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v3.19.1

Costs applicable to sales (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Depreciation and amortization | $ 241,286 | $ 213,722 | $ 192,647
Cost of sales of goods, excluding depreciation and amortization | 982,957 | 980,254 | 824,973
Minera Yanacocha SRL and subsidiary [Member] |  |  |
Beginning balance of finished goods and in-process | 345,489 | 446,503 | 544,325
Beginning balance of provision for net realizable value, note 8(b) | (62,540) | (84,374) | (90,298)
Consumption of supplies | 215,863 | 240,881 | 228,376
Personnel expenses | 82,645 | 99,702 | 87,258
Other services | 43,672 | 66,408 | 73,779
Maintenance | 22,585 | 24,033 | 36,213
Power | 24,203 | 23,565 | 27,270
Depreciation and amortization | 156,212 | 87,783 | 140,712
Workers' profit participation | 3,837 | 1,242 | 12,394
Reclamation expenses related to leach pads, note 12(b) | 16,284 | 124,124 | 78,494
Ending balance of provision for net realizable value, note 8(b) | 89,127 | (62,540) | (84,374)
Ending balance of finished goods and in-process | (341,213) | 345,489 | 446,503
Cost of sales of goods, excluding depreciation and amortization | $ 596,164 | $ 746,918 | $ 776,394

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