SDT: Notice of transaction of principal shareholder

SDT announces the notice of transaction of principal shareholder as follows:

- Name of principal shareholder: Viet Fund Management

- Name of stock held: SDT

- Securities type: Common stock

- Number of shares held by principal shareholders: 725,000 shares (6.22% of Charter Capital)

- Number of shares to be disposed: 100,000 shares

- Number of shares to be acquired: 500,000 shares

- Purpose of transaction: Restructure investment

- Date of transaction: From 30/7/2010 to 23/9/2010.

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>   L35: Notice of transaction of Directors, PDMR (Mr. Minh) (28/07/2010)

>   IDV: Result of transaction of connected person (Ms. Huong) (28/07/2010)

>   IDV: Result of transactions of Directors, PDMR (Mr. Thi) (28/07/2010)

>   IDV: Result of transactions of Directors, PDMR (Mr. Ha) (28/07/2010)

>   HUT: Explanation for the change of 799.31% in operating result in QII- 2010 (28/07/2010)

>   SHN: Result of transactions of Directors, PDMR (28/07/2010)

>   SHN: Notice of transactions of share purchase rights of Directors, PDMR (28/07/2010)

>   TKC: Notice of transaction of share purchase rights of connected person (28/07/2010)

>   SHN: Notice of transactions of share purchase rights of Directors, PDMR (28/07/2010)

>   CPC: Result of transaction of connected person (28/07/2010)