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Mkango Resources Ltd. Announces Filing of Amended Form F-4 BY Mkango Rare Earths

Corporate Updates

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THIS NEWS RELEASE IS NOT FOR DISTRIBUTION, DIRECTLY OR INDIRECTLY, IN OR INTO THE UNITED STATES

(INCLUDING ITS TERRITORIES AND POSSESSIONS, ANY STATE OF THE UNITED STATES OR THE DISTRICT OF

COLUMBIA), OR ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A V IOLATION OF THE RELEVANT

LAWS OF SUCH JURISDICTION.

MKANGO RESOURCES LTD.

550 Burrard Street

Suite 2900

Vancouver

BC V6C 0A3

Canada

MKANGO RESOURCES LTD. ANNOUNCES FILING OF AMENDED FORM F-4 BY MKANGO RARE EARTHS

LIMITED, NON-REDEMPTION AGREEMENTS WITH FUNDS MANAGED BY BLACKROCK, AND AMENDED AND

RESTATED BUSINESS COMBINATION AGREEMENT

London / Vancouver: 3 September 2026 - Mkango Resources Ltd. (AIM:MKA)(TSXV:MKA) (“Mkango”) announces

that its wholly-owned subsidiary, Mkango Rare Earths Limited (f/k/a Lancaster Exploration Limited) (“MKAR”), filed an

amendment to its registration statement on Form F-4 (the “Amended Form F-4”) with the United States Securities and

Exchange Commission (the “SEC”) on September 3, 2026, in connection with the proposed business combination

between MKAR and Crown PropTech Acquisitions (OTC: CPTKW) (“CPTK”) (the “Proposed Business Combination”),

initially announced on July 3, 2025. In addition, CPTK and its sponsor have entered into non-redemption agreements

with certain funds and accounts managed by subsidiaries of BlackRock, Inc. in respect of 400,000 CPTK public shares,

and MKAR has entered into an Amended and Restated Business Combination Agreement.

Highlights

● MKAR filed the Amended Form F-4 with the SEC on September 3, 2026. On closing, MKAR’s common shares and

warrants are expected to list on Nasdaq under “MKAR” and “MKARW”.

● CPTK and its sponsor entered into eight non-redemption agreements with certain funds and accounts managed

by subsidiaries of BlackRock, Inc. in respect of 400,000 CPTK public shares, anticipated to retain at least US$4.8

million in CPTK’s trust account and to substantially contribute toward the US$5 million minimum cash condition.

● MKAR entered into an Amended and Restated Business Combination Agreement, consolidating the prior

amendments to the business combination agreement dated July 2, 2025 and amending certain other terms.

Material economic terms are unchanged.

Filing of the Amended Form F-4

The Amended Form F-4 comprises a preliminary proxy statement of CPTK and a preliminary prospectus of MKAR in

respect of the common shares and warrants to be issued in the Proposed Business Combination, and reflects the terms

of the Amended and Restated Business Combination Agreement described below. A copy of the Amended Form F -4

is available on MKAR’s profile on EDGAR www.sec.gov and will be filed later today under Mkango’s profile on SEDAR+

at www.sedarplus.ca. The Amended Form F -4 has not yet been declared effective by the SEC and the information it

contains is subject to completion or amendment. Subject to completion of the SEC review process and satisfaction of

customary closing conditions, including approva l by CPTK’s shareholders, MKAR’s common shares and warrants are

expected to list on Nasdaq under the symbols “MKAR” and “MKARW” on closing.

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The Amended Form F-4 has not been reviewed or approved by any Canadian or United Kingdom regulatory authority,

does not constitute a prospectus under Canadian or United Kingdom securities laws, and does not constitute an offer

of securities in those jurisd ictions. The content of the Amended Form F -4 has not been approved by an authorised

person within the meaning of the United Kingdom Financial Services and Markets Act 2000. Technical and scientific

information in the Amended Form F -4 has been prepared in accordance with Regulation S -K under United States

securities laws, which differs from Canadian National Instrument 43-101. Canadian readers are referred to Mkango’s

Updated Technical Report on the Songwe Hill Rare Earth Element Project in Malawi, filed on SEDAR+ on April 30, 2026.

