Anton Oilfield Services Group — Proxy Solicitation & Information Statement 2016

May 10, 2016

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.

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NOTICE OF EXTRAORDINARY GENERAL MEETING

NOTICE IS HEREBY GIVEN that an extraordinary general meeting of Anton Oilfield Services Group (the “ Company ”) will be held immediately after the conclusion of the annual general meeting of the Company which is scheduled to be held at 10 a.m. on Thursday, 26 May 2016 at No. 8 Pingcui West Road, Donghuqu, Chaoyang District, Beijing for the purpose of considering and, if thought fit, passing the following resolution as an ordinary resolution of the Company:

ORDINARY RESOLUTION

1. “ THAT :

   • (a) the supplemental agreement to the 2015 Master Agreement (as defined below) dated 13 April 2016 (the “ Supplemental Agreement ”) between the Company and Schlumberger Far East Inc. (“ Schlumberger ”) pursuant to the Company and Schlumberger have agreed to amend the annual caps under the agreement entered into between the Company and Schlumberger dated 23 December 2015 (the “ 2015 Master Agreement ”) for the supply of relevant products, labour and technical services required for the provision of oilfield services (the “ Products and Services ”) to Schlumberger and its affiliates (the “ Schlumberger Group ”) and Schlumberger will supply and procure its affiliates to supply to the Group the Products and Services for a period of three financial years until 31 December 2018 (as further detailed in the circular of the Company dated 11 May 2016 (the “ Circular ”)), be and is hereby approved, confirmed and ratified;

   • (b) the annual caps under the Supplemental Agreement as set out in the Circular for each of the three financial years ending 31 December 2018 be and are hereby approved and confirmed; and

   • (c) any one director of the Company be and is hereby authorised to do all such acts or things and sign all documents deemed necessary by him/her to be incidental to, ancillary to or in connection with the matters contemplated in the Supplemental Agreement.”

By Order of the Board Anton Oilfield Services Group LUO Lin Chairman

Hong Kong, 11 May 2016

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Notes:

1. A form of proxy for use at the meeting is enclosed herewith.

2. The instrument appointing a proxy shall be in writing under the hand of the appointer or his/her attorney duly authorised in writing or, if the appointer is a corporation, either under its seal or under the hand of any officer, attorney or other person authorised to sign the same.

3. Any shareholder entitled to attend and vote at the meeting is entitled to appoint one or more proxies to attend and vote instead of him. A proxy need not be a shareholder of the Company.

4. In order to be valid, a form of proxy in the prescribed form together with the power of attorney or other authority (if any) under which it is signed must be deposited at the Company’s branch registrar in Hong Kong, Computershare Hong Kong Investor Services Limited, at 17M Floor, Hopewell Centre, 183 Queen’s Road East, Wanchai, Hong Kong not less than 48 hours before the time fixed for holding the meeting.

5. Completion and return of the form of proxy will not preclude you from attending and voting in person at the meeting or at any adjourned meeting thereof (as the case may be) should you so wish, and in such an event, the form of proxy shall be deemed to be revoked.

6. Where there are joint registered holders of any share, any one of such joint holders may vote, either in person or by proxy, in respect of such shares as if he/she was solely entitled thereto, but if more than one of such joint holders are present at the meeting, whether in person or by proxy, the joint registered holder present whose name stands first on the register of members in respect of the shares shall be accepted to the exclusion of the votes of the other registered holders.

As at the date of this notice, the Board comprises Mr. Luo Lin, Mr. Wu Di and Mr. Pi Zhifeng as executive directors; and Mr. Zhang Yongyi, Mr. Zhu Xiaoping and Mr. Wang Mingcai as independent non-executive directors.

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