ACG Materials, headquartered in Norman, OK, is a diversified minerals miner and processor with 20 mines, 4 downstream processing facilities and over 500M tons of reserves across Oklahoma, Texas, Nevada, Washington and British Columbia. The Company supplies varying grades of gypsum, anhydrite, limestone, caliche, sand & gravel, and aggregate products that serve industries such as building products (wallboard, plasters, decorative home goods), agriculture (fertilizer), infrastructure (roads, bridges), oil & gas (roads and well pads) and food & pharmaceuticals (animal feed, beer, baked goods). ACG Materials was founded as Harrison Gypsum in 1955.

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