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RELATED PARTY TRANSACTIONS (Tables) | 9 Months Ended
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Sep. 30, 2024
Related Party Transactions [Abstract] |
Schedule of Related Party Revenue and Cost of Sales | The Company’s related-party revenue and cost of sales were as follows:
| For the three months ended September 30, |  | For the nine months ended September 30,
(in thousands) | 2024 |  | 2023 |  | 2024 |  | 2023
Revenue: |  |  |  |  |  |  |
Rare earth concentrate | $ | 43,053 |  |  | $ | 51,502 |  |  | $ | 107,555 |  |  | $ | 203,186 |
NdPr oxide and metal | $ | 5,061 |  |  | $ | — |  |  | $ | 7,306 |  |  | $ | — |
Cost of sales (excluding depreciation, depletion and amortization) | $ | 38,139 |  |  | $ | 21,829 |  |  | $ | 78,848 |  |  | $ | 66,817 |

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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
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