TSD: Change in shareholding of 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: 290,200 shares (22.78%)
- Number of shares acquired: 16,200 shares
- Total holding following transaction and total percentage following transaction: 306,400 shares (24.05%)
- Purpose of transaction: Personal issue
- Date of transaction: 11/03/2025