Date of Publication:   10 August, 2026

To: Esteemed Shareholders

Tan Cang Offshore Services JSC. respectfully presents to our Shareholders and Interested Investors the “BOD Resolution No. 30/2026/NQ-HDQT dated 10th August, 2026 on Approval of the amendment to the Company’s Charter, the adjustment of the information on the registered securities, the amendment to the trading registration for shares issued to increase the Company’s charter capital from owners’ equity, and the amendment to the Enterprise Registration Certificate”. Please kindly find the detailed document attached.

Sincerely,