XML 185 R237.htm IDEA: XBRL DOCUMENT v3.20.1
Disclosure of information on segments (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Operating income      
Net sale of goods $ 821,930 $ 1,106,329 $ 1,187,206
Net sale of services 23,661 24,001 29,697
Royalty income 22,297 20,385 20,739
Total operating income 867,888 1,150,715 1,237,642
Operating costs      
Cost of sales, excluding depreciation and amortization (512,874) (613,381) (604,650)
Cost of services (3,378) (4,318) (12,954)
Exploration in operating units 44,163 89,730 89,311
Depreciation and amortization (226,335) (238,879) (210,154)
Mining royalties (12,832) (21,388) (30,884)
Total operating costs (799,582) (967,696) (947,953)
Gross profit (loss) 68,306 183,019 289,689
Operating expenses, net      
Administrative expenses 76,297 77,099 80,666
Exploration in non-operating areas 11,879 36,307 18,262
Selling expenses (24,313) (26,948) (23,043)
Impairment loss of long-lived assets (2,083) (5,693) (21,620)
Provision for contingencies and others (2,968) (11,248) 13,740
Write - off of stripping activity asset 0 0 13,573
Other, net 14,715 (1,308) (13,230)
Total operating expenses, net (126,319) (124,721) (184,134)
Total operating expenses, net (126,319) (124,721) (184,134)
Operating profit (loss) (58,013) 58,298 105,555
Other income (expense),net      
Finance income 9,675 9,685 5,517
Net gain (loss) from currency exchange difference (734) (1,384) 2,939
Share in the results of associates under equity method 47,710 (1,144) 13,207
Finance costs (42,173) (38,422) (34,551)
Total other income (expenses), net 14,478 (31,265) (12,888)
Profit (loss) before income tax (43,535) 27,033 92,667
Income tax 25,590 (26,879) (17,888)
Income tax Current 11,911 16,882 23,713
Income tax Deferred 37,501 (9,997) 5,825
Profit (loss) from continued operations (17,945) 154 74,779
Loss from discontinued operations, see note 1(e) (10,514) (11,808) (10,344)
Net profit (loss) for the year (28,459) (11,654) 64,435
Total assets 4,107,274 4,217,221 4,332,813
Total liability 1,139,074 1,187,656 1,269,186
Other segment information      
Investment in associates 1,488,247 1,473,382 1,536,887
Capital Expenditures 102,627 111,270 259,507
Changes in estimates of mine closures plans 26,722 42,874 10,594
Fair value for contingent consideration liability (655) 1,815 1,773
Accounts receivable from sale of assets 21,648 2,715 5,371
Exploration and development mining projects [Member]      
Operating income      
Net sale of goods 0 0 0
Net sale of services 0 0 0
Royalty income 0 0 0
Total operating income 0 0 0
Operating costs      
Cost of sales, excluding depreciation and amortization 0 0 0
Cost of services 0 0 0
Exploration in operating units 0 0 0
Depreciation and amortization 0 0 0
Mining royalties 0 0 0
Total operating costs 0 0 0
Gross profit (loss) 0 0 0
Operating expenses, net      
Administrative expenses 2,416 3,143 1,604
Exploration in non-operating areas (90) (2,883) (2,771)
Selling expenses 0 0 0
Impairment loss of long-lived assets 0 0 0
Provision for contingencies and others (40) (6,130) (4,657)
Write - off of stripping activity asset     0
Other, net 419 138 (94)
Total operating expenses, net (2,965) 242 (9,126)
Operating profit (loss) (2,965) 242 (9,126)
Other income (expense),net      
Finance income 14 0 0
Net gain (loss) from currency exchange difference (156) (846) 537
Share in the results of associates under equity method 0 0 0
Finance costs (561) (222) (131)
Total other income (expenses), net (703) (1,068) 406
Profit (loss) before income tax (3,668) (826) (8,720)
Income tax     0
Income tax Current 0 0  
Income tax Deferred 0 0  
Profit (loss) from continued operations (3,668) (826) (8,720)
Loss from discontinued operations, see note 1(e) 0 0 0
Net profit (loss) for the year 0 0 0
Total assets 398,838 372,344 342,759
Total liability 23,223 18,986 14,527
Other segment information      
Investment in associates 0 0 0
Capital Expenditures 26,494 17,141 13,733
Changes in estimates of mine closures plans 0 9,063 67
Fair value for contingent consideration liability 0 1,815 0
Accounts receivable from sale of assets 0 0 0
Construction and engineering [Member]      
Operating income      
Net sale of goods     0
Net sale of services     10,603
Royalty income     0
Total operating income     10,603
Operating costs      
Cost of sales, excluding depreciation and amortization     0
Cost of services     (9,393)
Exploration in operating units     0
Depreciation and amortization     (129)
Mining royalties     0
Total operating costs     (9,522)
Gross profit (loss)     1,081
Operating expenses, net      
Administrative expenses     3,606
