PMET Resources Inc. has signed a non-binding memorandum of understanding with Mitsui & Co., Ltd. and Microwave Chemical Co., Ltd. to assess the use of MWCC’s microwave calcination technology for on-site conversion of spodumene concentrate at its 100%-owned Shaakichiuwaanaan lithium project in Québec. This collaboration follows a Concept Study announced on June 14 that proposed a pathway for producing battery-grade lithium carbonate directly at the mine site.
The joint pilot program will operate at MWCC’s demonstration facility in Osaka, where 1.5 tonnes of 6.2% Li2O spodumene concentrate from Shaakichiuwaanaan has already been shipped. Under the agreement, MWCC will lead the technical testing of its proprietary microwave calcination process, while Mitsui will support project evaluation and potential commercialization.
Microwave calcination offers an electric alternative to conventional fossil fuel–based calcination, converting alpha-spodumene to beta-spodumene as a precursor to lithium extraction. By leveraging Québec’s abundant low-cost renewable hydroelectric power, the process could reduce carbon intensity and logistics costs, decrease reliance on offshore processing facilities, and generate higher-value lithium chemicals close to the resource.
PMET’s long-term strategy aims to diversify its operations downstream, capturing additional value within the lithium supply chain and enhancing resilience. On-site conversion could lower transportation volumes and truck traffic, reinforcing Québec’s position as a competitive, integrated supplier of lithium products to North American and allied markets.
Chief Executive Officer and Managing Director Ken Brinsden noted that the collaboration unites PMET’s high-quality resource base with MWCC’s specialized microwave technology and Mitsui’s global development expertise. He added that the initiative represents a critical step toward evaluating key technologies to support an on-site lithium carbonate production pathway.
The MOU is non-exclusive and conditional, with any commercial deployment subject to successful pilot-scale testing, definitive agreements, financing, permitting, and regulatory approvals. Upon completion of the testing phase, the parties will review results to determine next steps toward potential scale-up and commercialization.
Source: PR Newswire
