Dear Customers, Partners and Friends from All Walks of Life:

We sincerely appreciate your long-term trust and support extended to Aitisi Testing & Certification (Shanghai) Co., Ltd. To cater to corporate strategic development and business expansion, upon approval by Shanghai Administration for Market Regulation, our corporate name and registered address have been officially modified effective September 18, 2025. Detailed changes are specified as follows:

Original Corporate Name: Aitisi Testing & Certification (Shanghai) Co., Ltd.

Original Registered Address: Room 208, Building 3, No.1500 Beisong Highway, Minhang District, Shanghai

Updated Corporate Name: Huawayda Certification (Shanghai) Co., Ltd.

Updated Registered Address: Room 218, Building 24, No.2988 Dongchuan Road, Minhang District, Shanghai

This name change is intended to further elevate our brand image, integrate advantageous resources, better adapt to market shifts, and deliver higher-quality, more efficient and professional certification services to all customers.

Following the modification, our legal entity identity, Unified Social Credit Identifier, bank accounts and contact information remain unchanged. All existing contracts and service commitments shall stay valid. All contracts, agreements and service commitments executed between your organization and us will not be affected, with all original rights and obligations preserved intact.

After the corporate renaming, the new corporate name will be uniformly adopted for all internal and external documents, contracts, account records and invoice issuance. We sincerely apologize for any inconvenience caused and ask for your understanding.

Going forward, Huawayda Certification (Shanghai) Co., Ltd. will continue to uphold professionalism, impartiality and rigor, further deepen technological innovation and upgrade service standards. We will stand side by side with you to pursue shared prosperity with stricter standards and more thoughtful support!

Thank you again for your understanding and support. Please feel free to contact us should you have any inquiries or require further information.

Huawayda Certification (Shanghai) Co., Ltd.

September 24, 2025