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Highlights: Feasibility Study remains on track for completion in Q2 2027 Targeting a mid-2027 construction decision, with first gold planned before the end of 2028 Updated Mineral Resource estimate in final stages of completion Process flowsheet finalized with metallurgical test work substantially completed Permitting timelines progressing with no material delays Overall feasibility study is 34% complete with early…

Vancouver, British Columbia--(Newsfile Corp. - September 14, 2026) - Heliostar Metals Ltd. (TSXV: HSTR) (OTCQX: HSTXF) (FSE: RGG1) ("Heliostar" or the "Company") is pleased to announce that it has been added to the VanEck Junior Gold Miners ETF ("GDXJ") pursuant to the GDXJ's semi-annual review and quarterly rebalancing, which will be effective at market close on September 18, 2026.

Vancouver, British Columbia--(Newsfile Corp. - August 27, 2026) - Heliostar Metals Ltd. (TSXV: HSTR) (OTCQX: HSTXF) (FSE: RGG1) ("Heliostar" or the "Company") is pleased to announce that the commencement of mining at the Veta Madre pit at the Company's 100% owned La Colorada property occurred earlier this week.

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…

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…