n) Inventories
Inventories are valued at the lower of historical cost or net realizable value. The historical costs are determined using the weighted average method, Historical cost includes all expenses incurred in bringing the inventories to their present location and condition. This includes mainly import duties and transport cost. Purchase discounts and rebates are deducted in determining the cost of inventories. The net realizable value is the estimated selling price in the ordinary course of business less the estimated costs necessary to make the sale. Inventory allowances are set up in the case of slow-moving and obsolete stock. Expired items are fully written off.