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Compañía de Minas Buenaventura S.A.A.

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FY2019 Annual Report · Compañía de Minas Buenaventura S.A.A.
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ANNUAL REPORT

TABLE OF CONTENTS

6

Letter to the Shareholders

18

67 Years of History 
and Long-Term 
Vision

28

Operations

46

Projects

22

52

Corporate Culture

Other Businesses 

58

Safety

62

Environmental 
Management

66

Social 
Management

70

Economic and
Financial Report 

74

Management 
Analysis and 
Discussion 

82

Operations
Summary 

98

Shareholding 
Structure

104

Share and ADR 
Behavior

110

Financial
Statements

118

Management
Team

136

Background of the 
Members of the Board 
of Directors and 
Management 

3

2019AnnualReport2019 Annual

Report

This report contains true and sufficient information 
regarding the business development of Compañía de Minas 
Buenaventura S.A.A. during fiscal year 2019.

Without prejudice to the issuer’s liability, I, the 
undersigned, hereby assume responsibility for the content 
hereof, in accordance with the applicable laws.

 Roque Eduardo Benavides Ganoza
CHAIRMAN OF THE BOARD

Lima, June 17, 2020

4

5

LETTER TO THE 
SHAREHOLDERS

TO OUR SHAREHOLDERS:
THE YEAR 2019 TURNED OUT TO BE AN ATYPICAL ONE 
FOR PERU DUE TO A SERIES OF POLITICAL EVENTS THAT 
SET THE NATIONAL AGENDA, WITH AN UNDISPUTABLE 
IMPACT ON EVERY SINGLE ECONOMIC SECTOR. 

6

7

2019AnnualReportLetter to the Shareholders

The national economy grew at a moderate 
pace, demonstrating Peruvians’ intention to 
continue down the path of development as 
approach the bicentennial of the country’s 
independence.

At the international level, the tensions 
eased between the United States and the 
Asian powers of China and North Korea 
was reason for relief, allowing for the slow 
recovery of the global economy, while the 
outlook following the United Kingdom’s exit 
from the European Union—Brexit—began to 
become clearer.

Global GDP for 2019 grew by 3%, according 
to the Peruvian Central Reserve Bank (BCRP, 
for its acronym in Spanish) which was 

slightly higher than expected. This growth 
was driven by consumption, job creation 
(mainly in the service and manufacturing 
sectors) and real estate investment.

The slight growth in the global economy, 
along with the partial bilateral trade 
agreements between the United States and 
China—which are of particular interest to 
both countries’ technology and agriculture 
sectors— temporarily staved off the 
possibility of recession in the US economy. 

Meanwhile, China reported a growth of 6% 
in its economy, although its manufacturing 
and service sectors began to rally during 
the last quarter of the year, according to the 
BCRP’s analysis.

GLOBAL GDP FOR 2019
GREW BY 3% ACCORDING TO THE BCRP, 
WHICH WAS SLIGHTLY HIGHER THAN 
EXPECTED.

In the Eurozone, the economy’s performance was weak for the third consecutive year, 
growing by just 1%, according to figures from the European Central Bank. Analysts 
identified three fundamental factors that accounted for this sluggishness: political 
instability, trade tensions, and the rapid changes occurring in the automotive industry, 
which is being forced to adapt to a new consumer profile.

The Latin American economy registered a weak growth of just 0.1% during 2019, due 
to a highly complicated political and social context marked by the social crises that 
broke out in multiple countries across the region.

In Chile, Colombia, Bolivia, and Ecuador, certain sectors of society took to the streets 
to voice a series of social, political, and civil demands, such as better public services. 
Unfortunately, these demonstrations included an element of violence that had a 
negative impact on the situation. 

During the year in review, Chile’s economy grew by 1%, Colombia’s by 3.2%, and 
Bolivia’s by 3.2%. Ecuador’s shrank by -0.1%. Brazil, the region’s largest economy, grew 
by 1.1%, as it fought to overcome the aftereffects of the Operation Car Wash case.

8

9

2019AnnualReportIn Argentina, where Peronist leader Alfredo 
Fernández became the new president in 
December 2019, the country’s economy 
shrank by -2.7%, while Mexico reported 
almost no growth at all (0.1%).

Against this complicated external backdrop 
and a volatile internal climate, essentially 
due to problems between different 
branches of the government, Peru grew by 
2.2% in 2019. Although this figure is rather 
modest, it was still the third-highest in the 
region behind Colombia and Bolivia.

Major political events, some of them 
unprecedented, such as the arrest of 
political leaders tied to the Odebrecht case, 
the suicide of ex-president Alan García, the 
closing of the Congress of the Republic, and 
the call for new congressional elections, 
occupied the national agenda and led, 
among other consequences, to a drop in 
the business sector’s confidence regarding 
investment and new hires.

After closing the Congress in September, 
President Martín Vizcarra’s administration 
used the powers of the Permanent 
Commission of the Legislative Branch to 
issue emergency orders, in accordance with 
Section 135 of the Peruvian Constitution.

by Buenaventura, made history by taking 
home the gold medal as champion of the 
42K marathon.

According to the BCRP, the private 
investment portfolio in the country 
is estimated at USD 17 billion, spread 
across 115 projects. The most attractive 
sectors for private investment are 
mining and oil & gas.

The mining sector alone presents an 
investment potential of over USD 8 billion, 
consisting of Quellaveco (Moquegua) at 
USD 5.3 billion,

Mina Justa (Ica) at USD 1.6 billion, and the 
expansion of Toromocho (Junín) at USD 1.3 
billion. Additionally, there are the Corani 
Project (Puno) at USD 600 million and 
the Coroccohuayco Project (Cusco) with a 
similar investment.

Making these opportunities a reality 
will represent a tremendous leap in the 
possibility of generating development 
and creating formal jobs in the country’s 
regions, with positive impacts on the 
consumption of goods and services, 
as well as revenue for a range of 
government bodies.

