Information disclosure of the Resolution on approving transaction with related party of PTSC

03/10/2026

Dear Shareholders,

PetroVietnam Technical Services Corporation respectfully sends to Valued Shareholders and interested Investors Official Letter No. 298/PTSC-BTK dated March 10, 2026 regarding information disclosure of the Resolution on approving transaction with related party of PTSC, as attached.

Sincerely./.

Attachment: