STH: Result of transaction of connected institution (Thai Hung Trading Joint-Stock Company)

- Name of issuer : Thai Nguyen Book Publishing Joint Stock Company
- Stock code: STH
- Securities type: Common stock
- Name of connected institution: Thai Hung Trading Joint-Stock Company
- Name of person discharging managerial responsibility: Nguyen Thi Quy
- Position in the listed company: Member of Board of Directors, General Manager
- Number of shares held by person discharging managerial responsibility (PDMR)/Director: 0 shares (0%)
- Position in the trading institution: Member of Board of Directors
- Number of shares held by connected person/ institution before transaction: 15,031,240 shares (77.08%)
- Number of shares registered for sale: 4,855,500 shares
- Number of shares disposed: 4,855,500 shares
- Total holding following transaction: 10,175,740 shares
- Total percentage holding following transaction: 52.18%
- Start date of transaction: 12/06/2025
- End date of transaction: 17/06/2025