17.
Inventories
| As at Dec 31 2014 | As at Dec 31 2013 | |
|---|---|---|
| Materials | ||
| At cost, including: | 3,176 | 3,365 |
| - gas fuel | 2,389 | 2,513 |
| - fuels for electricity and heat generation | 331 | 343 |
| At net realisable value, including: | 3,064 | 3,338 |
| - gas fuel | 2,321 | 2,513 |
| - fuels for electricity and heat generation | 331 | 343 |
| Semi-finished products and work in progress | ||
| At cost | 47 | 10 |
| At net realisable value | 47 | 10 |
| Finished goods | ||
| At cost | 43 | 35 |
| At net realisable value | 42 | 27 |
| Merchandise | ||
| At cost | 36 | 3 |
| At net realisable value | 36 | 3 |
| Total inventories at cost | 3,302 | 3,413 |
| Total inventories, at the lower of cost and net realisable value | 3,189 | 3,378 |
17.1. (Increase)/decrease in inventories in the period
| Year ended Dec 31 2014 | Year ended Dec 31 2013 | |
|---|---|---|
| Inventories at cost, at beginning of the period | 3,413 | 3,093 |
| Purchase | 21,892 | 20,274 |
| Other increases | 215 | 95 |
| Inventories recognised as expenses for the period | (21,606) | (19,609) |
| Currency translation differences | 1 | (2) |
| Other decreases | (613) | (438) |
| Inventories at cost, at end of the period | 3,302 | 3,413 |
| Impairment loss on inventories | (113) | (35) |
| Total net inventories at end of the period | 3,189 | 3,378 |
17.2. Impairment losses on inventories
| As at Dec 31 2014 | As at Dec 31 2013 | |
|---|---|---|
| Impairment losses at beginning of the period | (36) | (29) |
| Increase in impairment losses | (228) | (18) |
| Reversal of impairment losses | 152 | 12 |
| Currency translation differences | (1) | - |
| Impairment losses at end of the period | (113) | (35) |