G Mining Ventures Reports Year-End 2025 Mineral Reserves and Resources; Gold Reserves Increase 221% to 6.52 Moz
G Mining transforms into a multi-asset intermediate producer as Oko West reserves soar and strategic backing solidifies the balance sheet.

The most recent news (March 12, 2026) reports a massive 221% year-over-year increase in consolidated Mineral Reserves, now totaling 6.52 Moz of gold. This is primarily driven by the addition of 4.64 Moz from the Oko West Project in Guyana following its 2025 Feasibility Study. Just days prior (March 9, 2026), the company announced a CAD 427 million strategic investment from La Mancha Investments, which exercised its top-up right to maintain a 19.9% stake at CAD 45.89 per share. Operationally, the company provided 2026-2027 guidance, forecasting 160k-190k oz production from Tocantinzinho (TZ) in 2026, increasing to 200k-235k oz in 2027, with Oko West first gold targeted for H2 2027.
The impact is Material - Positive. - Reserve Growth: The 221% increase in reserves transforms GMIN from a single-asset producer to a multi-asset intermediate with a clear path to >500,000 oz annual production by 2028. - Financial De-risking: The CAD 427 million equity injection from La Mancha significantly reduces the need for additional debt to fund the USD 973 million Oko West build. This is a major vote of confidence from a sophisticated mining investor. - Operational Consistency: The TZ mine in Brazil is meeting or exceeding nameplate capacity (108% in May 2025 per transcript) and generating free cash flow (USD 36M in Q1 2025) to self-fund growth. - Permitting: Securing the 20-year Mining License for Oko West (Dec 2025) removes the primary regulatory hurdle for the company's flagship growth asset.
G Mining Ventures is a gold producer and developer focused on Latin America. - Flagship Project: Oko West (Guyana). It has 4.64 Moz of reserves at 1.89 g/t Au. It is expected to produce ~350,000 oz/year over a 12.3-year mine life. - Operating Asset: Tocantinzinho (TZ) Mine (Brazil). A steady-state producer with 1.87 Moz reserves, providing the cash flow engine for the group. - Growth Asset: Gurupi Project (Brazil). Currently in exploration/permitting phase with 1.83 Moz Indicated Resources.