---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-23-008612"
form_type: "8-K"
ticker: "SXC"
cik: "0001514705"
company_name: "SunCoke Energy, Inc."
filed_at: "2023-03-20T23:59:59+00:00"
generated_at: "2026-06-17T22:57:13.398977+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# SunCoke Energy controller Bonnie Edeus resigns effective March 31, 2023; CFO to assume principal accounting duties

## Summary
- Bonnie M. Edeus, VP and Controller (principal accounting officer), will resign effective March 31, 2023.
- Chief Financial Officer Mark W. Marinko will perform principal accounting officer duties post-resignation.
- Marinko continues as principal financial officer; no successor controller named.

## SEC filing metadata
- accession: 0001628280-23-008612
- form_type: 8-K
- ticker: SXC
- cik: 0001514705
- company_name: SunCoke Energy, Inc.
- filed_at: 2023-03-20T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1514705/000162828023008612/0001628280-23-008612-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1514705/000162828023008612/sxc-20230314.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-23-008612
- JSON: https://secwatch.observer/filing/0001628280-23-008612.json
- Plain text: https://secwatch.observer/filing/0001628280-23-008612.txt

## Key facts
- Executive change
  Bonnie M. Edeus resigned as Vice President and Controller at SunCoke Energy, Inc..
  - Action: resigned
  - Role: Vice President and Controller
  source text: On March 14, 2023, Bonnie M. Edeus, Vice President and Controller of SunCoke Energy, Inc. (the “ Company ”), the designated principal accounting officer of the Company, informed the Company of her intention to resign, effective March 31, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1514705/000162828023008612/0001628280-23-008612-index.htm

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