Inventories

Inventories consisted of the following:

	2014 г.	2013 г.
Raw materials	288 597	287 247
Work in process	344 731	467 909
Finished goods and finished goods in transit	268 246	368 857
Goods for resale	4 377	6 677
Supplies	164 185	216 681
Gross inventories	1 070 136	1 347 371
Allowance for net realisable value of inventory	(23 229)	(22 896)
Net inventories	1 046 907	1 324 475

The amount of inventories carried at net realisable value was 290,851 as at December 31, 2014 (December 31, 2013: 343,047).

As at December 31, 2014, certain items of inventory with a carrying amount of 40,489 were pledged as security for borrowings (December 31, 2013: 100,000).

The following table summarises the changes in the allowance for net realisable value of inventory:

	2014 г.	2013 г.
Balance at the beginning of the year	22 896	23 044
Increase in allowance	8 782	1 008
Currency translation adjustments	(8 449)	(1 156)
Balance at the end of the year	23 229	22 896