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CGC Headquarters	735 Fourth Line, Oakville, ON, L6L 5B7, Canada
Product Sales & Support	Connect with a sales representative for product questions.
Safety Data Sheets	Download individual sheets or add them to your submittal builder
Corporate Offices	1.905.803.5600
Customer Service	Call 800.387.2690 Oakville, ON: Monday to Friday, 7:30 AM – 5:30 PM ET Montreal, QC: Monday to Friday, 7:30 AM – 5 PM ET
USG Headquarters	USG Corporation, 550 West Adams Street, Chicago, IL 60661, USA