We are happy to note that, despite the 
crisis brought on by Operation Car Wash 
(“Lava Jato”) criminal investigation, the 
2019 Pan American Games were held in 
Lima in July and August. As part of this 
successful athletic competition, Peruvian 
marathon runner Cristhian Pacheco, who is 
part of the “Quest for Gold” team sponsored 

In 2019, the extractive sector in Peru (mining 
and oil & gas) was affected by low commodity 
prices and a drop in production at the 
country’s most important mining deposits. 
Between October and November, however, 
the price of certain metals began to rebound, 
thanks to the cooling of the trade war 
between the United States and China.

According to the London Bullion Market Association (LBMA) the 
primary reference point in the precious metals market, as of 
December 31, 2019, the price per ounce of gold closed at USD 1,523, 
compared to USD 1,281.65 per ounce in December 2018. The price 
of silver at the close of 2019 was USD 18.05 per ounce, compared to 
USD 15.47 at the end of 2018.

The London Metal Exchange (LME) reported that the price per ton of 
copper closed 2019 at USD 6,156, and per ton of zinc at USD 2,292. 
Lead closed out the year at USD 1,922 per ton, and tin at USD 16,825.

Buenaventura’s share price fell by 7% during 2019, closing the year 
at USD 15.10. This year, the Company reported a net loss of USD 28.5 
M compared to a loss of USD 11.7 M the previous year. This was due 
mainly to a drop in net sales driven by a lower volume (USD -322 M) 
and counteracted by higher prices (USD +37 M). Cost of sales was 
also lower (USD 100 M) as were exploration expenditures at the 
operating units (USD 46 M) with income from affiliated companies 
(USD 49 M) and income from deferred taxes (USD 48 M).

The net debt-to-EBITDA ratio in 2019 grew from 0.99x to 2.06x. The 
cash position at the close of 2019 dropped from USD 369.2 M to 
210.0 M and the CAPEX for the year totaled USD 103 M.

Safety continues to be a fundamental part of our activities. During 
2019, we continued to focus on our efforts to eliminate accidents at 
our operations. Congratulations are due to Procesadora Industrial 
Río Seco (Huaral) for twelve months without accidents.

This achievement bolsters our vision that accidents can be avoided 
with all of our commitment. We are certain that this success will 
gradually be replicated in Buenaventura’s other units and projects.

Our social management was focused on two main areas: 
strengthening friendly, trust-based relationships with the 
communities that welcome us in the surroundings of our 
operations; and promoting sustainable growth based on a shared 
social responsibility outlook in which everyone—the Company, all 
levels of government, the community, universities, and the general 
public—works together for sustainable and inclusive development.

PERU’S GROWTH IN 
2019 WAS MODERATE, 
RANKING THIRD IN THE 
REGION, AT

2.2%

10

11

2019AnnualReportWe continued to apply best industry practices in an effort to 
innovate regarding environmental aspects such as responsible 
water management and efficient mine closure, in order to ensure 
the sustainability of operations and preserve our surroundings.

In the human resources area, we closed 2019 with a total 
workforce of 12,515 people. This number includes contractor 
personnel (9,428) who provide services at our operations.

The performance of our production units met expectations. 
Tambomayo, in Caylloma, Arequipa, produced 99,245 ounces of 
gold and 2,556,391 ounces of silver in 2019, compared to 129,172 
ounces of gold and 3,928,808 ounces of silver the previous year.

In Orcopampa, another gold-producing unit in the province 
of Castilla, Arequipa, we continued to work on centralizing 
operations and the implementation of a debottlenecking 
program, in search of greater efficiency and productivity. We also 
continued to focus efforts on exploration works. 

The Orcopampa Unit produced 41,660 ounces of gold compared 
to 115,887 ounces in 2018. This drop in production was due to the 
mine’s centralization and restructuring plan.

La Zanja and Coimolache, two open-pit mines operating in 
Cajamarca, produced 31,500 and 162,196 ounces of gold in 2019, 
respectively, compared to 71,630 ounces of gold produced by La 
Zanja and 173,192 ounces produced by Coimolache in 2018.

Uchucchacua, a silver mine in the province of Oyón, Lima, 
produced 10,640,913 ounces of silver, compared to 16,583,698 
ounces in 2018. This unit’s production was affected by a 21-day 
halt in January 2019.

The Julcani Unit, our flagship mine, located in Huancavelica, 
produced 2,609,006 ounces of silver, exceeding the 2,482,907 
ounces produced the previous year. This was the result of the 
decision to reduce the processing volume and focus on more 
accessible zones with higher grades, thus reducing dilution.

Sociedad  Minera  El Brocal (61.43% 
BVN) a subsidiary of Buenaventura that 
operates the Colquijirca Unit in Cerro de 
Pasco, registered a production of 43,394 
metric tons of copper and 43,580 metric 
tons of zinc in 2019, compared to 46,231 
metric tons of copper and 45,593 metric 
tons of zinc in 2018.

At El Brocal, lead production levels came 
to 23,599 tons, higher than the 20,582 
tons reported in 2018. The mine also 
produced 4,366,438 ounces of silver, 
which was also higher than the 3,901,869 
ounces from the previous year.

Sociedad Minera Cerro Verde (19.58% 
BVN), an affiliate that operates in 
Arequipa, reported a production of 
455,305 metric tons of copper compared 
to 476,013 metric tons the previous year.

Minera Yanacocha (43.65% BVN) another 
affiliate, located in Cajamarca, produced 
527,336 ounces of gold, which was 
higher than the 514,564 ounces reported 
the previous year.

The effort put into exploration works is also 
part of Buenaventura’s culture that helps 
ensure the continuity of our operations.

At our underground units of Orcopampa, 
Uchucchacua, Tambomayo, Julcani, and 
El Brocal, progress consisted of 11,042 
meters of exploration tunnels and 
208,428 meters of diamond drill holes. 
In the open-pit mines of La Zanja and 
Coimolache, progress included 5,417 

meters of diamond drill holes. Note 
should be made of the progress in tunnels 
for mine preparation and development, 
which totaled 62,037 meters. Of this 
total, 10,454 meters correspond to 
development and 51,583 to preparation.

In terms of our project portfolio, at 
Yumpaq (Pasco) we purchased 500 
hectares in the community of Huachus, 
and performed planned resources 
delineation works for the project. These 
resources helped in the development of 
a prefeasibility study that enabled us to 
include 1.7 million metric tons of ore with 
an average grade of 19.18 ounces per ton 
of silver (22.5 million ounces of silver) in 
the reserves of our Uchucchacua Unit.

