Lundin emissions vote: Scope 3 strategy implications for mine project teams
Reviewed by Tom Sullivan

First reported on MINING.com
30 Second Briefing
Lundin Mining faces a 7 May shareholder vote on a resolution from investor group SHARE, representing about $148 billion AUM, demanding a comprehensive greenhouse gas strategy covering Scope 1, 2 and full value-chain Scope 3 emissions. SHARE says Lundin is now the only major Canadian miner in its current engagement group without a plan to track and manage supply chain emissions, after Barrick, Kinross, Hudbay, B2Gold and First Quantum made commitments. With Scope 3 typically comprising 75–95% of a miner’s footprint, the vote will influence how Lundin quantifies and manages downstream processing and customer-use emissions.
Technical Brief
- Proposal explicitly requires Lundin to disclose how it will address all “material” greenhouse gas sources.
- Scope 3 coverage demanded spans full value chain, including supply chain and downstream use of metals.
- SHARE has already engaged six Canadian miners in the current proxy season on supply-chain emissions.
- Scope 3 is stated to range from 75% to as high as 95% of miners’ total emissions, depending on commodity mix.
- Climate-related disclosure and value-chain emissions management are being framed as conditions for long-term market access for transition minerals.
Our Take
In our database, Lundin Mining’s recent move to lift its stake in the Caserones copper operation and nearby Los Helados deposit (March 2026 piece) signals a long copper growth runway, which makes long-dated Scope 3 expectations more material for investors focused on the 75–95% emissions share tied to downstream use.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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