GMIN · G Mining Ventures Corp. · Investor Relations

BROSSARD, QC, May 5, 2026 – G Mining Ventures Corp. (“ GMIN ” or the “ Corporation ”) (TSX: GMIN, OTCQX: GMINF) is pleased to provide a status update as of Q1-2026 on its 100%-owned Oko West Gold Project (“Oko West” or the “Project”) in Guyana, which continues to advance on schedule and on budget, with first gold pour targeted for the second half of 2027 and commercial production expected in January 2028. Since commencing development activities in October 2025, GMIN has made substantial progress across engineering, procurement, site infrastructure and process plant development, while enhancing cost visibility and execution certainty. The Corporation’s early works strategy has enabled it to secure key contracts ahead of inflationary pressures, strengthening cost control and reducing schedule risk across critical scopes. Unless otherwise stated, progress and milestones referenced in this press release are as of March 31, 2026 Highlights Safety performance, a critical pillar of project

Accelerated waste stripping positions Tocantinzinho for stronger second-half production BROSSARD, Quebec, April 21, 2026 (GLOBE NEWSWIRE) - G Mining Ventures Corp. (“ GMIN ” or the “ Corporation ”) (TSX: GMIN, OTCQX: GMINF) reports preliminary production results for the quarter ended March 31, 2026 from its 100%-owned Tocantinzinho Gold Mine (“ TZ ”) in Pará State, Brazil. Results were in line with the Corporation’s expectations. Q1 2026 Preliminary Highlights Gold produced : 31,846 oz Gold sold : 33,776 oz Average plant throughput : 11,811 tpd Average grade processed : 1.03 g/t Au Gold recovery : 90.3% Strip ratio : 4.40x “TZ delivered consistent operating performance during the first quarter, with results reflecting the planned sequencing of lower-grade material as mining activities focused on waste stripping and pit advancement,” said Louis-Pierre Gignac, President and Chief Executive Officer . “This work supports access to higher-grade Phase 2 mineralization and positions the

Delivers district-scale consolidation by combining GMIN’s Oko West Project and G2’s Oko-Ghanie Project into a single, highly synergistic, Tier-1, Oko Project. Combines anticipated LOM average gold production of approximately 350 koz ( 1) from GMIN’s Oko West Project and 228 koz ( 2) from G2’s Oko-Ghanie Project into a single project with the potential to produce over 500 koz on a LOM average basis. Unlocks over C$1 billion of initially quantifiable expected synergies related to capital costs, operating costs, and throughput expansion due to shared infrastructure, mine sequencing, and permitting. ( 3) Accelerates and simplifies the Oko-Ghanie Project’s permitting timeline by combining with the fully permitted Oko West Project. Combined company to be led by GMIN’s best-in-class management team with proven capability to develop, build, finance, and operate mines at the highest standards.

BROSSARD, Quebec, March 25, 2026 (GLOBE NEWSWIRE) - G Mining Ventures Corp. (“ GMIN ” or the “ Corporation ”) (TSX:GMIN, OTCQX:GMINF) today reported its financial and operating results for the fourth quarter and full year ended December 31, 2025. Unless otherwise indicated, all dollar amounts are in U.S. dollars. “ Tocantinzinho completed its first full year of commercial production in 2025, delivering consistent operating performance with production, recoveries and costs in line with expectations, ” said Louis-Pierre Gignac, President and Chief Executive Officer . Production, costs and recoveries largely met or exceeded guidance, underscoring the asset’s reliability and operational discipline. The operation generated $255 million in free cash flow, strengthening our balance sheet while funding the advancement of Oko West. Fourth quarter performance was the strongest of the year across key metrics, including production, grade and margins, demonstrating solid steady-state operations.

