---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-091443"
form_type: "8-K"
ticker: null
cik: "0001037676"
company_name: "ARCH RESOURCES, INC."
filed_at: "2024-08-21T23:59:59+00:00"
generated_at: "2026-05-31T08:11:24.965423+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: "high"
source: SEC EDGAR
---

# Arch Resources and CONSOL Energy to merge in all-stock deal, creating Core Natural Resources

## Summary
- Arch shareholders receive 1.326 CONSOL shares per Arch share; combined market cap ~$5.2B.
- Pro forma 2023 revenue ~$5.7B, adjusted EBITDA ~$1.8B; expected annual synergies $110-140M.
- Combined company renamed Core Natural Resources; James Brock (Executive Chair) and Paul Lang (CEO).
- Merger termination fee of $82M; expense reimbursement up to $23.5M under certain conditions.
- Boards of both companies unanimously approved; closing subject to shareholder and regulatory approvals.

## SEC filing metadata
- accession: 0001104659-24-091443
- form_type: 8-K
- cik: 0001037676
- company_name: ARCH RESOURCES, INC.
- filed_at: 2024-08-21T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.9
- calibrated_materiality_score: 0.9
- confidence: high
- sec_items: 1.01, 5.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1037676/000110465924091443/0001104659-24-091443-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1037676/000110465924091443/tm2421962d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-091443
- JSON: https://secwatch.observer/filing/0001104659-24-091443.json
- Plain text: https://secwatch.observer/filing/0001104659-24-091443.txt

## Key facts
- Executive change
  Paul Lang was appointed as Chief Executive Officer at ARCH RESOURCES, INC..
  - Action: appointed
  - Role: Chief Executive Officer
  source text: reflect Mr. Lang’s new role as Chief Executive Officer of the combined company
  evidence_url: https://www.sec.gov/Archives/edgar/data/1037676/000110465924091443/0001104659-24-091443-index.htm

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