SD3: Change in shareholding of principal shareholder (Nguyen Huu Bang)

- Name of issuer: Song Da 3 JSC
- Stock code: SD3
- Securities type: common stock
- Name of principal shareholder: Nguyen Huu Bang
- Number of shares held by the principal shareholder before transaction: 800,403 shares (5%)
- Number of shares disposed: 3,400 shares
- Total holding following transaction and total percentage following transaction: 797,003 shares (4.98%)
- Date of transaction: 02/01/2025