Meanwhile, the San Gabriel Project 
(Moquegua) completed the prefeasibility 
study, carried out with the company 
Ausenco, which estimated a total volume 
of 9.8 million metric tons of ore with an 
average grade of 5.01 grams per ton of 
gold (1.7 million ounces of gold).

At Trapiche (Apurímac) prefeasibility 
studies were completed with the 
company M3, estimating a volume of 
283 million metric tons of ore with an 
average grade of 0.51% of copper (1.4 
million tons of copper).

We are also pleased to announce that in 
2019, together with Nexa, Gold Fields, 
and the Peruvian National Mining, 
Oil, and Energy Association (SNMPE) we 
founded the Peruvian Mining Innovation 

WE CLOSED 2019
WITH A TOTAL 
WORKFORCE OF

12,515 

PEOPLE

13

2019AnnualReportHub. This initiative, which is being promoted by our Innovation Management, along with its 
equivalent areas in our partner companies, is the first of its kind in Peru and aims to foster 
collaboration in the sector to help meet the major challenges faced by mining in our country. 
Last but not least, the Board of Directors of Compañía de Minas Buenaventura would like to 
thank the management, our shareholders, our suppliers, and all of our stakeholders, giving 
special recognition to the team members from all our production units, projects, and offices 
throughout eight regions of the country.

COMMENTS AS OF JUNE 16, 2020
By the time you read this letter, you will know that the effects of COVID-19 in Peru 
have grown more severe. The fight against the coronavirus has brought many activities 
nationwide to a halt, with severe social and economic consequences.

In the face of this completely new and unprecedented crisis, all of us as Peruvians have 
been focusing our efforts on the same objective: to flatten the curve in the spread of the 
virus and to save as many lives as possible. 

At Buenaventura, we have adapted our operations to these new circumstances to 
safeguard the health and wellbeing of our workers, contractors, and neighboring 
communities, all of whom are our main priority.

During the first part of quarantine, our direct operations were focused solely on critical 
and essential tasks, such as pumping systems, water treatment, power supply, electric 
substations, plant maintenance, health and occupational services, among others. 
However, during this time, we continued to process ore in the leach pads of our La Zanja 
and Coimolache units in Cajamarca.

In 2020, we completed the refinancing of the syndicated loan. This new loan will be for 
five years with a grace period of 30 months, with six-month installments starting in 
October 2022. The rate was reduced to Libor (3m) + 190 bps from Libor (3m) + 215 bps.

It should be noted that our Company has a solid cash position of USD 222 million as 
of March 2020, with fixed monthly costs for critical activities of approximately USD 
12 to 14 million.

We continue to monitor current growth CAPEX, G&A, and the payment of dividends to 
shareholders with a focus on preserving the Company’s liquidity. 

14

15

2019AnnualReportThe Peruvian government issued an 
Executive Order  (Decreto Supremo) 
authorizing mining companies to 
gradually recommence their activities as 
of May 11, 2020.

documentation to restart operations at 
all of our mining units, and we have the 
permits issued by the Ministry of Energy 
and Mines for such purpose.

For this purpose, we have a strict new 
health protocol (Workplace Plan for 
COVID-19 Surveillance, Prevention, 
and Control) approved by the relevant 
authorities, with the objective of 
preventing and minimizing the spread of 
the virus at our operations and projects.

To comply with the new regulations, 
Buenaventura has decided to restart its 
operations in two stages, prioritizing 
mines with the highest production levels. 
It should be stressed that we have 
already submitted all of the required 

Our plan for restarting operations has 
been conducted as follows:

Stage 1 (started May 16, 2020):

›
›
›
›

Tambomayo
Uchucchacua
El Brocal (Tajo Norte y Marcapunta)
Coimolache

Stage 2 (started June 16, 2020)

›
›
›

Orcopampa
Julcani
La Zanja

We would also like to report that on March 30, we made the decision to suspend our 
forecasts for all of 2020, since it was not possible at that time to accurately quantify the 
full impact of COVID-19 on our operations and our future performance. This makes it 
difficult to estimate the results for this year. However, we continue to improve our current 
operating plans to focus on high-grade zones while maintaining exploration and cost 
reduction efforts.

Buenaventura will provide its updated forecast once all operations have reached full 
capacity and we have a clearer outlook on the results for 2020. As we indicated in our two-
stage plan, we expect to reach full capacity by the end of July.

We continue to work with leadership and sacrifice, as a united team, to provide the 
best for our operations, our families, and our country. We know we will come out of this 
stronger, more solid, and satisfied with having fulfilled our duty.

We would like to offer a special acknowledgment to our workers, contractors, suppliers, 
and communities. We appreciate you and value your efforts deeply. Let’s continue to build 
Buenaventura’s future together!

Sincerely,

Roque Benavides
Chairman of the Board

16

17

2019AnnualReport67 YEARS OF 
HISTORY AND 
LONG-TERM VISION

Buenaventura has over 67 years of experience in the 
exploration, development, construction, and operation of 
mines, as well as joint ventures with world-class companies.

18

19

2019AnnualReportSILVER

Founding of Buenaventura.
Acquisition of Julcani Mine in 
Huancavelica.

BVN lists on Lima 
Stock Exc
Stock Exchange

COPPER

BVN acquires 11% of El 
Brocal. As of this date,  
BVN holds 61%.

JV1:

el brocal

Sociedad Minera El Brocal S.A.A

COPPER

Privatization of Cerro Verde
(with Cyprus).

