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Segment Information | 12 Months Ended
--- | ---
Dec. 31, 2023
Segment Reporting Information, Revenue for Reportable Segment [Abstract] |
Segment Information | REVENUE BY GEOGRAPHIC AREA, MAJOR CUSTOMERS AND SEGMENT INFORMATION Revenue by customer location, including customers in a foreign country representing 10% or more of total revenue, follows (in millions):
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
United States | $ | 281.6 |  |  | $ | 154.3 |  |  | $ | 220.5 |
Foreign: |  |  |  |  |
Belgium | 0.1 |  |  | 38.3 |  |  | 36.6 |
Japan | 23.6 |  |  | 61.6 |  |  | 34.6 |
Other | 14.9 |  |  | 39.6 |  |  | 6.6 |
Total foreign | 38.6 |  |  | 139.5 |  |  | 77.8 |
Total revenue | $ | 320.2 |  |  | $ | 293.8 |  |  | $ | 298.3 |
The U.S. government and its contractors, in the Company’s Technical Solutions segment, represented approximately 16% of total revenue for the year ended December 31, 2023, 20% for the year ended December 31, 2022, and 38% for the year ended December 31, 2021. The ten largest customers in the Company’s LEU segment represented approximately 79% of total revenue for the year ended December 31, 2023. Revenue from Customer A , Customer B, and Customer C represented approximately 17%, 15%, and 13% respectively, of total revenue for the year ended December 31, 2023. The ten largest customers in the Company’s LEU segment represented approximately 75% of total revenue for the year ended December 31, 2022. Revenue from Kyushu Electric Power Company and Synatom represented approximately 15% and 13%, respectively, of total revenue for the year ended December 31, 2022. The ten largest customers in the Company’s LEU segment represented approximately 57% of total revenue for the year ended December 31, 2021. Revenue from Kyushu Electric Power Company and Synatom represented approximately 12% of total revenue for the year ended December 31, 2021. No other customer represented more than 10% of total revenue for the year ended December 31, 2023, 2022, or 2021. Centrus has two reportable segments: the LEU segment with two components, SWU and uranium, and the Technical Solutions segment. The LEU segment includes sales of the SWU component of LEU, sales of both the SWU and uranium components of LEU, and sales of uranium. The Technical Solutions segment includes revenue and cost of sales for work that Centrus performs under the HALEU Demonstration and Operation Contracts. The Technical Solutions segment also includes limited services provided by Centrus to DOE and its contractors at the Piketon facility. Gross profit is Centrus’ measure for segment reporting. Net sales of the Company’s business segments in the following tables exclude intersegment sales as these activities are eliminated in consolidation and thus are not included in management’s evaluation of performance of each segment. Sales between segments are recorded at market prices at the time of the sale. Such intercompany operating income is eliminated in consolidation, so that the company’s total sales and total operating income reflect only those transactions with external customers. Refer to Note 1, Summary of Significant Accounting Policies, and Note 2, Revenue and Contracts with Customers, for additional details on revenue for each segment. The following table presents the Company’s segment information (in millions):
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
Revenue |  |  |  |  |
LEU segment: |  |  |  |  |
Separative work units | $ | 208.2 |  |  | $ | 196.2 |  |  | $ | 163.3 |
Uranium | 60.8 |  |  | 39.4 |  |  | 22.8 |
Intersegment revenue, eliminated on consolidation | 5.0 |  |  | — |  |  | — |
Total | 274.0 |  |  | 235.6 |  |  | 186.1 |
Technical Solutions segment | 51.2 |  |  | 58.2 |  |  | 112.2 |
Total revenue | 325.2 |  |  | 293.8 |  |  | 298.3 |
Elimination of intersegment revenue | (5.0) |  |  | — |  |  | — |
Total revenue | $ | 320.2 |  |  | $ | 293.8 |  |  | $ | 298.3 |
Segment Gross Profit (Loss) |  |  |  |  |
LEU segment: |  |  |  |  |
LEU segment | $ | 105.1 |  |  | $ | 130.6 |  |  | $ | 73.0 |
Intersegment gross profit, eliminated on consolidation | 2.0 |  |  | — |  |  | — |
Total | 107.1 |  |  | 130.6 |  |  | 73.0 |
Technical Solutions segment: |  |  |  |  |
Technical Solutions segment | 7.0 |  |  | (12.7) |  |  | 41.5 |
Intersegment gross profit, eliminated on consolidation | 3.0 |  |  |  |  |
Total | 10.0 |  |  | (12.7) |  |  | 41.5 |
Elimination of intersegment gross profit | (5.0) |  |  | — |  |  | — |
Gross profit | $ | 112.1 |  |  | $ | 117.9 |  |  | $ | 114.5 |
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. 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 December 31, 2023, and December 31, 2022.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-22 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-15 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 31 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-31 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-32 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-42 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-32 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-40 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//280/tableOfContent Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 26 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-26 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 34 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-34 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 41 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-41 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-21 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-21 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-32 + Details
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