Clean Harbors — Oct 30, 2024 release

“Overall, despite some market obstacles related to base oil and refining customers, we expect to end 2024 with strong momentum across our network of disposal facilities and service offerings giving us a positive trajectory into 2025.” Based on its third-quarter performance and current forecast, Clean Harbors revised its full-year 2024 guidance and now expects: • Adjusted EBITDA in the range of $1.10 billion to $1.12 billion, or a midpoint of $1.11 billion, which represents 10% growth year-over-year. This Adjusted EBITDA range is based on anticipated GAAP net income in the range of $375 million to $395 million. Clean Harbors • 42 Longwater Drive • PO Box 9149 • Norwell, Massachusetts 02061-9149 • 800.282.0058 • www.cleanharbors.com • Adjusted free cash flow in the range of $280 million to $320 million, or a midpoint of $300 million, which includes spending related to the Kimball incinerator and the Company’s Baltimore expansion. The Company is revising this range due to its new Adjusted EBITDA guidance and increased short-term working capital levels. This new range is based on anticipated net cash from operating activities in the range of $680 million to $750 million. Non-GAAP Results Clean Harbors reports Adjusted EBITDA, which is a non-GAAP financial measure and should not be considered an alternative to net income or other measurements under generally accepted accounting principles (GAAP) but viewed only as a supplement to those measurements. Adjusted EBITDA is not calculated identically by all companies, and therefore the Company’s measurement of Adjusted EBITDA may not be comparable to similarly titled measures reported by other companies. Clean Harbors believes that Adjusted EBITDA provides additional useful information to investors because the Company’s management routinely evalu