BILLINGS, Mont. (AP) â¿¿ Union leaders representing workers at a Montana precious metals mining company say an attempted corporate takeover by a group including former Gov. Brian Schweitzer could harm employees. United Steelworkers representative Steven Gentry said in a Sunday public letter that the union supports Stillwater Mining Co.'s current leadership and wants it to remain. Schweitzer and the Clinton Group, a New York hedge fund, are seeking to oust Stillwater Chairman Frank McAllister and other company directors for alleged mismanagement. Billings-based Stillwater is Montana's largest publicly traded mining company. It spent hundreds of millions of dollars in recent years on foreign ventures, drawing criticism from some investors. McAllister has said the company will spend most of its money in Montana in 2013 as it seeks to expand its platinum and palladium mines.