---
schema_version: "secwatch.filing_event.v1"
accession: "0001829126-24-000891"
form_type: "8-K"
ticker: null
cik: "0001853580"
company_name: "Perception Capital Corp. III"
filed_at: "2024-02-12T23:59:59+00:00"
generated_at: "2026-06-06T04:28:21.219538+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Perception Capital Corp. III signs definitive business combination with RBio Energy Corp.; also gets Nasdaq notice

## Summary
- Definitive business combination agreement with RBio Energy Corp.; PC3 will merge with a NewPubco and become a wholly owned subsidiary.
- Sponsor support agreement: Perception Capital Partners IIIA LLC votes in favor, waives redemptions, may forfeit private placement warrants.
- RBio Energy plans to negotiate a commercial supply/fulfillment agreement by March 31, 2024, as a condition to closing.
- Nasdaq deficiency notice for missing annual meeting; PC3 has 45 days to submit a compliance plan, with possible extension to June 28, 2024.

## SEC filing metadata
- accession: 0001829126-24-000891
- form_type: 8-K
- cik: 0001853580
- company_name: Perception Capital Corp. III
- filed_at: 2024-02-12T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 1.01, 3.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1853580/000182912624000891/0001829126-24-000891-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1853580/000182912624000891/perceptioncapital3_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001829126-24-000891
- JSON: https://secwatch.observer/filing/0001829126-24-000891.json
- Plain text: https://secwatch.observer/filing/0001829126-24-000891.txt

## Key facts
- Listing & Compliance Notices
  Perception Capital Corp. III received a nasdaq deficiency notice notice regarding other (rules 5620(a)).
  - Exchange: nasdaq
  - Notice: deficiency notice
  - Rules: 5620(a)
  source text: February 6, 2024, PC3 received a written notice (the “Notice”) from the Listing Qualifications Department of The Nasdaq Stock Market LLC (“Nasdaq”) indicating that PC3 has not yet held an annual meeting of shareholders within twelve months after its fiscal year end, and therefore no longer complies with Nasdaq Listing Rule 5620(a). The Notice is only a notification of deficiency, not of imminent delisting, and has no current effect on the listing or trading of the PC3’s securities on the Nasdaq Capital Market. The Notice states that PC3 has 45 calendar days, or until March 25, 2024, to subm
  evidence_url: https://www.sec.gov/Archives/edgar/data/1853580/000182912624000891/0001829126-24-000891-index.htm
- Material Agreements
  Perception Capital Corp. III entered into Business Combination Agreement with RBio Energy Holdings Corp., Perception RBio Merger Sub, RBio Energy Corporation (effective 2024-02-06).
  - Action: entry
  - Agreement: merger
  - Counterparty: RBio Energy Holdings Corp., Perception RBio Merger Sub, RBio Energy Corporation
  - Effective: 2024-02-06
  source text: On February 6, 2024, Perception Capital Corp. III, a Cayman Islands exempted company (“PC3”) entered into a business combination agreement (the “Business Combination Agreement”) with RBio Energy Holdings Corp., a Delaware corporation (“NewPubco”), Perception RBio Merger Sub, a Cayman Islands exempted company and a wholly owned subsidiary of NewPubco (“Merger Sub”), and RBio Energy Corporation, a Delaware corporation (“RBio Energy”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1853580/000182912624000891/0001829126-24-000891-index.htm

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