Hongxing Coldchain (Hunan) Co., Ltd. — Proxy Solicitation & Information Statement 2011

Jan 7, 2011

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(Incorporated in Bermuda with limited liability)

(Stock Code: 702)

PROXY FORM

Form of proxy for use by shareholders at the special general meeting (the “Meeting”) of Sino Oil and Gas Holdings Limited (the “Company”) to be convened at Macau Jockey Club, 1/F., Function Room, China Merchants Tower, Shun Tak Centre, 168-200 Connaught Road Central, Hong Kong on Tuesday, 25 January 2011 at 11:00 a.m. (or at any adjournment thereof)

I/We [(note a)] of being the holder(s) of [(note b)] shares of HK$0.01 each in the capital of the Company hereby appoint the chairman (the “ Chairman ”) of the Meeting or of to act as my/our proxy [(note c)] at the Meeting to be held at Macau Jockey Club, 1/F., Function Room, China Merchants Tower, Shun Tak Centre, 168-200 Connaught Road Central, Hong Kong on Tuesday, 25 January 2011 at 11:00 a.m. and at any adjournment thereof and to vote on my/our behalf as directed below.

Please make a mark in the appropriate box to indicate how you wish your vote to be cast on a poll [(note d)] .

Ordinary Resolutions	Ordinary Resolutions	Ordinary Resolutions	For	Against
1. To grant a general mandate to directors to allot, issue and otherwise deal with the shares of the Company
2. To add the nominal amount of shares repurchased by the Company to the mandate granted to the directors under resolution no. 1
3. To re-elect Mr. Wang Ziming as an executive director of the Company
4. To re-elect Dr. Di Lingjun as an independent non-executive director of the Company
5. To re-elect Dr. Wong Lung Tak Patrick as an independent non-executive director of the Company
Dated this Signature:	day of	2011 (notes e to h)

Notes:

• a Please insert full name(s) and address(es) in BLOCK CAPITALS.

b Please insert the number of shares registered in your name(s). If no number is inserted, this form of proxy will be deemed to relate to all the shares in the capital of the Company registered in your name(s).

• c A proxy need not be a member of the Company. If you wish to appoint some person other than the Chairman of the Meeting as your proxy, please delete the words “the Chairman of the Meeting or” and insert the name and address of the person appointed proxy in the space provided.

d If you wish to vote for any of the resolutions set out above, please tick (“✓”) the boxes marked “For”. If you wish to vote against any of the resolutions, please tick (“✓”) the boxes marked “Against”. If this form returned is duly signed but without specific direction on any of the proposed resolutions, the proxy will vote or abstain at his discretion in respect of all resolutions; or if in respect of a particular proposed resolution there is no specific direction, the proxy will, in relation to that particular proposed resolution, vote or abstain at his discretion. A proxy will also be entitled to vote at his discretion on any resolutions properly put to the Meeting other than those set out in the notice convening the Meeting.

e In the case of a joint holding, this form of proxy may be signed by any joint holder, but if more than one joint holder is present at the meeting, whether in person or by proxy, that one of the joint holder whose name stands first on the register of members in respect of the relevant joint holding shall alone be entitled to vote in respect thereof.

f The form of proxy must be signed by a shareholder, or his attorney duly authorised in writing, or if the shareholder is a corporation, either under its Common Seal or under the hand of an officer or attorney so authorised.

• g To be valid, this form of proxy together with any power of attorney or other authority (if any) under which it is signed or a notarially certified copy of such power or authority must be deposited with Computershare Hong Kong Investor Services Limited, the branch share registrar of the Company in Hong Kong, at Shops 1712-1716, 17/F., Hopewell Centre, 183 Queen’s Road East, Wanchai, Hong Kong not later than 48 hours before the time of the meeting or any adjourned meeting.

• h Any alteration made to this form should be initialed by the person who signs the form.