---
schema_version: "secwatch.filing_event.v1"
accession: "0001227654-24-000034"
form_type: "8-K"
ticker: "CMP"
cik: "0001227654"
company_name: "COMPASS MINERALS INTERNATIONAL INC"
filed_at: "2024-02-07T23:59:59+00:00"
generated_at: "2026-06-06T06:42:36.220048+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Compass Minerals Q1 net loss $75.1M; terminates lithium project, takes $77M charge

## Summary
- Revenue $341.7M (-3% YoY); GAAP diluted EPS -$1.83; adjusted diluted EPS $0.05.
- Salt segment adjusted EBITDA $65.7M (+8% YoY); adjusted EBITDA per ton $23.01 (+33%).
- Plant Nutrition sales volumes up 67% YoY; avg price down 29% to ~$660/ton.
- Terminated lithium project, incurred $74.8M impairment and $2.5M restructuring charge.
- FY 2024 guidance: Salt adj. EBITDA $230-270M; Plant Nutrition adj. EBITDA $15-35M (revised down).

## SEC filing metadata
- accession: 0001227654-24-000034
- form_type: 8-K
- ticker: CMP
- cik: 0001227654
- company_name: COMPASS MINERALS INTERNATIONAL INC
- filed_at: 2024-02-07T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1227654/000122765424000034/0001227654-24-000034-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1227654/000122765424000034/cmp-20240207.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001227654-24-000034
- JSON: https://secwatch.observer/filing/0001227654-24-000034.json
- Plain text: https://secwatch.observer/filing/0001227654-24-000034.txt

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