SD1: Notice of transaction of connected institution (TCL Ha Noi Investment Business Development House Joint Stock Company)

- Name of issuer: Song Da 1 JSC
- Stock code: SD1
- Securities type: Common stock
- Name of connected institution: TCL Ha Noi Investment Business Development House Joint Stock Company
- Name of person discharging managerial responsibility (PDMR)/Director: Nguyen Nhat Minh
- Position in the listed company: Member of the Board of Directors
- Position in the trading institution: Other
- Number of shares held by person discharging managerial responsibility (PDMR)/Director: 0 shares (0%)
- Number of shares held by connected person/institution before transaction: 849,975 shares (17%)
- Number of shares to be acquired: 100,000 shares
- Nature of transaction: Order matching & negotiation
- Purpose of transaction: Long-term investment
- Expected Start date of transaction: 15/05/2025
- Expected End date of transaction: 13/06/2025