G Mining Ventures triples gold reserves after Oko West study

Thu Mar 12 2026

G Mining Ventures Corp (TSX:GMIN, OTCQX:GMINF, FRA:W97) revealed its proven and probable gold reserves more than tripled in 2025 after adding a large reserve base from its Oko West project in Guyana.

The miner reported proven and probable reserves of 6.52 million ounces of gold at an average grade of 1.6 grams per tonne (g/t) at the end of 2025, marking a 221% increase year over year.

The increase was driven primarily by the completion of a feasibility study for the Oko West Project in Guyana, which added 4.64 million ounces of reserves at an average grade of 1.89 g/t gold.

CEO Louis-Pierre Gignac told investors the updated reserve base provides the company with several avenues for growth.

“Today's mineral reserve update positions G Mining Ventures with significant strategic optionality,” Gignac said in a statement, noting the company now operates a producing mine while building one of the world’s largest gold projects currently under construction.

The company also reported global measured and indicated resources of 9.17 million ounces, along with 1.17 million ounces of inferred resources across its portfolio.

Production at the Tocantinzinho Mine in Brazil supported the company’s results after the operation completed its first full year of commercial production in 2025.

The Pará State mine processed roughly 189,000 ounces of gold, producing 172,000 ounces during the year, and currently holds 1.87 million ounces of proven and probable reserves at 1.17 g/t gold, the company said.

Meanwhile, construction at the Oko West project is progressing, with 60% of detailed engineering completed and full completion expected by the third quarter of 2026. The project is designed for a 12.3-year mine life with average annual production of about 350,000 ounces of gold.

The company is targeting first gold production in the second half of 2027, with commercial production expected in early 2028.

G Mining Ventures is also advancing the Gurupi Project in Brazil’s Maranhão State, which hosts 1.83 million ounces of indicated resources and 770,000 ounces of inferred resources.

An updated resource estimate and preliminary economic assessment for Gurupi are expected in the second half of 2026, alongside the filing of an environmental and social impact assessment.

Across its portfolio, the company has set a 2026 exploration budget of $42 million to $50 million, including a 110,000-metre drilling program aimed at expanding resources and identifying additional deposits.

Source: https://www.proactiveinvestors.com.au/