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Other, net
 12 Months Ended
Dec. 31, 2018
Disclosure of Other net [Abstract]  
Disclosure of other operating income (expense) [text block]
26.
Other, net
 
 
(a)
This caption is made up as follows:
 
 
 
2018
 
 
2017
 
 
2016
 
 
 
US$(000)
 
 
US$(000)
 
 
US$(000)
 
 
 
 
 
 
 
 
 
 
 
Other income
 
 
 
 
 
 
 
 
 
 
 
 
Insurance claim recovery, note 7(g)
 
 
33,735
 
 
 
1,190
 
 
 
2,936
 
Sale of supplies and merchandise to third parties
 
 
46,136
 
 
 
54,505
 
 
 
50,973
 
Sale of investment in subsidiary, note 1(d)
 
 
7,097
 
 
 
-
 
 
 
-
 
Changes in provisions for exploration projects, note 15(b)
 
 
2,433
 
 
 
-
 
 
 
-
 
Sale of assets to third parties
 
 
3,863
 
 
 
369
 
 
 
21,730
 
Sale of services to third parties
 
 
3,512
 
 
 
2,566
 
 
 
1,840
 
Income from previous years
 
 
1,517
 
 
 
2,737
 
 
 
1,086
 
Recovery of expenses from previous years
 
 
81
 
 
 
68
 
 
 
3,171
 
Income from rental of investment properties
 
 
45
 
 
 
235
 
 
 
1,821
 
Expiration of allowance for expected credit losses, note 7(f)
 
 
45
 
 
 
99
 
 
 
-
 
Sale of assets to related parties, note 30(a)
 
 
30
 
 
 
336
 
 
 
-
 
Sale of supplies related parties, note 30(a)
 
 
27
 
 
 
4
 
 
 
1
 
Sale of investment properties (b)
 
 
-
 
 
 
11,250
 
 
 
-
 
Recovery of provision for depreciation of supplies, note 8(c)
 
 
-
 
 
 
-
 
 
 
110
 
Other minor income
 
 
4,099
 
 
 
14,469
 
 
 
11,639
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
102,620
 
 
 
87,828
 
 
 
95,307
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Other expenses
 
 
 
 
 
 
 
 
 
 
 
 
Disposal cost of sale of supplies and merchandise to third parties
 
 
(57,897
)
 
 
(60,242
)
 
 
(49,890
)
Net cost of transfer of investments, note 1(d)
 
 
(11,178
)
 
 
(1,706
)
 
 
-
 
Direct expenses
 
 
(11,000
)
 
 
(5,998
)
 
 
(4,350
)
Provision for loss of value of supplies, note 8(c)
 
 
(7,039
)
 
 
(2,444
)
 
 
-
 
Withdrawals and disposals of property, machinery and equipment, note 11(a)
 
 
(6,626
)
 
 
(15,013
)
 
 
(1,635
)
Allowance for expected credit losses, note 7(f)
 
 
(1,334
)
 
 
-
 
 
 
-
 
Net cost of property, machinery and equipment to third parties
 
 
(626
)
 
 
-
 
 
 
(2,131
)
Net cost of investment properties (b)
 
 
-
 
 
 
(9,575
)
 
 
-
 
Changes in provision for exploration projects, note 15(b)
 
 
-
 
 
 
(891
)
 
 
-
 
Other minor expenses
 
 
(11,932
)
 
 
(5,548
)
 
 
(18,344
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(107,632
)
 
 
(101,417
)
 
 
(76,350
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(5,012
)
 
 
(13,589
)
 
 
18,957
 
 
 
(b)
During 2017 the subsidiary Buenaventura Ingenieros S.A. (hereinafter "BISA") sold to a third party its investment properties located in the El Derby Capital Building, district of Surco.