Karbon Capital Partners closes $345 million IPO of 34.5 million units
Karbon Capital Partners Corp., a blank check company seeking a business combination in the energy sector, closed its initial public offering of 34,500,000 units at $10.00 per unit on December 12, 2025, including the full exercise of the underwriter's over-allotment option. The company also sold 890,000 private placement units to its sponsor for $8,900,000, and appointed five new directors and amended its articles of association in connection with the offering.
Key points
- 34,500,000 units sold at $10.00 each, for gross proceeds of $345,000,000 before underwriting discounts, commissions and offering expenses
- Private placement of 890,000 units to the sponsor at $10.00 per unit, for total proceeds of $8,900,000, closed December 12, 2025
- Units began trading on Nasdaq as KBONU on December 11, 2025; Class A shares and warrants are expected to list on the NYSE as KBON and KBONW
- Citigroup was the underwriter and sole book-running manager for the offering
The filing
Written by AI on Nov 9, 2026, 11:48 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on December 12, 2025.
Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.