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Inventories | 12 Months Ended
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Dec. 31, 2021
Classes Of Inventories [Abstract] |
Inventories |
13. | INVENTORIES
| As of December 31, |
| 2021 |  | 2020 |
| US$’000 |  | US$’000 |
Raw materials and supplies |  | 23,928 |  |  | 23,490 |
Work in progress |  | 24,791 |  |  | 17,992 |
Finished goods |  | 80,078 |  |  | 54,889 |
Total inventories at the lower of cost and net realizable value |  | 128,797 |  |  | 96,371 |
Inventories recognized as an expense during the year ended December 31, 2021, 2020 and 2019 amounted to $441,371, $279,728 and $313,695 respectively. For the year ended December 31, 2021, our Company recognized allowance for inventory of $14,136 as an expense in cost of sales for inventories carried at net realizable value. For the year ended December 31, 2020 and 2019, the amount of $240 and $322 were credited to cost of sales when the circumstances, such as copper price fluctuation, that caused the net realizable value of inventory to be lower than its cost no longer existed.

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- Definition The entire disclosure for inventories. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 2 -IssueDate 2021-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=2&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IAS02_g36-39__IAS02_g36-39_TI -URIDate 2021-03-24 + Details
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