SDH: Notice of transaction of principal shareholder

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

1. Name of issuer: Song Da Infrastructure Construction JSC

2. Stock code: SDH

3. Name of principal shareholder: Chu thi Thu Trang

4. Securities type: Common stock

5.       Number of shares held by the principal shareholder: 350,700 shares (6.05% of Charter capital)

6. Nature of transaction: Acquisition through negotiation or continuous order matching

7. Number of shares registered for acquisition: 100,000 shares

8. Number of shares acquired: 67,900 shares

9. Total holding following transaction and total percentage holding following transaction: 310,000 shares

10. Date of transaction: From 01/03/2010 to 30/04/2010.

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>   S96: Change in Information Disclosure Officer (15/05/2010)

>   SDH: Notice of transaction of Directors, PDMR (Mr. Long) (15/05/2010)

>   SDH: Notice of transactions of share purchase rights of Directors, PDMR (Mr. Thang) (15/05/2010)

>   SDH: Notice of transactions of share purchase rights of Directors, PDMR (Mr. Tung) (15/05/2010)

>   SDH: Notice of transactions of share purchase rights of Directors, PDMR (Mr. Khai) (15/05/2010)

>   SDJ: Result of transactions of Directors, PDMR (Mr. Tuan) (15/05/2010)

>   SDH: Notice of transactions of share purchase rights of Directors, PDMR (Mr. Long) (15/05/2010)

>   S96: Notice of transaction of Directors, PDMR (Mr. Phong) (15/05/2010)

>   SDP: Result of transactions of Directors, PDMR (Mr. Hong) (15/05/2010)

>   SDP: Notice of transaction of Directors, PDMR (Mr. Hong) (15/05/2010)