ANNOUNCEMENT · 2026.08.20

Investor Relations Contact Information

For clear and consistent communication, the investor-relations email address is sunyonglin@ubeisci.com.

Investors, potential investors and other stakeholders may contact the Company through sunyonglin@ubeisci.com.

Public information is based on the Company's official website and formal releases. Information that has not been made public is handled in accordance with the Company's information-management requirements.

Website content is provided for corporate information and industry communication. Specific business, cooperation and other matters are subject to formal Company documents or signed agreements.