BTW: Notice of record date for a ballot

1. Issuer: Ben Thanh Water Supply Joint Stock Company
2. Stock code: BTW
3. Par value: VND10,000/share
4. Record date: 22/09/2025
5. Ex-date: 19/09/2025
6. Reason:
     * For a ballot:
          - Exercise rate: 1 share – 1 voting right
          - Expected exercise date: from September 29, 2025 to October 8, 2025
          - Content of the ballot: To collect shareholders' written opinions to approve the resolution of the General Meeting of Shareholders on the contents under the authority of the General Meeting of Shareholders according to the provisions of law and the Charter of organization and operation of Ben Thanh Water Supply Joint Stock Company. The document for collecting opinions will be published on the website: www.capnuocbenthanh.com (Information Disclosure section) on September 29, 2025.
          - Place of implementation: Head office of Ben Thanh Water Supply Joint Stock Company. Address: 194 Pasteur, Xuan Hoa Ward, Ho Chi Minh City.