SDD: Change in shareholding of principal shareholder (Bui Kim Thanh)

- Name of issuer: Song Da Investment and Construction Joint Stock Company
- Stock code: SDD
- Securities type: common stock
- Name of principal shareholder: Bui Kim Thanh
- Number of shares held by the principal shareholder before transaction: 1,205,500 shares (7.53%)
- Number of shares acquired: 430,000 shares
- Total holding following transaction and total percentage following transaction: 1,635,500 shares (10.22%)
- Date of transaction: 17/03/2023