Heliostar's Mine Expansion
Heliostar Expands La Colorada Mine in Mexico, Bolstered by Strong Drill Results and Key Permits.
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Heliostar Metals Ltd. is pushing ahead with a major expansion at its La Colorada gold mine in Sonora, Mexico, after receiving the final permit it needed and reporting strong drill results. The company plans to begin pre-stripping for the "Veta Madre Plus" pit cutback within the next 60 days, with first gold from the expanded pit expected in the first half of 2027, according to Sault Star.
The move is a critical step in Heliostar's push to grow from a 50,000-ounce-per-year producer toward a much larger operation. At current gold prices above US$4,000 per ounce, the timing could not be better.
Final Permit Clears the Last Hurdle for Expansion
Heliostar secured the Change of Use of Soils (CUS) permit — the last regulatory document it needed to begin the Veta Madre Plus expansion. In Mexico, this permit is issued by SEMARNAT, the federal environment ministry. It is historically one of the hardest approvals to get. The company had already held environmental permits for both the pit expansion and a leach pad expansion, according to Pembroke Observer.
Heliostar used a legal tool called *positiva ficta* to secure earlier approvals. Under Mexican administrative law, if regulators do not respond to a valid application within 20 business days, the request is automatically approved. The company became the first Canadian miner to receive an open-pit expansion permit under Mexico's current government, a sign analysts called a regulatory "thaw."
Drill Results Point to More Gold Than Previously Counted
Heliostar's drill program covered 44 holes totaling 8,425 meters in the Veta Madre pit area. The program found mineralization that can support the larger pit cutback. Earlier 2025 drilling hit 56 meters at 2.88 grams per tonne (g/t) gold — a strong result for an open-pit operation. The current mine reserve stands at 376,200 ounces of gold, or 17.1 million tonnes grading 0.68 g/t, according to Ontario Farmer.
The Veta Madre Plus cutback targets roughly 20,000 additional ounces of gold above the existing mine plan. CEO Charles Funk said the expansion is "the next step in our plan to grow Heliostar's production profile" and called it "a key deliverable for our aggressive growth ambitions." Pre-stripping — the removal of waste rock before mining ore — is set to start within two months.
A Distressed Asset Turned Cash Engine
La Colorada has a long history. It was discovered in 1926 and helped found Eldorado Gold in 1992. The mine produced about 290,000 ounces before closing in 2002. Argonaut Gold restarted it in 2012 but stopped mining in late 2023, unable to justify the cost of the required pre-strip. Heliostar bought the asset in November 2024 for US$5 million as part of a broader Mexican portfolio, according to Fairview Post.
Heliostar poured its first gold at La Colorada in January 2025. The company now guides for 50,000–55,000 gold ounces across all assets in 2026, with all-in sustaining costs (AISC) of about US$2,000 per ounce. AISC is the full cost to mine and sell an ounce of gold. As higher-grade ore from the Veta Madre expansion enters the circuit in 2027, costs are expected to fall, according to Pembroke Observer.
Local Jobs and a Flagship Project Both Benefit
The expansion supports more than 300 direct jobs in Sonora. Heliostar's first sustainability report, published in May 2026, showed US$10.6 million in local taxes and royalties paid, plus 612 student scholarships funded by current operations. Local officials have publicly backed the expansion, according to Sault Star.
Beyond La Colorada, the cash flow from the expansion matters for the company's bigger ambitions. Heliostar wants to build its flagship Ana Paula gold project in Guerrero, Mexico. Without La Colorada generating money, the company would likely need to sell new shares to raise funds — a costly move for existing investors. Analysts project over US$100 million in pre-tax net cash flow from combined operations in 2026 at current gold prices, according to Ontario Farmer.
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