Mkango Rare Earths Limited, a subsidiary of Mkango Resources, filed an amended registration statement on Form F-4 with the U.S. Securities and Exchange Commission to advance its proposed business combination with Crown PropTech Acquisitions (CPTK).
The filing consolidates amendments made in February and May 2026, maintaining the material economic terms of the transaction while updating governance and shareholder structure details. The business combination was initially announced on July 3, 2025.
As part of the restated agreement, CPTK and its sponsor entered into eight non-redemption agreements with funds and accounts managed by subsidiaries of BlackRock on September 2, 2026. These agreements cover 400,000 CPTK public shares and require a minimum $4.8 million to be retained in the trust account as of July 31, 2026. In exchange, transfer restrictions on founder shares held by investors have been shortened from one year to 180 days.
Mkango also disclosed that an additional 1,754,161 founder shares will become eligible for a shortened restriction period following the transaction. Upon closing, the combined entity’s common shares and warrants are expected to list on Nasdaq under the symbols MKAR and MKARW, subject to SEC review and CPTK shareholder approval.
The amended Form F-4 remains pending effectiveness from the SEC. Mkango’s assets include the Songwe Hill rare earths project in Malawi, the Pulawy rare earths separation project in Poland, and a 79.4% stake in Maginito Limited, a rare earth magnet recycler.
