---
schema_version: "secwatch.filing_event.v1"
accession: "0000822818-24-000005"
form_type: "8-K"
ticker: "CLH"
cik: "0000822818"
company_name: "CLEAN HARBORS INC"
filed_at: "2024-02-21T23:59:59+00:00"
generated_at: "2026-06-05T22:31:47.290940+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Clean Harbors Q4 revenue $1.34B (+5%), adj. EBITDA $255M (+14%); FY24 EBITDA guidance $1.05-1.11B

## Summary
- Q4 net income $98.3M ($1.81 EPS); adjusted EPS $1.82; full-year net income $377.9M ($6.95 EPS), adjusted EPS $6.99.
- Environmental Services segment revenue +7%, adjusted EBITDA +16% YoY; SKSS segment underperformed on base oil pricing.
- Q4 incineration utilization 85%; average price +7% YoY; waste oil collection 53M gallons at net charge-for-oil.
- Full-year 2024 guidance: adj. EBITDA $1.05-1.11B (midpoint $1.08B, +7%), adj. FCF $340-400M.
- FY23 adj. free cash flow $321.9M (+11% YoY); Nebraska incinerator construction with $65M spend in 2024.

## SEC filing metadata
- accession: 0000822818-24-000005
- form_type: 8-K
- ticker: CLH
- cik: 0000822818
- company_name: CLEAN HARBORS INC
- filed_at: 2024-02-21T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- 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/822818/000082281824000005/0000822818-24-000005-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/822818/000082281824000005/clh-20240221.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000822818-24-000005
- JSON: https://secwatch.observer/filing/0000822818-24-000005.json
- Plain text: https://secwatch.observer/filing/0000822818-24-000005.txt

## Key facts
- Earnings Releases
  CLEAN HARBORS INC reported the fourth quarter and year ended December 31, 2023 results: revenue $5.41 Billion, net income $377.9 Million, EPS $6.95. Guidance initiated.
  - Period: the fourth quarter and year ended December 31, 2023
  - Revenue: $5.41 Billion
  - Net income: $377.9 Million
  - EPS: $6.95
  - Guidance: initiated
  - Result: reported results
  source text: with this report as Exhibit 99.1. --- EX-99.1 (EX-99.1) --- Press Release Clean Harbors Announces Fourth-Quarter and Full-Year 2023 Financial Results • Posts Q4 Revenue of $1.34 Billion, up 5%; Full-Year Revenues of $5.41 Billion • Generates Q4 Net Income of $98.3 Million, or EPS of $1.81; Adjusted EPS of $1.82; Full-Year Net Income of $377.9 Million, or EPS of
  evidence_url: https://www.sec.gov/Archives/edgar/data/822818/000082281824000005/0000822818-24-000005-index.htm
- Earnings Releases
  CLEAN HARBORS INC reported the fourth quarter and year ended December 31, 2023 results: revenue $5.41 Billion, net income $377.9 Million, EPS $6.95. Guidance initiated.
  - Period: the fourth quarter and year ended December 31, 2023
  - Revenue: $5.41 Billion
  - Net income: $377.9 Million
  - EPS: $6.95
  - Guidance: initiated
  - Result: reported results
  source text: Full-Year Revenues of $5.41 Billion • Generates Q4 Net Income of $98.3 Million, or EPS of $1.81; Adjusted EPS of $1.82; Full-Year Net Income of $377.9 Million, or EPS of $6.95; Adjusted EPS of $6.99 • Achieves Q4 Adjusted EBITDA of $254.9 Million, up 14%; Generates Full-Year Adjusted EBITDA of $1.013 Billion • Delivers Full-Year Net Cash from Operating Activities of $734.6 Million and Adjusted Free Cash Flow of $321.9 Million • Provides Full-Year 2024 Adjusted EBITDA and Adjusted Free Cash Flow Guidance NORWELL, Mass.
  evidence_url: https://www.sec.gov/Archives/edgar/data/822818/000082281824000005/0000822818-24-000005-index.htm

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