Jiangsu Changyou Environmental Protection Technology
301557
Hefei conver Holding
603409
LIERDA
832149
4
SHENGNAN TECHNOLOGY
837006
5
CHK
831167
Hecla Mining Co. engages in the provision of precious and base metals. It operates through the following segments: Greens Creek, Lucky Friday, Keno Hill, Casa Berardi, and Other. The company was founded by Amasa B. Campbell, Patsy Clark, and John Finch on October 14, 1891 and is headquartered in Coeur d'Alene, ID.