POS: UPCoM admission of additional shares

On October 28, 2025, HNX officially admitted the trading registration of additional POS shares on UPCoM as follows:
Issuer: PTSC Offshore Services Joint Stock Company
Stock code: POS
Securities type: common stock
Par value: VND10,000/share
Method of share issue: Issue shares to increase share capital from owner's equity 
Total volume of additional shares registered for trading on UPCoM: 5,999,965 shares
Total par value of additional shares registered for trading on UPCoM: VND59,999,650,000
Total volume of shares on UPCoM: 45,999,965 shares
Total par value shares on UPCoM: VND459,999,650,000
Effective date: October 30, 2025.