Standard: Certification ECM Number: 3N201201.JHPWOO9 Issue Date: 2020-12-01 Expiry Date: 2025-11-30 Scope/Range: Shanghai Walmay Metal Group Co.,ltd Issued By: Ente Certificazione Macchine Srl

Standard: Enterprise credit rating certificate Number: HYC2022018TR0301 Issue Date: 2022-01-07 Expiry Date: 2023-11-30 Scope/Range: Issued By: Huayu Jiacheng international credit Co, Ltd

Standard: ISO Number: No.19922Q00607R0S Issue Date: 2022-05-10 Expiry Date: 2025-05-09 Scope/Range: Sales of metal products (stainless steel, carbon steel, galvanized steel, aluminum, copper) Issued By: China Standard Huaxin (Beijing)

Standard: SGS Number: SHIN1810075155ML Issue Date: 2018-10-22 Scope/Range: ALUMINUM PLATE Issued By: SGS-CSTC Standards TechnicalService (Shanghai)Co., Ltd.

Standard: CE Number: No.:ICR Polska/VC/HM221175 Issue Date: 2022-11-25 Expiry Date: 2027-11-24 Scope/Range: Related with Regulation (EU) 305/2011:EN 10025:2004 Issued By: ICR Polska Co.Ltd.

Standard: QUALITY MANAGEMENT SYSTEMCERTIFICATE Number: 146515 Issue Date: 2020-12-05 Expiry Date: 2023-11-30 Scope/Range: Sales of bearings, metal hardware components, steel and iron Issued By: QUALITY MANAGEMENT SYSTEM

Standard: APPROVAL CERTIFICATE for MATERIALS Number: 50786/A0 BV Issue Date: 2022-12-21 Scope/Range: Issued By:

Standard: TESTCOO Inspection Report Number: 210228110451477R1 Issue Date: 2021-03-05 Scope/Range: Issued By: TESTCOO Inspection Report