Plateau Treasures Limited — Proxy Solicitation & Information Statement 2026

May 29, 2026

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited (the "Stock Exchange") take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.

Plateau Treasures Limited

高原之寶有限公司

(Incorporated in the Cayman Islands with limited liability)

(Stock code: 8402)

NOTICE OF ANNUAL GENERAL MEETING

NOTICE IS HEREBY GIVEN that an annual general meeting (the "AGM") of Plateau Treasures Limited (the "Company") will be held at 3302 West Tower, Shun Tak Centre, 200 Connaught Road Central, Hong Kong on Friday, 26 June 2026 at 2:00 p.m., for the following purposes:

ORDINARY RESOLUTIONS

1. To receive and consider the audited consolidated financial statements and the reports of the directors (the "Directors") and auditors of the Company for the year ended 31 December 2025;
2. To re-elect Mr. Ong Cheng Yew as executive Director;
3. To re-elect Ms. Lin Xiaoqin as non-executive Director;
4. To re-elect Mr. Ji Gaofeng as independent non-executive Director;
5. To authorise the board of Directors to fix the Directors' remuneration;
6. To re-appoint ZSZH (HK) Fuson CPA Limited as the auditors of the Company and to authorise the board of Directors to fix their remuneration;

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1. To, as special business, consider and, if thought fit, pass the following resolution (with or without amendment) as ordinary resolution:

THAT:

(a) subject to paragraph (c) below, pursuant to the Rules (the “GEM Listing Rules”) Governing the Listing of Securities on GEM of The Stock Exchange of Hong Kong Limited (the “Stock Exchange”), the exercise by the Directors during the Relevant Period (as defined below) of all the powers of the Company to allot, issue and deal with unissued shares of the Company (the “Shares”) (including any sale or transfer of treasury shares (which shall have the meaning ascribed to it under the GEM Listing Rules and as amended from time to time, “Treasury Shares”) out of treasury) and to make or grant offers, agreements and options, including warrants to subscribe for Shares, which might require the exercise of such powers be and the same is hereby generally and unconditionally approved;

(b) the approval in paragraph (a) above shall authorise the Directors during the Relevant Period to make or grant offers, agreements and options which might require the exercise of such powers after the end of the Relevant Period;

(c) the aggregate number of Shares allotted or agreed conditionally or unconditionally to be allotted (whether pursuant to options or otherwise) by the Directors pursuant to the approval in paragraph (a) above, otherwise than pursuant to (i) a Rights Issue (as defined below); or (ii) the exercise of any options granted under the existing share option scheme of the Company; or (iii) any scrip dividend or similar arrangements providing for the allotment and issue of Shares in lieu of the whole or part of a dividend on Shares in accordance with the articles of association of the Company in force from time to time; or (iv) any issue of Shares upon the exercise of rights of subscription or conversion under the terms of any warrants of the Company or any securities which are convertible into Shares, shall not exceed the aggregate of:

aa) 20% of the number of issued Shares (excluding any Treasury Shares) on the date of the passing of this resolution; and

bb) (if the Directors are so authorised by a separate ordinary resolution of the shareholders of the Company) the number of Shares repurchased by the Company subsequent to the passing of this resolution (up to a maximum equivalent to 10% of the number of issued Shares (excluding any Treasury Shares) on the date of the passing of resolution no. 9),

and the authority pursuant to paragraph (a) of this resolution shall be limited accordingly;

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(d) for the purposes of this resolution:

“Relevant Period” means the period from the date of the passing of this resolution until whichever is the earliest of:

(i) the conclusion of the next annual general meeting of the Company;

(ii) the expiration of the period within which the next annual general meeting of the Company is required by the articles of association of the Company, the Companies Act (Revised) of the Cayman Islands or any other applicable laws of the Cayman Islands to be held; and

(iii) the passing of an ordinary resolution by the shareholders of the Company in general meeting revoking or varying the authority given to the Directors by this resolution;

“Rights Issue” means an offer of Shares, or offer or issue of warrants, options or other securities giving rights to subscribe for Shares open for a period fixed by the Directors to holders of Shares on the register on a fixed record date in proportion to their then holdings of Shares (subject to such exclusion or other arrangements as the Directors may deem necessary or expedient in relation to fractional entitlements, or having regard to any restrictions or obligations under the laws of, or the requirements of, or the expense or delay which may be involved in determining the existence or extent of any restrictions or obligations under the laws of, or the requirements of, any jurisdiction outside Hong Kong or any recognised regulatory body or any stock exchange outside Hong Kong); and

(e) any reference to an allotment, issue, grant, offer or disposal of shares of the Company shall include the sale or transfer of Treasury Shares out of the treasury of the Company (including to satisfy any obligation upon the conversion or exercise of any convertible securities, warrants, options or similar rights to subscribe for shares in the Company) to the extent permitted by, and subject to the provisions of, the GEM Listing Rules and applicable laws and regulations.”

