---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-111807"
form_type: "8-K"
ticker: "SXC"
cik: "0001514705"
company_name: "SunCoke Energy, Inc."
filed_at: "2023-04-24T23:59:59+00:00"
generated_at: "2026-06-16T18:50:03.243180+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# SunCoke extends Indiana Harbor coke supply deal with Cleveland-Cliffs through Sept 2035

## Summary
- 12-year extension of coke supply agreement; new term runs through September 2035.
- SunCoke will supply 1.22 million tons of metallurgical coke annually from Indiana Harbor facility.
- Key provisions similar to existing contract; no financial terms disclosed.
- Indiana Harbor is SunCoke's largest U.S. facility, operational since 1998.

## SEC filing metadata
- accession: 0001193125-23-111807
- form_type: 8-K
- ticker: SXC
- cik: 0001514705
- company_name: SunCoke Energy, Inc.
- filed_at: 2023-04-24T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1514705/000119312523111807/0001193125-23-111807-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1514705/000119312523111807/d491445d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-111807
- JSON: https://secwatch.observer/filing/0001193125-23-111807.json
- Plain text: https://secwatch.observer/filing/0001193125-23-111807.txt

## Key facts
- Material Agreements
  SunCoke Energy, Inc. amended Amended and Restated Coke Supply Agreement with Cleveland-Cliffs Steel LLC valued at Extends the term of the existing agreement through September 2035 on terms similar to the existing a (effective 2023-04-24).
  - Action: amendment
  - Agreement: supply
  - Counterparty: Cleveland-Cliffs Steel LLC
  - Value: Extends the term of the existing agreement through September 2035 on terms similar to the existing a
  - Effective: 2023-04-24
  source text: On April 24, 2023, SunCoke Energy, Inc. (the “ Company ”) announced that its Indiana Harbor Coke Company, L.P. subsidiary, located in East Chicago, Indiana, has amended and restated its existing agreement to supply metallurgical coke to Cleveland-Cliffs Steel LLC, a subsidiary of Cleveland-Cliffs Inc. The amended and restated coke supply agreement extends the term of the existing agreement through September 2035 on terms similar to the existing agreement.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1514705/000119312523111807/0001193125-23-111807-index.htm

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