Standard: CE Number: M.2025.206.C129280 Issue Date: 2025-10-11 Expiry Date: 2030-09-11 Scope/Range: Submersible Mixer Issued By: UDEM

Standard: ISO 45001 Number: 08924S31469R0S Issue Date: 2024-07-26 Expiry Date: 2027-07-25 Scope/Range: Occupational Health And Safety Management Activities Related To The Production And Sales Of Water Treatment Equipment (Mixers, S Issued By: (ZSBC)

Standard: ISO 14001 Number: 08924E31518R0S Issue Date: 2024-07-26 Expiry Date: 2027-07-25 Scope/Range: Environmental Management Activities Related To The Production And Sales Of Water Treatment Equipment (Mixers, Submersible Thrust Issued By: (ZSBC)

Standard: ISO 9001 Number: 08924Q51924R0S Issue Date: 2024-07-26 Expiry Date: 2027-07-25 Scope/Range: Production And Sales Of Water Treatment Equipment (Mixers, Submersible Thrusters, Rotary Grid Machines, Submersible Aerators, Sc Issued By: (ZSBC)

Standard: Utility Model Patent Certificate Number: Certificate No. 21614528 (Patent No.: ZL 2023 2 3290915.4) Issue Date: 2024-08-30 Expiry Date: 2033-11-01 Scope/Range: A kind of hyperboloid mixer Issued By: China National Intellectual Property Administration (CNIPA)

Standard: Utility Model Patent Certificate Number: Certificate No. 20586470 (Patent No.: ZL 2023 2 2155168.7) Issue Date: 2024-03-15 Expiry Date: 2033-08-11 Scope/Range: A high-speed submersible mixer Issued By: China National Intellectual Property Administration (CNIPA)

Standard: Utility Model Patent Certificate Number: Certificate No. 20791711 (Patent No.: ZL 2023 2 2155235.5) Issue Date: 2024-04-19 Expiry Date: 2033-08-11 Scope/Range: A high-efficiency frame mixer Issued By: China National Intellectual Property Administration (CNIPA)

Standard: Utility Model Patent Certificate Number: Certificate No. 20809502 (Patent No.: ZL 2023 2 2155270.7) Issue Date: 2024-04-19 Expiry Date: 2033-08-11 Scope/Range: A rotary grid machine Issued By: China National Intellectual Property Administration (CNIPA)

Standard: Utility Model Patent Certificate Number: Certificate No. 21295775 (Patent No.: ZL 2023 2 3270653.5) Issue Date: 2024-07-11 Expiry Date: 2033-12-01 Scope/Range: A submersible thruster Issued By: China National Intellectual Property Administration (CNIPA)

Standard: Utility Model Patent Certificate Number: Certificate No. 21036847 (Patent No.: ZL 2023 2 2798326.0) Issue Date: 2024-05-31 Expiry Date: 2033-10-18 Scope/Range: An adjustable paddle mixer Issued By: China National Intellectual Property Administration (CNIPA)

Standard: Third-party Inspection and Testing Report Number: NZJ (2024) ZN01-00246Z Scope/Range: Vertical Hydrofoil Mixer Issued By: Nanjing Institute of Supervision & Testing on Product Quality (NQI)