| | (a) | This caption is made up as follows: |
| | | Share in equity | | | | | | | | ||||
| | | 2017 | | 2016 | | 2017 | | 2016 | | ||||
| | | % | | % | | US$(000) | | US$(000) | | ||||
| | | | | | | | | | | | | | |
| Sociedad Minera Cerro Verde S.A.A. | | | 19.584 | | | 19.584 | | | 1,124,008 | | | 1,055,488 | |
| Minera Yanacocha S.R.L. | | | 45.95 | | | 43.65 | | | 324,861 | | | 402,866 | |
| Compañía Minera Coimolache S.A. | | | 40.095 | | | 40.095 | | | 86,183 | | | 74,734 | |
| Other minor investments | | | | | | | | | 1,835 | | | 3,519 | |
| | | | | | | | | | 1,536,887 | | | 1,536,607 | |