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v3.25.3

Revenue Recognition (Tables) | 9 Months Ended
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Sep. 30, 2025
Revenue from Contract with Customer [Abstract] |
Summary of revenues by primary geographical markets | A summary of the Company's revenues by primary geographical markets as well as by key product and service groups is as follows:
|  | Three Months Ended
|  | September 30, 2025
(In thousands) |  | Harsco Environmental |  | Clean Earth |  | Harsco Rail |  |  |  | Consolidated Totals
Primary Geographical Markets (a): |  |  |  |  |  |  |  |  |  |
North America |  | $ | 57,750 |  |  | $ | 250,051 |  |  | $ | 33,865 |  |  |  |  | $ | 341,666 |
Western Europe |  | 101,108 |  |  | — |  |  | 22,216 |  |  |  |  | 123,324 |
Latin America (b) |  | 38,815 |  |  | — |  |  | 312 |  |  |  |  | 39,127 |
Asia-Pacific |  | 31,971 |  |  | — |  |  | 7,240 |  |  |  |  | 39,211 |
Middle East and Africa |  | 26,562 |  |  | — |  |  | — |  |  |  |  | 26,562 |
Eastern Europe |  | 4,925 |  |  | — |  |  | — |  |  |  |  | 4,925 |
Total Revenues |  | $ | 261,131 |  |  | $ | 250,051 |  |  | $ | 63,633 |  |  |  |  | $ | 574,815 |
Key Product and Service Groups: |  |  |  |  |  |  |  |  |  |
Environmental services related to resource recovery for metals manufacturing and related logistical services |  | $ | 241,417 |  |  | $ | — |  |  | $ | — |  |  |  |  | $ | 241,417 |
Ecoproducts |  | 14,980 |  |  | — |  |  | — |  |  |  |  | 14,980 |
Environmental systems for aluminum dross and scrap processing |  | 4,734 |  |  | — |  |  | — |  |  |  |  | 4,734 |
Railway track maintenance equipment |  | — |  |  | — |  |  | 18,538 |  |  |  |  | 18,538 |
After market parts and services; safety and diagnostic technology |  | — |  |  | — |  |  | 31,227 |  |  |  |  | 31,227 |
Railway contracting services |  | — |  |  | — |  |  | 13,868 |  |  |  |  | 13,868 |
Hazardous waste processing solutions |  | — |  |  | 212,952 |  |  | — |  |  |  |  | 212,952 |
Soil and dredged materials processing and reuse solutions |  | — |  |  | 37,099 |  |  | — |  |  |  |  | 37,099 |
Total Revenues |  | $ | 261,131 |  |  | $ | 250,051 |  |  | $ | 63,633 |  |  |  |  | $ | 574,815 |
|  | Three Months Ended
|  | September 30, 2024
(In thousands) |  | Harsco Environmental |  | Clean Earth |  | Harsco Rail |  |  |  | Consolidated Totals
Primary Geographical Markets (a): |  |  |  |  |  |  |  |  |  |
North America |  | $ | 70,316 |  |  | $ | 236,791 |  |  | $ | 31,644 |  |  |  |  | $ | 338,751 |
Western Europe |  | 108,709 |  |  | — |  |  | 21,294 |  |  |  |  | 130,003 |
Latin America (b) |  | 38,195 |  |  | — |  |  | 247 |  |  |  |  | 38,442 |
Asia-Pacific |  | 31,333 |  |  | — |  |  | 4,503 |  |  |  |  | 35,836 |
Middle East and Africa |  | 26,327 |  |  | — |  |  | — |  |  |  |  | 26,327 |
Eastern Europe |  | 4,268 |  |  | — |  |  | — |  |  |  |  | 4,268 |
Total Revenues |  | $ | 279,148 |  |  | $ | 236,791 |  |  | $ | 57,688 |  |  |  |  | $ | 573,627 |
|  | Three Months Ended
|  | September 30, 2024
(In thousands) |  | Harsco Environmental |  | Clean Earth |  | Harsco Rail |  |  |  | Consolidated Totals
Key Product and Service Groups: |  |  |  |  |  |  |  |  |  |
Environmental services related to resource recovery for metals manufacturing and related logistical services |  | $ | 235,490 |  |  | $ | — |  |  | $ | — |  |  |  |  | $ | 235,490 |
Ecoproducts |  | 36,663 |  |  | — |  |  | — |  |  |  |  | 36,663 |
Environmental systems for aluminum dross and scrap processing |  | 6,995 |  |  | — |  |  | — |  |  |  |  | 6,995 |
Railway track maintenance equipment |  | — |  |  | — |  |  | 19,099 |  |  |  |  | 19,099 |
After market parts and services; safety and diagnostic technology |  | — |  |  | — |  |  | 23,495 |  |  |  |  | 23,495 |
Railway contracting services |  | — |  |  | — |  |  | 15,094 |  |  |  |  | 15,094 |
Hazardous waste processing solutions |  | — |  |  | 194,557 |  |  | — |  |  |  |  | 194,557 |
Soil and dredged materials processing and reuse solutions |  | — |  |  | 42,234 |  |  | — |  |  |  |  | 42,234 |
