Workers inspect an evaporation pond of lithium-rich brine at an Albemarle Corp. mine in Chile’s Atacama Desert in August. Tesla Inc. TSLA, -5.25% reportedly is on the prowl for its own lithium-mining company, and losses are piling up for the stocks of lithium producers. Shares of Albemarle Corp. ALB, -6.27% were down more than 4% on Tuesday, after a drop of nearly 10% on Friday. Livent Corp. LTHM, -3.38% shares extended their losses a third day, down more than 3% on Tuesday after a 9% decline on Friday. And rounding out the main U.S. publicly traded lithium producers, Piedmont Lithium PLL, -1.36% fell more than 2% after a 12% drop on Friday. According to a Bloomberg report late Friday, Tesla is considering a potential bid for Canadian miner Sigma Lithium Corp. SGML, +16.11% . Sigma Lithium is one of “multiple mining options” being explored, the report said. Tesla has long wanted to mine its own metal, a key component in electric-vehicle batteries. In September, the EV maker filed paperwork connected with a proposed lithium refinery in Texas, which would add to Tesla’s presence in the state. It also would be following the advice of the company’s chief executive, Elon […]