CDGM built ISO14001 2004 environment management system in Oct. 2006,which successfully passed the preliminary and final ISO14001 2004 environment management system examination and verification process in Sept. 2007, and received the certificate later In Dec. 2007.

CDGM obtained OHSAS certificate in December 2008 after passing the first trial site-inspection on EHS Management System EHS-MS in July 2008 and the second trial in September 2008.

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