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: 1,248,400 shares (7.8%)
- Number of shares acquired: 50,000 shares
- Total holding following transaction and total percentage following transaction: 1,298,400 shares (8.11%)
- Date of transaction: 01/12/2022
- Purpose of transaction: Investment