Exploration in non-operating areas     0
Selling expenses     0
Impairment loss of long-lived assets     0
Provision for contingencies and others     100
Write - off of stripping activity asset     0
Other, net     1,129
Total operating expenses, net     (2,377)
Operating profit (loss)     (1,296)
Other income (expense),net      
Finance income     0
Net gain (loss) from currency exchange difference     105
Share in the results of associates under equity method     0
Finance costs     (370)
Total other income (expenses), net     (265)
Profit (loss) before income tax     (1,561)
Income tax     400
Profit (loss) from continued operations     (1,961)
Loss from discontinued operations, see note 1(e)     0
Net profit (loss) for the year     0
Total assets     14,004
Total liability     5,153
Other segment information      
Investment in associates     0
Capital Expenditures     3
Changes in estimates of mine closures plans     0
Fair value for contingent consideration liability     0
Accounts receivable from sale of assets     4,053
Energy generation and transmission [Member]      
Operating income      
Net sale of goods 0 0 0
Net sale of services 59,690 62,962 60,639
Royalty income 0 0 0
Total operating income 59,690 62,962 60,639
Operating costs      
Cost of sales, excluding depreciation and amortization 0 0 0
Cost of services (22,209) (25,499) (25,556)
Exploration in operating units 0 0 0
Depreciation and amortization (10,075) (10,248) (9,651)
Mining royalties 0 0 0
Total operating costs (32,284) (35,747) (35,207)
Gross profit (loss) 27,406 27,215 25,432
Operating expenses, net      
Administrative expenses 4,073 3,972 2,423
Exploration in non-operating areas 0 0 0
Selling expenses (1,115) (1,173) (1,264)
Impairment loss of long-lived assets 0 0 0
Provision for contingencies and others 166 56 312
Write - off of stripping activity asset     0
Other, net (13,813) 562 (94)
Total operating expenses, net 8,791 (4,639) (3,469)
Operating profit (loss) 36,197 22,576 21,963
Other income (expense),net      
Finance income 263 179 139
Net gain (loss) from currency exchange difference 62 (346) 294
Share in the results of associates under equity method 10,374 8,589 8,573
Finance costs (7,483) (7,576) (10,354)
Total other income (expenses), net 3,216 846 (1,348)
Profit (loss) before income tax 39,413 23,422 20,615
Income tax     3,491
Income tax Current (4,044) 0  
Income tax Deferred (5,515) (7,584)  
Profit (loss) from continued operations 29,854 15,838 17,124
Loss from discontinued operations, see note 1(e) 0 0 0
Net profit (loss) for the year 0 0 0
Total assets 382,481 366,354 360,610
Total liability 183,426 197,152 205,247
Other segment information      
Investment in associates 89,786 0 0
Capital Expenditures 223 118 852
Changes in estimates of mine closures plans 0 0 0
Fair value for contingent consideration liability 0 0 0
Accounts receivable from sale of assets 21,023 0 0
Insurance brokerage [Member]      
Operating income      
Net sale of goods 0 0 0
Net sale of services 15,687 14,986 14,377
Royalty income 0 0 0
Total operating income 15,687 14,986 14,377
Operating costs      
Cost of sales, excluding depreciation and amortization 0 0 0
Cost of services 0 0 0
Exploration in operating units 0 0 0
Depreciation and amortization 0 0 0
Mining royalties 0 0 0
Total operating costs 0 0 0
Gross profit (loss) 15,687 14,986 14,377
Operating expenses, net      
Administrative expenses 11,607 11,900 12,288
Exploration in non-operating areas 0 0 0
Selling expenses 0 0 0
Impairment loss of long-lived assets 0 0 0
Provision for contingencies and others 0 0 0
Write - off of stripping activity asset     0
Other, net 0 0 (4)
Total operating expenses, net (11,607) (11,900) (12,292)
Operating profit (loss) 4,080 3,086 2,085
Other income (expense),net      
Finance income 15 0 1
Net gain (loss) from currency exchange difference (119) 19 (75)
Share in the results of associates under equity method 0 0 0
Finance costs (89) (2) (6)
Total other income (expenses), net (193) 17 (80)
Profit (loss) before income tax 3,887 3,103 2,005
Income tax     742
Income tax Current (1,223) 0  
Income tax Deferred 91 0  
Profit (loss) from continued operations 2,755 3,103 1,263
Loss from discontinued operations, see note 1(e) 0 0 0
Net profit (loss) for the year 0 0 0
Total assets 13,822 12,154 9,004
Total liability 6,007 4,597 4,616
Other segment information      
Investment in associates 0 0 0
Capital Expenditures 85 0 14
Changes in estimates of mine closures plans 0 0 0
Fair value for contingent consideration liability 0 0 0
Accounts receivable from sale of assets 0 0 0
Rental of mining concessions [Member]      
Operating income      