JV₃:
(1994: 30K → 2017: 500-550K Cu MT) 18x

GOLD

La Zanja (nearly
1M oz/Au produced 
ate)
to date)

Mn

Inauguration of
Río Seco chemical 
plant

GOLD

First doré bar 
obtained at

53553555355553553535333311111111
1953
953

776766777777799919191919191911
1967
6796
19

11111111
1971
717717777177777717771717111
97
71
19

5555555555555555991991991991991919191
1975
97
75
19

979779777797797979999991919191911111111
1979
97
9
19

99
1993
933333333333333333
99191919191919191
19

99
1994
4444444444444
94
9919191919191911
19

996666666666
1996
66666666666
9919119111911119111191111911111
19

0100000000000
2010
000000000000
002022022220222202222022222222222
20

01
2011
111111111
11
0020202020222222
20

0133333333333333
2013
33333333333
002220222202222022220222202222222222
220

01
2014
44444444444444444
00202020220220222022222
20

66666666666666601666666666
2016
00202202220222202222022222222222
20

GOLD

SILVER

Orcopampa
(1967: 75 → 2017: 1.5K TPD) 20x

Uchucchacua
(1975: 150 → 2017:~4K TDP) 25x

GOLD

First doré bar 
obtained at 
Yanacocha (over 36M 
oz/Au produced to 
date)

JV2:

First mining company in 
Latin America to list 
shares on the New York 
Stock Exchange

GOLD

Coimolache: First doré bar 
obtained (nearly 1M oz/Au 
produced to date)

Huanza: Hydroelectric plan 
begins commercial operations 
(100 MW)

PERUVIAN GOVERNMENT ADMINISTRATIONS

ODRÍA
(1948-1956)

PRADO UGARTECHE 
(1956-1962)

BELAÚNDE
(1963-1968)

VELASCO
(1968-1975)

MORALES BERMÚDEZ 
(1975-1980)

BELAÚNDE
(1980-1985)

GARCÍA
(1985-1990)

FUJIMORI
(1990-2000)

TOLEDO
(2001-2006)

GARCÍA
(2006-2011)

HUMALA
(2011-2016)

KUCZYNSKI
(2016-2018)

VIZCARRA
(2018-a la fecha)

20

21

2019AnnualReportCORPORATE 
CULTURE

Vision
Develop mineral resources while creating the 
greatest possible value for society.

Mission
›

Be the Mining Company of choice, and the 
most widely accepted, among communities, 
authorities, and the general public.

›

Make the Company as highly valued as 
possible by all of its stakeholders.

22

23

2019AnnualReportValues

SAFETY
Promote respect for our team members’ lives in all of our processes, operations, and activities.

HONESTY
Act in an upright and honest manner, never lying, deceiving, or omitting the truth.

INDUSTRIOUSNESS
Bring  passion  to  our  work,  giving  everything  our  best  and  acting  efficiently,  safely, 
and responsibly.

LOYALTY
Make a commitment to the Company, its mission, vision, and values. We are all part of 
the same team.

RESPECT
Be considerate and treat others with courtesy and respect for their ideas, culture, and rights

TRANSPARENCY
Be truthful, clear, timely, and unambiguous in all of our communications and actions.

24

25

2019AnnualReport 
Strategic Map

SAFETY

COMMUNITY
RELATIONS

ENVIRONMENT

Y
T
I
L
I
B
A
N
A
T
S
U
S

I

26

VALUE

GOLD

OPERATIONS

SILVER

BASE
METALS

› La Zanja
› Yanacocha

› Tambomayo
› Orcopampa
› Coimolache

› Uchucchacua
› Julcani

› Cerro Verde
› El Brocal

GOLD

› San Gabriel

PROJECTS

SILVER

› Yumpaq

BASE
METALS

› Yanacocha Sulfuros
› Coimolache Sulfuros

› Trapiche - El Faique
› Río Seco (Chemical Plant)

27

2019AnnualReportOPERATIONS 

During 2019, Compañía de Minas Buenaventura 
S.A.A. operated eight mining units, of 
which five are underground (Orcopampa, 
Uchucchacua, Julcani, Tambomayo, and 
Marcapunta) and three are open-pit (La Zanja, 
Coimolache, and Tajo Norte).

28

29

2019AnnualReportTambomayo (100% BVN)

Tambomayo is an epithermal deposit with 
quartz veins and mineralization, mainly gold-
silver, with significant lead and zinc content. 
The mining unit is located in the Province of 
Caylloma, in the Region of Arequipa.

The main structure is the Mirtha vein, which 
runs NW. At the southeast end, the Paola 
and Paola Norte are being developed. These 
three veins contain 85% of the mineral 
resources of this deposit. 

The explorations performed to date show 
economic mineralization between 4,950 
and 4,100 masl, which means 850 vertical 
meters and 1,200 horizontal meters, thus 
signifying a great geological potential to 
be explored in the structures associated 
with this principal system.

In 2019, the debottlenecking program was 
implemented, which helped reduce operating 
costs in the Tambomayo Unit to less than 
USD 100 per ton.

In 2019, 640,914 DMT were processed, 
with 5.80 g/t Au, 4.54 oz/t Ag, 1.35% Pb 

At Tambomayo 

640,914
TMS
of ore were 
processed in
2019

resources (infill drilling). Three main 
targets were explored—Profundización, 
Venturosa, and Los Diques—with the goal 
of opening new exploration fronts around 
the current operating zone between levels 
4,540 and 4,340.

Additionally, the Mine Area performed 
6,764 meters of mining work, of which 924 
meters correspond to development and 
5,840 meters to mine preparation.

In the processing plant, the leaching of 
flotation concentrates (Pb) began in March 
2019. Not having to leach 100% of the 
ore has enabled us to reduce much of 
the cyanide consumption, and thus, the 
processing cost.

In October 2019, we received authorization 
to start operating the processing plant at 
2,000 tons per day.

and 1.99% Zn, recovering 99,245 ounces of 
gold, 2,556,391 ounces of silver, 7,603 FMT 
of lead and 9,672 FMT of zinc. The average 
annual cash cost was USD 679 /oz of gold.

The mineral reserves as of December 31, 
2019  are 2,445,606 DMT, with 0.120 oz/t 
of gold (3.75 g/t) 4.46 oz/t of silver, 1.27% 
lead, and 1.66% zinc, which represents 
294,526 ounces of gold, 10,898,249 
ounces of silver, 31,002 MT of lead, and 
40,645 MT of zinc.

The measured and indicated resources 
excluding reserves are 542,401 DMT with 
0.085 oz/t of gold (2.66 g/t) 4.16 oz/t of 
silver, 0.79% lead, and 1.09% zinc, which 
represent 46,323 ounces of gold, 
2,256,066 ounces of silver, 4,310 MT of 
lead, and 5,935 MT of zinc.

