EBS: New principal shareholder - Ngo Anh Thu

Ngo Anh Thu has become a principal shareholder of Educational Book JSC in Hanoi City with information as follows:
- Name of stock held: EBS
- Number of shares held by principal shareholder before transaction: 470,800 shares (4.72%)
- Number of shares acquired: 324,400 shares
- Total holding following transaction and total percentage holding following transaction: 795,200 shares (7.98%)
- Date of transaction: 12/09/2025