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)
- Planned meeting time: from 3/8/2026 to 17/8/2026 tentatively
- Meeting venue: Dong Son Holdings Joint Stock Company - 11th Floor, CIC Building, No. 2, Nguyen Thi Due Street, Yen Hoa Ward, Hanoi City
- Content for consultation: Matters within the authority of the General Meeting of Shareholders, in accordance with the Company's Charter.
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
Dong Son Infrastructure Investment Joint Stock Company  and the parties involved in the process of preparing the dossier, documents of corporate action processin 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.