- Name of issuer: Hydraulic Engineering Consultant Corporation II
- Stock code: HEC
- Securities type: common stock
- Name of principal shareholder: Nguyen Ngoc Duy
- Number of shares held by the principal shareholder before transaction: 953,610 shares (15.89%)
- Number of shares disposed: 261,610 shares
- Total holding following transaction and total percentage following transaction: 692,000 shares (11.53%)
- Date of transaction: 26/06/2023
- Purpose of transaction: Decrease the shareholding