Net sale of goods 0 0 0
Net sale of services 0 0 0
Royalty income 22,297 20,385 20,739
Total operating income 22,297 20,385 20,739
Operating costs      
Cost of sales, excluding depreciation and amortization 0 0 0
Cost of services 0 0 0
Exploration in operating units 0 0 0
Depreciation and amortization 0 0 0
Mining royalties 0 0 0
Total operating costs 0 0 0
Gross profit (loss) 22,297 20,385 20,739
Operating expenses, net      
Administrative expenses 188 220 90
Exploration in non-operating areas 0 0 0
Selling expenses 0 0 0
Impairment loss of long-lived assets 0 0 0
Provision for contingencies and others 0 0 0
Write - off of stripping activity asset     0
Other, net (135) 0 (1)
Total operating expenses, net (53) (220) (91)
Operating profit (loss) 22,244 20,165 20,648
Other income (expense),net      
Finance income 30 21 7
Net gain (loss) from currency exchange difference (9) 18 (41)
Share in the results of associates under equity method 0 0 0
Finance costs (4) (11) (2)
Total other income (expenses), net 17 28 (36)
Profit (loss) before income tax 22,261 20,193 20,612
Income tax     6,044
Income tax Current (6,546) (6,025)  
Income tax Deferred 0 0  
Profit (loss) from continued operations 15,715 14,168 14,568
Loss from discontinued operations, see note 1(e) 0 0 0
Net profit (loss) for the year 0 0 0
Total assets 6,252 7,154 6,611
Total liability 2,286 2,653 2,378
Other segment information      
Investment in associates 0 0 0
Capital Expenditures 0 0 0
Changes in estimates of mine closures plans 0 0 0
Fair value for contingent consideration liability 0 0 0
Accounts receivable from sale of assets 0 0 0
Holding of investment in shares [Member]      
Operating income      
Net sale of goods 0 0 0
Net sale of services 615 615 615
Royalty income 0 0 0
Total operating income 615 615 615
Operating costs      
Cost of sales, excluding depreciation and amortization 0 0 0
Cost of services 0 0 0
Exploration in operating units 0 0 0
Depreciation and amortization 0 0 0
Mining royalties 0 0 0
Total operating costs 0 0 0
Gross profit (loss) 615 615 615
Operating expenses, net      
Administrative expenses 363 512 413
Exploration in non-operating areas 0 0 0
Selling expenses 0 0 0
Impairment loss of long-lived assets 0 0 0
Provision for contingencies and others 0 0 0
Write - off of stripping activity asset     0
Other, net (79) 2,773 0
Total operating expenses, net (284) 2,261 (413)
Operating profit (loss) 331 2,876 202
Other income (expense),net      
Finance income 10 8 1
Net gain (loss) from currency exchange difference (9) 2 (4)
Share in the results of associates under equity method (53,143) (25,517) (66,187)
Finance costs (6) (25) (2)
Total other income (expenses), net (53,148) (25,532) (66,192)
Profit (loss) before income tax (52,817) (22,656) (65,990)
Income tax     38
Income tax Current (39) (444)  
Income tax Deferred 0 0  
Profit (loss) from continued operations (52,856) (23,100) (66,028)
Loss from discontinued operations, see note 1(e) 0 0 0
Net profit (loss) for the year 0 0 0
Total assets 458,212 520,484 988,841
Total liability 101 603 414
Other segment information      
Investment in associates 232,154 0 0
Capital Expenditures 0 0 0
Changes in estimates of mine closures plans 0 0 0
Fair value for contingent consideration liability 0 0 0
Accounts receivable from sale of assets 0 1,622 0
Industrial activities [Member]      
Operating income      
Net sale of goods 6,046 6,655 6,317
Net sale of services 19,557 19,908 19,658
Royalty income 0 0 0
Total operating income 25,603 26,563 25,975
Operating costs      
Cost of sales, excluding depreciation and amortization (8,517) (6,280) (6,043)
Cost of services (6,167) (8,966) (9,354)
Exploration in operating units 0 0 0
Depreciation and amortization (11,979) (11,483) (11,134)
Mining royalties 0 0 0
Total operating costs (26,663) (26,729) (26,531)
Gross profit (loss) (1,060) (166) (556)
Operating expenses, net      
Administrative expenses 1,310 1,627 1,203
Exploration in non-operating areas 0 0 0
Selling expenses (1,324) (924) (775)
Impairment loss of long-lived assets 0 0 0
Provision for contingencies and others 0 (2) 0
Write - off of stripping activity asset     0
Other, net (341) 194 216
Total operating expenses, net (2,293) (2,355) (1,762)
Operating profit (loss) (3,353) (2,521) (2,318)
Other income (expense),net      
Finance income 277 127 79
Net gain (loss) from currency exchange difference 208 (482) 497
Share in the results of associates under equity method 0 0 0
Finance costs (990) (932) (941)
Total other income (expenses), net (505) (1,287) (365)
Profit (loss) before income tax (3,858) (3,808) (2,683)
Income tax     (1,818)
