Key Points China's domination of rare earth metals is adding value to U.S. mining companies like MP Materials. MP secured a Pentagon-backed $110/kg NdPr price floor and a$500 million Apple magnet deal in July. Output is picking up, but profits aren't here yet. 10 stocks we like better than MP Materials › When it comes to rare earth elements, China is constantly reminding markets who controls the spigot. Indeed, over the last few weeks, Beijing has signaled tighter constraints around exports and ...