G Mining Capital identifies, evaluates, and pursues mining investment opportunities — combining partner capital, operational expertise, and institutional governance to advance projects responsibly from development through production.
G Mining Capital is a specialist mining investment firm — a joint venture between the Gignac family's G Mining Group and Sumitomo Corporation, combining world-class mine-building expertise with global institutional capital.
Read More →GMC has built an experienced team of mining finance, technical and operational professionals — with deep hands-on expertise across the full project lifecycle, from development through production.
Read More →Stay up to date with the latest news, announcements and updates from G Mining Capital and the broader G Mining Group.
Read More →G Mining Capital is a joint venture specialist investment firm — a unique combination of world-class mine-building expertise and global institutional capital, united by a shared commitment to responsible, long-term value creation in mining.
GMC identifies, evaluates, and pursues mining investment opportunities — structuring transactions with either minority or control positions across the full project lifecycle.
Flexible minority stake investments structured to support mining companies through development and into production, without displacing existing ownership.
Control-position transactions where GMC's operational expertise and institutional governance can drive value creation from development through production.
Bespoke transaction structures tailored to each asset's stage, jurisdiction, and capital requirements — from early-stage development to producing mines.
Active partnership with management teams, bringing GMC partners' hands-on mining experience to advance projects responsibly and efficiently.
GMC's primary commodity focus is copper — a critical material for electrification and the global energy transition. We selectively pursue gold and other base metals where opportunities align with our investment thesis and return requirements.
Family-owned mining development group. Technical and operational backbone of GMC through G Mining Services.
One of Japan's leading integrated trading and investment enterprises with a global presence spanning 130+ countries.
Gignac Family · Founded 2006
The G Mining Group is a family-owned mining development group operated by the Gignac family since inception — united by a shared expertise in building and operating mines safely, on budget and on schedule.
GMC's CEO Claude Dufresne held executive positions at GMS prior to co-founding G Mining Capital, ensuring a deep, operational relationship between GMC and the broader group.
住友商事 · Est. 1919
"Enriching lives and the world" — We never pursue easy gains. Integrity and strong unity are cherished principles from which we work to create value for society.
United across regions, cultures, and generations — Sumitomo cultivates opportunity, bridges possibilities, and creates a better tomorrow through passion, determination, and enduring values.
Sumitomo Corporation is one of Japan's leading sōgō shōsha — integrated trading and investment enterprises with a heritage rooted in the Sumitomo Business Spirit. With offices and operations spanning more than 130 countries, Sumitomo combines physical asset ownership with marketing, supply chain and financial capabilities across a broad range of industries.
In mining, Sumitomo takes a long-term approach — acquiring minority stakes with a view to building enduring partnerships with majority operators. The partnership with GMC reflects Sumitomo's commitment to expanding its mining investment footprint through a dedicated, operationally-focused vehicle.
Plan Better, Build Together · Self-Perform Mine Builder
"Build and maintain long-term relationships
while creating value for our stakeholders."
Guided by the values of Respect, Excellence, Family, Integrity and Teamwork — GMS integrates with the client's team to self-perform project development, building fit-for-purpose mines safely, on budget and on schedule.
Experienced professionals with deep expertise in mining investment, project finance, and resource capital markets.
30 years mining industry experience. Held executive positions at G Mining Services, IAMGOLD and Cambior. Founder of Camet Metallurgy. Mining Engineering at Laval University.
LinkedIn
14 years mining & investment experience. Operating roles with Glencore & ArcelorMittal, investment roles in London & Saudi Arabia including with La Mancha. Camborne School of Mines & Imperial College.
18 years mining industry experience. Former senior operating and consultancy roles across exploration & resource geology including at Alkem and 6 years with G Mining Services. QP across several commodities.
LinkedIn
18 years mining and investment experience at Sumitomo Corporation, including at San Cristobal and Sierra Gorda operations, plus leading upstream business development of base metals.
Mining investment professional at Sumitomo Corporation, with experience in copper project oversight, performance monitoring and participation in technical governance and site-based reviews.
Press releases and announcements from G Mining Capital.
Stay informed — subscribe to receive updates directly.
We welcome enquiries from mining companies seeking capital solutions and from investors.