Income tax Current 0 (2)  
Income tax Deferred 1,554 106  
Profit (loss) from continued operations (2,304) (3,704) (865)
Loss from discontinued operations, see note 1(e) 0 0 0
Net profit (loss) for the year 0 0 0
Total assets 104,335 106,391 109,669
Total liability 20,918 20,671 20,245
Other segment information      
Investment in associates 0 0 0
Capital Expenditures 1,443 1,816 459
Changes in estimates of mine closures plans 0 0 0
Fair value for contingent consideration liability 0 0 0
Accounts receivable from sale of assets 0 0 0
Corporates [Member]      
Operating income      
Net sale of goods   0 34,650
Net sale of services   0 0
Royalty income   0 0
Total operating income   0 34,650
Operating costs      
Cost of sales, excluding depreciation and amortization   0 (34,029)
Cost of services   0 0
Exploration in operating units   0 0
Depreciation and amortization   0 0
Mining royalties   0 0
Total operating costs   0 (34,029)
Gross profit (loss)   0 621
Operating expenses, net      
Administrative expenses   (2,377) (443)
Exploration in non-operating areas   (4,091) (5,052)
Selling expenses   0 (167)
Impairment loss of long-lived assets   0 0
Provision for contingencies and others   111 378
Write - off of stripping activity asset     0
Other, net   (2,235) (2,012)
Total operating expenses, net   (4,060) (6,410)
Operating profit (loss)   (4,060) (5,789)
Other income (expense),net      
Finance income   9,293 5,614
Net gain (loss) from currency exchange difference   (206) 1,365
Share in the results of associates under equity method   15,081 21,194
Finance costs   (17,194) (8,980)
Total other income (expenses), net   6,974 19,193
Profit (loss) before income tax   2,914 13,404
Income tax     9,052
Income tax Current   0  
Income tax Deferred   9,514  
Profit (loss) from continued operations   12,428 4,352
Loss from discontinued operations, see note 1(e)   0 0
Net profit (loss) for the year   0 0
Total assets   2,421,547 1,950,147
Total liability   425,893 431,505
Other segment information      
Investment in associates   1,473,382 1,536,887
Capital Expenditures   2,968 2,189
Changes in estimates of mine closures plans   (341) 6
Fair value for contingent consideration liability   0 1,773
Accounts receivable from sale of assets   1,093 1,318
Ucchuchacua [Member]      
Operating income      
Net sale of goods 186,016 257,282 272,334
Net sale of services 0 0 0
Royalty income 0 0 0
Total operating income 186,016 257,282 272,334
Operating costs      
Cost of sales, excluding depreciation and amortization (128,523) (151,817) (143,288)
Cost of services 0 0 0
Exploration in operating units 8,917 (20,898) (27,068)
Depreciation and amortization (21,053) (26,181) (23,899)
Mining royalties (1,955) (2,243) (2,280)
Total operating costs (160,448) (201,139) (196,535)
Gross profit (loss) 25,568 56,143 75,799
Operating expenses, net      
Administrative expenses 16,115 24,119 19,473
Exploration in non-operating areas (2,534) (18,339) (2,676)
Selling expenses (6,876) (8,213) (6,078)
Impairment loss of long-lived assets 0 0 0
Provision for contingencies and others (183) (6,784) (7,040)
Write - off of stripping activity asset     0
Other, net 4,147 (5,953) (1,799)
Total operating expenses, net (29,855) (49,840) (37,066)
Operating profit (loss) (4,287) 6,303 38,733
Other income (expense),net      
Finance income 0 0 0
Net gain (loss) from currency exchange difference (124) 196 31
Share in the results of associates under equity method 0 0 0
Finance costs (532) (308) (285)
Total other income (expenses), net (656) (112) (254)
Profit (loss) before income tax (4,943) 6,191 38,479
Income tax     1,101
Income tax Current 0 (768)  
Income tax Deferred 0 0  
Profit (loss) from continued operations (4,943) 5,423 37,378
Loss from discontinued operations, see note 1(e) 0 0 0
Net profit (loss) for the year 0 0 0
Total assets 146,486 126,374 146,464
Total liability 42,265 45,227 49,723
Other segment information      
Investment in associates 0 0 0
Capital Expenditures 31,479 18,429 18,127
Changes in estimates of mine closures plans 176 4,101 1,380
Fair value for contingent consideration liability 0 0 0
Accounts receivable from sale of assets 0 0 0
Orcopampa [Member]      
Operating income      
Net sale of goods 58,902 153,003 256,960
Net sale of services 0 0 0
Royalty income 0 0 0
Total operating income 58,902 153,003 256,960
Operating costs      
Cost of sales, excluding depreciation and amortization (54,739) (97,006) (115,574)
Cost of services 0 0 0
Exploration in operating units 9,040 (29,563) (38,820)
Depreciation and amortization (7,563) (8,802) (8,846)
Mining royalties (5,220) (13,669) (22,436)
