Standard: High tech Enterprise Certification Number: GR202437100396 Issue Date: 2024-11-19 Expiry Date: 2027-11-19 Scope/Range: Issued By: Issued by the Ministry of Science and Technology, Ministry of Finance, and State Administration of Taxation of Qingdao City

Standard: Specialized and innovative certification for small and medium-sized enterprises Number: QD20240358 Issue Date: 2024-08-22 Expiry Date: 2027-08-22 Scope/Range: Issued By: Qingdao Municipal Bureau of Private Economy Development and Qingdao Municipal Bureau of Small and Medium sized Enterprises

Standard: Innovative Small and Medium sized Enterprise Certification Number: QD20240506 Issue Date: 2024-05-26 Expiry Date: 2027-05-26 Scope/Range: Issued By: Qingdao Municipal Bureau of Private Economy Development and Qingdao Municipal Bureau of Small and Medium sized Enterprises

Standard: ENVIRONMENTAL MANAGEMENT SYSTEM CERTIFICATE Number: 07625E0038R2S-SD/002 Issue Date: 2025-01-10 Expiry Date: 2028-01-29 Scope/Range: Production and sales of plastic products (heat shrinkable sleeves, electric melting tapes, electric melting sleeves);general mac Issued By: Beijing Zhongrunxing Certification Co., Ltd

Standard: ESTABLISHED OCCUPATIONAL HEALTH AND SAFETYMANAGEMENT SYSTEM CERTIFICATE Number: 07625S0030R2S-SD/002 Issue Date: 2025-01-10 Expiry Date: 2028-01-29 Scope/Range: Production and sales of plastic products (heat shrinkable sleeves, electric melting tapes, electric melting sleeves);general mac Issued By: Beijing Zhongrunxing Certification Co., Ltd

Standard: QUALITY MANAGEMENT SYSTEM CERTIFICATE Number: 07625Q0071R1S-SD/002 Issue Date: 2025-01-10 Expiry Date: 2028-01-06 Scope/Range: Production and sales of plastic products (heat shrinkable sleeves, electric melting tapes, electric melting sleeves);general mac Issued By: Beijing Zhongrunxing Certification Co., Ltd