STUTTGART, Germany—German-Canadian start-up Rock Tech Lithium Inc. has begun construction of a new lithium processing plant in Guben, Germany.
Rock Tech signed an agreement with Mercedes-Benz last year to supply the German automaker with enough high-grade lithium hydroxide to produce some150,000 fully electric vehicles. The agreement is part of a Mercedes initiative to make its EV supply chain more localized and more vertically integrated.