Canadá
Airtek, Canada Cement, CanForPro Isle Pierre, Canpar Industries Grand Forks, City of Edmonton, Ecati Diamond Mine, Hinton, Kemmes Mines Inc., Kindermorgan, Lafarge, Lavington Pellet, Neptune Terminal, Placer Dome, Tech Quintette Coal, Weyerhauser APD
EE.UU.
ADM Decatur, Alliant Energy Sutherland/Edgewater, Black Thunder Coal, Asarco Ray, Ash Grove Chanute/Leamington/Louisville, Caballo, Cemex Balcones, Coal Creek, Colowyo, Consumers Whiting Cripple Creek, Drake Cement, Decker Coal, Deserado Mine, DTE Energy, Georgias Power, Kenncott Copper, Midewest Generation Crawford/Detroit Edison/Fisk/Joliet/Powerton, Morenci, Newmont, NIPSCO, North Antilope Rochelle, Pacific Power Huntington, Peabody Energy Rawhide, Phelps Dofge, Powder River Coal, Prairie States, School Creek, Triton North Rochelle
México
Cananea, La Herradura, La Yesca, Peñasquito, Palmarejo Gold
Rep. Dominicana
Pueblo viejo
