CWT International Limited — Proxy Solicitation & Information Statement 2015

Feb 26, 2015

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SINOFERT HOLDINGS LIMITED

中化化肥控股有限公司 *

(Incorporated in Bermuda with limited liability)

(Stock Code: 297)

SUPPLEMENTAL FORM OF PROXY FOR SPECIAL GENERAL MEETING

Supplemental form of proxy for use by shareholders at the special general meeting (the “Meeting”) of Sinofert Holdings Limited (the “Company”) to be held at Salon I, Mezzanine Floor, Grand Hyatt Hong Kong, 1 Harbour Road, Wanchai, Hong Kong on 17 March 2015 at 10:00 a.m..

I/We [(Note][a)] ,

,

of

being the registered holder(s) of ordinary shares [(Note][b)] of HK$0.10 each in the capital

of the Company, HEREBY APPOINT THE CHAIRMAN OF THE MEETING or [(Note][c)]

of

as my/our proxy to vote and act for me/us at the Meeting and at any adjourned meeting as directed below or, if no such indication is [d)] given, as my/our proxy thinks fit [(Note] .

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SUPPLEMENTAL ORDINARY RESOLUTION FOR [(Note][d)] AGAINST [(Note][d)] 2. To re-elect Mr. Lu Xin as an independent non-executive Director of the Company.

Dated this day of 2015

Shareholder’s signature [(Notes][f][and][g)]

Notes:

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

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

• (c) If any proxy other than the Chairman is preferred, strike out “the Chairman of the Meeting or” and insert the name and address of the proxy desired in the space provided. ANY ALTERATION MADE TO THIS SUPPLEMENTAL FORM OF PROXY MUST BE INITIALLED BY THE PERSON WHO SIGNS IT.

• (d) IMPORTANT: IF YOU WISH TO VOTE FOR A RESOLUTION, TICK THE APPROPRIATE BOX MARKED “FOR”. IF YOU WISH TO VOTE AGAINST A RESOLUTION, TICK THE APPROPRIATE BOX MARKED “AGAINST”. Failure to tick any box will entitle your proxy to cast his/her vote at his/her discretion.

• (e) This supplemental form of proxy must be signed by you or your attorney duly authorized in writing or, in the case of a corporation, must be either under its common seal or under the hand of an officer or attorney duly authorized.

• (f) Where there are joint registered holders of share(s) of the Company, any one of such holders may vote at the Meeting either personally or by proxy in respect of such share(s) as if he were solely entitled thereto, but if more than one of such holders be present at the Meeting personally or by proxy, that one of such holders so present whose name stands first on the register of members of the Company in respect of such share(s) shall alone be entitled to vote in respect thereof.

• (g) To be valid, this supplemental form of proxy, together with the power of attorney (if any) or other authority (if any) under which it is signed or a notarially certified copy thereof, must be deposited with the branch share registrar and transfer office of the Company in Hong Kong, Tricor Secretaries Limited, Level 22, Hopewell Centre, 183 Queen’s Road East, Hong Kong, as soon as possible and in any event not later than 48 hours before the time appointed for the holding of the Meeting or any adjournment thereof. Completion and return of the supplemental form of proxy as instructed will not preclude you from subsequently attending and voting at the Meeting or any adjourned meeting if you so wish. In the event that you attend the Meeting after having lodged this supplemental form of proxy, the supplemental form of proxy will be deemed to have been revoked.

• (h) The proxy need not be a member of the Company but must attend the Meeting in person to represent you.

• (i) This supplemental form of proxy is intended to be used for the supplemental resolution set out in the supplemental notice of the Meeting dated 27 February 2015 (the “Supplemental Notice”), and will not affect the validity of the form of proxy duly completed by you in respect of the resolution set out in the notice of the Meeting dated 26 February 2015. If you have already validly appointed a proxy to attend and act on your behalf at the Meeting but have not completed and returned this supplemental form of proxy, your proxy will have the right to vote on the supplemental resolution set out in the Supplemental Notice at his/her discretion.

* For identification purposes only