Links
 
-- Shin-Etsu Chemical Group
  Shin-Etsu Chemical Co., Ltd. http://www.shinetsu.co.jp/
  Shin-Etsu Polymer Co., Ltd. http://www.shinpoly.co.jp/
  Admatechs Co., Ltd. http://www.admatechs.co.jp/
 

-- Heraeus Group
  Heraeus Holding GmbH http://www.heraeus.com/
  Heraeus Quarzglas GmbH & Co.KG@@ http://www.heraeus-quarzglas.com/
  Young Shin Quartz Co.,Ltd. http://www.ysq.co.kr/
 

-- Others
  Semiconductor Equipment Association of Japan http://www.seaj.or.jp/
  Topco Scientific Co., Ltd. http://www.topco.com.tw/

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