Dear Clients,

Thank you for choosing Yangtze Securities Brokerage (Hong Kong) Limited (the “Company”) as your investment partner.

The Company will revise certain provisions of the Securities Trading Agreement with effect from 15 December 2025. For details of the revised terms, please refer to: https://www.cjsc.com.hk/zh-hant/form-download-tc.

No signature or return of any document is required from you in respect of this agreement amendment. The revised provisions shall take effect on 15 December 2025. Your continued use of the Company’s services shall constitute your acknowledgement that you have read and agreed to be bound by the revised Securities Trading Agreement.

Should you have any enquiries, please contact our Customer Service Department during business hours at Hong Kong hotline (852) 2823-0388 or mainland China toll-free hotline 40085-95579.

Yours faithfully,

Yangtze Securities Brokerage (Hong Kong) Limited

28 November 2025