SD3: New principal shareholder Nguyen Huu Bang

Nguyen Huu Bang has become a principal shareholder of Song Da 3 JSC with information as follows:
- Name of stock held: SD3
- Number of shares held by principal shareholder before transaction: 798,303 shares (4.99%)
- Number of shares acquired: 1,800 shares
- Total holding following transaction and total percentage holding following transaction:800,103 shares (5%)
- Date of transaction: 11/02/2025