Non-Redemption Agreements with Funds Managed by BlackRock

On September 2, 2026, CPTK and CIIG Management III LLC (“CIIG Management”), CPTK’s sponsor, entered into eight

non-redemption agreements (the “BCA Vote Non -Redemption Agreements”) with certain funds and accounts

managed by subsidiaries of BlackRock, Inc. (the “Investors”), pursuant to which the Investors have agreed to hold and

not redeem 400,000 CPTK public shares at the extraordinary general meeting to be held to consider the proposals

relating to the Proposed Business Combination (the “Extraordinary General Meeting”).

In exchange, CPTK and MKAR will modify the transfer restrictions applicable to the assigned securities to be held by

the Investors, estimated to be at least 510,000 founder shares as of September 2, 2026, upon closing. The existing

one-year transfer restriction (or such earlier time if the trading price exceeds US$12.00 per share for any 20 trading

days within any 30 -trading day period commencing at least 150 days after the initial business combination) will be

replaced with a 180 -day transfer restriction ( or such earlier time if that price condition is met over a period

commencing at least 90 days after the initial business combination). In connection with CIIG Management’s obligation

to offer the shortened restriction to investors who previously executed n on-redemption agreements, at least an

additional 1,754,161 founder shares will be eligible for such shortened restriction.

Based on the amount held in CPTK’s trust account as of July 31, 2026, the anticipated per -share liquidation price for

CPTK’s public shares is approximately US$12.01, such that at least US$4.8 million is anticipated to be retained in the

trust account. The BCA Vote Non -Redemption Agreements are not expected to increase the likelihood that the

proposals relating to the Proposed Business Combination are approved, but are expected to increase the funds

remaining in CPTK’s trust account following the Extraordina ry General Meeting and substantially contribute toward

the US$5 million minimum cash condition under the Amended and Restated Business Combination Agreement.

Information in this news release concerning CPTK, its trust account, its sponsor, the founder shares and the BCA Vote

Non-Redemption Agreements has been provided to Mkango by CPTK and has not been independently verified by

Mkango or MKAR. Mkango is not a party to the BCA Vote Non-Redemption Agreements.

Amended and Restated Business Combination Agreement

On September 2, 2026, CPTK, MKAR, certain wholly -owned subsidiaries of Mkango and Mkango (Cayman) Limited

entered into an Amended and Restated Business Combination Agreement, which amends and restates in its entirety

the business combination agreement date d July 2, 2025, as amended on February 13, 2026 and May 20, 2026. It

consolidates the changes effected by the prior amendments and clarifies that the Mkango BVI share reclassification is

to occur following the effectuation of the share adjustment and the i ssuance of the consideration shares and the

advisor compensation shares. The material economic terms of the Proposed Business Combination are unchanged.

CPTK, CIIG Management and MKAR also entered into Amendment No. 1 to the Sponsor Support Agreement on the

same date, making conforming changes to reflect MKAR’s name change, removing certain Mkango affiliates, and

clarifying that only founder shares held by CIIG Management that are not subject to non-redemption agreements may

be placed into escrow at closing if certain conditions are not met. The Sponsor Support Agreement will terminate at

closing if available gross CPTK cash immediately prior to closing is at least US$10 million.

Copies of the Amended and Restated Business Combination Agreement and Amendment No. 1 to the Sponsor Support

Agreement have been filed as exhibits to the Amended Form F -4 on MKAR’s profile on EDGAR at www.sec.gov and

will be filed later today under Mkango’s profile on SEDAR+ at www.sedarplus.ca.

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Alexander Lemon, President of Mkango, commented: “The filing of the Amended Form F -4, together with the non -

redemption agreements entered into with funds managed by BlackRock and the amended and restated business

combination agreement, represents a significant milestone in the process toward completion of the Proposed Business

Combination and the expected listing of MKAR on Nasdaq. This progress further reinforces Mkango's position as a

significant future producer within the global rare earth supply chain, underpinned by a firm commitment to

sustainability amid growing industry demand.”

About Mkango Resources Ltd.

Mkango is listed on the AIM market of the London Stock Exchange and on the TSX Venture Exchange (the “TSX -V”).

