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: 930,700 shares (5.81%)
- Number of shares acquired: 66,700 shares
- Total holding following transaction and total percentage following transaction: 997,400 shares (6.23%)
- Date of transaction: 07/11/2022
- Purpose of transaction: Investment