

HIGHLIGHTS: Surface rockchip and channel samples from Antimony Ridge returned strong results over a 900 by 450 metre area; 2.53% antimony and 0.61 g/t gold over 1.3m true width ("TW") 1.02% antimony and 0.33 g/t gold over 3.2m TW 1.37% antimony and 0.27 g/t gold over 1.2m TW Discovery of Antimony Knoll, a second area 1,700 metres west of Antimony Ridge with high grades in initial samples, including 1.11% antimony over 0.6m Antimony zones located up to four kilometres east of the Goldstrike gold resource area, indicating a Carlin-style exploration footprint First-ever antimony-focused drilling program at Goldstrike commenced in July 2026 testing beneath outcropping mineralization Technical data review of gold resource ongoing to determine go-forward work program Vancouver, British Columbia--(Newsfile Corp. - August 20, 2026) - Heliostar Metals Ltd. (TSXV: HSTR) (OTCQX: HSTXF) (FSE: RGG1) ("Heliostar" or the "Company") is pleased to announce results from the first work program at its 100% owned Goldstrike property in Utah, USA.

Q2 2026 Highlights: Produced a record 14,803 gold ounces and 79,710 silver ounces Increased quarterly gold production from San Agustin by 49% Continued low-cost production with cash cost of $1,654 per ounce of gold sold and a corporate all-in sustaining costs ("AISC") of $2,287 per ounce of gold sold Average gold sale price of $4,406 per ounce Record cash position of $43.0 million at end of Q2 with no debt Record revenues of $56.5 million driving record mine operating earnings of $31.1 million; net income of $8.0 million ($0.03/share) Completed acquisition of Goldstrike during Q2 and made a $10.0 million initial cash contribution Vancouver, British Columbia--(Newsfile Corp. - August 7, 2026) - Heliostar Metals Ltd. (TSXV: HSTR) (OTCQX: HSTXF) (FSE: RGG1) ("Heliostar" or the "Company") reported unaudited financial results for the three months ended June 30, 2026 ("Q2").

Heliostar Metals stands out as a debt-free, expanding company in the metals sector. I am particularly attracted to HSTXF's robust financial state, which supports its ongoing operational expansion. The company's future plans and market outlook suggest potential for value creation as it leverages its strong balance sheet.

HIGHLIGHTS: High Grade Panel 99.8 m grading 10.90 g/t gold from 50.5 m 37.0 m grading 6.95 g/t gold from 16.8 m Expansion Zone 49.6 m grading 2.88 g/t gold from 539.4 m, including 9.05 m grading 9.49 g/t gold 16.95 m grading 3.49 g/t gold from 613.2 m North Zone Linkage 21.6 m grading 10.38 g/t gold from 127.0 m, including 6.9 m grading 26.18 g/t gold Expansion Zone remains open to the north, southwest and at depth, with drilling ongoing Feasiblity Study on track for Q2, 2027 with progress update planned for Q3, 2026 Vancouver, British Columbia--(Newsfile Corp. - June 25, 2026) - Heliostar Metals Ltd. (TSXV: HSTR) (OTCQX: HSTXF) (FSE: RGG1) ("Heliostar" or the "Company") is pleased to announce additional drill results from its 100% owned Ana Paula project in Guerrero, Mexico.

HIGHLIGHTS: Veta Madre drilling: 10.9 m grading 22.1 g/t gold from 187.7 m, including 1.3 m grading 174 g/t gold 40.8 m grading 2.23 g/t gold from 51.3 m, including 17.45 m grading 4.55 g/t gold 147.2 m grading 0.70 g/t gold from 32.65 m, including 10.7 m grading 1.98 g/t gold 20.65 m grading 3.35 g/t gold from 337.4 m 32.0 m grading 1.65 g/t gold from 52.5 m 52.35 m grading 1.23 g/t gold from 50.3 m Significant intervals of mineralization outside of the current Veta Madre reserve pit Final approvals for Veta Madre pit expansion received from the Mexican permitting agency Engineering of Veta Madre Plus pit is ongoing with waste stripping on track to start in early Q3 2026 Vancouver, British Columbia--(Newsfile Corp. - June 18, 2026) - Heliostar Metals Ltd. (TSXV: HSTR) (OTCQX: HSTXF) (FSE: RGG1) ("Heliostar" or the "Company") is pleased to announce drill results from the Veta Madre pit area at its operating La Colorada mine in Sonora, Mexico.

Vancouver, British Columbia--(Newsfile Corp. - June 8, 2026) - Heliostar Metals Ltd. (TSXV: HSTR) (OTCQX: HSTXF) (FSE: RGG1) ("Heliostar" or the "Company") is pleased to announce it has completed the previously announced option agreement with Zacatecas Silver Corp. (TSXV: ZAC) ("Zacatecas Silver").

Heliostar Metals targets 500k oz annual gold production by 2030, implying $2.3B revenue at current prices. HSTR's aggressive M&A strategy has built a diversified asset base, highlighted by the Ana Paula acquisition and recent Goldstrike deal. Record Q1 2026 production and strong drill results at Ana Paula underpin a credible growth trajectory and near-term earnings catalysts.

Vancouver, British Columbia--(Newsfile Corp. - June 1, 2026) - Heliostar Metals Ltd (TSXV: HSTR) (OTCQX: HSTXF) (FSE: RGG1), Heliostar is pleased to announce that it will be participating in The Mining Investment Event, Canadas Only Tier 1 Global Mining Investment Conference©, taking place June 2-4, 2026, at the Quebec Convention Centre, Quebec City, Canada. Stephen Soock, VP Investor Relations and Development, will be presenting at 2pm ET on June 2, 2026.
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