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 share - 1 voting right
- Meeting time:  10/12/2025 tentatively
- Meeting venue: Meeting Hall of Hung Yen Petroleum Joint Stock Company; No. 545, Tran Lam Street, Tran Lam Ward, Hung Yen Province
-     Content:
+ Approving the content of dismissing Mr. Quach Van Son from the Board of Directors and electing additional members of the Board of Directors for the 2025-2030 term;
+ Approving the change of the Company's registered office;
+ Other issues (if any) under the authority of the 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