PETROVIETNAM DRILLING & WELL SERVICES CORPORATION 4th Fl., 111A Pasteur Str., Ben Nghe Ward, District 1, HCMC, Vietnam Phone: 84-8-39142012 - Fax: 84-8-39142021/ 84-8-39142022 Website: www.pvdrilling.com.vn Business license No. 4103004335 issued 1st time by HCMC Department of Planning & Investment on Feb. 15, 2006 LETTER OF ATTORNEY PV DRILLING ANNUAL GENERAL SHAREHOLDERS’ MEETING 2014 Kindly addressed to: Petrovietnam Drilling and Well Services Corporation (PV Drilling) I. SHAREHOLDER’S INFORMATION: No. ID Card No./ Business license No. Full Name Total No. of shares owned Signature A= II. AUTHORIZED REPRESENTATIVE’S INFORMATION: No. of shares No. Full Name ID Card No. authorized Total Signature of authorised representatives B= III. AUTHORIZATION FOR BOARD MEMBERS: No. Full Name Title ID Card No. 1 2 3 4 5 6 7 Đỗ Đức Chiến Phạm Tiến Dũng Trần Văn Hoạt Kiều Thị Hoài Minh Dương Xuân Quang Đinh Thị Thái Lê Văn Bé Total Chairman Board member Board member Board member Board member Board member Board member 023133137 273226687 025523974 024921362 011686426 011738783 2A7E410322 No. of shares authorized Signature of authorised representatives B= IV. AUTHORIZATION FOR VICE PRESIDENT TO BE IN CHARGE OF PRESS RELEASES AND SHAREHOLDER RELATIONS: No. of ID Card Signature of authorised No. Full Name Position shares No. representative authorized Vice President 1 Hồ Ngọc Yến Phương 022204431 & CFO Total B= Note : 1. A must equal to B 2. Authorized Representative represents the shareholder to attend the Annual General Shareholders’ Meeting and votes with the exact number of shares authorized by shareholders as listed in the table above. 3. In case there is NO authorized representative (Section II) to attend the meeting, shareholder may also authorize one of the members of PV Drilling Board of Directors (Section III) or member of Shareholder relation Division (Section IV). 4. Authorized Representative attending PV Drilling’s the Annual General Shareholders’ Meeting 2014 must carry valid ID card or passport that will be compared and confirmed by the Shareholder Verification Committee, please kindly fax the letter of attorney to: 84-8-39142 021 no later than 4 P.M., April 21st, 2014. 5. Kindly confirm your participation by telephone: +84-8-39142 012 (Ms. Doan Dao Ngoc Trang).