NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, DIRECTLY OR INDIRECTLY IN THE UNITED STATES, AUSTRALIA, CANADA, JAPAN, SOUTH AFRICA OR IN ANY OTHER JURISDICTION IN WHICH SUCH PUBLICATION OR DISTRIBUTION WOULD BE UNLAWFUL. ANY FAILURE TO COMPLY WITH THESE RESTRICTIONS MAY CONSTITUTE A VIOLATION OF APPLICABLE SECURITIES LAWS. PLEASE SEE THE SECTION ENTITLED "IMPORTANT INFORMATION" TOWARDS THE END OF THIS ANNOUNCEMENT.

October 7, 2022

ACG Acquisition Company Limited

Initial Public Offering on the London Stock Exchange

ACG Acquisition Company Limited (the "Company" or "ACG"), a special purpose acquisition company ("SPAC") aiming to benefit from favourable price conditions for new economy metals and other mining materials, is pleased to announce the results of its initial public offering and standard listing on the London Stock Exchange's Main Market ("Offering").

The Company will raise $125 million through the offering of 12,500,000 Class A Ordinary Shares of no par value (together with ½ of a redeemable Warrant per Class A Ordinary Share) at a price of $10.00 per Class A Ordinary Share.

Conditional dealing in the Class A Ordinary Shares is expected to commence at 8.00 a.m. on 7 October 2022 under ticker symbol "ACG". It is expected that unconditional dealings in the Class A Ordinary Shares and Warrants will commence on the completion of the Offering and the admission of the Class A Ordinary Shares and Warrants to trading ("Admission") at 8.00 a.m. on 12 October 2022. Dealings in the Warrants will be under ticker symbol "ACGW".

Citigroup Global Markets Limited ("Citigroup") is acting as the Sole Global Coordinator and Bookrunner in connection with the Offering.

For further information please contact:

Citigroup                                                        +44 20 7986 4000

Sole Global Coordinator and Bookrunner

Palatine                                                          acg@palatine-media.com

Communications Advisor

Conal Walsh / Andreas Grueter / Richard Seed / Kelsey Traynor

About the Company

ACG Acquisition Company is a SPAC looking to benefit from favourable price conditions for new economy metals and other mining materials.

The Company's co-sponsors are (1) ACG Mining Limited, a BVI business firm whose main shareholder is Artem Volynets, (2) De Heerd Investments Limited, a Hong Kong-based asset manager with an extensive track-record of global investments and (3) a trading entity managed by Argentem Creek Partners LP, an emerging markets specialist firm investing in special situations, private credit, high yield, and trade finance.

The Company aims to optimise its expertise in global mining by combining with a mining company that produces materials characterised by supply constraints and rising long-term demand. The combined entity will capitalise on the need for resource security and geographic supply diversification, as well as the global energy transition.

ACG's team has extensive M&A experience built through decades spent at blue-chip multinationals in the sector. The team brings a significant network, including access to many mining companies as well as a commitment to ESG principles and strong corporate governance.

www.acgcorp.co

***IMPORTANT NOTICE***

This communication is not a prospectus but an advertisement for purposes of the Prospectus Regulation Rules of the Financial Conduct Authority. Investors should not subscribe for any transferable securities referred to in the advertisement, except on the basis of information in the Prospectus; when approved and published, this will be available on www.acgcorp.co.

This announcement is not for publication or distribution, directly or indirectly, in or into Australia, Canada, Japan or the United States or any other jurisdiction where to do so would constitute a violation of the relevant laws of such jurisdiction. The distribution of this announcement may be restricted by law in certain jurisdictions and persons into whose possession any document or other information referred to herein comes should inform themselves about and observe any such restriction. Any failure to comply with these restrictions may constitute a violation of the securities laws of any such jurisdiction.

These materials are not an offer for sale of securities in the United States. The securities referred to herein have not been and will not be registered under the U.S. Securities Act of 1933, as amended (the "Securities Act"), or with any securities regulatory authority of any state or other jurisdiction of the United States, and may not be offered, sold, resold, pledged, delivered, assigned or otherwise transferred, directly or indirectly, within the United States except pursuant to an effective registration statement under the Securities Act or an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act, in each case in accordance with any applicable securities laws of any state of the United States. There has been and will be no public offering of the securities in the United States.

