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INVENTORIES | 12 Months Ended
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Dec. 31, 2024
INVENTORIES |
INVENTORIES | 4. INVENTORIES Inventories consist of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, | ​ | December 31,
​ |  | 2023 |  | 2024
Raw materials | ​ | $ | 222,826 | ​ | $ | 233,034
Work-in-process | ​ |  | 139,116 | ​ | ​ | 157,290
Finished goods | ​ |  | 817,699 | ​ | ​ | 816,271
Total | ​ | $ | 1,179,641 | ​ | $ | 1,206,595
​ The Company recorded inventory write- downs of $7,475, $113,079 and $151,957 in the year ended December 31, 2022, 2023 and 2024, respectively, to reflect lower of cost and net realizable value.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 330 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/330/tableOfContent + Details
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