THW: Notice of record date for a ballot

1. Issuer: Tan Hoa Water Supply Joint Stock Company
2. Stock code: THW
3. Par value: VND10,000/share
4. Record date: 15/08/2025
5. Ex-date: 14/08/2025
6. Reason:
     * For a ballot:
          - Exercise rate: 01 share - 01 voting rights
          - Expected exercise date: 08/2025 (The official time will be specifically decided and announced on the Company's website, and a letter will be sent to shareholders to solicit their opinions according to regulations)
          - Place: Tan Hoa Water Supply Joint Stock Company – No. 95 Pham Huu Chi, Cho Lon Ward, Ho Chi Minh City (Old number: 95 Pham Huu Chi, Ward 12, District 5, Ho Chi Minh City).
          - Content of the ballot:
+ Report on Contract No. 1463/HD-TCT-KDDVKH dated March 18, 2025 on periodic water meter replacement in 2025 signed between Tan Hoa Water Supply Joint Stock Company and Saigon Water Supply Corporation - One-member Limited Liability Company (an organization with 04 capital representatives participating in the Board of Directors).
+ Authorize the Company Director to sign the draft Appendix to the contract for periodic water meter replacement in 2025 under Contract No. 1463/HD-TCT-KDDVKH dated March 18, 2025.
+ Authorize the Company Manager to sign the draft Contract for periodic water meter replacement in 2026.
+ Other contents under the authority of the General Meeting of Shareholders (if any).