In 2019, 719 meters of exploration works 
were executed, with 52,356 meters of 
diamond drill holes. This program was 
aimed at completing the reconnaissance of 
the veins within the operational footprint 
and recategorizing and extending the 

30

31

2019AnnualReport  
Orcopampa (100% BVN)

The Orcopampa Unit is located in the province of Castilla, in the Arequipa region, at 
3,800 masl, and 150 km from the city of Arequipa in the southern Andes of Peru. It is a 
fissure-type epithermal deposit of precious metals (Au – Ag). Currently, it operates the 
Chipmo Mine, which contains a system of gold-bearing veins related to tellurides.

In 2019, a mining operations centralization program was implemented that formed 
part of the debottlenecking and helped achieve a positive operating margin in the 
fourth quarter of 2019.

During 2019, the plant processed 127,079 t of ore with a grade of 0.33 oz/t of gold 
(10.30 g/t) and 0.19 oz/t of silver, recovering 41,660 ounces of gold and 18,791 ounces 
of silver. The metallurgical recovery was 96.75% for Au and 76.76% for Ag.

The mineral reserves of the Orcopampa Unit, as of December 31, 2019, totaled 626,276 
t with 0.32 oz/t of gold (10.00 g/t Au) and 0.49 oz/t of silver, representing a metal 
content of 201,276 ounces of gold and 304,611 ounces of silver.

The measured plus indicated mineral resources, excluding the reserve, are 237,778 
DMT with 0.22 oz/t of gold (6.87 g/t Au) and 0.50 oz/t of silver, representing 52,509 
ounces of gold and 119,422 ounces of silver.

In 2019, an exploration program was carried out with 1,229 meters of mining work and 
59,509 meters of diamond drilling, mainly focused on exploration and the infill drilling 
of the Pucará Sur, Pucara Sur Piso, Pucarina, María Isabel 2, Ocoruro, and Nazareno 
veins, between levels 3,690 and 3,540.

The Mine Area performed 7,013 meters of mining works, of which 2,037 meters were 
development works and 4,976 meters were mine preparation works.

Orcopampa has

626,276
TMS
of mineral reserves as of 
December 31, 2019

Compañía Minera Coimolache S.A. 
(40.095% BVN) Tantahuatay

Buenaventura is in charge of the management of Compañía Minera 
Coimolache S.A. (40% BVN, 44% SPCC, and 16% ESPRO) which operates the 
Tantahuatay Mine, located in the district of Hualgayoc, in the province of the 
same name, 50 kilometers north of the city of Cajamarca.

In 2019, mining was performed in the Tantahuatay 2 and Ciénaga Norte pits, 
between levels 3,972 to 3,852 and 4,044 to 3,900, respectively. 

A total of 13,878,907 DMT of oxidized ore was sent to the leach pad, with 
grades of 0.017 oz/t of gold (0.537 g/t) and 0.342 oz/t of silver (10.63 g/t) 
of which 1,996,030 DMT came from hauling Goldfields oxides. Fine metals 
production came to 162,196 ounces of gold and 754,306 ounces of silver. The 
average annual cash cost was USD 684.00 per oz/Au.

Diamond drilling of oxides totaled 5,417 meters, focused on the 
Tantahuatay 2 and Ciénaga Norte operating zones, and the Azufre and 
Mirador Nor-Oeste projects.

No sulfide drilling was performed in 2019. Work was focused on 
validating and standardizing all of the information to generate updated 
models. Support was provided through the supervision of the drilling 
program performed by Regulus Resources in the Sinchao zone, for a 
total of 13,414 meters.

The measured and indicated oxide 
mineral resources total 

11’246,337
TMS

32

33

2019AnnualReportAs of December 31, 2019, the proven 
and probable oxide mineral reserves at 
Tantahuatay total 66,858,657 DMT, with ore 
grades of 0.011 oz/t of gold (0.343
g/t) and 0.256 oz/t of silver (7.976 g/t) 
representing 737,042 ounces of gold and 
17,145,203 ounces of silver.

This result comprises six ore deposits: two 
currently in production (Tantahuatay-2 
and Ciénaga Norte) and the Mirador Norte, 
Mirador Sur, Tantahuatay 2 Extensión 
Nor-Oeste, and Tantahuatay 5 Projects, 
with the last of these being the new project 
placed in reserve in 2018. The calculation 
of reserves in the deposits was based on 
an economic pit of 1,300 USD/Oz Au. As of 
the close of fiscal year 2019, there is ore 
remaining in the pad, counted as Inventory 
in Pad, totaling 5,290.08 ounces of gold and 
314,405 ounces of silver.

The measured and indicated oxide resources, 
excluding reserves, as of December 31, 2019, 
total 11,246,337 DMT, with 0.009 oz/t of 
gold (0.273 g/t) and 0.30 oz/t of silver (9.351 
g/t) representing 98,544 ounces of gold and 
3,380,998 ounces of silver.

The design of the future Mirador Norte 
Pit is evaluating the availability of areas 
for backfills, with a new design with two 
access routes to the Mirador Norte Pit 
that will connect to the existing haul road, 
which will be used to haul material from 
the pre-mining and mining works to the 
Ciénaga Norte or Tantahuatay deposits 
and/or pads, as applicable. 

The extractions in the leach pad for 2019 
were 68% gold and 16 % silver.
Cumulative extractions in the leach pad from 
the start of operations through December 31, 
2019 are 75.13% gold and 17.77% silver.

In December 2019, the construction of 5.50 
ha of leach pad was completed in Ciénaga 
Norte, to process ore from the pit of the 
same name. Internal 10 kV distribution 
lines were also expanded (total length: 
3.53 km) and three substations were 
built at Tantahuatay and two at Ciénaga 
for pumping and handling water in the 
operating ponds.

An additional 80 lodging modules were built 
for 160 people at the Permanent Camp.

Minera La Zanja S.R.L. (53.06% BVN)

Minera La Zanja SRL is a subsidiary of Buenaventura that operates 
the La Zanja Mine, located in the district of Pulán, province of Santa 
Cruz, 107 kilometers northwest of the city of Cajamarca.

