Crown PropTech Acquisitions 10-Q

Item 5. Other Information Rule 10b5-1 Trading Plans During the quarter ended March 31, 2026, none of the Company’s directors or officers adopted or terminated any contract, instruction or written plan for the purchase or sale of Company securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) or any “non-Rule 10b5-1 trading arrangement.” 28 Item 6. Exhibits. Exhibit Number Description 2.1† Amendment No. 1 to Business Combination Agreement, dated as of February 13, 2026, by and among CPTK and Mkango Rare Earths Limited (incorporated by reference to Exhibit 2.1 to the Current Report on Form 8-K filed on February 10, 2026 (file no. 001-40017). 3.1 Sixth Amended and Restated Memorandum and Articles of Association of Crown PropTech Acquisitions (incorporated by reference to Exhibit 3.1 to the Current Report on Form 8-K filed on March 9, 2026 (file no. 001-40017) 10.1 Third Amended and Restated Promissory Note, dated February 10, 2026, issued by CPTK to Richard Chera (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on February 10, 2026 (file no. 001-40017). 10.2 Form of Non-Redemption Agreement and Assignment of Economic Interest (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on March 5, 2026 (file no. 001-40017). 31.1* Certification of Chief Executive Officer (Principal Executive Officer and Principal Financial Officer) Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. 32.1** Certification of Chief Executive Officer (Principal Executive Officer and Principal Financial Officer) Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. 101.SCH Inline XBRL Taxonomy Extension Schema Document 101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase Document 101.DEF Inline XBRL Taxonomy Extension Definition Linkbase Document 101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document 101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document 104 Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101) * Filed herewith. ** These certifications are furnished to the SEC pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and are deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall they be deemed incorporated by reference in any filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference in such filing. † Schedules omitted pursuant to Item 601(b)(2) of Regulation S-K. Registrant agrees to furnish supplementally a copy of any omitted schedule to the Securities and Exchange Commission upon request. 29 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. CROWN PROPTECH ACQUISITIONS Date: May 18, 2026 By: /s/ Michael Minnick Name: Michael Minnick Title: Chief Executive Officer (Principal Executive Officer) 30