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: 1,035,200 shares (6.47%)
- Number of shares disposed: 140,000 shares
- Total holding following transaction and total percentage following transaction: 895,200 shares (5.59%)
- Purpose of transaction: Investment
- Date of transaction: 13/03/2023