---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-016858"
form_type: "8-K"
ticker: "CPTKW"
cik: "0001827899"
company_name: "Crown PropTech Acquisitions"
filed_at: "2026-02-17T23:59:59+00:00"
generated_at: "2026-05-16T02:31:09.557893+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Crown PropTech and Mkango extend merger deadline to Sept 30, 2026, file draft F-4

## Summary
- Outside Date extended from March 11, 2026 to Sept 30, 2026; auto-extends to Dec 31, 2026 if SEC not effective by Aug 14.
- MKAR confidentially submitted draft registration statement on Form F-4 to SEC on Feb 13, 2026 for the business combination.
- Third A&R Note (Richard Chera) extends maturity from Feb 11, 2026 to Dec 31, 2026; principal up to $1,000,000.
- NPA F-4 Note Investor funded remaining $250,000 on Feb 13, 2026 in exchange for convertible promissory note from MKAR.

## SEC filing metadata
- accession: 0001213900-26-016858
- form_type: 8-K
- ticker: CPTKW
- cik: 0001827899
- company_name: Crown PropTech Acquisitions
- filed_at: 2026-02-17T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1827899/000121390026016858/0001213900-26-016858-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1827899/000121390026016858/ea0276072-8k425_crown.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-016858
- JSON: https://secwatch.observer/filing/0001213900-26-016858.json
- Plain text: https://secwatch.observer/filing/0001213900-26-016858.txt

## Key facts
- Material Agreements
  Crown PropTech Acquisitions amended Amendment No. 1 to the Business Combination Agreement with Mkango Rare Earths Limited (effective 2026-02-13).
  - Action: amendment
  - Agreement: merger
  - Counterparty: Mkango Rare Earths Limited
  - Effective: 2026-02-13
  source text: On February 13, 2026, SPAC and MKAR entered into Amendment No. 1 to the Business Combination Agreement ("Amendment No. 1").
  evidence_url: https://www.sec.gov/Archives/edgar/data/1827899/000121390026016858/0001213900-26-016858-index.htm
- Material Agreements
  Crown PropTech Acquisitions amended Third A&R Note with Richard Chera valued at aggregate principal amount of up to $1,000,000 (effective 2026-02-10).
  - Action: amendment
  - Agreement: notes offering
  - Counterparty: Richard Chera
  - Value: aggregate principal amount of up to $1,000,000
  - Effective: 2026-02-10
  source text: On February 10, 2026, the Second A&R Note was amended to replace "February 11, 2026" with December 31, 2026 (the "Third A&R Note").
  evidence_url: https://www.sec.gov/Archives/edgar/data/1827899/000121390026016858/0001213900-26-016858-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.