---
schema_version: "secwatch.filing_event.v1"
accession: "0001227654-25-000145"
form_type: "8-K"
ticker: "CMP"
cik: "0001227654"
company_name: "COMPASS MINERALS INTERNATIONAL INC"
filed_at: "2025-08-11T23:59:59+00:00"
generated_at: "2026-05-17T15:12:33.000511+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Compass Minerals Q3 net loss narrows to $17M; adjusted EBITDA up 25% to $41M

## Summary
- Net loss of $17.0M ($0.41 diluted) improved from $43.6M loss YoY; adjusted EPS loss $0.39 vs $1.01.
- Total adjusted EBITDA $41.0M, up 25% YoY; Salt adj. EBITDA $45.8M (+10%), Plant Nutrition $11.4M (+58%).
- Salt revenue $166M (+3%) on 4% volume growth; highway deicing price +1%, C&I price -1%.
- Plant Nutrition revenue $44.8M (+15%); operating earnings $5.2M vs $1.4M loss; product costs per ton down 23%.
- FY 2025 guidance: Salt adj. EBITDA $220-229M, Plant Nutrition $24-27M; bid season pricing up 2-4% for upcoming winter.

## SEC filing metadata
- accession: 0001227654-25-000145
- form_type: 8-K
- ticker: CMP
- cik: 0001227654
- company_name: COMPASS MINERALS INTERNATIONAL INC
- filed_at: 2025-08-11T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- 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/1227654/000122765425000145/0001227654-25-000145-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1227654/000122765425000145/cmp-20250811.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001227654-25-000145
- JSON: https://secwatch.observer/filing/0001227654-25-000145.json
- Plain text: https://secwatch.observer/filing/0001227654-25-000145.txt

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