| | 12-31-2017 | | 12-31-2016 | | ||
| | ThU.S.$ | | ThU.S.$ | | ||
Land | | | 160 | | | 160 | |
Buildings | | | 1,122 | | | 1,122 | |
Property, plant and equipment | | | 2,225 | | | 1,777 | |
Total | | | 3,507 | | | 3,059 | |