In 2019, operations were focused on the San Pedro Sur and Pampa 
Verde pits. 1,577,645 DMT of ore were sent to the leach pad from the 
Pampa Verde and San Pedro Sur pits, with 0.015 oz/t of gold (0.464 
g/t) and 0.216 oz/t of silver (6.733 g/t) on average, recovering 31,500 
ounces of gold and 97,204 ounces of silver.

Since operations began at La Zanja in 2010, a total of 1,082,316 
ounces of gold and 2,747,843 ounces of silver have been produced. 
The mineral reserves of the open pits total 560,177 DMT, with 0.013 
oz/t (0.411 g/t) of gold and 0.271 oz/t (8.414 g/t) of silver, which 
means 7,401 ounces of gold and 151,531 ounces of silver.
Additionally, there is an inventory in pads and plant of 4,594 
recoverable ounces of gold and 109,396 ounces of silver.

The measured plus indicated oxide resources outside the reserve 
pit and inside the economic cone of resources of USD 1,430/oz Au 
total 12,906,067 DMT, with 0.014 oz/t of gold (0.438 g/t) and 0.284 
oz/t of silver (8.842 g/t), which means 181,659 ounces of gold and 
3,668,976 ounces of silver.

In 2019, the Explorations Area drilled a total of 2,926 meters of 
diamond drill holes, of which 2,777 meters were in the Corredor 
Emperatriz – Sector Emperatriz Sur project, and 148 meters were 
drilled in the San Pedro Sur Pit.

1’577,645
TMS
were sent to the
leach pad

34

35

2019AnnualReportUchucchacua  (100 % BVN) 

The Uchucchacua Unit is located in the district of Oyón, province 
of Oyón, Lima region. It is an underground mining operation that 
produces silver, lead, and zinc. In late 2019, the Yumpaq Project 
was integrated into our unit after completing the delineation of 
reserves and resources.

Yumpaq is located 5 kilometers NE of Uchucchacua, and consists 
of a system of veins with a predominantly NE orientation, which 
are in tension with the Cachipampa Fault that controls the 
mineralization of Uchucchacua.

In 2019, a total of 1,335,018 DMT were processed, with 9.06 oz/t 
of silver, 1.52% lead, and 2.2% zinc, with the ore coming from the 
Socorro, Carmen, and Casualidad Mines, obtaining 10,640,913 ounces 
of silver, 17,635 FMT of lead, and 19,144 FMT of zinc. The average 
annual cash cost for 2019 was USD12.15/oz Ag.

Uchucchacua’s mineral reserves, , including the Yumpaq Project, 
as of December 31, 2019, totaled 10,425,777 DMT, with 9.46 oz/t of 
silver, 1.19% of lead, 2.03% zinc, and 6.42% manganese, representing 
contents of 98,597,841 ounces of silver, 124,359 MT of lead, and 
211,939 MT of zinc. Within this total, the Yumpaq Project accounts for 
1,168,113 DMT, with 19.32 oz/t of silver, 0.42% lead, 0.75% zinc, and 
15.41% manganese, representing contents of 22,572,876 ounces of 
silver, 4,928 MT of lead, and 8,710 MT of zinc.

The measured and indicated resources, excluding reserves, of the 
Uchucchacua Unit and the Yumpaq Project are 3,139,988 DMT, with 
11.26 oz/t of silver, 1.21% lead, 1.90% zinc, and 7.89% manganese, which 
means 35,367,936 oz of silver, 38,138 MT of lead, and 59,705 MT of zinc.

As of December 31, 2019,
mineral reserves totaled 

10’425,777 
TMS

In the Uchucchacua processing plant, in the 
thickening and filtering stage, installation 
began for a new Diemme filter that will 
allow us to increase our filtering capacity.

On December 5, 2019, the file was 
submitted to obtain authorization for 
operations at 4,500 tons per day.

Progress in exploration undertaken 
included 1,778 meters of mining works 
and 57,402 meters of diamond drill 
holes, focused primarily on the Socorro, 
Cachipampa, Carmen, and Casualidad 
Sectors, of which 7,907 meters correspond 
to infill drilling, with the goal of increasing 
the certainty of resources to be measured. 

The Mine Area executed 24,903 meters 
of mining works, of which 1,412 meters 
correspond to development works and 
23,491 meters to mine preparation works.

36

37

2019AnnualReportJulcani  (100 % BVN) 

The Julcani Unit is located in the province of Angaraes, department 
of Huancavelica, in the central Andes of Peru. It is an underground 
operation that essentially produces silver with lead and gold content.

In 2019, 123,818 t of ore were processed from the Acchilla Mine, with 
an ore grade of 21.9 oz/t of silver, 0.092 g/t of gold, 0.86% lead, and 
0.16% copper, recovering 2,609,006 ounces of silver, 150 ounces of 
gold, 966 MT of lead, and 185 MT of copper. The average annual cash 
cost was 13.49 USD/oz Ag.

The mineral reserves as of December 31, 2019, between the 
Acchilla and Estela Mines, totaled 255,097 t, with 21.02 oz/t silver 
and 2.00% lead, representing 5,360,856 fine oz of silver, 1,432 oz 
of gold, 5,108 MT of lead, and 1,089 MT of copper. Of these total 
reserves, 77% belongs to the Acchilla Mine and the remaining 23% 
to the Estela Mine.

The indicated mineral resources, excluding reserves, total 167,061 
t, with 20.96 oz/t of silver and 1.26% lead, representing contents of 
3,502,157 ounces of silver and 2,103 MT of lead.

During 2019, at the Acchilla Mine, a total of 7,263 m of underground 
mining works and 32,305 m of diamond drill holes were executed. 
The new mineral found totaled 100,249 t, with 23.18 oz/t of silver, 
1.79% lead (2,323,772 ounces of silver) with a volume calculation 
ratio of 13.85 t/m of advance. The veins that contributed the new 
mineral are Hanna 1, Tilsa 3, Yamila Piso, Acchilla 7B Ramal, Sandra, 
Mayra, and Sta. Fe Techo 1. The new mineral replacement to reserve 
production ratio is 1.

