PMET Resources Advances On-Site Lithium Refining Strategy Through Technology Collaboration MOU with Mitsui and MWCC

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MOU to evaluate microwave calcination technology as a key enabling step in PMET's downstream strategy, leveraging the potential use of Québec's low-cost renewable hydroelectricity to support on-site lithium chemical processing MONTREAL, June 17, 2026 /CNW/ - June 18, 2026 – Sydney, Australia Highlights PMET has entered into a non-binding Memorandum of Understanding ("MOU") with Mitsui & Co., Ltd. ("Mitsui") and Microwave Chemical Co., Ltd. ("MWCC") to jointly evaluate the application of MWCC's proprietary microwave calcination technology to produce higher-value lithium products on-site at Shaakichiuwaanaan. The collaboration builds on PMET's recently announced Concept Study (refer to News Release, 14 June 2026), which identified a potential pathway to produce battery-grade lithium carbonate at site and capture additional value within the lithium supply chain.   Microwave calcination has the potential to support electric calcination at site, which is the first step in the production of value-added lithium chemicals from spodumene concentrate, leveraging Québec's low-cost, renewable hydroelectric power as a potential alternative to conventional fossil fuel-based calcination. Pilot plant testing in Osaka will use spodumene samples supplied from Shaakichiuwaanaan, with MWCC leading the technical testing program and Mitsui supporting the evaluation of future commercialization and project development pathways. The initiative is aligned with PMET's longer term diversification strategy to reduce logistics intensity and enhance supply chain resilience, with potential benefits including reduced transportation requirements and lower truck traffic, reduced reliance on offshore conversion capacity, and the creation of a higher-value lithium product in Québec. The MOU is non-binding and non-exclusive, and any future commercial deployment remains subject to successful testing and demonstration at scale, technical and economic evaluation, definitive agreements, funding, permitting, approvals and other customary conditions. Ken Brinsden, CEO and Managing Director, comments: "This collaboration is a direct extension of the downstream growth strategy we outlined recently for Shaakichiuwaanaan. Our Concept Study identified a potential pathway to produce battery-grade lithium carbonate on site, and microwave calcination now represents an opportunity to evaluate one o...

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