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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.
North American Research Corp is a Lewisville, TX-based company in the Manufacturing sector.
Hexol Inc is a Sonoma, CA-based company in the Manufacturing sector.
Vanchlor Co is a Lockport, NY-based company in the Manufacturing sector.
Thompson Oil Co is a Pontiac, MI-based company in the Manufacturing sector.