<div> <div><label>Result of transaction of Directors, PDMR (Tran Ho Bac)</label></div> <div>- Name of issuer: Petro Vietnam Technical Services Corporation<br> - Stock code: PVS<br> - Securities type: Common stock<br> - Name of person discharging managerial responsibility /Director: Tran Ho Bac<br> - Position in the listed company: General Manager<br> - Number of shares held by the shareholder before transaction: 2,149 shares (0%)<br> - Number of shares registered for acquisition: 200,000 shares<br> - Number of shares acquired: 200,000 shares<br> - Total holding following transaction: 202,149 shares<br> - Total percentage holding following transaction: 0.04%<br> - Start date of transaction: 28/10/2025<br> - End date of transaction: 20/11/2025</div> </div>

PetroVietnam Technical Services Corp provides services to petroleum companies. The Company is involved in leasing and chartering, operation and maintenance, properties management and mineral water production.

Result of transaction of Directors, PDMR (Tran Ho Bac)

Board Resolution

<div> <div><label>Notice of transaction of Directors, PDMR (Le Chien Thang)</label></div> <div>- Name of issuer: Petro Vietnam Technical Services Corporation<br> - Stock code: PVS<br> - Name of person discharging managerial responsibility /Director: Le Chien Thang<br> - Position in the listed company: Deputy General Manager<br> - Number of shares held by the shareholder before transaction: 124,900 shares (0.03%)<br> - Nature of transaction: order matching &amp; negotiation<br> - Number of shares to be disposed: 124,900 shares<br> - Reason for transaction: Personal<br> - Expected Start date of transaction: 24/11/2025<br> - Expected End date of transaction: 19/12/2025</div> </div>

Notice of transaction of Directors, PDMR (Le Chien Thang)

Notice on the share issuance for dividend payment 2024

<div> <div><label>Notice of record date for Dividend payment by share</label></div> <div>1. Issuer: Petro Vietnam Technical Services Corporation<br> 2. Stock code: PVS<br> 3. Par value: VND10,000/share<br> 4. Record date: 28/11/2025<br> 5. Ex-date: 27/11/2025<br> 6. Reason: Dividend payment by share<br> + Exercise rate: 100:7 ((A shareholder owning 01 share is entitled to 01 right to receive new shares; 100 rights to receive new shares will receive 7 new shares)<br> Rounding Method and Handling of Fractional Shares: The number of shares issued as dividends to each shareholder will be rounded down to the unit digit. Any fractional shares resulting from this rounding (if any) will be cancelled.<br> Example: On the record date for receiving the stock dividend, shareholder A owns 120 shares. With an issuance ratio of 7%, shareholder A will receive a calculated number of new shares as follows: 120 X 7% = 8.4 shares. The fractional share (0.4) will be cancelled. The new number of shares shareholder A receives is 8 shares.<br> + Place of payment:<br> - For deposited shares: securities companies where shares of shareholders have been deposited.<br> - For undeposited shares: Petro Vietnam Technical Services Corporation on working days (from Monday to Saturday). Securities certificate and Identification Card (original copy) are required. In case of authorization, a proxy with certified seal of the local authority is further requested in addtion to the mentioned above.</div> </div>

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