SDS: Results of transactions of principal shareholders

1. Name of principal shareholder: Song Da 12 JSC

2. Name of stock held: SDS

3. Securities type: Common stock

4. Number of shares held by principal shareholders: 335,000 shares (22,33% Charter capital)

5. Number of shares disposed: 50,000 shares.

6. Date finished of transaction: 04/08/2008

7. Total holding following transaction and total percentage holding following transaction: 285,000 shares (22,33% Charter capital).

HaSTC

>   VC2: Result of transactions of Directors, PDMR (11/08/2008)

>   DCS: Results of transactions of principal shareholders (11/08/2008)

>   B82: Result of transaction of PDMR (11/08/2008)

>   NVC: Notice of record date (11/08/2008)

>   Bond coupon payment QH061120 (11/08/2008)

>   Bond coupon payment CPD071203 (11/08/2008)

>   HASTC Notice: First trading day of additional STC (11/08/2008)

>   HASTC Notice: Official Admission of listing of VE1 (11/08/2008)

>   KBC: Notice of Depository of additional securities (11/08/2008)

>   Trading suspension on HaSTC on national holiday (11/08/2008)