Clean Harbors, Inc.

Filing receipts

“Interest Expense, Net of Interest Income Three Months Ended March 31, 2026 over 2025 (in thousands, except percentages) 2026 2025 Change % Change Interest expense, net of interest income $ 33,854 $ 36,077 $ (2,223) (6.2) % Interest expense, net of interest income for the three months ended March 31, 2026 decreased $2.2 million from the comparable period in 2025 primarily due to lower interest rates on outstanding debt during the period resulting from the debt refinancing transactions executed in October 2025 and lower variable interest rates on our SOFR-based debt.”

“Adjusted free cash flow, which management uses to measure our financial strength and ability to generate cash, was an outflow of $75.8 million in the three months ended March 31, 2026, as compared to an outflow of $115.7 million in the comparable period of 2025, an improvement of $39.9 million, primarily driven by lower cash paid for additions to property, plant and equipment.”

“Net cash from operating activities for the three months ended March 31, 2026 increased $4.7 million from $1.6 million in 2025 to $6.3 million in 2026 primarily due to lower cash paid for interest partially offset by higher working capital impacts in 2026 as compared to the prior year period.”