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Hemlock Semiconductor Corporation, based in Michigan, is the largest producer of polysilicon in the United States. It is a subsidiary of Dow Corning founded in 1961, and named after the town of Hemlock, Michigan.〔(PV-tech.org: Hemlock Semiconductor Corporation )〕 Its current facilities produce some 36,000 tons of polysilicon, ranking it among the top 5 producers worldwide. 〔 ;Tennessee facility The company expanded with the Japanese joint venture partners Shin-Etsu Chemical and Mitsubishi Materials, for a new $1.2 billion plant opening near Clarksville, Tennessee. It opened in 2012. The plant was under negotiations in 2011 for a further $3 billion expansion, to keep pace with manufacturing competition from China.〔(Knoxnews.com: Hemlock Semiconductor Corp. plans expansion ); May 2011.〕 In December 2014 Hemlock Semiconductor Corporation announced the permanent closure of the $1.2 billion Tennessee plant, due to adverse conditions from industry oversupply and ongoing challenges from global trade disputes. Many of the approximately fifty employees in Tennessee were offered employment positions in Michigan at the Hemlock Semiconductor or Dow Corning facilities, and the rest received severance packages.〔(Hscpoly.com: Hemlock Semiconductor Corp. manufacutring-facility-closure )〕 ==See also== *Dow Corning Corporation — ''joint venture''. *Corning Inc. *Dow Chemical Company 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hemlock Semiconductor Corporation」の詳細全文を読む スポンサード リンク
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