Mkango’s corporate strategy is to become a market leader in the production of recycled rare earth magnets, alloys

and oxides, through its 79.4% o wned subsidiary Maginito Limited (“Maginito”), in which CoTec Holdings Corp.

(“CoTec”) holds a 20.6% interest, and its 100% interest in Remloy, to develop new sustainable primary sources of

neodymium, praseodymium, dysprosium and terbium to supply the growing market for electric vehicles, wind turbines

and other clean energy technologies.

Maginito owns 100% of HyProMag Limited and a 90% direct and indirect interest in HyProMag GmbH, both focused

on short loop rare earth magnet recycling in the UK and Germany, and 100% of Mkango Rare Earths UK Ltd (“Mkango

UK”), focused on long loop rare earth magnet recycling via a chemical route.

Maginito and CoTec jointly own HyProMag USA LLC, a 50/50 joint venture focused on the roll out of the recycling

technology in the United States.

Remloy has developed a plant in Bitterfeld, Germany, which recycles end -of-life rare earth magnets via a melting

process (medium loop rare earth magnet recycling) to produce neodymium -iron-boron (“NdFeB”) alloy powders for

the bonded and hot deformed magne t markets, complementary to HyProMag’s short loop recycling process, to

produce sintered magnets, and to Mkango UK’s long loop recycling process, to produce mixed rare earth carbonates

and oxides.

Mkango owns 100% of MKAR, which owns the advanced stage Songwe Hill rare earths project in Malawi and

associated uranium, tantalum and niobium exploration licences, as well as the proposed Pulawy rare earths separation

project in Poland. The Pulawy project is located in a Special Economic Zone adjacent to the European Union’s second

largest nitrogen fertilizer manufacturer and benefits from established infrastructure and on site access to reagents

and utilities. Both projects have been selected as Strategic Projects under the European Union Critical Raw Materials

Act.

For further information, please visit www.mkango.ca.

About Crown PropTech Acquisitions

CPTK is a Cayman Islands exempted company incorporated in 2021 as a special purpose acquisition company for the

purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business

combination with one or more businesses. For further information, visit www.crownproptech.com.

Market Abuse Regulation Disclosure

This news release contains inside information for the purposes of Article 7 of the Market Abuse Regulation (EU) No.

596/2014 as it forms part of United Kingdom domestic law by virtue of the European Union (Withdrawal) Act 2018,

as amended. Upon publication of this news release via a Regulatory Information Service, such inside information will

be considered to be in the public domain.

Cautionary Note Regarding Forward-Looking Statements

This news release contains forward-looking statements and forward-looking information (within the meaning of

those terms under applicable securities laws) with respect to Mkango, MKAR and CPTK, generally identifiable by

words such as “plans”, “expects”, “estimates”, “intends”, “anticipates”, “believes”, “may”, “could”, “should”,

“would” or “will”, or the negative connotations thereof.

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Forward-looking statements in this news release include, without limitation, statements regarding: the effectiveness

of the Amended Form F-4 and the timing of the SEC review process; the holding of the Extraordinary General

Meeting and approval of the proposals relating to the Proposed Business Combination; performance by the

Investors of their obligations under the BCA Vote Non-Redemption Agreements and the number of CPTK public

shares held and not redeemed; the anticipated per-share liquidation price and the amount anticipated to be

retained in CPTK’s trust account; the expectation that the BCA Vote Non-Redemption Agreements will contribute

substantially toward the minimum cash condition; the number of founder shares anticipated to become eligible for,

and the modification upon closing of, the transfer restrictions; the termination of the Sponsor Support Agreement at

closing; the expected listing of MKAR’s common shares and warrants on Nasdaq; the expected timing and

completion of the Proposed Business Combination; and the statements in the “About” sections regarding the

development of Songwe Hill and Pulawy, their status as Strategic Projects under the European Union Critical Raw

Materials Act, the expansion of rare earth magnet recycling and magnet manufacturing operations in the United

Kingdom, Germany and the United States, and the Remloy plant at Bitterfeld, Germany, including the

complementarity of the Remloy, HyProMag and Mkango UK recycling processes.