Total Revenues |  | $ | 279,148 |  |  | $ | 236,791 |  |  | $ | 57,688 |  |  |  |  | $ | 573,627 |
|  | Nine Months Ended
|  | September 30, 2025
(In thousands) |  | Harsco Environmental |  | Clean Earth |  |  |  | Harsco Rail |  |  |  | Consolidated Totals
Primary Geographical Markets (a): |  |  |  |  |  |  |  |  |  |  |  |
North America |  | $ | 170,589 |  |  | $ | 731,564 |  |  |  |  | $ | 101,459 |  |  |  |  | $ | 1,003,612 |
Western Europe |  | 304,056 |  |  | — |  |  |  |  | 72,262 |  |  |  |  | 376,318 |
Latin America (b) |  | 106,485 |  |  | — |  |  |  |  | 2,745 |  |  |  |  | 109,230 |
Asia-Pacific |  | 90,363 |  |  | — |  |  |  |  | 15,077 |  |  |  |  | 105,440 |
Middle East and Africa |  | 76,668 |  |  | — |  |  |  |  | — |  |  |  |  | 76,668 |
Eastern Europe |  | 14,085 |  |  | — |  |  |  |  | — |  |  |  |  | 14,085 |
Total Revenues |  | $ | 762,246 |  |  | $ | 731,564 |  |  |  |  | $ | 191,543 |  |  |  |  | $ | 1,685,353 |
Key Product and Service Groups: |  |  |  |  |  |  |  |  |  |  |  |
Environmental services related to resource recovery for metals manufacturing and related logistical services |  | $ | 709,072 |  |  | $ | — |  |  |  |  | $ | — |  |  |  |  | $ | 709,072 |
Ecoproducts |  | 38,497 |  |  | — |  |  |  |  | — |  |  |  |  | 38,497 |
Environmental systems for aluminum dross and scrap processing |  | 14,677 |  |  | — |  |  |  |  | — |  |  |  |  | 14,677 |
Railway track maintenance equipment |  | — |  |  | — |  |  |  |  | 67,258 |  |  |  |  | 67,258 |
After-market parts and services; safety and diagnostic technology |  | — |  |  | — |  |  |  |  | 78,498 |  |  |  |  | 78,498 |
Railway contracting services |  | — |  |  | — |  |  |  |  | 45,787 |  |  |  |  | 45,787 |
Hazardous waste processing solutions |  | — |  |  | 622,129 |  |  |  |  | — |  |  |  |  | 622,129 |
Soil and dredged materials processing and reuse solutions |  | — |  |  | 109,435 |  |  |  |  | — |  |  |  |  | 109,435 |
Total Revenues |  | $ | 762,246 |  |  | $ | 731,564 |  |  |  |  | $ | 191,543 |  |  |  |  | $ | 1,685,353 |
|  | Nine Months Ended
|  | September 30, 2024
(In thousands) |  | Harsco Environmental |  | Clean Earth |  |  |  | Harsco Rail |  |  |  | Consolidated Totals
Primary Geographical Markets (a): |  |  |  |  |  |  |  |  |  |  |  |
North America |  | $ | 238,553 |  |  | $ | 698,926 |  |  |  |  | $ | 129,119 |  |  |  |  | $ | 1,066,598 |
Western Europe |  | 328,604 |  |  | — |  |  |  |  | 61,318 |  |  |  |  | 389,922 |
Latin America (b) |  | 122,396 |  |  | — |  |  |  |  | 3,205 |  |  |  |  | 125,601 |
Asia-Pacific |  | 88,593 |  |  | — |  |  |  |  | 20,173 |  |  |  |  | 108,766 |
Middle East and Africa |  | 79,858 |  |  | — |  |  |  |  | — |  |  |  |  | 79,858 |
Eastern Europe |  | 13,192 |  |  | — |  |  |  |  | — |  |  |  |  | 13,192 |
Total Revenues |  | $ | 871,196 |  |  | $ | 698,926 |  |  |  |  | $ | 213,815 |  |  |  |  | $ | 1,783,937 |
Key Product and Service Groups: |  |  |  |  |  |  |  |  |  |  |  |
Environmental services related to resource recovery for metals manufacturing and related logistical services |  | $ | 747,303 |  |  | $ | — |  |  |  |  | $ | — |  |  |  |  | $ | 747,303 |
Ecoproducts |  | 107,190 |  |  | — |  |  |  |  | — |  |  |  |  | 107,190 |
Environmental systems for aluminum dross and scrap processing |  | 16,703 |  |  | — |  |  |  |  | — |  |  |  |  | 16,703 |
Railway track maintenance equipment |  | — |  |  | — |  |  |  |  | 79,535 |  |  |  |  | 79,535 |
After-market parts and services; safety and diagnostic technology |  | — |  |  | — |  |  |  |  | 89,502 |  |  |  |  | 89,502 |
Railway contracting services |  | — |  |  | — |  |  |  |  | 44,778 |  |  |  |  | 44,778 |
Hazardous waste processing solutions |  | — |  |  | 581,341 |  |  |  |  | — |  |  |  |  | 581,341 |
Soil and dredged materials processing and reuse solutions |  | — |  |  | 117,585 |  |  |  |  | — |  |  |  |  | 117,585 |
Total Revenues |  | $ | 871,196 |  |  | $ | 698,926 |  |  |  |  | $ | 213,815 |  |  |  |  | $ | 1,783,937 |
(a) Revenues are attributed to individual countries based on the location of the facility generating the revenue. (b) Includes Mexico.

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