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Commitments and contingencies (Tables) | 12 Months Ended
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Dec. 31, 2020
Minera Yanacocha SRL and subsidiary [Member] |
Disclosure of Commitments and contingencies [Line Items] |
Schedule of outstanding signed commitments | The table below sets out the outstanding signed commitments at year ends by financial institution.
|  | 2020 |  | 2019 |  | 2018
|  | US$(000) |  | US$(000) |  | US$(000)
Scotiabank |  | 259,027 |  | 253,317 |  | 235,000
Pacífico Zurich |  | 200,000 |  | 200,000 |  | —
La Positiva |  | 70,000 |  | 70,000 |  | —
Rimac (Travelers) |  | 60,000 |  | 60,000 |  | —
Santander |  | 25,000 |  | — |  | —
MUFG Bank |  | 25,000 |  | — |  | —
Banco de Credito del Peru (a) |  | — |  | — |  | 114,251
BBVA Continental |  | — |  | — |  | 190,000
|  | 639,027 |  | 583,317 |  | 539,251
(a)Letters of guarantee of Banco de Credito del Peru include US$6,321 related to San Jose Reservoir Trust in 2017. In 2020 and 2019 letters of guarantee were not required.

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