Greentech Technology International Limited — Proxy Solicitation & Information Statement 2012

May 24, 2012

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GOODTOP TIN INTERNATIONAL HOLDINGS LIMITED 萬 佳 錫 業 國 際 控 股 有 限 公 司

(Incorporated in the Cayman Islands with limited liability)

(Stock Code: 195)

FORM OF PROXY

Proxy Form for use at the Extraordinary General Meeting to be held on 11 June 2012 (or any adjournment thereof)

I/We (Note 1)

of

being the registered holder(s) of (Note 2)

share(s) of

HK$0.005 each in the share capital of Goodtop Tin International Holdings Limited (the ‘‘Company’’) hereby appoint the Chairman of the Extraordinary General Meeting or (Note 3)

of

as my/our proxy to attend and vote for me/us and on my/our behalf at the Extraordinary General Meeting of the Company to be held at Room 2607, Greenfield Tower, Concordia Plaza, 1 Science Museum Road, Tsimshatsui, Kowloon, Hong Kong on Monday, 11 June 2012 at 10:30 a.m. (or any adjournment thereof) on the undermentioned resolution as indicated, and, if no such indication is given, as my/our proxy thinks fit:

ORDINARY RESOLUTION

For (Note 4) Against (Note 4)

‘‘THAT:

(a) the agreement dated 4 May 2012 entered into between YT Parksong Australia Holding Pty Limited and Yuntinic (Hong Kong) Resources Company Limited in relation to the supply of copper concentrates (the ‘‘Agreement’’) (copy of which has been produced to this meeting marked ‘‘A’’ and signed by the chairman of the meeting for the purpose of identification) and the transactions contemplated thereunder and the proposed annual cap be and are hereby, confirmed, ratified and approved; and

• (b) the board of directors of the Company be and is hereby authorised to take all such actions as it considers necessary or desirable to implement and give effect to the Agreement and the transactions contemplated thereunder.’’

Dated this

day of

2012

Signed (Note 5):

Notes:

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

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

3. If any proxy other than the Chairman of the Extraordinary General Meeting is preferred, strike out ‘‘the Chairman of the Extraordinary General Meeting or’’ and insert the name and address of the proxy desired in the space provided. Any alteration made to this form must be initialed by the person who signs it.

4. IMPORTANT: If you wish to vote for the resolution, tick the appropriate boxes marked ‘‘FOR’’. If you wish to vote against to the resolution, tick the appropriate boxes marked ‘‘AGAINST’’. Failure to complete the boxes will entitle your proxy to cast his vote at his discretion.

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

6. In the case of joint holders of a share, the vote of the senior who tenders a vote, whether in person or by proxy, shall be accepted to the exclusion of the votes of the other joint holder(s) and for this purpose seniority shall be determined by the order in which the names stand in the register of members in respect of the joint holding, the first named being the senior.

7. To be valid, this proxy form together with power of attorney (if any) or other authority (if any) under which it is signed or a notarially certified copy thereof must be deposited at the Company’s Share Registrar, Tricor Investor Services Limited at 26/F., Tesbury Centre, 28 Queen’s Road East, Wanchai, Hong Kong, not less than 48 hours before the time fixed for holding the meeting (or any adjournment thereof).

8. The proxy need not be a member of the Company but must attend the Extraordinary General Meeting (or any adjournment thereof) in person to represent you.

9. Completion and return of this form will not preclude you from attending and voting at the Extraordinary General Meeting (or any adjournment thereof) if you wish to do so.

10. The full text of the resolutions referred to above appears in the notice of the Extraordinary General Meeting dated 25 May 2012.