Đối tác

NICKELHÜTTE AUE GMBH
TONGVO CHEMICALS(HANGZHOU) LIMITED
HEREAUST LIMITED
FEBEX SA
VISWAAT CHEMICALS LIMITED.
YEE LEE INDUSTRIAL CHEMICAL LTD
HEBEI CHENGXIN CO.LTD
FUJI KASEI CO. LTD
A.M.P.E.R.E. INDUSTRIE S.A.S.
HANWHA CORPORATION
CALIBRE CHEMICALS PVT LIMITED
HUANGHUA JINHUA ADDITIVES CO., LTD