MSR: UPCoM admission of additional shares

On October 27, 2025, HNX officially admitted the trading registration of additional MSR shares on UPCoM as follows:
Issuer: Masan High-Tech Materials Corporation
Stock code: MSR
Securities type: common stock
Par value: VND10,000/share
Method of share issue: Share issuance according to ESOP (Employee Stock Ownership Plan)
Total volume of additional shares registered for trading on UPCoM: 674,100 shares
Total par value of additional shares registered for trading on UPCoM: VND6,741,000,000
Total volume of shares on UPCoM: 1,099,829,520 shares
Total par value shares on UPCoM: VND10,998,295,200,000
Effective date: October 30, 2025.