COM: Change in the ownership ratio of a major shareholder

Materials - Petroleum JSC, reports the change in the ownership ratio:

• Stock symbol: COM

• Trader: Saigon Transportation Mechanical Corporation (SAMCO)

• Owning volume after trading: 722,580 shares (5.12%)

• Sold volume: 392,320 shares

• Owning volume after trading: 330,260 shares (2.34%)

• Trading method: Order matching

• Trading period: May 26, 2011.

HOSE

>   ACL: Mr. Nhan registered to sell 473,159 shares (06/08/2011)

>   VTO: Mr. Trong registered to buy 35,000 shares (06/08/2011)

>   PFL: Notice of transaction of principal shareholder (PVX) (06/08/2011)

>   TST: Mr. Dong registered to buy 3,000 shares (06/08/2011)

>   PDC: Notice of transaction of connected institution (06/08/2011)

>   ONE: Mr. Hung acquried 87,400 shares (06/08/2011)

>   PV2: Results of share repurchase for Treasury stock (06/08/2011)

>   PVS: Board Resolution on share transfer (06/08/2011)

>   DLG: Ms. Huong disposed 2,000,000 shares (04/08/2011)

>   LDP: Nguyen Kim Investment and Development JSC registered to dispose 309,800 shares (04/08/2011)