TV3: Change in shareholding of principal shareholder (VP Invest Co., Ltd.)

- Name of issuer: Power Engineering Consulting Joint Stock Company 3
- Stock code: TV3
- Securities type: common stock
- Name of principal shareholder: VP Invest Co., Ltd.
- Number of shares held by the principal shareholder before transaction: 1,605,648 shares (16.87%)
- Number of shares acquired: 110,000 shares
- Total holding following transaction and total percentage following transaction: 1,715,648 shares (18.03%)
- Purpose of transaction: Increasing shareholding rate
- Date of transaction: 10/09/2025