BT6: Trading of Institution 

620 - Chau Thoi Concrete Corporation (620CCC) discloses trading of institution as follows:

Stock symbol: BT6

Trader: Vien Dong Assurance Corporation (VASS)          

Representative: Mr. Tran Van Ngoc (member of BOD of 620CCC)

Owning volume (before trading): 119,030 shares (1.08%)

Registered volume to sell: 119,030 shares

Trading time: from May 14th 2008 to May 30th, 2008

Owning volume (after trading): 0.

HoSE

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>   TPC: Change of the shareholders’ meeting time (13/05/2008)

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>   MAFPF1: NAV from 1 May 2008 to 8 May 2008 (13/05/2008)