Sumitomo Chemical Co,. Ltd.
	Showa Denko K. K.
	Sumitomo Metal Mining Co,. Ltd.
	Organica Feinchemie GmbH Wolfen+FEW Chemicals GmbH.
	TAIYO Nippon Sanso Corporation.
	Advanced Ceramics International Cooperation.
	Sachem Asia Co,. Ltd.
	Other.