Company: CLH
Filing Date: 2025-02-19
Form Type: 10-K
Source: 0000822818-25-000007
Chunk: 111

Company: CLEAN HARBORS INC
Filing Date: 2025-02-19
Form: 10-K
Item: Item 1
Chunk 111
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 a right to payment for performance completed to date. Parts washer services include customer use of the Company’s parts washer equipment, cleaning and maintenance of the parts washer equipment and removal and replacement of used cleaning fluids. Parts washer services are considered a single performance obligation due to the highly integrated and 

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Table of ContentsCLEAN HARBORS, INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

interdependent nature of the arrangement. Revenue from parts washer services is recognized over the service interval as the customer receives the benefit of the services. Safety-Kleen Oil—Safety-Kleen Oil related sales contribute to the revenues of the SKSS segment. These revenues are generated from bulk sales of high-quality base and blended lubricating oils to many industries, including major oil brands, lubricant blenders and manufacturers, blended lubricant distributors and government agencies. The business also sells recycled fuel oil to asphalt plants, industrial plants and pulp and paper companies. The used oil is also processed into vacuum gas oil which can be further re-refined into lubricant base oils or sold directly into the marine diesel oil fuel market. By-products coming off the refinery are a mixture of light end distillates and asphalt flux that are sold into various markets. Revenue for oil products is recognized at a point in time, upon the transfer of control. Generally, control transfers when the products are delivered to the customer.The following tables present the Company’s third-party revenue disaggregated by source of revenue and geography (in thousands):For the year ended December 31, 2024Environmental ServicesSafety-Kleen Sustainability SolutionsCorporateTotalPrimary Geographical MarketsUnited States$4,510,845 $841,171 $407 $5,352,423 Canada449,480 88,049 — 537,529 Total third-party revenues$4,960,325 $929,220 $407 $5,889,952 Sources of RevenueTechnical Services$1,733,550 $— $— $1,733,550 Industrial Services and Other1,377,502 — 407 1,377,909 Field and Emergency Response Services895,120 — — 895,120 Safety-Kleen Environmental Services954,153 229,730 — 1,183,883 Safety-Kleen Oil— 699,490 — 699,490 Total third-party revenues$4,960,325 $929,