07:23 AM EDT, 06/26/2025 (MT Newswires) -- Rock Tech Lithium ( RCKTF ) on Thursday said it has signed a memorandum of understanding with Chinese company Ronbay Technology, which specializes in cathode active materials (CAM), to create a lithium-ion battery materials supply chain in Europe.

Rock Tech will sell battery-grade lithium hydroxide to Ronbay's European cathode production facilities in Poland, to produce battery related components for European markets. In turn, Ronbay will offer direct support, including technical resources and potential investment, to develop Rock Tech's converter in Guben, Germany.

The Guben plant is set to become Europe's first commercial lithium hydroxide refinery, aiming to produce 24,000 tonnes of battery-grade lithium hydroxide annually, enough to supply over 500,000 electric vehicles per year, a statement noted.