The Mine Area also undertook 5,726 meters of mining works, of 
which 880 meters correspond to development and 4,846 meters to 
mine preparation works.

Meanwhile, the geological review of the Nueva Esperanza Project will continue on the 
surface, with the goal of evaluating and defining the type of deposit and its Ag-Cu potential.

The processing plant successfully decreased the arsenic percentage in the concentrates 
with the use of metabisulfite and pH control, applying this recommendation for minerals 
with grades in excess of 1% As in the plant feed.

Plant tests were performed for the reprocessing of tailings from Dams 1, 2, and 3, 
obtaining concentrates with grades of 35 to 40 oz/t Ag and 2 to 4 g/t Au.

In November, we received authorization to raise the height of Tailings Dam 9 to an 
elevation of 4,136, thus expanding the life of the mine by approximately seven years.

The new mineral found
this year totaled 

100,249 
TMS

38

39

2019AnnualReportSociedad Minera El Brocal S.A.A.
(61.43 % BVN)

Sociedad Minera El Brocal S.A.A. operates 
the Colquijirca mining unit in the province 
and region of Cerro de Pasco, 15 km south 
of the city of the same name.

It currently extracts zinc, lead, and silver 
ore from the Tajo Norte open-pit mine, and 
copper ore from the Marcapunta Norte 
underground mine. The minerals from 
both zones are processed in Concentrating 
Plants 1 and 2 at Huaraucaca.

In 2019, a total of 3,407,914 DMT of lead 
and zinc ore (Tajo Norte) were processed, 
recovering 2,974,072 ounces of silver, 
23,599 MT of lead, and 43,580 MT of zinc. 
Additionally, 2,926,124 DMT of copper 
ore (Marcapunta Norte) were processed, 
recovering 1,392,359 ounces of silver, 18,726 
ounces of gold, and 43,394 MT of copper.

In 2019, the operation achieved a total 
processing value of 6,334,038 DMT, which 
represents an average daily processing 
volume of 17,354 DMT. The cumulative 
fine production for 2019 was 4,366,438 
ounces of silver, 18,726 ounces of gold, 
23,599 MT of lead, 43,580 MT of zinc, and 
43,394 MT of copper contained in the three 
concentrates produced.

The proven-probable mineral reserves 
as of December 31, 2019, for Tajo Norte 
- Smelter, which includes the Zn-Pb-Ag 
zone and the Cu-Ag zone, are 42,215,608 

DMT, with 1.08 oz/t of silver, and 1.11% Cu, 
which means 45,580,615 ounces of silver 
and 470,215 MT of copper.

The proven-probable mineral reserves as 
of December 31, 2019, for the Tajo Norte pit 
(Zn-Pb-Ag zone) are 14,756,041 DMT, with 
2.52% Zn and 1.17% Pb, making for 371,350 
MT of zinc and 173,284 MT of lead.

The proven-probable mineral reserves as of 
December 31, 2019, for Marcapunta Norte 
are 34,503,283 DMT, with 0.023 oz/t of 
gold, 1.30% copper, and 1.15 oz/t of silver, 
making for 805,168 oz of gold, 450,220 MT 
of copper, and 39,798,655 ounces of silver.

The exclusive measured-indicated 
resources of Marcapunta Norte total 
26,285,070 DMT, with 0.023 oz/t of gold, 
1.63% copper, and 0.87 oz/t of silver.

In 2019, 12,807 meters of diamond drill 
holes were undertaken, both on the 
surface and inside the mine. 84% of this 
total (10,768 meters) was performed
in the Marcapunta SW and Marcapunta 
SE zones (underground) in order to 
recategorize inferred resources to 
measured and indicated reserves and to 
Cu-Ag ore reserves, with positive results 
in the increase of Au values. Another 1,115 
meters were undertaken in nine boreholes 
in Marcapunta Sur for geometallurgical 
studies of arsenical copper ore. The 

laboratory tests were positive, with copper recoveries of 85% to 90%, which helps 
increase our resources. Additionally, 14,840 meters of diamond drilling was performed 
for mineral control.

At the underground mine of Marcapunta Norte, 5,201 meters of development works were 
undertaken and 12,430 meters of preparation works, for a total of 17,631 meters.

In 2019, the north slope remained unstable in the open pit, causing delays in the mining 
sequence. This instability was constantly monitored with radar, making it possible to 
control potential harm to personnel and damages to equipment.

In the concentrating plants, the maintenance planning and control system was 
strengthened. Together with an operational stability study conducted by the engineering 
firm Hatch, which has made it possible to draw up an intensive maintenance plan.

The total processing volume 
achieved in 2019 was

6’334,038 
TMS

40

41

2019AnnualReportMinera Yanacocha S.R.L. (43.65 % BVN)

Gold production in 2019 totaled 527,000 ounces, compared to 515,000 
ounces produced in 2018. Silver production came to 0.737 million 
ounces versus 1.076 million ounces in 2018. During 2019, the gold 
mill processed 4.75 million dry metric tons of ore, with an average 
grade of 1.97 grams per ton and a gold recovery of 75.2%, obtaining a 
gold production of 229,000 ounces compared to 268,000 ounces in 
2018. The lower gold mill production was due to the lower tonnage 
processed (4.8 million vs. 5.5 million in 2018) a higher soluble copper 
content, lower recovery, and a lower grade compared to 2018. The ore 
discharged in the leach pads in 2019 totaled 31.5 million dry metric 
tons, higher than in 2018, when the total was 23 million tons. This was 
due to the higher extraction of ore from Yanacocha and Quecher Main. 
Gold production was 298,000 ounces, higher than the 247,000 ounces 
in 2018. The proven and probable reserves of Minera Yanacocha as 
of December 31, 2019, totaled 6.9 million ounces of gold, 102.5 million 
ounces of silver,and 0.66 million MT of copper. As of December 31, 
2019, resources totaled 7.8 million ounces of gold, 26.4 million ounces 
of silver,and 0.05 million MT of copper.