This announcement does not constitute an offer of securities to the public in any member state of the European Economic Area (the "EEA") (each a "Member State"), no action has been undertaken or will be undertaken to make an offer to the public of Securities requiring publication of a prospectus in any Member State. This announcement is only addressed to and is only directed at persons in Member States who are "qualified investors" ("Qualified Investors") within the meaning of Article 2(e) of Regulation (EU) 2017/1129 (such Regulation, together with any applicable implementing measures in the relevant home Member State under such Regulation, the "Prospectus Regulation"). This announcement and the information contained herein must not be acted on or relied upon in any Member State by persons who are not Qualified Investors. Any investment or investment activity to which this announcement relates is only available to, and any invitation, offer or agreement to purchase, subscribe or otherwise acquire the same will be engaged in only with, Qualified Investors. For the purpose of this paragraph, the expression "offer of securities to the public" means the communication in any form and by any means of sufficient information on the terms of the offer and the Securities to be offered so as to enable the investor to decide to purchase or subscribe for the Securities and the expression "Prospectus Regulation" means Regulation (EU) 2017/1129 and includes any amendments and relevant delegated regulations thereto.

In the United Kingdom, this announcement is only addressed to and directed at persons in the United Kingdom who are "qualified investors" within the meaning of Article 2(e) of Regulation (EU) 2017/1129, as amended, as it forms part of retained EU law by virtue of the European Union (Withdrawal) Act 2018 (the "U.K. Prospectus Regulation"). In addition, this announcement is being distributed to, and is only directed at, qualified investors (i) who have professional experience in matters relating to investments falling within the definition of "investment professionals" in Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, as amended (the "FPO"), (ii) who fall within Article 49(2)(a) to (d) of the FPO or (iii) to whom it may otherwise lawfully be communicated (all such persons, together with "qualified investors" within the meaning of Article 2(e) of the U.K. Prospectus Regulation, being referred to as "Relevant Persons"). This announcement and the information contained herein must not be acted on or relied upon in the United Kingdom, by persons who are not Relevant Persons. Any investment or investment activity to which this announcement relates is available only to, and any invitation, offer or agreement to subscribe, purchase or otherwise acquire the same will be engaged in only with, Relevant Persons.

Securities of the Company have not been and will not be registered under the applicable securities laws of Australia, Canada or Japan and, subject to certain exceptions, may not be offered or sold within Australia, Canada or Japan except under circumstances which will result in the full compliance with the applicable laws and regulations promulgated by the relevant regulatory authorities in effect at the relevant time.

The information contained in this announcement is for background purposes only and does not purport to be full or complete. No reliance may be placed by any person for any purpose on the information contained in this announcement or its accuracy, fairness or completeness. Each of the Company and Citigroup Global Markets Limited and their respective affiliates expressly disclaims any obligation or undertaking to update, review or revise any forward-looking statement contained in this announcement whether as a result of new information, future developments or otherwise.

Any subscription or purchase of securities in connection with the Offering should be made solely on the basis of information contained in the prospectus prepared by the Company in connection with the Offering. The information in this announcement is subject to change. Before subscribing for or purchasing any securities, persons viewing this announcement should ensure that they fully understand and accept the risks which will be set out in the aforementioned prospectus if published. No reliance may be placed for any purpose on the information contained in this announcement or its accuracy or completeness. This announcement shall not form the basis of or constitute any offer or invitation to sell or issue, or any solicitation of any offer to purchase or subscribe for any securities nor shall it (or any part of it) or the fact of its distribution, form the basis of, or be relied on in connection with, any contract therefor. You should not base any financial decision on this announcement. Acquiring investments to which this announcement relates may expose an investor to a significant risk of losing all of the amount invested.

None of Citigroup Global Markets Limited or any of its respective affiliates or any of its or its affiliates' directors, officers, employees, advisers or agents accepts any responsibility or liability whatsoever for/or makes any representation or warranty, express or implied, as to the truth, accuracy or completeness of the information in this announcement (or whether any information has been omitted from the announcement) or any other information relating to the Company. Citigroup Global Markets Limited is acting exclusively for the Company and no one else in connection with the Offering and will not regard any other person as its client in relation to the Offering and will not be responsible to anyone other than the Company for providing the protections afforded to their respective clients, nor for providing advice in relation to the Offering, the contents of this announcement or any transaction, arrangement or other matter referred to herein.

Citigroup Global Markets Limited is authorised by the Prudential Regulation Authority ("PRA") and regulated in the UK by the Financial Conduct Authority ("FCA") and the PRA.

Forward-looking statements

Some of the information in these materials may contain projections or other forward-looking statements regarding future events or the future financial performance of the Group. You can identify forward looking statements by terms such as "expect", "believe", "anticipate", "estimate", "intend", "will", "could", "may" or "might" the negative of such terms or other similar expressions. The Group wishes to caution you that these statements are only predictions and that actual events or results may and often do differ materially. The Group does not intend to update these statements to reflect events and circumstances occurring after the date hereof or to reflect the occurrence of unanticipated events. Any forward-looking statements reflect the Company's current view with respect to future events and many factors could cause the actual results to differ materially from those contained in projections or forward-looking statements of the Group, including, among others, general economic conditions, the competitive environment, rapid technological and market change in the industries the Group operates in, as well as many other risks specifically related to the Group and its operations. Forward-looking statements speak only as of the date they are made.