Producer Members ArcelorMittal Dofasco Inc. Hamilton, Ontario Algoma Steel Inc - Sault Ste Marie Ontario Cambridge & Whitby, Ontario Stelco Hamilton & Nanticoke, Ontario Gerdau Long Steel North America Cambridge & Whitby, Ontario Processor/Distributor Members Canadian Slag Services Inc Brantford, Ontario CRH Canada Inc Mississauga, Ontario FRS Inc Brantford, Ontario Harsco Metals Hamilton, ON Whitby, ON Contrecoeur, PQ Lafarge Canada Inc.- Hamilton, Ontario Inter-Ontario - Sault Ste Marie, Ontario St Marys Cement Toronto, Ontario Inter-Ontario (Superior Slag Products) Sault Ste Marie, Ontario TMS International Hamilton, ON L'Orignal, ON Regina, SK, Edmonton, AB Waterford Industrial Services Hamilton, Ontario Associate Members Hatch Mississauga, Ontario