YBC: Ms. Thuy bought 35,700 shares

Ms. Nguyen Thu Thuy has become principal shareholder of Yen Bai Cement and Mineral JSC (HNX: YBC) with information as follows:

• Name of trading institution: Yen Bai Cement and Mineral JSC

• Name of stock held: YBC

• Number of shares held by trading institution before transaction: 234,200 shares

• Number of shares acquired: 35,700 shares

• Total holding following transaction and total percentage following transaction: 269,900 shares (5.579% of Charter capital)

• Date of transaction: 26/05/2011.

hnx

>   VHH: Mr. Tran Van Long registered to buy 1,000 shares (08/06/2011)

>   DIG: Mr. Do Doan Chien registered to buy and sell 10,000 shares (08/06/2011)

>   HDC: Member of the BOD registered to buy 200,000 shares (08/06/2011)

>   LSS: Chairman of the BOD bought 65,430 shares (08/06/2011)

>   TNT: Chairman of the BOD registered to sell 1,700,000 shares (08/06/2011)

>   BMG: Decision on initial listing (08/06/2011)

>   PAC: FTIF bought 276,800 shares (Revised 03-Jun-2011) (08/06/2011)

>   PAC: FTIF registered to sell 665,730 shares (08/06/2011)

>   SBS: ACOMBANK registered to sell 9,420,000 shares (08/06/2011)

>   NTB: Violation of information disclosure of an inside shareholder (08/06/2011)