Inventories

Inventories

Carrying amount of inventories by kind* 31.12.2011 31.12.2010
Work-in-progress – construction investments 271 709 261 609
Finished goods - construction investments 216 851 195 817
Supplies  102 412 96 298
Materials  8 962 11 409
Impairment allowances on inventories (33 088) (34 858)
Total 566 846 530 275

* The balance relates mainly to expenses on real estate development incurred by the Group entities whose scope of activity relates to real estate development.

On 31 December 2011 and 31 December 2010 the Group had no inventories constituting collateral for liabilities to third parties.