PVC: Ms. Len registered to sell all shares

Drilling Mud Corporation (HNX: PVC) announce its Member of the Supervisory Board transaction notice as follows:

• Name of issuer: Drilling Mud Corporation

• Stock code: PVC

• Name of person discharging managerial responsibility/Director: Ms. Trinh Thi Len

• Position: Member of the Supervisory Board

• Securities type: Common stock

• Number of shares held by the shareholder: 2,506 shares

• Number of shares to be sale: 2,500 shares

• Purpose of transaction: Personal

• Expected date of transaction: From 28/11/2011 to 23/12/2011.

HNX

>   PTI: Result of transaction of connected institution (28/11/2011)

>   PSG: Mr. Duc transaction notice (28/11/2011)

>   PGS: Mr. Phuc transaction results (28/11/2011)

>   AGD: Resolution of the Board of Directors (29/11/2011)

>   CAD: Trading result of inside shareholder (29/11/2011)

>   NHW: Mr. Cuong sold 5,450 shares (29/11/2011)

>   KHA: Ms. Anh bought 3,000 shares (29/11/2011)

>   RAL: Mr. Thanh bought 17,160 shares (29/11/2011)

>   VNM: Report on share buyback (29/11/2011)

>   CDC: Explanation for business results in Q3/2011 (29/11/2011)