Market Chatter: Rheinmetall Buys Minority Stake in Rock Tech Lithium

11:23 PM EDT, 10/18/2026 (MT Newswires) -- Rheinmetall (RHM.F) acquired a minority stake in German-Canadian lithium mining company Rock Tech Lithium, Bloomberg News reported Oct. 16, citing people familiar with the matter. The unnamed sources said the German defense group's capital injection also benefited the German smelter of Rock Tech. Some of the people said the investment was carried out through the mining company's recent capital raising, noting that Rheinmetall is also investing in the lithium converter that Rock Tech intends to build in Guben, Germany. Rheinmetall and Rock Tech Lithium did not immediately respond to requests for comment from MT Newswires. (Market Chatter news is derived from conversations with market professionals globally. This information is believed to be from reliable sources but may include rumor and speculation. Accuracy is not guaranteed.)