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INVENTORIES | 6 Months Ended
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Jun. 30, 2026
INVENTORIES |
INVENTORIES | NOTE 5—INVENTORIES Inventories, which are comprised of chemicals and raw materials available for resale, are valued at the lower of cost or net realizable value, with cost determined under the weighted-average method. The significant components of inventory are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ ​ ​ | ​ | ​ | ​ | ​ | ​
​ | ​ ​ ​ | June 30, 2026 | ​ ​ ​ | December 31, 2025
​ | ​ | (in thousands)
Raw materials | ​ | $ | 37,055 | ​ | $ | 27,402
Finished goods | ​ |  | 10,941 | ​ |  | 6,876
Total | ​ | $ | 47,996 | ​ | $ | 34,278
​ During the Current Quarter, Prior Quarter, Current Period and Prior Period, the Company recorded net charges to the reserve for excess and obsolete inventory of less than $0.1 million, less than $0.1 million, $0.1 million and less than $0.1 million, respectively. Net charges to the reserve for excess and obsolete inventory were recognized within cost of revenue on the accompanying consolidated statements of operations. The Company’s inventory reserve was $5.1 million and $4.9 million as of June 30, 2026 and December 31, 2025, respectively. The reserve for excess and obsolete inventories is determined based on the Company’s historical usage of inventory on hand, as well as future expectations and the amount necessary to reduce the cost of the inventory to its estimated 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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