Crown PropTech Acquisitions filed a current report on November 6, 2026, disclosing that the SEC declared its Form F-4 registration statement effective on November 4, 2026, and that mailing of the definitive proxy statement and prospectus to shareholders commenced on November 5, 2026, in connection with its proposed business combination with Mkango Rare Earths Limited.

Key Highlights

  • SEC effectiveness: The registration statement on Form F-4 (File No. 333-296089), filed by MKAR and Crown PropTech Acquisitions, was declared effective by the SEC on November 4, 2026.
  • Proxy mailing launched: Crown PropTech Acquisitions commenced mailing the definitive proxy statement/prospectus on November 5, 2026, according to the filing.
  • Amended agreement in place: An Amended and Restated Business Combination Agreement was entered into on September 2, 2026, by SPAC, MKAR, MKA Poland, and Merger Sub, superseding the original agreement dated July 2, 2025.
  • Original registration filed May 2026: The registration statement was originally filed on May 20, 2026, and was subsequently amended before receiving SEC effectiveness.
  • Warrant securities registered: Crown PropTech Acquisitions lists its redeemable warrants under the trading symbol CPTKW, with each whole warrant exercisable for one Class A ordinary share at a par value of $0.0001.
  • Emerging growth company: The filing confirms Crown PropTech Acquisitions is classified as an emerging growth company under applicable SEC rules.

Crown PropTech and Mkango Rare Earths Advance Toward Business Combination Closing

Crown PropTech Acquisitions, an exempted company incorporated under the laws of the Cayman Islands with principal offices at 40 West 57th Street, 29th Floor, New York, NY 10019, filed this current report to disclose the SEC's effectiveness declaration for the Form F-4 registration statement tied to its proposed transaction with Mkango Rare Earths Limited, formerly known as Lancaster Exploration Limited and organized under the laws of the British Virgin Islands. According to the filing, Mkango Rare Earths is a direct, wholly owned subsidiary of Mkango Magnetic Materials Limited, formerly Mkango Resources Ltd., a company organized under the laws of British Columbia, Canada.

The filing states that the Registration Statement, bearing File No. 333-296089, was originally submitted on May 20, 2026, and contains both a proxy statement from Crown PropTech Acquisitions and a prospectus from MKAR. The parties to the Business Combination Agreement include SPAC, MKAR, MKA Poland (a Polish subsidiary of Mkango), and Merger Sub (a Cayman Islands subsidiary of MKAR). The filing also notes that the forward-looking statements contained in the current report include references to the expected listing of MKAR's common shares and warrants on the Nasdaq Stock Market and development activities related to the Songwe Hill and Pulawy projects, among other matters, all of which the filing identifies as the company's own statements subject to its cautionary risk language.

The filing identifies several risk factors as described by the company, including the possibility that the proposed business combination may not be completed in a timely manner, that the minimum cash threshold following shareholder redemptions may not be satisfied, and that MKAR may not meet Nasdaq listing requirements. These characterizations are the registrant's own disclosures and are subject to its stated cautionary language regarding forward-looking statements.

What Was Disclosed

Crown PropTech Acquisitions reported via an 8-K current report that the SEC declared its Form F-4 registration statement effective on November 4, 2026, and that the definitive proxy statement/prospectus mailing to shareholders began on November 5, 2026, in connection with the Mkango Rare Earths business combination.