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Inventories
3 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
INVENTORIES INVENTORIES
We used the last-in, first-out (LIFO) method of valuing inventories for 38 percent and 39 percent of total inventories at September 30, 2021 and June 30, 2021, respectively. Inventory valuations under the LIFO method are based on an annual determination of quantities and costs as of June 30 of each year; therefore, the interim LIFO valuations are based on our projections of expected year-end inventory levels and costs and are subject to any final year-end LIFO inventory adjustments.
Inventories consisted of the following: 
(in thousands)September 30, 2021
June 30, 2021
Finished goods$315,030 $302,524 
Work in process and powder blends170,825 173,671 
Raw materials91,580 72,551 
Inventories at current cost577,435 548,746 
Less: LIFO valuation(72,435)(72,401)
Total inventories$505,000 $476,345