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Segment Information (Tables) | 9 Months Ended
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Sep. 30, 2025
Segment Reporting Information, Revenue for Reportable Segment [Abstract] |
Segment Reporting Information | The following table presents the Company’s segment information (in millions):
| Three Months Ended September 30, 2025 |  | Nine Months Ended September 30, 2025
| 2025 |  | 2024 |  | 2025 |  | 2024
Revenue |  |  |  |  |  |  |
LEU segment: |  |  |  |  |  |  |
Separative work units | $ | 10.7 |  |  | $ | 34.8 |  |  | $ | 187.7 |  |  | $ | 198.1 |
Uranium | 34.1 |  |  | — |  |  | 34.1 |  |  | 29.9 |
Intersegment revenue, eliminated on consolidation | 6.3 |  |  | — |  |  | 12.4 |  |  | — |
Total | 51.1 |  |  | 34.8 |  |  | 234.2 |  |  | 228.0 |
Technical Solutions segment | 30.1 |  |  | 22.9 |  |  | 80.7 |  |  | 62.4 |
Total | 81.2 |  |  | 57.7 |  |  | $ | 314.9 |  |  | $ | 290.4 |
Elimination of intersegment revenue | (6.3) |  |  | — |  |  | (12.4) |  |  | — |
Total revenue | $ | 74.9 |  |  | $ | 57.7 |  |  | $ | 302.5 |  |  | $ | 290.4 |
Cost of Sales |  |  |  |  |  |  |
LEU segment: |  |  |  |  |  |  |
Separative work units and uranium | $ | 52.6 |  |  | $ | 29.6 |  |  | $ | 147.7 |  |  | $ | 189.3 |
Intersegment cost of sales, eliminated on consolidation | 6.4 |  |  | — |  |  | 10.7 |  |  | — |
Total | 59.0 |  |  | 29.6 |  |  | 158.4 |  |  | 189.3 |
Technical Solutions segment | 26.6 |  |  | 19.2 |  |  | 72.3 |  |  | 51.4 |
Total | 85.6 |  |  | 48.8 |  |  | 230.7 |  |  | 240.7 |
Elimination of intersegment cost of sales | (6.4) |  |  | — |  |  | (10.7) |  |  | — |
Total cost of sales | $ | 79.2 |  |  | $ | 48.8 |  |  | $ | 220.0 |  |  | $ | 240.7 |
Segment Gross Profit (Loss) |  |  |  |  |  |  |
LEU segment: |  |  |  |  |  |  |
LEU segment | $ | (7.8) |  |  | $ | 5.2 |  |  | $ | 74.1 |  |  | $ | 38.7 |
Intersegment gross profit (loss), eliminated on consolidation | (0.1) |  |  | — |  |  | 1.7 |  |  | — |
Total | (7.9) |  |  | 5.2 |  |  | 75.8 |  |  | 38.7 |
Technical Solutions segment: |  |  |  |  |  |  |
Technical Solutions | 3.5 |  |  | 3.7 |  |  | 8.4 |  |  | 11.0 |
Total | 3.5 |  |  | 3.7 |  |  | 8.4 |  |  | 11.0 |
Elimination of intersegment gross profit (loss) | 0.1 |  |  | — |  |  | (1.7) |  |  | — |
Gross profit (loss) | $ | (4.3) |  |  | $ | 8.9 |  |  | $ | 82.5 |  |  | $ | 49.7 |
Reconciliation to Income (loss) before income taxes |  |  |  |  |  |  |
Advanced technology costs | $ | 1.7 |  |  | $ | 4.1 |  |  | $ | 8.0 |  |  | $ | 13.9 |
Selling, general and administrative | 8.9 |  |  | 9.6 |  |  | 25.9 |  |  | 24.6 |
Equity-related compensation | 0.6 |  |  | 0.4 |  |  | 5.3 |  |  | 1.1 |
Amortization of intangible assets | 1.1 |  |  | 2.4 |  |  | 5.9 |  |  | 7.2 |
Nonoperating components of net periodic benefit loss (income) | 1.0 |  |  | 0.8 |  |  | 2.9 |  |  | (15.4) |
Interest expense | 3.4 |  |  | 0.1 |  |  | 9.9 |  |  | 0.8 |
Investment income | (12.9) |  |  | (2.6) |  |  | (28.2) |  |  | (7.8) |
Extinguishment of long-term debt | — |  |  | — |  |  | (11.8) |  |  | — |
Other expense (income), net | (0.1) |  |  | — |  |  | — |  |  | 0.1 |
Income (loss) before income taxes | $ | (8.0) |  |  | $ | (5.9) |  |  | $ | 64.6 |  |  | $ | 25.2 |
The Company’s total assets are not presented for each reportable segment as they are not reviewed by, nor otherwise regularly provided to the chief operating decision maker (“CODM”), the CEO. The CODM uses revenue, cost of sales and gross profit to allocate resources (including personnel and financial or capital resources) for each segment, predominantly in the annual budget and quarterly financial review and forecasting process. The CODM considers budget-to-actual variances on a quarterly basis using revenue, cost of sales and gross profit when making decisions about allocating capital and personnel to the segments. Centrus’ long-term or long-lived assets, which include property, plant and equipment and other assets reported on the Consolidated Balance Sheet, were located in the United States as of September 30, 2025 and December 31, 2024.

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-25 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 + Details
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