Proven and Probable Mineral Reserves total 6.52 Moz of gold at an average grade of 1.60 g/t Au as of December 31, 2025, representing a 221% year-over-year increase. Global Mineral Resources : 9.17 Moz Measured and Indicated and 1.17 Moz Inferred across the Corporation’s portfolio of assets. Oko West Project : 4.64 Moz of Proven and Probable Mineral Reserves at an average grade of 1.89 g/t Au following completion of the 2025 Feasibility Study. Tocantinzinho Mine : 1.87 Moz of Proven and Probable Mineral Reserves at an average grade of 1.17 g/t Au supporting ongoing operations in Brazil. BROSSARD, Quebec, March 12, 2026 (GLOBE NEWSWIRE) - G Mining Ventures Corp . (“ GMIN ” or the “ Corporation ”) (TSX:GMIN, OTCQX:GMINF) reports its consolidated Mineral Reserves and Mineral Resources (“ MRMR ”) as of December 31, 2025, prepared in accordance with National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“ NI 43-101 ”) and the Canadian Institute of Mining,

BROSSARD, Quebec, March 09, 2026 (GLOBE NEWSWIRE) - Please note that the version of the release issued earlier today by G Mining Ventures Corp. (TSX:GMIN, OTCQX:GMINF) was incorrect. The correct version of the release follows: G Mining Ventures Corp . (“ GMIN ” or the “ Corporation ”) (TSX:GMIN, OTCQX:GMINF) announces that the Corporation’s largest shareholder, La Mancha Investments S.à r.l. (“ La Mancha ”), has elected to exercise its top-up right pursuant to the investor rights agreement between the Corporation and La Mancha that was initially entered into on July 22, 2022 and subsequently updated on July 15, 2024, which allows La Mancha to increase its ownership to up to 19.9%. This transaction represented the final opportunity for La Mancha to exercise its right to increase its ownership to such level, after which La Mancha retains only customary anti-dilution rights. Louis-Pierre Gignac, President and Chief Executive Officer, stated: “ This additional investment by La

BROSSARD, QC, March 9, 2026 – G Mining Ventures Corp . (“ GMIN ” or the “ Corporation ”) (TSX:GMIN, OTCQX:GMINF) announces that the Corporation’s largest shareholder, La Mancha Investments S.à r.l. ( “La Mancha” ), has elected to exercise its top-up right pursuant to the investor rights agreement between the Corporation and La Mancha that was initially entered into on July 22, 2022 and subsequently updated on July 15, 2024, which allows La Mancha to increase its ownership to up to 19.9%. This transaction represented the final opportunity for La Mancha to exercise its right to increase its ownership to such level, after which La Mancha retains only customary anti-dilution rights. Louis-Pierre Gignac, President and Chief Executive Officer, stated: “ This additional investment by La Mancha further demonstrates its long-term support and its strong conviction in our ability to create shareholder value as we continue our

BROSSARD, Quebec, Jan. 20, 2026 (GLOBE NEWSWIRE) - G Mining Ventures Corp . (“ GMIN ” or the “ Corporation ”) (TSX:GMIN, OTCQX:GMINF) is pleased to provide its operational guidance for 2026 and 2027 regarding its 100%-owned Tocantinzinho Gold Mine ( “ Tocantinzinho ” or “ TZ ”) in the State of Pará, Brazil, together with a project update on its 100%-owned Oko West Gold Project (“ Oko West ”) in Guyana. Unless otherwise stated, all amounts are in U.S. dollars. 2026 & 2027 Guidance Highlights Gold production in 2026 is expected to range between 160,000 and 190,000 ounces (“ oz ”), representing a modest increase over 2025 at the midpoint of guidance. Production is expected to be weighted toward the second half of the year, with approximately 62% of total output forecast to occur in H2 as higher-grade mineralization becomes available in accordance with the mine plan. The Corporation expects to maintain a competitive cost structure in 2026, with cash operating costs 1 projected

BROSSARD, Quebec, Jan. 13, 2026 (GLOBE NEWSWIRE) - G Mining Ventures Corp. (“ GMIN ” or the “ Corporation ”) (TSX: GMIN, OTCQX: GMINF) is pleased to announce its preliminary production results for the fourth quarter and full year ended December 31, 2025, for the Tocantinzinho Gold Mine (“ TZ ”) located in the State of Pará, Brazil. During the fourth quarter, TZ produced 47,346 ounces of gold, with the mill processing 1,077 kt of ore at an average grade of 1.49 g/t Au and achieving recoveries of 91.8%. For the full year, TZ produced 171,871 ounces of gold, from the processing of 4,086 kt of ore at an average grade of 1.44 g/t Au and recoveries averaging 90.6%. “ Tocantinzinho delivered a strong fourth quarter, successfully closing its first full year of commercial production,” commented Louis-Pierre Gignac, President & Chief Executive Officer , “Continued optimization initiatives are driving improvements in mine and plant productivity. These strong operational results were achieved