DNN: Notice of record date for dividend payment in cash

1. Issuer: Da Nang Water Supply Joint Stock Company
2. Stock code: DNN
3. Par value: VND10,000/share
4. Record date: 10/09/2026
5. Ex-date: 09/09/2026
6. Reason:
     * Dividend payment in cash:
          - Payment method: Cash dividend payment for the first tranche of 2026
          - Exercise rate: 10% per share (shareholder will receive VND1,000 for each share they own)
          - Exercise date: 22/09/2026
          - Place of payment:
               + For deposited shares: securities companies where shares of shareholders have been deposited.
               + For undeposited shares: Finance and Accounting Department, Da Nang Water Supply Joint Stock Company (No. 57 Xo Viet Nghe Tinh Street, Hoa Cuong Ward, Da Nang City) on working days from 22/09/2026. Citizen Identification Card (original copy) is required.