-        Stock code: PSG

-        Securities type: Common stock

-        Name of person discharging managerial responsibility /Director: Nguyen Phi Hoang

-        Position in the listed company: Chair of the Board

-        Number of shares held by the shareholder before transaction: 229,121 shares

-        Number of shares registered for sale: 100,000 shares

-        Number of shares registered for acquisition: 100,000 shares

-        Number of shares disposed: 60,000 shares

-        Number of shares acquired: 0 shares

-        Total holding following transaction: 169,121 shares

-        Total percentage holding following transaction: 0.483202%

-        Reason for not completing transaction: the stock market was unfavorable

-        Start date of transaction: 30/03/2012

-        End date of transaction: 25/05/2012