Standard: IOS 9001 Number: QAIC/CN/150717 Issue Date: 2024-05-10 Expiry Date: 2027-06-28 Scope/Range: The manufacture of steel pole comprising of signal pole, log pole and power transmission steel pole Issued By: AMTIVO CHINA LIMITED

Standard: Business License Number: 320282666202412300034 Issue Date: 2024-12-30 Scope/Range: Business for manufacturing and selling distribution line and transmission line equipments, steel poles, illumination facilities Issued By: Yixing Data Bureau

Standard: ISO 45001 Number: 79325S0859R0S Issue Date: 2025-07-04 Expiry Date: 2028-07-03 Scope/Range: Occupational health and safety management activities involved in the production of steel poles(signal poles, sign poles and powe Issued By: GUOHHENGHUAXIN(BEIJING) CERTIFICATE LTD.

Standard: ISO 14001 Number: 79325E0858R0S Issue Date: 2025-07-04 Expiry Date: 2028-07-03 Scope/Range: Environmental management activities involved in the production of steel poles(signal poles, sign poles and power transmission st Issued By: GUOHENGHUAXIN(BEIJING) CERTIFICATE LTD.