Total operating costs (76,562) (149,040) (185,676)
Gross profit (loss) (17,660) 3,963 71,284
Operating expenses, net      
Administrative expenses 5,209 15,100 18,281
Exploration in non-operating areas 0 0 0
Selling expenses (258) (775) (1,016)
Impairment loss of long-lived assets 0 0 0
Provision for contingencies and others 1 121 (1)
Write - off of stripping activity asset     0
Other, net 8,104 (3,386) (715)
Total operating expenses, net (13,570) (19,382) (20,013)
Operating profit (loss) (31,230) (15,419) 51,271
Other income (expense),net      
Finance income 0 0 0
Net gain (loss) from currency exchange difference 76 168 (63)
Share in the results of associates under equity method 0 0 0
Finance costs (733) (395) (354)
Total other income (expenses), net (657) (227) (417)
Profit (loss) before income tax (31,887) (15,646) 50,854
Income tax     1,085
Income tax Current 0 (559)  
Income tax Deferred 0 0  
Profit (loss) from continued operations (31,887) (16,205) 49,769
Loss from discontinued operations, see note 1(e) 0 0 0
Net profit (loss) for the year 0 0 0
Total assets 46,750 39,725 54,114
Total liability 36,945 30,749 42,242
Other segment information      
Investment in associates 0 0 0
Capital Expenditures 1,323 6,225 12,674
Changes in estimates of mine closures plans 10,493 1,003 3,710
Fair value for contingent consideration liability 0 0 0
Accounts receivable from sale of assets 0 0 0
Julcani [Member]      
Operating income      
Net sale of goods 40,082 34,104 42,785
Net sale of services 0 0 0
Royalty income 0 0 0
Total operating income 40,082 34,104 42,785
Operating costs      
Cost of sales, excluding depreciation and amortization (26,586) (26,558) (31,190)
Cost of services 0 0 0
Exploration in operating units 5,864 (8,646) (13,009)
Depreciation and amortization (9,178) (3,353) (8,122)
Mining royalties (418) (237) (354)
Total operating costs (42,046) (38,794) (52,675)
Gross profit (loss) (1,964) (4,690) (9,890)
Operating expenses, net      
Administrative expenses 3,561 2,524 2,878
Exploration in non-operating areas 0 0 0
Selling expenses (403) (356) (605)
Impairment loss of long-lived assets (2,083) 0 0
Provision for contingencies and others (148) (947) (460)
Write - off of stripping activity asset     0
Other, net 776 (1,050) (1,403)
Total operating expenses, net (6,971) (2,983) (5,346)
Operating profit (loss) (8,935) (7,673) (15,236)
Other income (expense),net      
Finance income 0 0 0
Net gain (loss) from currency exchange difference 3 8 (75)
Share in the results of associates under equity method 0 0 0
Finance costs (1,002) (95) (106)
Total other income (expenses), net (999) (87) (181)
Profit (loss) before income tax (9,934) (7,760) (15,417)
Income tax     153
Income tax Current 0 (72)  
Income tax Deferred 0 0  
Profit (loss) from continued operations (9,934) (7,832) (15,570)
Loss from discontinued operations, see note 1(e) 0 0 0
Net profit (loss) for the year 0 0 0
Total assets 41,858 39,537 20,922
Total liability 35,045 29,469 18,099
Other segment information      
Investment in associates 0 0 0
Capital Expenditures 1,559 2,984 1,951
Changes in estimates of mine closures plans 2,430 16,484 (761)
Fair value for contingent consideration liability 0 0 0
Accounts receivable from sale of assets 0 0 0
Colquijirca [Member]      
Operating income      
Net sale of goods 299,252 333,560 322,653
Net sale of services 0 0 0
Royalty income 0 0 0
Total operating income 299,252 333,560 322,653
Operating costs      
Cost of sales, excluding depreciation and amortization (223,998) (216,560) (193,874)
Cost of services 0 0 0
Exploration in operating units 8,727 (9,996) 0
Depreciation and amortization (74,335) (67,666) (57,199)
Mining royalties (2,953) (2,345) (3,317)
Total operating costs (310,013) (296,567) (254,390)
Gross profit (loss) (10,761) 36,993 68,263
Operating expenses, net      
Administrative expenses 8,865 9,906 13,061
Exploration in non-operating areas (2,011) (7,199) (1,976)
Selling expenses (10,856) (12,201) (10,914)
Impairment loss of long-lived assets 0 0 0
Provision for contingencies and others 2,079 3,711 0
Write - off of stripping activity asset     13,573
Other, net 6,568 32,565 (2,922)
Total operating expenses, net (26,221) (452) (42,446)
Operating profit (loss) (36,982) 36,541 25,817
Other income (expense),net      
Finance income 417 418 179
Net gain (loss) from currency exchange difference (191) 108 310
Share in the results of associates under equity method (44) 0 0
Finance costs (11,440) (10,365) (12,017)
Total other income (expenses), net (11,258) (9,839) (11,528)
Profit (loss) before income tax (48,240) 26,702 14,289
Income tax     3,903
