Karbon Capital Partners closes $345 million IPO and places proceeds in trust account
On December 12, 2025, Karbon Capital Partners Corp., a blank check company with no operations, completed its initial public offering of 34,500,000 units at $10.00 each, generating $345 million in gross proceeds. The full $345 million was placed in a trust account with Continental Stock Transfer & Trust Company as trustee, and the company cannot withdraw the principal except for limited tax and dissolution expenses until a business combination or redemption occurs. For shareholders, the capital is held in trust with no target company yet selected, and the company must complete a business combination within 24 months (or 27 months if a letter of intent is signed) or redeem public shares.
Key points
- IPO of 34,500,000 units at $10.00 per unit closed on December 12, 2025, including 4,500,000 units from the full exercise of the underwriters' over-allotment option.
- Sponsor Karbon Capital Partners Core Holdings, LLC bought 890,000 private placement units at $10.00 each, generating $8.9 million.
- $345 million placed in trust account; the company has not selected any business combination target.
- Combination period is 24 months, or 27 months if a letter of intent is entered; transaction costs totaled $20,186,929, including a $12,075,000 deferred underwriting fee.
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 18, 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.