---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-062152"
form_type: "8-K"
ticker: "ZONE"
cik: "0001956741"
company_name: "CleanCore Solutions, Inc."
filed_at: "2026-05-28T20:30:16+00:00"
generated_at: "2026-05-28T20:33:35.854733+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# CleanCore director David Enholm resigns; CEO Tyler Hassen appointed to board

## Summary
- David Enholm resigned from board effective May 21, 2026; no disagreement with company; remains CFO.
- CEO Tyler Hassen appointed to fill board vacancy, effective May 21, 2026.
- Hassen, 43, has been CEO since March 2026; prior roles at Basin Holdings and U.S. Dept. of Interior.

## SEC filing metadata
- accession: 0001213900-26-062152
- form_type: 8-K
- ticker: ZONE
- cik: 0001956741
- company_name: CleanCore Solutions, Inc.
- filed_at: 2026-05-28T20:30:16+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1956741/000121390026062152/0001213900-26-062152-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1956741/000121390026062152/ea0292418-8k_cleancore.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-062152
- JSON: https://secwatch.observer/filing/0001213900-26-062152.json
- Plain text: https://secwatch.observer/filing/0001213900-26-062152.txt

## Source-grounded claims
- claim_id: 4ecf997852
  claim: David Enholm resigned as member of the Board at CleanCore Solutions, Inc..
  evidence_excerpt: On May 21, 2026, David Enholm notified the Board of Directors (the “Board”) of CleanCore Solutions, Inc. (the “Company”) of his resignation as a member of the Board, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1956741/000121390026062152/0001213900-26-062152-index.htm
- claim_id: 94a1b72efd
  claim: Tyler Hassen was appointed as director at CleanCore Solutions, Inc..
  evidence_excerpt: On May 21, 2026, the Board, upon the recommendation of the Nominating and Corporate Governance Committee of the Board (the “Nominating Committee”), appointed Tyler Hassen, the Company’s Chief Executive Officer, to fill the vacancy on the Board created by Mr. Enholm’s resignation, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1956741/000121390026062152/0001213900-26-062152-index.htm

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