1. To, as special business, consider and, if thought fit, pass the following resolution (with or without amendment) as ordinary resolution:

“THAT:

(a) the exercise by the Directors during the Relevant Period (as defined below) of all powers of the Company to repurchase the Shares on the Stock Exchange or any other stock exchange on which the Shares may be listed and recognised by the Securities and Futures Commission and the Stock Exchange for such purpose, and otherwise in accordance with the rules and regulations of the Securities and Futures Commission, the Stock Exchange, the Companies Act (Revised) of the Cayman Islands and all other applicable laws in this regard, be and the same is hereby generally and unconditionally approved;

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(b) the aggregate number of Shares which may be repurchased by the Company pursuant to the approval in paragraph (a) during the Relevant Period shall not exceed 10% of the number of issued Shares (excluding any Treasury Shares) as at the date of the passing of this resolution, and the authority shall be limited accordingly; and

(c) for the purposes of this resolution, “Relevant Period” means the period from the date of the passing of this resolution until whichever is the earliest of:

(i) the conclusion of the next annual general meeting of the Company;

(ii) the expiration of the period within which the next annual general meeting of the Company is required by the articles of association of the Company, the Companies Act (Revised) of the Cayman Islands or any other applicable laws of the Cayman Islands to be held; and

(iii) the passing of an ordinary resolution by the shareholders of the Company in general meeting revoking or varying the authority given to the Directors by this resolution.”

1. To, as special business, consider and, if thought fit, pass the following resolution (with or without amendment) as ordinary resolution:

“THAT the Directors be and they are hereby authorised to exercise the authority referred to in paragraph (a) of resolution no. 7 above in respect of the number of Shares referred to in sub-paragraph (bb) of paragraph (c) of such resolution.”

By Order of the Board
Plateau Treasures Limited
Wei Guangjun
Chairman and Executive Director

Hong Kong, 29 May 2026

Registered office:
Cricket Square
Hutchins Drive
PO Box 2681
Grand Cayman KY1-1111
Cayman Islands

Principal place of business in Hong Kong:
Room 1701
17/F., Wai Fung Plaza
664 Nathan Road
Mongkok, Kowloon
Hong Kong

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Notes:

1. A member entitled to attend and vote at the AGM convened by the above notice is entitled to appoint one or more proxy, if he held more than one Share, to attend and, subject to the provisions of the articles of association of the Company, to vote on his behalf. A proxy need not be a member of the Company but must be present in person at the AGM to represent the member. If more than one proxy is so appointed, the appointment shall specify the number of Shares in respect of which each such proxy is so appointed.

2. A form of proxy for use at the AGM is enclosed. Whether or not you intend to attend the AGM in person, you are encouraged to complete and return the enclosed form of proxy in accordance with the instructions printed thereon.

3. In order to be valid, the form of proxy must be deposited together with a power of attorney or other authority, if any, under which it is signed or a notarially certified copy of that power or authority, 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 the AGM, i.e. no later than Wednesday, 24 June 2026 at 2:00 p.m. (Hong Kong Time) or any adjournment thereof. Completion and return of a form of proxy will not preclude a shareholder of the Company from attending in person and voting at the AGM or any adjournment thereof, should he/she/it so wish and in such event, the instrument appointing a proxy shall be deemed to be revoked.

4. In relation to the proposed resolutions no. 2 to 4 above, details of the retiring Directors standing for re-election are set out in Appendix II to the circular of the Company dated 29 May 2026.

5. In relation to proposed resolutions nos. 7 and 9 above, approval is being sought from the shareholders for the granting to the Directors of a general mandate to authorise the allotment and issue of Shares of the Company under the GEM Listing Rules. The Directors have no immediate plans to issue any new Shares of the Company other than Shares which may fall to be issued under the share option scheme of the Company or any scrip dividend scheme which may be approved by shareholders.

6. In relation to proposed resolution no. 8 above, the Directors wish to state that they will exercise the powers conferred thereby to repurchase Shares in circumstances which they deem appropriate for the benefit of the shareholders of the Company. An explanatory statement containing the information necessary to enable the shareholders to make an informed decision to vote on the proposed resolution as required by the GEM Listing Rules is set out in Appendix I to the circular of the Company dated 29 May 2026.

7. The record date for determining the entitlement of the shareholders of the Company to attend and vote at the AGM will be Monday, 22 June 2026. In order to be entitled to attend and vote at the AGM, all transfers of Shares of the Company accompanied by the relevant share certificates must be lodged with the Hong Kong branch share registrar of the Company, Union Registrars Limited, at Suites 3301-04, 33/F, Two Chinachem Exchange Square, 338 King's Road, North Point, Hong Kong, for registration no later than 4:00 p.m. on Monday, 22 June 2026.

8. If Typhoon Signal No. 8 or above, or a "black" rainstorm warning or extreme conditions caused by super typhoons is in effect in Hong Kong any time after 8:00 a.m. on the date of the AGM, the meeting will be postponed. The Company will publish an announcement on the website of the Company at www.8402.com.hk and on the Stock Exchange website at www.hkexnews.hk to notify shareholders of the Company of the date, time and venue of the rescheduled meeting.

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As at the date of this announcement, the Board comprises four executive Directors, namely, Mr. Wei Guangjun (Chairman), Mr. Huang Fu Tang, Ms. Chen Xiaoyu and Mr. Ong Cheng Yew; one non-executive Directors, namely, Ms. Lin Xiaoqin; and three independent non-executive Directors, namely, Mr. Wong Carson Ka Chun, Ms. Chen Li and Mr. Ji Gaofeng.

The Directors jointly and severally accept full responsibility for the accuracy of the information contained in this announcement, and confirm, having made all reasonable inquiries, that to the best of their knowledge, opinions expressed in this announcement have been arrived at after due and careful consideration and there are no other facts not contained in this announcement, the omission of which would make any statements in this announcement misleading.

This announcement will remain on the "Latest Listed Company Information" page of the Stock Exchange's website at www.hkexnews.hk for at least 7 days from the date of its publication. This announcement will also be published on the Company's website at www.8402.com.hk.

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