Income tax Current (25) (8,332)  
Income tax Deferred 15,410 (10,803)  
Profit (loss) from continued operations (32,855) 7,567 10,386
Loss from discontinued operations, see note 1(e) 0 0 0
Net profit (loss) for the year 0 0 0
Total assets 725,973 773,554 792,594
Total liability 329,869 340,735 388,899
Other segment information      
Investment in associates 0 0 0
Capital Expenditures 28,298 29,572 61,060
Changes in estimates of mine closures plans 5,122 19,926 5,326
Fair value for contingent consideration liability 0 0 0
Accounts receivable from sale of assets 0 0 0
La Zanja [Member]      
Operating income      
Net sale of goods 43,520 96,611 165,319
Net sale of services 0 0 0
Royalty income 0 0 0
Total operating income 43,520 96,611 165,319
Operating costs      
Cost of sales, excluding depreciation and amortization (39,693) (68,993) (102,474)
Cost of services 0 0 0
Exploration in operating units 2 (74) (871)
Depreciation and amortization (9,103) (34,088) (48,385)
Mining royalties (429) (957) (1,499)
Total operating costs (49,227) (104,112) (153,229)
Gross profit (loss) (5,707) (7,501) 12,090
Operating expenses, net      
Administrative expenses 2,223 3,435 2,814
Exploration in non-operating areas (2,784) (5,002) (2,870)
Selling expenses (321) (784) (881)
Impairment loss of long-lived assets 0 (5,693) (21,620)
Provision for contingencies and others (98) 57 (1,370)
Write - off of stripping activity asset     0
Other, net 1,119 (669) (970)
Total operating expenses, net (6,545) (4,254) (30,525)
Operating profit (loss) (12,252) (11,755) (18,435)
Other income (expense),net      
Finance income 2,006 1,649 670
Net gain (loss) from currency exchange difference 14 (224) 48
Share in the results of associates under equity method 0 0 0
Finance costs (3,715) (1,946) (1,919)
Total other income (expenses), net (1,695) (521) (1,201)
Profit (loss) before income tax (13,947) (12,276) (19,636)
Income tax     (6,841)
Income tax Current (35) (24)  
Income tax Deferred (5,382) (1,220)  
Profit (loss) from continued operations (19,364) (13,520) (12,795)
Loss from discontinued operations, see note 1(e) 0 0 0
Net profit (loss) for the year 0 0 0
Total assets 138,458 158,718 190,310
Total liability 68,100 68,615 87,008
Other segment information      
Investment in associates 0 0 0
Capital Expenditures 1,629 13,159 17,326
Changes in estimates of mine closures plans 5,021 (6,915) 462
Fair value for contingent consideration liability 0 0 0
Accounts receivable from sale of assets 0 0 0
Tambomayo [Member]      
Operating income      
Net sale of goods 188,175 225,281 118,966
Net sale of services 0 0 0
Royalty income 0 0 0
Total operating income 188,175 225,281 118,966
Operating costs      
Cost of sales, excluding depreciation and amortization (76,827) (92,829) (53,555)
Cost of services 0 0 0
Exploration in operating units 11,613 (20,553) (9,543)
Depreciation and amortization (83,657) (77,029) (42,789)
Mining royalties (1,857) (1,936) (998)
Total operating costs (173,954) (192,347) (106,885)
Gross profit (loss) 14,221 32,934 12,081
Operating expenses, net      
Administrative expenses 16,512 17,822 9,139
Exploration in non-operating areas 0 0 (3,214)
Selling expenses (3,940) (3,046) (1,387)
Impairment loss of long-lived assets 0 0 0
Provision for contingencies and others 127 (1,263) (1,002)
Write - off of stripping activity asset     0
Other, net 3,767 (5,599) (175)
Total operating expenses, net (24,092) (25,204) (14,917)
Operating profit (loss) (9,871) 7,730 (2,836)
Other income (expense),net      
Finance income 0 0 0
Net gain (loss) from currency exchange difference (12) 209 10
Share in the results of associates under equity method 0 0 0
Finance costs (505) (262) (372)
Total other income (expenses), net (517) (53) (362)
Profit (loss) before income tax (10,388) 7,677 (3,198)
Income tax     538
Income tax Current 0 (656)  
Income tax Deferred 0 0  
Profit (loss) from continued operations (10,388) 7,021 (3,736)
Loss from discontinued operations, see note 1(e) 0 0 0
Net profit (loss) for the year 0 0 0
Total assets 425,297 461,335 538,057
Total liability 34,142 28,502 32,501
Other segment information      
Investment in associates 0 0 0
Capital Expenditures 9,641 18,858 131,119
Changes in estimates of mine closures plans 2,277 (447) 404
Fair value for contingent consideration liability 0 0 0
Accounts receivable from sale of assets 0 0 0
Operating Segments [Member]      
Operating income      
Net sale of goods 4,687,758 5,021,362 5,271,881
Net sale of services 100,325 120,436 127,762
Royalty income 22,297 20,385 20,739
Total operating income 4,810,380 5,162,183 5,420,382
Operating costs      
