---
schema_version: "secwatch.filing_event.v1"
accession: "0001227654-25-000032"
form_type: "8-K"
ticker: "CMP"
cik: "0001227654"
company_name: "COMPASS MINERALS INTERNATIONAL INC"
filed_at: "2025-02-10T23:59:59+00:00"
generated_at: "2026-05-26T23:54:22.308851+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Compass Minerals Q1 revenue down 10% to $307M; adjusted EBITDA falls 48% to $32.1M

## Summary
- Net loss improved to $23.6M ($0.57 per share) vs $75.3M ($1.83) last year.
- Salt segment revenue $242.2M (-12% YoY) on 13% volume decline; adjusted EBITDA per ton down 17% to $19.17.
- Plant Nutrition revenue up 24% to $61.4M, but operating loss widened to $3.1M from $2.3M.
- FY2025 total adjusted EBITDA guidance set at $152-193M; capex reduced to $75-85M from prior $100-110M.
- North American highway deicing inventory volumes down 10% YoY; production curtailment at Goderich mine ongoing.

## SEC filing metadata
- accession: 0001227654-25-000032
- form_type: 8-K
- ticker: CMP
- cik: 0001227654
- company_name: COMPASS MINERALS INTERNATIONAL INC
- filed_at: 2025-02-10T23:59:59+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/1227654/000122765425000032/0001227654-25-000032-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1227654/000122765425000032/cmp-20250210.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001227654-25-000032
- JSON: https://secwatch.observer/filing/0001227654-25-000032.json
- Plain text: https://secwatch.observer/filing/0001227654-25-000032.txt

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