-18T00:00:00.000Z Reasoning: Historical high-grade silver intercept mentioned as part of the 2025 campaign success. - Positive factor: Wide, high-grade intersection Evidence · text > SMS25-09 \(75 m at 260 g/t Ag\) #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "Our engagement with local authorities continues given their past, present and expected future support of the project." K" ### SMS 25-10A [Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-mining-commences-20-000-m-step-out-drilling-campaign-at-san-marcial-ac--c213080e-20af-4bc5-af21-cada044f9a62#fact-drill-facts-1) Plomosas · silver Historical result Needs review: historical\_restatement #### Identity - Hole ID: SMS 25-10A - Project: Plomosas - Commodity: silver - Region: mexico - Reported Region: mexico - Ticker: GRSL #### Geometry - Grade: 374 - Grade Unit: g/t - Intercept: 9 m #### Classification - Sample Type: drill #### QA/QC - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: low\_confidence - Historical: Yes #### Dates - Event date: 2026-02-18T00:00:00.000Z Reasoning: Historical high-grade silver intercept mentioned as part of the 2025 campaign success. - Positive factor: Exceptionally high grade Evidence · text > SMS 25-10A \(9 m at 374 g/t Ag #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "Our engagement with local authorities continues given their past, present and expected future support of the project." K" ### SMS 25-10A [Link to this fact](https://atlas-extractions.minestarters.com/news/gr-silver-mining-commences-20-000-m-step-out-drilling-campaign-at-san-marcial-ac--c213080e-20af-4bc5-af21-cada044f9a62#fact-drill-facts-2) Plomosas · gold Historical result Needs review: historical\_restatement #### Identity - Hole ID: SMS 25-10A - Project: Plomosas - Commodity: gold - Region: mexico - Reported Region: mexico - Ticker: GRSL #### Geometry - Grade: 32.1 - Grade Unit: g/t - Intercept: 1 m #### Classification - Sample Type: drill #### QA/QC - QA/QC Disclosed: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: low\_confidence - Historical: Yes #### Dates - Event date: 2026-02-18T00:00:00.000Z Reasoning: Historical gold intercept mentioned as part of the 2025 campaign success. - Positive factor: Gold discovery associated with silver intercept Evidence · text > an associated gold discovery of 1 m at 32.1 g/t Au #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "Our engagement with local authorities continues given their past, present and expected future support of the project." K" ## 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.