CTN: Results of share repurchase for Treasury stock

1. Name of issuer: Underground Works Construction JSC

2. Head Office: P101, 1st floor, 17T5 Trung Hoa Nhan Chinh urban zone, Trung Hoa ward, Cau Giay district, Hanoi

3. Telephone: 04 2510101   Fax: 04 2510100

4. Stock code: CTN

5. Securities type: Common stock

6. Number of shares registered for repurchase: 74,400 shares

7. Purpose: For Treasury Stock

8. Number of shares repurchased: 0 share

9. Time for repurchase: From 08/08/2008 to 08/09/2008

10. Total number of current treasury shares: 70,600 shares

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