SPT Energy Group Inc. — Proxy Solicitation & Information Statement 2005

Nov 28, 2005

WING SHAN INTERNATIONAL LIMITED 榮山國際有限公司

(Incorporated in Hong Kong with limited liability)

(Stock Code: 570)

Form of Proxy for use at the Extraordinary General Meeting to be held at the Company’s registered office at Rooms 2801-2805, China Insurance Group Building, 141 Des Voeux Road Central, Hong Kong on Wednesday, 14 December 2005 at 11 a.m. and at any adjournment thereof

I/We[(1)]

of

being the holder(s) of[(2)]

shares of HK$0.10 each of Wing Shan International Limited (the “Company”) hereby appoint[(3)]

of

or failing him/her[(3)]

of

or failing him/her, the Chairman of the meeting to act as my/our proxy at the Extraordinary General Meeting (or at any adjournment thereof) of the Company to be held at the Company’s registered office at Rooms 2801-2805, China Insurance Group Building, 141 Des Voeux Road Central, Hong Kong on Wednesday, 14 December 2005 at 11 a.m. on a poll to vote on my/our behalf as directed below or, if no such indication is given, as my/our proxy thinks fit.

To consider and, if thought fit, pass with or without modifications the Ordinary Resolution to approve the New Fuel Supply Agreement and the transactions contemplated thereunder and the Annual Caps as set out in the Notice of the Extraordinary General Meeting

For[(4)] Against[(4)]

Dated :

2005

Signature[(5)] :

Notes:

1. Full name(s) and address(es) to be inserted in BLOCK CAPITALS .

2. Please insert the number of shares of HK$0.10 each 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).

3. Please insert the name and address of the proxy desired. IF NO NAME IS INSERTED, THE CHAIRMAN OF THE MEETING WILL ACT AS YOUR PROXY.

4. IMPORTANT: IF YOU WISH TO VOTE FOR A RESOLUTION, PLEASE PLACE A “ ” IN THE RELVANT BOX UNDERNEATH THE BOX MARKED “FOR”. IF YOU WISH TO VOTE AGAINST A RESOLUTION, PLEASE PLACE A “ ” IN THE RELEVANT BOX UNDERNEATH THE BOX MARKED “AGAINST” . Failure to complete either box will entitle your proxy to cast his/her vote at his/her discretion. Your proxy will also be entitled to vote at his/her discretion on any resolution properly put to the meeting other than those referred to in the notice convening the meeting.

5. This form of proxy must be signed by you or your attorney duly authorised in writing or, in the case of a corporation, this form of proxy must be under its common seal or under the hand of an officer or attorney duly authorised.

6. If more than one of the joint holders are present at the meeting personally or by proxy, that one of the said persons whose name stands first on the register of members of the Company in respect of the relevant share(s) shall alone be entitled to vote in respect thereof.

7. In order 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 that power or authority, shall be deposited at the registered office of the Company at Rooms 2801-2805, China Insurance Group Building, 141 Des Voeux Road Central, Hong Kong as soon as possible and in any event not less than 48 hours before the time for holding the meeting or any adjourned meeting or poll.

8. A proxy need not be a member of the Company, but must attend the meeting in person to represent you.

9. Any alterations made in this form of proxy should be initialed by the person who signs it.