Cost of sales, excluding depreciation and amortization (3,540,428) (3,643,736) (3,316,204)
Cost of services (29,536) (36,682) (46,365)
Exploration in operating units 44,163 (89,730) (89,311)
Depreciation and amortization (226,943) (238,850) (210,154)
Mining royalties (12,832) (21,387) (30,884)
Total operating costs (3,853,902) (4,030,385) (3,692,918)
Gross profit (loss) 956,478 1,131,798 1,727,464
Operating expenses, net      
Administrative expenses 83,718 100,330 95,419
Exploration in non-operating areas (11,911) (37,514) (18,559)
Selling expenses (27,978) (31,234) (169,624)
Impairment loss of long-lived assets (2,083) (5,693) (21,620)
Provision for contingencies and others 2,971 (11,070) (13,740)
Write - off of stripping activity asset     13,573
Other, net 54,872 (59,140) (331,769)
Total operating expenses, net (177,591) (211,455) (664,304)
Operating profit (loss) 778,887 920,343 1,063,160
Other income (expense),net      
Finance income 40,547 51,589 18,091
Net gain (loss) from currency exchange difference 8,015 1,877 19,689
Share in the results of associates under equity method 2,965 (1,847) (36,420)
Finance costs (220,843) (508,025) (279,821)
Total other income (expenses), net (169,316) (456,406) (278,461)
Profit (loss) before income tax 609,571 463,937 784,699
Income tax     534,319
Income tax Current (401,248) (395,825)  
Income tax Deferred 52,519 (3,974)  
Profit (loss) from continued operations 260,842 64,138 250,380
Loss from discontinued operations, see note 1(e) 0 0 0
Net profit (loss) for the year 0 0 0
Total assets 15,777,279 15,369,524 15,614,979
Total liability 5,612,754 5,248,748 5,315,362
Other segment information      
Investment in associates 2,395,685 1,473,382 1,536,887
Capital Expenditures 102,627 111,270 259,507
Changes in estimates of mine closures plans 26,722 42,874 10,594
Fair value for contingent consideration liability (655) 1,815 1,773
Accounts receivable from sale of assets 21,648 2,715 5,371
Elimination of intersegment amounts [member]      
Operating income      
Net sale of goods (3,865,828) (3,915,033) (4,084,675)
Net sale of services (76,664) (96,435) (98,065)
Royalty income   0 0
Total operating income (3,942,492) (4,011,468) (4,182,740)
Operating costs      
Cost of sales, excluding depreciation and amortization 3,027,554 3,030,355 2,711,554
Cost of services 26,158 32,364 33,411
Exploration in operating units   0 0
Depreciation and amortization 608 29 0
Mining royalties   1 0
Total operating costs 3,054,320 3,062,689 2,744,965
Gross profit (loss) (888,172) (948,779) (1,437,775)
Operating expenses, net      
Administrative expenses (7,421) (23,231) (14,753)
Exploration in non-operating areas 32 1,207 297
Selling expenses 3,665 4,286 146,581
Impairment loss of long-lived assets   0 0
Provision for contingencies and others (3) (178) 0
Write - off of stripping activity asset     0
Other, net (40,157) 57,832 318,539
Total operating expenses, net 51,272 86,734 480,170
Operating profit (loss) (836,900) (862,045) (957,605)
Other income (expense),net      
Finance income (30,872) (41,904) (12,574)
Net gain (loss) from currency exchange difference (8,749) (3,261) (16,750)
Share in the results of associates under equity method 44,745 703 49,627
Finance costs 178,670 469,603 245,270
Total other income (expenses), net 183,794 425,141 265,573
Profit (loss) before income tax (653,106) (436,904) (692,032)
Income tax     (516,431)
Income tax Current 389,337 378,943  
Income tax Deferred (15,018) (6,023)  
Profit (loss) from continued operations (278,787) (63,984) (175,601)
Loss from discontinued operations, see note 1(e)   0 0
Net profit (loss) for the year   0 0
Total assets (11,670,005) (11,152,303) (11,282,166)
Total liability (4,473,680) (4,061,092) (4,046,176)
Other segment information      
Investment in associates (907,438) 0 0
Capital Expenditures   0 0
Changes in estimates of mine closures plans   0 0
Fair value for contingent consideration liability   0 0
Accounts receivable from sale of assets   0 0
Minera Yanacocha S.R.L. [Member]      
Operating income      
Net sale of goods 734,526 635,393 645,176
Net sale of services 4,776 21,965 21,870
Total operating income 739,302 657,358 667,046
Operating costs      
Cost of sales, excluding depreciation and amortization (692,721) (596,164) (746,918)
Cost of services (1,160) (2,217) (2,062)
Total operating costs (693,881) (598,381) (748,980)
Gross profit (loss) 45,421 58,977 (81,934)
Operating expenses, net      
Administrative expenses 1,744 2,783 4,760
Selling expenses (1,722) (2,627) (3,922)
Impairment loss of long-lived assets   0  
Other, net 35,987 (76,155) (63,512)
Total operating expenses, net (39,453) (81,565) (72,194)
