National Gypsum
Introduction '''National Gypsum Company''' is a company based in Charlotte, North Carolina, that produces drywall gypsum boards in the US. It has 17 gypsum board plants in the US and presents itself as a fully integrated building products manufacturer. It is a private company, incorporated as New NGC, Inc. in 1993 after previously filing for Chapter 11 bankruptcy in 1990.It is one of the six producers which hold approximately 81% ofthe worldwide wallboard market (Georgia Pacific, Knauf,Continental Building Products, National Gypsum, Saint-Gobain, and Yoshino Gypsum Co., Ltd)Subsidiary National Gypsum (Canada) Ltd. operates the largest open-pit gypsum mine in the world in Milford Station, Nova Scotia.The company was founded in 1925 by Melvin H. Baker, Joseph F. Haggerty, and Clarence E. Williams.
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