Plateau Treasures Limited — Proxy Solicitation & Information Statement 2023

Aug 17, 2023

GT STEEL CONSTRUCTION GROUP LIMITED

(Incorporated in the Cayman Islands with limited liability)

(Stock code: 8402)

(Warrant code: 8209)

FORM OF PROXY FOR THE EXTRAORDINARY GENERAL MEETING (or any adjournment thereof)

I/We[(note][1)]

of

being the registered holder(s) of[(note][2)] (the ‘‘Company’’), HEREBY APPOINT[(Notes][3][&][4)]

shares of HK$0.01 each of GT Steel Construction Group Limited

of

or failing him, the chairman of the extraordinary general meeting (the ‘‘EGM’’) to act as my/our proxy to act for me/us at the EGM of the Company to be held at 1/F, China Building, 29 Queen’s Road Central, Central, Hong Kong on Monday, 4 September 2023 at 11 a.m. (or at any adjournment thereof) and in particular (but without limitation) at such meeting (or at any adjournment thereof) on a poll, to vote for me/us and in my/our name(s) as indicated below or, if no such indication is given as my/our proxy thinks fit.

Terms used herein shall have the same meaning as ascribed to such term in the notice of the EGM included in the circular of the Company dated 17 August 2023 unless the context herein expressly requires otherwise.

SPECIAL RESOLUTION For[(note][5)] Against[(note][5)] 1. To approve the proposal of the change of the English name of the Company from ‘‘GT Steel Construction Group Limited’’ to ‘‘Plateau Treasures Limited’’ and the adoption of ‘‘高原之寶有限公司’’ as the dual foreign name in Chinese of the Company[(note][12)]

Dated:

Signature[(note][6)] :

Notes:

1. Full name(s) and address(es) to be inserted in BLOCK CAPITALS. The name of all joint holders should be stated.

2. Please insert the number of share of HK$0.01 each registered in your name(s). If no number is inserted, this form of proxy will be deemed to relate to all the shares of the Company registered in your name(s).

3. Any shareholder of the Company entitled to attend and vote at a meeting of the Company shall be entitled to appoint another person as his proxy to attend and vote instead of him. A shareholder of the Company who is the holder of two or more shares may appoint more than one proxy to represent him and vote on his behalf at a general meeting of the Company. A proxy need not be a shareholder of the Company but must attend the meeting in person to represent you.

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

5. IMPORTANT: IF YOU WISH TO VOTE FOR A RESOLUTION, PLEASE PLACE A ‘‘✓’’ IN THE RELEVANT BOX UNDERNEATH THE COLUMN MARKED ‘‘FOR’’. IF YOU WISH TO VOTE AGAINST A RESOLUTION, PLEASE PLACE A ‘‘✓’’ IN THE RELEVANT BOX UNDERNEATH THE COLUMN MARKED ‘‘AGAINST’’. Failure to tick either box will entitle your proxy to cast your vote at his discretion. Your proxy will also be entitled to vote at his discretion on any resolution properly put to the meeting other than that referred to in the notice convening the meeting.

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

7. A shareholder of the Company entitled to more than one vote on a poll need not use all his votes or cast all the votes he uses in the same way.

8. Where there are joint holders of any share, any one of such joint holders may vote, either in person or by proxy, in respect of such share as if he were solely entitled thereto, but if more than one of such joint holders be present at any meeting, the vote of the senior holder who tenders a vote, whether in person or by proxy, shall be accepted to the exclusion or the votes of the other joint holders, and for this purpose seniority shall be determined by the order in which the names stand in the register of members of the Company in respect of the joint holding.

9. In order to be valid, this form of proxy, together with the power of attorney or other authority (if any) under which it is signed, or a certified copy of that power or authority, must be delivered at the Company’s branch share registrar in Hong Kong, Union Registrars Limited, at Suites 3301–04, 33/F, Two Chinachem Exchange Square, 338 King’s Road, North Point, Hong Kong, not less than 48 hours before the time appointed for holding of the meeting or at any adjournment therefor (as the case may be).

10. Completion and return of this form of proxy will not preclude you from attending and voting in person at the meeting (or any adjournment thereof) if you so wish. In the event that you attend the meeting after having lodged this form of proxy, this form of proxy will be deemed to have been revoked.

11. Pursuant to Rule 17.47(4) or the Rules Governing the Listing of Securities on GEM of The Stock Exchange of Hong Kong Limited, any vote of shareholders at a general meeting must be taken by poll except where the chairman or the meeting, in good faith, decides to allow a resolution which relates purely to a procedural or administrative matter to be voted on by a show of hands.

12. The resolution(s) herein is for reference only. Please refer to the notice of the EGM dated 17 August 2023 for the full text of the resolution.

PERSONAL INFORMATION COLLECTION STATEMENT

• (i) ‘‘Personal Data’’ in this statement has the same meaning as ‘‘personal data’’ in the Personal Data (Privacy) Ordinance, Chapter 486 of the Laws of Hong Kong (‘‘PDPO’’).

• (ii) Your supply of Personal Data to the Company is on voluntary basis. If you fail to provide sufficient information, the Company may not be able to process your appointment of proxy and other instructions.

• (iii) Your Personal Data may be disclosed or transferred by the Company to its subsidiaries, its share registrar, and/or other companies or bodies for any of the stated purposes, and retained for such period as may be necessary for our verification and record purposes.

• (iv) You have the right to request access to and/or correction of your Personal Data in accordance with the provisions of the PDPO. Any such request for access to and/or correction of your Personal Data should be in writing to the Personal Data Privacy Officer of Union Registrars Limited.