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Inventories
6 Months Ended
Mar. 31, 2026
Inventory Disclosure [Abstract]  
Inventories

NOTE F – INVENTORIES

Inventories are carried at the lower of cost or net realizable value. Inventories are stated at cost using the weighted-average cost method. This method values inventories using average costs for raw materials and most recent production costs for labor and overhead.

The following table summarizes Ashland’s inventories as of:

 

 

 

March 31

 

 

September 30

 

(In millions)

 

2026

 

 

2025

 

Finished products

 

$

371

 

 

$

421

 

Raw materials, supplies and work in process

 

 

135

 

 

 

147

 

 

 

$

506

 

 

$

568