Zemex Corporation

With gold and silver prices on the rise, and mining costs on the slide, Hecla Mining (HL-N) ventured further into the black during the first three months of 2003.The Idaho-based miner made US$6.7 mill…

Denver — Hecla Mining (HL-N) has filed suit in U.S. federal court against Toronto-based Zemex (ZMX-T) for refusing to close on the agreed-upon transaction to buy Hecla’s industrial minerals subsidiar…