In making these statements, Mkango, MKAR and CPTK have applied material assumptions including: that the

amount held in CPTK’s trust account as at July 31, 2026, and the resulting anticipated per-share liquidation price of

approximately US$12.01, are indicative of the amounts held and payable in respect of redemptions at the time of

the Extraordinary General Meeting; that the Investors will perform their obligations under the BCA Vote Non-

Redemption Agreements and will not redeem the 400,000 CPTK public shares subject to them; that the founder

share numbers estimated as at September 2, 2026 will not differ materially at closing; that the SEC will complete its

review and declare the Amended Form F-4 effective; that required shareholder, stock exchange, regulatory and

other third party approvals will be obtained; that the conditions precedent to closing, including the minimum cash

condition, will be satisfied or waived; that no event will occur giving rise to a right of termination under the

Amended and Restated Business Combination Agreement; and that the information provided to Mkango by CPTK

regarding CPTK, its trust account, its sponsor, the founder shares and the BCA Vote Non-Redemption Agreements is

accurate and complete. Actual results may vary materially if these assumptions prove incorrect.

Readers are cautioned not to place undue reliance on forward-looking statements. Factors and risks that could cause

actual results to differ materially include, without limitation: the failure to complete the Proposed Business

Combination on the terms or within the timeframe contemplated, or at all, or by CPTK’s business combination

deadline, and the failure to obtain any extension of that deadline; the failure to satisfy or obtain waiver of the

conditions precedent to closing, including approval by Mkango and CPTK’s shareholders, satisfaction of the

minimum cash condition following redemptions, and receipt of required governmental, regulatory, stock exchange,

court and other third party approvals; the Amended Form F-4 not being declared effective; the failure of any party

to perform its obligations under the BCA Vote Non-Redemption Agreements; the level of redemptions by CPTK’s

public shareholders and the cash available on closing; the inability to obtain additional financing on favourable

terms, in an amount sufficient to satisfy the minimum cash condition, or at all; the exercise of termination rights

under the Amended and Restated Business Combination Agreement; the failure to obtain approval for listing on

Nasdaq or to maintain the quotation of CPTK’s securities on the OTC Markets; volatility in the price of MKAR’s

securities; market risks, including the price of rare earth materials; the effect of the announcement or pendency of

the Proposed Business Combination on business relationships and performance; litigation, regulatory proceedings or

shareholder actions arising in connection with the Proposed Business Combination; the consequences of the

Proposed Business Combination for Mkango’s interests in Songwe Hill and Pulawy and for Mkango’s status on AIM

and the TSX-V; and the anticipated benefits of the Proposed Business Combination not being realised in whole or in

part.

Further factors include: the availability of (or delays in obtaining) financing to develop Songwe Hill and Pulawy and

the recycling plants being developed by Maginito in the United Kingdom, Germany and the United States; the

drawdown and continued availability of the reimbursable Development Funding awarded by the U.S. International

Development Finance Corporation, including changes in United States government policy or funding priorities; the

retention of Strategic Project status under the European Union Critical Raw Materials Act; governmental action and

other market effects on global demand and pricing for rare earths; geological, technical, permitting and regulatory

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matters relating to the development of Songwe Hill and Pulawy; political, fiscal, legal, taxation, currency and other

risks associated with operating in Malawi, Poland, Germany, the United Kingdom and the United States, and

geopolitical impacts on markets and tariffs; the ability to scale the HPMS and chemical recycling technologies to

commercial scale; competition and the availability of scrap supplies and other feedstock for Maginito’s and Remloy’s

recycling activities; the integration of Remloy into the Mkango group and the realisation of the anticipated

synergies; cost overruns, operational hazards and complexities in building and operating the plants; and the results

of feasibility studies being less favourable than anticipated.

The foregoing list is not exhaustive. Readers should also consider the risks described in CPTK’s filings with the SEC,

Mkango’s filings on SEDAR+, and the Amended Form F-4. The forward-looking statements in this news release are

made as of the date hereof and, except as required by applicable law, none of Mkango, MKAR or CPTK undertakes

any obligation to update or revise them, or to comment on the expectations of, or statements made by, third parties

in respect of the matters discussed above.

