???????????????????? ( ?????? : Thang Long Industrial Park ) ??????? ?????????? ??????????????????????????? ????? ?????????????? ???????????????????????????????????????? Dong Anh Chemical Company ( ?????????????????????????? ) ??? ???????? ???????????? (Sumitomo Corporation) ^[1] ??????????????????????? ?.?. 2540 ????????? ?? ?.?. 2543 ?????????????????????????????????????????????? ???? ?????? ?????????

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• http://www.thanglong-ip.com/ ???????? 2007-10-24 ??? ??????????????