Inventories (Policies)

12 Months Ended

Dec. 31, 2025

Notes and other explanatory information [abstract]

Inventory

Inventory is recorded at the lower of cost or net realizable value. The cost is determined using the weighted average cost method for the purchase of materials. The cost of finished goods and work in progress comprises consumable materials, labor and other direct costs (based on normal production capacity). The net realizable value is the estimated selling price in the ordinary course of business, minus the estimated costs of completion and the estimated costs necessary to realize the sales.