| Thousands of U.S. dollars |
| Balance at December 31, 2015 | | Additions | | Acquisitions from business combination | | Disposals | | Transfers | | Translation differences | | Balance at December 31, 2016 |
| Cost | | | | | | | | | | | | | |
| Land and natural resources | 37 | | - | | - | | (38) | | - | | 1 | | - |
| Buildings | 9,733 | | - | | - | | - | | 285 | | (226) | | 9,792 |
| Plant and machinery | 9,330 | | 144 | | - | | (86) | | 536 | | (3,081) | | 6,843 |
| Furniture, tools and other tangible assets | 243,166 | | 20,984 | | 477 | | (26,155) | | 12,310 | | 66,446 | | 317,228 |
| PP&E under construction | 36,267 | | 11,496 | | 14 | | (113) | | (13,131) | | (25,269) | | 9,264 |
| Total cost | 298,533 | | 32,624 | | 491 | | (26,392) | | - | | 37,871 | | 343,127 |
| Accumulated depreciation | | | | | | | | | | | | | |
| Buildings | (3,626) | | (108) | | - | | 402 | | - | | 100 | | (3,232) |
| Plant and machinery | (4,171) | | (1,130) | | - | | 370 | | - | | 863 | | (4,068) |
| Furniture, tools and other tangible assets | (99,058) | | (45,210) | | - | | 19,744 | | - | | (46,033) | | (170,557) |
| Total accumulated depreciation | (106,855) | | (46,448) | | - | | 20,516 | | - | | (45,070) | | (177,857) |
| Property, plant and equipment | 191,678 | | (13,824) | | 491 | | (5,876) | | - | | (7,199) | | 165,270 |
