Quality

Standard: ISO9001：2015 Number: 02320Q21359R1M Issue Date: 2020-10-30 Expiry Date: 2023-10-29 Scope/Range: Technological Research and Development, production (processing of tungsten, molybdenum, copper titanium and their alloys), techn Issued By: Beijing Zhong Jian Xie Certification Centre Co.,Ltd.

Standard: ISO14001:2015 Number: 02319E20997R1M Issue Date: 2019-09-23 Expiry Date: 2022-09-05 Scope/Range: environmental management actions relating to technical development and production of high-purity metals and their alloy material Issued By: Zhong Jian Xie Certification Centre Beijing Co., Ltd.

Standard: ISO45001:2018 Number: 02319S20996R1M Issue Date: 2019-09-23 Expiry Date: 2022-09-05 Scope/Range: occupation health and safety management actions relating to technical development and production of high purity metals and their Issued By: Zhong Jian Xie Certification Centre Beijing Co., Ltd.