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Property, plant and equipment (Tables)
 12 Months Ended
Dec. 31, 2024
Notes and other explanatory information [abstract]  
Schedule of detailed information about property, plant and equipment
             
              2024
  Lands, dams and
buildings		 Machinery, equipment, and facilities Assets and projects under construction Asset retirement obligations Mining projects (i) Other Total
 Balance at the beginning of the year              
 Cost   1,710,083   2,896,565   512,925   219,449   215,913   44,601   5,599,536
 Accumulated depreciation and impairment   (795,717)   (2,048,145)   (67,485)   (139,088)   (94,153)   (16,334)   (3,160,922)
 Balance at the beginning of the year   914,366   848,420   445,440   80,361   121,760   28,267   2,438,614
 Additions   -   667   276,839   45,891   -   85   323,482
 Disposals and write-offs   (23) (3,408)   (8,984)   - (4,111)   (53)   (16,579 )
 Depreciation   (104,929)   (113,679)   -   (5,221)   (834)   (1,201)   (225,864)
 Impairment (loss) reversal of long-lived assets - note 31   12,147 964   (7,149)   1,495 (50,197)   336   (42,404)
 Divestments – note 1 (a)   (2,990)   (4,265)   (290)   (1,377)   (4,150)   (381)   (13,453)
 Foreign exchange effects   (163,559)   (133,501)   (34,196)   (16,857)   (2,946)   (4,369)   (355,428)
 Remeasurement   -   -   -   (9,947)   -   -   (9,947)
 Transfers   243,150   112,594   (357,948)   -   30 1,261   (913)
 Balance at the end of the year   898,162   707,792   313,712   94,345   59,552   23,945   2,097,508
 Cost   1,673,095 2,515,318   381,216   204,903 208,627   34,978 5,018,137
 Accumulated depreciation and impairment   (774,933) (1,807,526)   (67,504)   (110,558) (149,075)   (11,033) (2,920,629)
 Balance at the end of the year   898,162   707,792   313,712   94,345   59,552   23,945   2,097,508
 Average annual depreciation rates %   4   9   -  UoP  UoP    

 

              2023
  Lands, dams and
buildings

Machinery, equipment,

and facilities

 Assets and projects under construction Asset retirement obligation Mining projects (i) Other Total
 Balance at the beginning of the year              
 Cost   1,512,360   2,636,582   521,191   200,665   221,077   44,094   5,135,969
 Accumulated depreciation and impairment   (671,028)   (1,870,591)   (65,386)   (125,118)   (92,652)   (15,919)   (2,840,694)
 Net balance at the beginning of the year     841,332   765,991   455,805   75,547   128,425   28,175   2,295,275
 Additions   113   953 309,039 318   - 45   310,468
 Disposals and write-offs   - (212) (3,834)   -   - (43) (4,089)
 Depreciation (90,258) (121,004)   - (5,165) (1,372) (1,212) (219,011)
 Impairment loss of long-lived assets - note 31   (16,857)   (27,748)   (10,890)   (6,691)   (7,257)   (2,513)   (71,956)
 Foreign exchange effects   47,840   43,495   18,088   4,698   1,502   1,455   117,078
 Remeasurement   -   -   -   11,654   -   -   11,654
 Transfers   132,196   186,945   (322,768)   -   462   2,360   (805)
 Balance at the end of the year   914,366   848,420   445,440   80,361   121,760   28,267   2,438,614
 Cost   1,710,083   2,896,565   512,925   219,449   215,913   44,601   5,599,536
 Accumulated depreciation and impairment   (795,717)   (2,048,145)   (67,485)   (139,088)   (94,153)   (16,334)   (3,160,922)
 Balance at the end of the year   914,366   848,420   445,440   80,361   121,760   28,267   2,438,614
 Average annual depreciation rates %   4 9   -  UoP  UoP    

 

(i) Only the amounts of the operating unit Atacocha are being depreciated under the UoP method.