TSD: Correction on New principal shareholder Cao Thi Thu Thuy

- Name of issuer: TruongSon Tourism Joint Stock Company COECCO
- Stock code: TSD
- Securities type: common stock
- Name of principal shareholder: Cao Thi Thu Thuy
- Number of shares held by the principal shareholder before transaction: 5,000 shares (0.39%)
- Number of shares acquired/disposed: acquired 84,400 shares/disposed 1,600 shares
- Total holding following transaction and total percentage following transaction: 87,800 shares (6.89%)
- Purpose of transaction: Personal issue
- Date of transaction: 12/02/2025 (February 12, 2025)