SDD: Change in shareholding of principal shareholder (Do Nguyen Huu)

- Name of issuer: Song Da Investment and Construction Joint Stock Company
- Stock code: SDD
- Securities type: common stock
- Name of principal shareholder: Do Nguyen Huu 
- Number of shares held by the principal shareholder before transaction: 1,324,700 shares (8.28%)
- Number of shares disposed: 148,500 shares
- Total holding following transaction and total percentage following transaction: 1,176,200 shares (7.35%)
- Date of transaction: 01/03/2023
- Purpose of transaction: Divestment