Related by context. Frequent words. (Click for all words.) 56 Doe Run 52 Occidental Chemical 49 Arch Coal Inc. 48 Renco Group 47 Appliance Recycling Centers 47 Patriot Coal 46 Holcim Ltd. 46 Ispat Inland 46 Noranda Aluminum Holding 45 Rinker Materials 45 Tire Recycling 45 Browning Ferris 45 Allegheny Ludlum 45 LTV Steel 45 Westlake Chemical 44 Asarco 44 Revett Minerals 44 Farmland Industries 43 Peabody Energy 43 Glamis Gold 43 Insituform Technologies 43 N Viro International 43 Ladish Co. 43 Westmoreland Coal 43 Doe Run Peru 43 Lehigh Cement 43 zinc smelter 43 Renco 43 Consolidated Freightways 43 Perma Fix 42 Stillwater Mining Co. 42 ASARCO 42 Asarco LLC 42 Exide Technologies 42 Horsehead 42 EAST ST 41 La Oroya 41 SunCoke 41 Waste Management 41 Laidlaw Transit 41 Arch Coal 40 copper miner Asarco 40 Sunflower Electric Power 40 WCI Steel 40 Stillwater Mining 40 AMCOL International 40 hazardous waste landfill 40 Ormet 40 Century Aluminum Company 40 Oglebay Norton 40 metal recycler 40 Denison Mines 40 China Guodian 40 Uranerz Energy 40 Century Aluminum Co. 40 American Railcar Industries 40 Oct 40 Chemical Waste Management 39 Cleveland Cliffs 39 JR Simplot Co. 39 Perma Fix Environmental 39 Amcast 39 Glamis Gold Ltd. 39 Aurcana 39 AK Steel Holding 39 Allied Waste 39 Schnitzer Steel Industries 39 FY# Q3 earnings 39 Hobet 39 Duratek 39 Phelps Dodge 39 OmniSource 39 Exco Resources 39 Coeur d' Alene Mines 39 Stillwater Mining Company 38 Steel Dynamics 38 Newmont Mining Corp 38 Intermet 38 AK Steel 38 hazardous waste disposal 38 PT Newmont Nusa 38 CNX Gas Corporation 38 Huadian Power International 38 Grupo Mexico 38 Coal 38 Wheeling Pittsburgh 38 cement kiln 38 Magnum Hunter Resources 38 Peru Copper 38 Lyondell Chemical 38 Kennecott Utah 38 smelting 38 IESI 38 Creve Coeur Mo. 38 United Steelworkers 38 Quaker Chemical 38 Compania Minera 38 Cliffs Natural Resources 38 Jiangxi Copper Co 37 Newmont Mining 37 Yukon Nevada