Company: CLH
Filing Date: 2025-10-29
Form Type: 10-Q
Source: 0000822818-25-000040
Chunk: 87

Company: CLEAN HARBORS INC
Filing Date: 2025-10-29
Form: 10-Q
Item: Part I, Item 8
Chunk 87
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ANGIBLE ASSETS

The changes in goodwill by segment for the nine months ended September 30, 2025 were as follows (in thousands):Environmental ServicesSafety-Kleen Sustainability SolutionsTotalsBalance at January 1, 2025$1,296,204 $180,995 $1,477,199 Measurement period adjustments from prior period acquisitions146 (99)47 Foreign currency translation1,130 455 1,585 Balance at September 30, 2025$1,297,480 $181,351 $1,478,831 The Company assesses goodwill on an annual basis as of December 31 or at an interim date when events or changes in the business environment (“triggering events”) would more likely than not reduce the fair value of a reporting unit below its carrying value. During the period ended September 30, 2025, no such triggering events were identified.

13

As of September 30, 2025 and December 31, 2024, the Company’s intangible assets consisted of the following (in thousands):September 30, 2025December 31, 2024CostAccumulated AmortizationNetCostAccumulated AmortizationNetPermits$194,193 $130,053 $64,140 $191,921 $123,939 $67,982 Customer and supplier relationships698,036 283,708 414,328 697,326 256,657 440,669 Other intangible assets120,404 54,714 65,690 120,316 46,490 73,826 Total amortizable permits and other intangible assets1,012,633 468,475 544,158 1,009,563 427,086 582,477 Trademarks and trade names119,807 — 119,807 119,510 — 119,510 Total permits and other intangible assets$1,132,440 $468,475 $663,965 $1,129,073 $427,086 $701,987 Amortization expense of permits, customer and supplier relationships and other intangible assets was $13.4 million and $40.5 million in the three and nine months ended September 30, 2025, respectively. Amortization expense of permits, customer and supplier relationships and other intangible assets was $13