Perpetua in talks with Glencore, others for US antimony processing; shares surge

** Shares of mining company Perpetua Resources PPTA hit more than a 12-year high of $22.62; last up 10.8%

** Says in talks with Glencore GLEN, Trafigura (TRAFG.UL), Clarios and Sunshine Silver about partnership to refine antimony in U.S.

** PPTA plans to seek proposals in coming weeks, with decision expected by end of year

** Expected to begin construction of its antimony and gold mine in Idaho; mine will be largest U.S. supplier of antimony

** PPTA says it "is pursuing processing arrangements that maximize value for shareholders while securing an antimony supply chain for U.S. consumers"

** Only plans to extract antimony but not refine it, fueling push to secure processing partnerships

** Including session's moves, stock is up ~96% YTD