Operating profit (loss) 5,968 (22,588) (154,128)
Other income (expense),net      
Finance income 18,859 11,448 5,831
Net gain (loss) from currency exchange difference 2,902 (2,056) 3,636
Share in the results of associates under equity method 0    
Finance costs (58,059) (39,024) (23,766)
Total other income (expenses), net (36,298) (29,632) (14,299)
Profit (loss) before income tax (30,330) (52,220) (168,427)
Income tax     7,026
Income tax Current (64,927) (30,368)  
Income tax Deferred   1,071  
Profit (loss) from continued operations (95,257) (81,517) (175,453)
Net profit (loss) for the year (95,257) (81,517) (175,454)
Total assets 2,327,714 2,047,472 2,019,332
Total liability 1,838,002 1,463,749 1,360,217
Other segment information      
Investment in associates 230,000 271,036  
Minera Yanacocha S.R.L. [Member] | Corporates [Member]      
Operating expenses, net      
Administrative expenses 4,894    
Exploration in non-operating areas (4,492)    
Provision for contingencies and others 1,067    
Other, net 2,686    
Total operating expenses, net (11,005)    
Operating profit (loss) (11,005)    
Other income (expense),net      
Finance income 7,751    
Net gain (loss) from currency exchange difference (481)    
Share in the results of associates under equity method 45,778    
Finance costs (16,249)    
Total other income (expenses), net 36,799    
Profit (loss) before income tax 25,794    
Income tax Deferred 31,344    
Profit (loss) from continued operations 57,138    
Total assets 2,371,464    
Total liability 407,153    
Other segment information      
Investment in associates 2,073,745    
Capital Expenditures 453    
Changes in estimates of mine closures plans 1,203    
Fair value for contingent consideration liability (655)    
Accounts receivable from sale of assets 625    
Sociedad Minera Cerro Verde S.A.A. [Member]      
Operating income      
Net sale of goods 2,890,066 3,054,026 3,202,931
Total operating income 2,890,066 3,054,026 3,202,931
Operating costs      
Cost of sales, excluding depreciation and amortization (2,101,668) (2,216,663) (1,768,238)
Cost of services (181,215) (159,514) (144,829)
Depreciation and amortization (523,512) (512,298) (456,467)
Mining royalties (6,828) (7,904) (8,335)
Total operating costs (2,101,668) (2,216,663) (1,768,238)
Gross profit (loss) 788,398 837,363 1,434,693
Operating expenses, net      
Selling expenses (109,483) (137,008) (141,669)
Impairment loss of long-lived assets   0  
Other, net     (258,826)
Total operating expenses, net     (400,495)
Operating profit (loss) 788,398 837,363 1,034,198
Other income (expense),net      
Finance income 10,356 28,089 5,350
Net gain (loss) from currency exchange difference 5,574 6,161 13,288
Share in the results of associates under equity method 0    
Finance costs (115,877) (426,733) (216,912)
Total other income (expenses), net (99,947) (392,483) (198,274)
Profit (loss) before income tax 688,451 444,880 835,924
Income tax 298,074 325,170 486,043
Income tax Current (298,074) (325,170)  
Income tax Deferred (139,934) (61,483) 167,541
Profit (loss) from continued operations 390,377 119,710 349,881
Net profit (loss) for the year 390,377,000 119,710,000 349,881,000
Total assets 7,809,424 7,554,712 7,691,007
Total liability 2,460,175 2,445,840 2,501,845
Compania Minera Coimolache S.A. [Member]      
Operating income      
Net sale of goods 241,173 225,447 203,790
Total operating income 241,173 225,447 203,790
Operating costs      
Cost of sales, excluding depreciation and amortization (187,156) (170,866) (121,021)
Total operating costs (187,156) (170,866) (121,021)
Gross profit (loss) 54,017 54,581 82,769
Operating expenses, net      
Administrative expenses 4,638 5,644 3,829
Selling expenses (1,163) (1,135) (946)
Impairment loss of long-lived assets   0  
Other, net 5,667 (325) (587)
Total operating expenses, net (11,468) (7,104) (5,362)
Operating profit (loss) 42,549 47,477 77,407
Other income (expense),net      
Finance income 549 357 220
Net gain (loss) from currency exchange difference 277 (852) (174)
Share in the results of associates under equity method 0    
Finance costs (3,598) (2,935) (3,304)
Total other income (expenses), net (2,772) (3,430) (3,258)
Profit (loss) before income tax 39,777 44,047 74,149
Income tax     23,362
Income tax Current (26,335) (23,405)  
Income tax Deferred 15,017 4,942  
Profit (loss) from continued operations 28,459 25,584 50,787
Net profit (loss) for the year 28,459 25,584 50,787
Total assets 379,915 361,669 380,534
Total liability 125,097 125,307 $ 150,743
Other segment information      
Investment in associates $ 98,426 $ 89,554