TST: Result of transactions of Directors, PDMR

TST announces the result of transactions of Directors, PDMR as follows:

-    Name of issuer: Telecommunication Technical Service JSC

-    Stock code: TST

-    Name of person discharging managerial responsibility/Director: Mr. Nguyen Duc Dong

-    Position: Chairman of the Board of Directors

-    Securities type: Common stock

-    Number of shares held by the shareholder: 23,000 shares

-    Number of shares acquired: 3,000 shares

-    Total holding following transaction: 26,000 shares

-    Purpose of transaction: Personal

-    Date of transaction: From 1/4 - 2/4/2009

hastc

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