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INVENTORIES (Tables) | 12 Months Ended
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Dec. 31, 2022
Inventory Disclosure [Abstract] |
Current Inventories | The Company’s inventories consisted of the following:
| December 31,
(in thousands) | 2022 |  | 2021
Materials and supplies(1) | $ | 28,590 |  |  | $ | 10,711 |
In-process | 27,212 |  |  | 25,574 |
Finished goods | 1,752 |  |  | 2,407 |
Total current inventories | 57,554 |  |  | 38,692 |
Add: Non-current portion(2) | 5,744 |  |  | — |
Total inventories | $ | 63,298 |  |  | $ | 38,692 |
(1)Includes materials acquired during the third quarter of 2022 to support activities pertaining to the Company’s rare earth metal, alloy and magnet manufacturing facility as a part of Stage III. (2)Represents stockpiled ore that is not expected to be processed within the next 12 months.
Noncurrent Inventories | The Company’s inventories consisted of the following:
| December 31,
(in thousands) | 2022 |  | 2021
Materials and supplies(1) | $ | 28,590 |  |  | $ | 10,711 |
In-process | 27,212 |  |  | 25,574 |
Finished goods | 1,752 |  |  | 2,407 |
Total current inventories | 57,554 |  |  | 38,692 |
Add: Non-current portion(2) | 5,744 |  |  | — |
Total inventories | $ | 63,298 |  |  | $ | 38,692 |
(1)Includes materials acquired during the third quarter of 2022 to support activities pertaining to the Company’s rare earth metal, alloy and magnet manufacturing facility as a part of Stage III. (2)Represents stockpiled ore that is not expected to be processed within the next 12 months.

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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 + Details
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