G Mining Ventures' Gold Reserves Triple, Paving Path to Mid-Tier Status

BROSSARD, Quebec – March 12, 2026 – G Mining Ventures Corp. (TSX:GMIN) has dramatically reshaped its future, announcing a staggering 221% year-over-year increase in its gold reserves. The update, effective as of December 31, 2025, boosts the company’s Proven and Probable Mineral Reserves to 6.52 million ounces, a transformative event driven primarily by the successful Feasibility Study at its Oko West project in Guyana.

This leap in certified gold ounces solidifies the company's multi-asset strategy and places it on a clear trajectory to ascend into the ranks of mid-tier gold producers. With one mine generating cash in Brazil, a world-class project under construction in Guyana, and a third asset advancing through technical studies, G Mining Ventures is building a diversified portfolio designed for significant growth and long-term production.

The Engine of Growth: Oko West Comes into Focus

The centerpiece of GMIN's announcement is the Oko West Project in Guyana, which single-handedly contributed 4.64 million ounces of new Proven and Probable Reserves at a robust average grade of 1.89 grams per tonne (g/t) gold. This addition follows the completion of a comprehensive 2025 Feasibility Study, which not only confirmed the project's vast scale but also outlined its compelling economic potential.

According to technical filings, the study projects an after-tax Net Present Value (NPV) of $2.2 billion and a powerful 27% Internal Rate of Return (IRR), calculated using a base-case gold price of $2,500 per ounce. Oko West is designed to be a long-life operation, with a 12.3-year mine life forecast to produce an average of 350,000 ounces of gold annually. Its All-In Sustaining Costs (AISC) are projected at a competitive $1,123 per ounce, promising strong margins in the current gold price environment.

Construction at the Guyanese site is advancing rapidly, with the company reporting that 60% of detailed engineering is already complete. This progress keeps the project firmly on schedule to pour its first gold in the second half of 2027, with commercial production slated to begin in January 2028. The high conversion rate of resources to reserves—approximately 88% at Oko West—demonstrates strong geological confidence and significantly de-risks the asset as it moves toward production.

A Three-Pillar Strategy for Stability and Growth

While Oko West represents the future, the company’s strategy is firmly anchored by a multi-asset platform that provides both current cash flow and future optionality.

"Today's mineral reserve update positions G Mining Ventures with significant strategic optionality," said Louis-Pierre Gignac, President & Chief Executive Officer, in the company's official release. "We now have a cash-generating asset at Tocantinzinho supporting the construction of Oko West, one of the largest gold projects under construction globally, while advancing Gurupi through technical studies."

The Tocantinzinho (TZ) mine in Pará State, Brazil, serves as the first pillar. Having achieved commercial production in 2024, the mine produced 172,000 ounces of gold in 2025, establishing itself as a steady cash-generating operation. As of year-end 2025, TZ holds 1.87 million ounces of reserves, ensuring a solid production base for years to come. An $8–10 million exploration budget for 2026 is aimed at discovering satellite deposits to extend the mine's life further.

The third pillar is the Gurupi Project, also in Brazil. Acquired in late 2024, Gurupi holds 1.83 million ounces of Indicated Resources. GMIN is actively advancing the project, with a Preliminary Economic Assessment (PEA) and an updated Mineral Resource Estimate scheduled for the second half of 2026. A significant $21 million budget for 2026 will fund resource definition drilling and the advancement of its Environmental and Social Impact Assessment, signaling the company's commitment to unlocking its value.

Riding the Golden Wave: Market Context and Financial Outlook

GMIN’s expansion comes at an opportune moment, with market sentiment for gold remaining exceptionally strong. The economic projections for Oko West were based on a $2,500 per ounce gold price, a figure that appears increasingly conservative in light of recent forecasts from major financial institutions.

Analysts at banks like Goldman Sachs and J.P. Morgan have projected gold prices could surge well past $4,000 per ounce in 2026, driven by factors including central bank buying and anticipated shifts in monetary policy. Should these forecasts materialize, the already robust economics of Oko West would see a substantial uplift, potentially shortening its 2.9-year payback period and dramatically increasing its lifetime cash flow.

This reserve update provides a concrete basis for a significant re-rating of the company's valuation by the market. Investors and analysts will be watching closely when GMIN hosts its year-end 2025 results conference call on March 26, 2026, where management is expected to provide further color on its operational and financial outlook.

Navigating Risks and Fueling the Pipeline

Developing a project of Oko West's magnitude is not without its challenges. Large-scale mine construction involves inherent execution risks, from logistical hurdles to managing costs and timelines. However, GMIN's report that detailed engineering is 60% complete and construction is on schedule provides a measure of confidence that these risks are being proactively managed by a team known for its development expertise.

The company is also not resting on its laurels. To ensure a sustainable future and continuous value creation, GMIN has allocated a formidable $42–50 million exploration budget for 2026. This includes a planned 110,000-meter drilling program across its portfolio in Brazil and Guyana. This aggressive exploration push is designed to not only replace mined ounces but to continue expanding the resource base, feeding the development pipeline and reinforcing the company’s long-term growth story well into the next decade.

The successful conversion of inferred resources to the indicated category in the latest update, coupled with mineralization at Oko West that was not included in the 2025 estimate, points to significant organic growth potential that the upcoming drill programs will aim to define.