6. Finance costs

For the period 01.01.2014 - 31.12.2014For the period 01.01.2013 - 31.12.2013
Interest expense on:
Bank loans and overdrafts 34 244 32 364
Cash pooling 2 866 2 440
Loans 237 595
Finance leases 1 925 2 405
Factoring 537 131
Receivables discounting 1 442 557
Trade payables 243 -102
Tax liabilities 1 425 484
Other 8 747 9 835
51 666 48 709
Loss on disposal of financial investments:
Loss on disposal of financial investments 22 814
22 814
Loss from valuation of financial assets and liabilities:
Net change in fair value of financial assets at fair value through profit or loss 889 400
Net change in fair value of financial liabilities at fair value through profit or loss - 715
889 1 115
Other finance costs:
Foreign exchange losses - 1 384
Unwind of discount on provisions and loans 3 909 2 402
Other finance costs 1 912 1 801
5 821 5 587
58 398 56 225