{{Short description|American gypsum corporation}} {{distinguish|United States Gypsum}} thumb|The National Gypsum Building in Buffalo, New York '''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.<ref>{{cite web | url=http://www.nationalgypsum.com/about/index.htm | title=National Gypsum Overview | date=2015-06-24 | publisher=nationalgypsum.com | accessdate=2017-05-26}}</ref> It is a private company, incorporated as New NGC, Inc. in 1993 after previously filing for Chapter 11 bankruptcy in 1990.<ref>{{Cite web|url=https://www.simmonsfirm.com/mesothelioma/asbestos-exposure/companies/national-gypsum-company/#:~:text=As%20a%20condition%20of%20filing%20for%20Chapter%2011%20bankruptcy%2C%20National%20Gypsum%20had%20to%20create%20an%20asbestos%20bankruptcy%20trust%20fund%20to%20provide%20compensation%20to%20current%20and%20future%20victims%20of%20exposure%20to%20the%20company%E2%80%99s%20asbestos%2Dcontaining%20products.|title=National Gypsum bankruptcy|website=Simmons Hanly Conroy|date=8 November 2023 |language=en}}</ref> In 1995, Clemmie Spangler took over National Gypsum for $1.2 billion, through Delcor Inc., a private investment company controlled by him.<ref name="auto">{{cite news|url=https://www.nytimes.com/1995/05/17/business/gypsum-accepts-sweetened-bid-of-1.2-billion.html|title=Gypsum Accepts Sweetened Bid Of $1.2 Billion|first=Kenneth N.|last=Gilpin|date=17 May 1995|website=The New York Times|access-date=28 July 2018}}</ref> Spangler had been chairman of National Gypsum and owned 20% of the company, and his family went on to own the whole company.<ref name="auto"/><ref>{{cite web|url=http://clt.biz/bizprofile/excellence-across-the-board/|title=Excellence Across the Board - CLT Biz|author=|date=|website=clt.biz|access-date=28 July 2018}}</ref>

It is one of the six producers which hold approximately 81% of the worldwide wallboard market (Georgia Pacific, Knauf, Continental Building Products, National Gypsum, Saint-Gobain, and Yoshino Gypsum Co., Ltd).<ref>{{cite web | url=http://www.lafarge.com/04022008-Activities-Details_gypsum_business-en.pdf | title=EXCERPT FROM THE 2007 ANNUAL REPORT: INFORMATION ON LAFARGE - 3.3 Business description - Gypsum | date=2011-05-25 | accessdate=2017-05-26}}</ref>

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.<ref>{{cite web | url=http://www.nationalgypsum.com/about/history.htm | title=History | date=2015-06-24 | publisher=nationalgypsum.com | accessdate=2017-05-26}}</ref>

==References== <references/>

==External links== {{Commons category}} * {{Website|http://www.nationalgypsum.com}}

Category:Privately held companies based in North Carolina Category:Companies based in Charlotte, North Carolina Category:Companies that filed for Chapter 11 bankruptcy in 1990 Category:Mining in Nova Scotia

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