4. Inventories

The Company values its inventories at the lower of first-in, first out (“FIFO”) cost or market cost, with the exception of approximately 5.8% and 5.6% of inventories valued at last-in, first-out (“LIFO”) as of August 31, 2026 and February 28, 2026, respectively, or net realizable value. The Company regularly reviews inventories on hand, using specific aging categories, and writes down the carrying value of its inventories for excess and potentially obsolete inventories based on historical usage and estimated future usage. In assessing the ultimate realization of its inventories, the Company is required to make judgments as to future demand requirements. As actual future demand or market conditions may vary from those projected by the Company, adjustments to inventories may be required. The allowance for aged obsolete inventory at August 31, 2026 and February 28, 2026 was $1.9 million and $1.9 million, respectively. The aged inventory allowance is recorded primarily to account for the decrease in market value of general stock inventory that is not manufactured to specific customer order.