Periodic disclosure of the 1st Quarter of 2026 Consolidated Financial Statements

04/28/2026

Dear Shareholders,

PetroVietnam Technical Services Corporation (PTSC) respectfully sends to Shareholders and interested Investors, Letter No. 658/PTSC-BTK dated April 28, 2026 regarding Periodic disclosure of the 1st Quarter of 2026 Consolidated Financial Statements, as attached.

Best regards./.

Attachment:
658/PTSC-BTK