Quality

Standard: ISO9001:2015 Number: 46221QZ01550R0S Issue Date: 2022-08-08 Expiry Date: 2025-08-07 Scope/Range: production of environmental protection equipment and Glass-Fused-to-Steel Bolted Tank Issued By: Shanghai Aowei Standard Technical Service Co., Ltd.

Standard: ISO14001:2015 Number: 46221EZ00981R0S Issue Date: 2022-08-08 Expiry Date: 2025-08-07 Scope/Range: Environmental management activities involved in for enamel assembly cansproduction of environmental protection equipment for as Issued By: Shanghai Aowei Standard Technical Service Co., Ltd.

Standard: ISO45001:2018 Number: 46221SZ00903R0S Issue Date: 2022-08-08 Expiry Date: 2025-08-07 Scope/Range: Occupational health and safety management activities of environmental protection equipment for enameled cans Issued By: Shanghai Aowei Standard Technical Service Co., Ltd.

Standard: ISO9001:2015 Number: 23225Q205628R0S Issue Date: 2025-05-20 Expiry Date: 2028-05-19 Scope/Range: Sales of environental protection equipment (double membrane biogas holder, glass-fused-to-steel bolted tank, lipp tank/silo, li Issued By: Beijing Credit First Certiciation Co., Ltd.