Notice of transaction in shares of affiliated person of internal person

Date of Publication: 19 March, 2026

To: Esteemed Shareholders

Tan Cang Offshore Services JSC. respectfully presents to our Shareholders and Interested Investors the “Notice of transaction in shares of affiliated person of internal person”. Please kindly find the detailed document attached.

Sincerely,

Attached files

20260319 Bao cao giao dich cp nclq cua nnb (signed)

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