Important Information for Investors and Shareholders

In connection with the Proposed Business Combination, MKAR and CPTK have filed the Amended Form F-4 with the

SEC, including a preliminary proxy statement of CPTK and a preliminary prospectus of MKAR with respect to the

securities to be offered in the Proposed Business Combination, a copy of which has also been filed under Mkango’s

profile on SEDAR+. After the Amended Form F-4 is declared effective, CPTK will mail a definitive proxy

statement/prospectus to its shareholders as of a record date to be established for voting on the Proposed Business

Combination. CPTK urges investors and other interested persons to read, when available, the proxy

statement/prospectus, as well as other documents filed with the SEC, because these documents will contain

important information about the Proposed Business Combination. Such persons can also read CPTK’s filings with the

SEC for a description of the security holdings of its officers and directors and their respective interests as security

holders in the consummation of the transactions described herein. The proxy statement/prospectus, once available,

can be obtained, without charge, at www.sec.gov and under Mkango’s profile on SEDAR+ at www.sedarplus.ca. In

addition, the documents filed by CPTK may be obtained free of charge by directing a request to CPTK c/o Michael

Minnick, Chief Executive Officer, 40 West 57th Street, 29th Floor, New York, NY 10019, or by telephone at (212) 796-

4796.

Participants in the Solicitation

MKAR and CPTK and their respective directors, executive officers and other members of their management and

employees, under SEC rules, may be deemed to be participants in the solicitation of proxies of CPTK’s shareholders

in connection with the Proposed Business Combination. Investors and security holders may obtain more detailed

information regarding the names, affiliations and interests of CPTK’s directors and officers in CPTK’s SEC filings.

Information regarding the persons who may, under SEC rules, be deemed participants in the solicitation of proxies to

CPTK’s shareholders in connection with the Proposed Business Combination will be set forth in the proxy

statement/prospectus for the Proposed Business Combination when available. Information concerning the interests

of MKAR’s and CPTK’s participants in the solicitation, which may, in some cases, be different than those of their

respective equityholders generally, will be set forth in the proxy statement/prospectus relating to the Proposed

Business Combination when it becomes available.

No Offer or Solicitation

This news release shall not constitute a solicitation of a proxy, consent, or authorization with respect to any

securities or in respect of the Proposed Business Combination. This news release shall also not constitute an offer to

sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any states or

jurisdictions in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under

the securities laws of any such jurisdiction. No offering of securities shall be made except by means of a prospectus

meeting the requirements of Section 10 of the Securities Act of 1933, as amended, or an exemption therefrom.

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For further information on Mkango, please contact:

Mkango Resources Ltd.

Alexander Lemon William Dawes

President Chief Executive Officer

[email protected] [email protected]

UK: +44 20 7372 2744

www.mkango.ca

@MkangoResources

SP Angel Corporate Finance LLP

Nominated Adviser and Joint Broker

Caroline Rowe, Jen Clarke, Devik Mehta

UK: +44 20 3470 0470

Cavendish Capital Markets Limited

Joint Broker

Neil McDonald, Pearl Kellie

UK: +44 20 7330 0500

H&P Advisory Limited

Joint Broker

Andrew Chubb, Leif Powis

UK: +44 20 7907 8500

Cohen Capital

Strategic and Financial

Adviser Brandon Sun

USA: +1 929 432 1254

Welsbach Corporate Solutions LLC-FZ

Supply Chain Advisor and Financial and Capital Markets Advisor

Daniel Mamadou

SG: +65 6879 7107

For further information on CPTK, please contact:

Crown PropTech Acquisitions

Michael Minnick, Chief Executive Officer — [email protected]

USA: (212) 796-4796 | www.crownproptech.com

Disclaimer

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies

of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release. The

TSX Venture Exchange has neither approved nor disapproved the contents of this news release.

This news release shall not constitute an offer to sell, or a solicitation of an offer to buy, or a

recommendation to purchase, any securities in any jurisdiction, or the solicitation of any vote, consent or

approval in any jurisdiction in connection with the Proposed Business Combination, nor shall there be any

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sale, issuance or transfer of any securities in any jurisdiction where, or to any person to whom, such offer,

solicitation or sale may be unlawful. This news release does not constitute either advice or a

recommendation regarding any securities.