On March 02, 2023, the Hochiminh Stock Exchange issued Announcement No.349/TB-SGDHCM about the record date of PetroVietNam Drilling Well Service Corporation (stock code: PVD) as follows: - Ex-right date: March 17, 2023 - Record date: March 20, 2023 - Purpose: to organize the 2023 Annual General Meeting of Shareholders. - Exercise ratio: 01 share – 01 voting right - Meeting date: expected from April 20, 2023 to April 26, 2023 - Meeting venue: PetroVietNam Drilling Well Service Corporation.