Hilong Holding Limited — Proxy Solicitation & Information Statement 2024

Mar 4, 2024

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Hilong Holding Limited 海隆控股有限公司[*]

(Incorporated in the Cayman Islands with limited liability) (Stock Code: 1623) Number of shares to which this form of proxy relates [(Note][1)]

Form of Proxy for use at the 2024 First Extraordinary General Meeting to be held on Thursday, 21 March 2024 (the “Meeting”) and at any adjournment thereof

I/We [(Note][2)] , of , being the registered holder(s) of shares in the issued share capital of Hilong Holding Limited (the “ Company ”) HEREBY APPOINT [(Note][3)] of or failing him, the Chairman of the Meeting as my/our proxy to attend and vote for me/us and on my/our behalf as directed below at the Meeting of the Company to be held at Conference Room, 6th Floor, Hilong Group of Companies Ltd., No. 1825 Luodong Road, Baoshan Industrial Zone, Shanghai, China on Thursday, 21 March 2024 at 10:00 a.m. and at any adjournment thereof. Please tick (“✔”) the appropriate boxes to indicate how you wish your vote(s) to be cast [(Note][4)] .

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----- Start of picture text ----- ORDINARY RESOLUTIONS FOR AGAINST1. “THAT:(a) the coating services and hardbanding services agreement dated 22 December 2023 and thesupplemental agreement dated 27 February 2024 referred to in the sub-section headed “2.(A) The Coating Services and Hardbanding Services Agreement and the 2024Supplementalfrom the Board”CoatingcontainedServicesin theandcircularHardbandingdated 4 ServicesMarch 2024Agreement”(the “ Circular in the”)“Letterof theCompany and the transactions contemplated thereunder and the proposed revised annualcap, be and are hereby approved, confirmed and ratified; and(b) any one or more directors of the Company be and is/are hereby authorised to do all suchacts and things and sign all such documents (under seal, if necessary) and to take all suchsteps as he/she/they consider, necessary or expedient or desirable to implement and/orgive effect to the above agreements and the transactions contemplated thereunder and theproposed revised annual cap, and to agree to such variation, amendment or waiver as are,in the opinion of the directors of the Company, in the interests of the Company.” [(Note] [5)]2. “THAT:(a) the renewed agreement dated 27 February 2024 referred to in the sub-section headed “2.(B) 2024 Welding Wire Supply Agreement” in the “Letter from the Board” contained in theCircular and the transactions contemplated thereunder and the proposed annual cap, beand are hereby approved, confirmed and ratified; and(b) any one or more directors of the Company be and is/are hereby authorised to do all suchacts and things and sign all such documents (under seal, if necessary) and to take all suchsteps as he/she/they consider, necessary or expedient or desirable to implement and/orgive effect to the above agreement and the transactions contemplated thereunder and theproposedopinion ofannualthe directorscap, andof totheagreeCompany,to suchinvariation,the interestsamendmentof the Company.”or waiver [(Note] as are, [5)] in theDated this day of 2024 Signed [(Note] [6)]Notes:1. Please insert the number of shares to which this form of proxy relates. If no number is inserted, this form of proxy will be deemed to relate to all the shares of the Companyregistered in your name(s). If more than one proxy is appointed, the number of shares in respect of which each such proxy so appointed must be specified.2. Full name(s) and address to be inserted in BLOCK CAPITALS . The names of all joint holders should be stated.3. Please insert the name and address of the proxy desired in the space provided. A shareholder of the Company who is the holder of two or more shares of the Company mayappoint more than one proxy to attend and vote on his behalf. A proxy need not be a shareholder of the Company but must attend the Meeting in person to represent you.4. IMPORTANT: IF YOU WISH TO VOTE FOR A RESOLUTION, PLEASE TICK (“ ✔ ”) THE BOX MARKED “FOR”. IF YOU WISH TO VOTE AGAINST A RESOLUTION,PLEASE TICK (“ ✔ ”) THE BOX MARKED “AGAINST”. If no direction is given, your proxy will vote or abstain at his discretion.5. For details, please refer to the circular of the Company dated 4 March 2024.6. This form of proxy must be signed by you or your attorney duly authorised in writing. In case of a corporation, the same must be either under its common seal or under thehand of an officer or attorney so authorised. ANY ALTERATION MADE TO THIS FORM OF PROXY MUST BE INITIALLED BY THE PERSON WHO SIGNS IT.7. In case of joint holders, the vote of the senior who tenders a vote, whether in person or by proxy, will be accepted to the exclusion of votes of the other joint holder(s) and forthis purpose seniority will be determined by the order in which the names stand in the register of members of the Company.8. 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 thereof, must be depositedat the Company’s Hong Kong share registrar, Computershare Hong Kong Investor Services Limited, at 17M Floor, Hopewell Centre, 183 Queen’s Road East, Wan Chai, HongKong not less than 48 hours before the time appointed for the Meeting (i.e. not later than 10:00 a.m. on Tuesday, 19 March 2024 (Hong Kong time)) or any adjournment thereof.9. Completion and delivery of this form of proxy will not preclude you from attending and voting in person at the Meeting or at any adjournment thereof if you so wish, and, insuch event, this form of proxy will be deemed to be revoked.* For identification purposes only----- End of picture text -----

PERSONAL INFORMATION COLLECTION STATEMENT

“Personal Data” in this statement has the same meaning as “personal data” defined in the Personal Data (Privacy) Ordinance, Chapter 486 of the Laws of Hong Kong (the “ PDPO ”), which includeappointmentyour ofanda proxyyour proxy’s(or proxies)nameandandyouraddress.instructionsYour supplyas statedof inyourthisandformyour(theproxy’s“ Purposes Personal”). FailureDatatoisprovideon a voluntarysufficientbasisinformationfor the purposemay resultof inprocessingthe Companyyour beingrequestunablefor theto process your instructions and/or requests as stated in this form. Your and your proxy’s Personal Data may be disclosed and transferred by the Company to its subsidiaries, affiliates, the Company’s Hong Kong share registrar, Computershare Hong Kong Investor Services Limited and/or other companies or bodies for any of the Purposes. Your and your proxy’s Personal Data will be retained for such period as may be necessary to fulfil the Purposes (including for verification and record purposes). You have the right to request access to and/or to correct your and your proxy’s Personal Data in accordance with the provisions of the PDPO. Any such request should be in writing, by mail to the Hong Kong Privacy Officer of the Share Registrar at 17M Floor, Hopewell Centre, 183 Queen’s Road East, Wan Chai, Hong Kong or by email at PrivacyOfficer@computershare.com.hk.