# Heliostar Commences Open Pit Mining at La Colorada Mine Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/heliostar-commences-open-pit-mining-at-la-colorada-mine--c9240ad5-6fb5-4220-90cb-f535f0bc8997 Original source: https://money.tmx.com/en/quote/HSTR/news/4842322721461559/heliostar-commences-open-pit-mining-at-la-colorada-mine Publisher: tmx Original announcement: 2026-08-27T10:30:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Heliostar Metals Ltd. - Ticker: HSTR - Exchange: TSX - Region: Sonora - Primary commodity: Gold - Secondary commodities: None reported - Document categories: Resource update, Production - Extracted: 2026-09-12 06:28:36 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary Heliostar Metals has commenced open pit mining at the Veta Madre pit within its La Colorada property in Sonora, Mexico. The company is transitioning from stockpile leaching to stacking higher-grade ore and has designed an expanded 'Veta Madre Plus' pit to target an additional 20,000 ounces of gold. Reasoning: The announcement marks a transition to higher-grade ore mining and pit expansion, providing a steady production base to fund other projects. - Positive factor: Commencement of open pit mining at Veta Madre pit - Positive factor: Expansion of pit design \(Veta Madre Plus\) targeting additional 20,000 oz gold - Positive factor: On track to meet 2026 production guidance - Positive factor: Becoming a signatory to the International Cyanide Management Code Facts used in scoring: 2 ## Classification and evidence **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: Gregg Bush and Mike Gingles are named as Qualified Persons who approved the disclosure. Evidence · text > Qualified Persons Gregg Bush, P.Eng. and Mike Gingles, MBA... have reviewed the scientific and technical information... and have approved the disclosure herein. ## Extracted facts Stored fact records: 2. Some facts used in scoring do not have a stored record. ## Resource Estimates (2) ### probable [Link to this fact](https://atlas-extractions.minestarters.com/news/heliostar-commences-open-pit-mining-at-la-colorada-mine--c9240ad5-6fb5-4220-90cb-f535f0bc8997#fact-resource-facts-0) La Colorada · gold #### Identity - Project: La Colorada - Commodity: gold - Region: sonora - Reported Region: Sonora - Ticker: HSTR #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - Resource group id: resource:eed3abc28ca495504cfc - Mining method: open\_pit - Ownership percent: 100 % #### Resource Data - Category: probable - Tonnes: 17100000 - Grade: 0.68 - Grade Unit: g/t - Contained Metal: 376000 - Contained Unit: oz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Baseline reserve statement for the La Colorada mine. Evidence · text > reserves of 376,000 ounces of gold grading 0.68 grams per tonne \("g/t"\) in 17.1 million tonnes \("Mt"\) of ore #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **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 ### probable [Link to this fact](https://atlas-extractions.minestarters.com/news/heliostar-commences-open-pit-mining-at-la-colorada-mine--c9240ad5-6fb5-4220-90cb-f535f0bc8997#fact-resource-facts-1) La Colorada · gold #### Identity - Project: La Colorada - Commodity: gold - Region: sonora - Reported Region: Sonora - Ticker: HSTR #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - Resource group id: resource:b6aee987758a1b827052 - Mining method: open\_pit - Ownership percent: 100 % #### Resource Data - Category: probable - Tonnes: 2100000 - Grade: 0.71 - Grade Unit: g/t - Contained Metal: 48000 - Contained Unit: oz #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Specific reserve breakdown for the Veta Madre pit. Evidence · text > Veta Madre pit hosts 48,000 ounces of gold grading 0.71 g/t in 2.1 Mt of ore #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **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 ## 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.