Viet Nam Securities Depository and Clearing Corporation (VSDC) would like to announce the record date of corporate action processing for the Securities registering institution as follows:

- Execution rate: 1:1 (1 share - 1 voting right)
- Meeting time: 20/05/2026
- Meeting venue: HaiPhong Construction Joint Stock Corporation No3 - 13th Floor, Htower II Building, 195 Van Cao Street, Gia Vien Ward, Hai Phong City
- Meeting agenda: Approval of the Board of Directors' report, the Supervisory Board's report, the financial statements, 2025 business performance report, and other issues within the authority of the 2026 Annual General Meeting
Coordination details and procedures for corporate action processing for holders of the above securities between VSDC, the Securities registering institution and depository members are specified in the Guideline on corporate action processing for securities holders at VSDC.
HaiPhong Construction Joint Stock Corporation No3 and the parties involved in the process of preparing the dossier, documents of corporate action processing are fully responsible before the law for the legality, accuracy, truthfulness and completeness of the dossier; Institutions and individuals participating in the confirmation of records and documents shall be legally responsible within the scope related to such records and documents as prescribed in Clause 1, Article 11a of the Securities Law No. 54/2019/QH14 dated 26/11/2019, supplemented by Clause 4, Article 1 of Law No. 56/2024/QH15 dated 29/11/2024.