18. INVENTORIES       31.12. 31.12.   2005 2004 Materials and supplies 43.8 45.0 Work in progress 1.3 1.7 Total 45.1 46.7       In the financial period an expense of 0.2 million euros was recognised, equivalent to the sum by which the carrying amount of inventories was reduced to correspond with their net realisable value (0.8 million euros in 2004). The carrying amount of inventories recognised at fair value is 6.0 million euros (5.3 million euros 2004). Inventories have not been pledged for Group liabilities.