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Crushed and Broken Limestone (81)

Agricultural Limestone, Ground (3)

   Perennial Trees Inc

   Vanmeter Bros

   Green Valley Landscaping

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Cement Rock, Crushed and Broken-Quarrying (35)

   Carriere Bernier Ltee

   Aerosion Ltd

   Rockland Construction Ltd

   115207 Ontario Inc

   Dan's Concrete Service

   Beton & Concassage D M

   Carriere Mont St-Hilaire Inc

   Equipements Lalancette Inc

   Lavoie, Luc Cimentier Platrier Inc

   Mariash Construction Ltd

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Chalk Mining, Crushed and Broken-Quarrying (1)

   Walker Community Development Corp

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Dolomite (30)

   Graymont (Qc) Inc

   Layman Ventures Ltd

   Texada Quarrying Ltd

   Atlantic Minerals Limited

   Imasco Minerals Inc

   Elmtree Resources Ltd

   Dunnville Rock Products Limited

   Niagara Waste Systems Limited

   Mosher Limestone Company Limited

   Owen Sound Ledgerock Limited

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Lime Rock, Ground (4)

   Lafarge Canada Inc

   Beton Regional Inc

   Havelock Lime

   Stone Showroom, The

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Limestones, Ground (4)

   Chemical Lime Company Of Canada Inc

   Holcim (Canada) Inc

   Persson, Dean

   Holcim (Canada) Inc

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Whiting Mining, Crushed and Broken-Quarrying (4)

   Vale Inc

   Ormell Sand And Gravel Limited

   Capuano, Richard Inc

   Kodiak Explorations

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