Yanacocha’s CAPEX in 2019 came to USD 109 million, with the main 
capital expenditures being the Quecher Main Project ($96.9 M) the 
EWTP LQ Upgrade Project ($8.9 M) and the Yanacocha Shield Project 
($3.2 M). Mine closure expenditures totaled USD 25.6 M. Quecher Main 
is the bridge for the continuity of Yanacocha’s operations, contributing 
1.3 million ounces of gold, consisting of two leach pads, Carachugo 
11 (5 ha) and Carachugo 14 (57 ha); a pumping station; an operating 
pond and a stormwater pond; an open pit; and works related to mine 
development. The construction of Phases 3 and 4 is still underway, 
with operations scheduled through 2027.

In October 2019, Quecher Main announced its commercial production. 
The EWTP LQ Plant Upgrade Project includes the installation of new 
equipment to achieve the required design flow volume.

The Yanacocha Sulfuros Project is located in the current operating 
zone and consists of the processing of sulfide minerals for the 
production of copper and gold, which would substantially extend 

Yanacocha’s CAPEX 
in 2019 was

US$ 109 
millones

system, the management of its ISO 17025 
accredited environmental laboratory, 
and control of its process activities 
certified by the International Cyanide 
Management Code. Improvements were 
focused on reducing water use in its 
operations, relocating its environmental 
laboratory to La Quinua, reducing the use 
of plastic and styrofoam, and operational 
improvements in its processes.

Finally, in March 2019, the Environmental 
Impact Assessment was approved for 
the Yanacocha Sulfuros Project. The 
amendment of this Assessment was begun 
immediately to incorporate adjustments 
to the project, with citizen participation 
in 56 villages, completing the submission 
of the file to the National Environmental 
Certification Service (Senace) in December.

the life of mine to 2041. During the first 
quarter of 2019, the feasibility studies were 
completed and the Environmental Impact 
Assessment was approved. Currently, the 
definitive feasibility is being developed, 
which is expected to be completed in 
2021, after which the investment decision 
will be made. As part of the activities of 
the Project’s Definitive Feasibility Stage, 
test stope mining tests were begun in the 
southern zone of Chaquicocha Subterráneo, 
which will help validate the mining method, 
productivity, geotechnical conditions, 
and develop the exploration platforms. 
To date, progress is at 1,461 of a total of 
2,025 meters. Construction was completed 
on the Chaquicocha Central exploration 
tunnel, with a total length of 623 meters, of 
which 391 meters were executed in 2019. 
Additionally, diamond drill holes were 
executed in Chaquicocha Subterráneo for a 
total of 33,234 meters.

Yanacocha continued working with local 
communities in the area of influence of 
the Yanacocha Sulfuros Project, creating 
local job opportunities, addressing their 
concerns regarding water, and 
reaching historic commitments. In 2019, 
Yanacocha achieved the commercial 
production of Quecher Main with the solid 
participation and support of contractors 
and local communities.

In 2019, Minera Yanacocha continued to 
maintain and improve its ISO 14001:2015 
certified environmental management 

42

43

2019AnnualReportSociedad Minera
Cerro Verde S.A.A.  (19.58 % BVN)

The Cerro Verde production unit is operated by Freeport–McMoRan and is located 30 km 
SW of the city of Arequipa, in the districts of Uchumayo and Yarabamba.

During 2019, Cerro Verde availed itself of two installment plan programs for 2012 
royalties, which it began to pay during the third quarter of 2019; and for the 2013 period.

In 2019, 143.5 million DMT were processed by flotation, which compares favorably with 
the 141.5 million DMT processed in 2018, with an ore grade of 0.362% copper, producing 
1,873,000 DMT of copper concentrates with an average grade of 23.17% copper and a 
recovery of 83.5%. Total production came to 915,677,000 pounds of copper, 28,390,000 
pounds of molybdenum, and 4.69 million ounces of silver contained in the concentrates. 
Additionally, 88.1 million pounds of copper were produced in cathodes.

The cash cost was USD 1.565 per pound of copper and the total cost was USD 1.906 per 
pound of copper produced.

In 2019, sales totaled USD 2.89 billion, making for net earnings of USD 390.4 million. The 
long-term debt was reduced from USD 1.023 billion to USD 826 million.

Investment totaled USD 283.5 million in capital projects, compared to USD 280.2 
million in 2018.

Since 2009, Cerro Verde has been involved in a dispute with the tax authorities over the 
collection of royalties for the periods from December 2006 through December 31, 2013. 
The installment payments for the periods of December 2006, 2007, and 2008 were 
completed in the fourth quarter of 2019. The periods from January 2009 to
September 2011 are being paid in installments. The royalties for October through 
December 2011 were paid in the fourth quarter of 2019.

There are currently no other tax periods in dispute with the tax authorities. Cerro 
Verde believes it was not required to make these payments according to the tax 
stability agreement signed in 1998 with the Peruvian government. Nevertheless, 
Cerro Verde has acted in good faith at all times, and continues to evaluate 
alternatives to defend its rights.

In 2019,

US$ 141.5   
million of DMTs
were processed.

44

45

2019AnnualReportPROYECTOS

Continuing with the implementation of the project 
management methodology described in Project Management 
for Mining: Handbook for Delivering Project Success (2015) 
by Terry L. Owen and Robin J. Hickson, and having completely 
closed the gaps identified in 2018 and 2019, the past few 
years have been marked by the maturation of our projects 
along the following lines:

46

47

2019AnnualReportI. Projects in the Feasibility Stage

II. Projects in the Prefeasibility Stage

SAN GABRIEL PROJECT (100% BVN)
The San Gabriel Project is an intermediate sulfidation epithermal deposit 
with gold, copper, and silver metal contents, located in the province of 
General Sánchez Cerro, in the Moquegua region.

TRAPICHE PROJECT (EL MOLLE VERDE S.A.C. - 100% BVN)
The Trapiche Project is a copper and molybdenum porphyry deposit from the Oligocene 
Age located on the southwestern side of the Andahuaylas-Yauri Belt, in the province of 
Antabamba, Apurimac region.

In 2019, the prefeasibility study was performed and concluded with 
Ausenco/Agnitia, which defines an underground mining operation 
using the Overhead Drift and Fill (ODF) method at a rate of 3,000 TPD, 
processed in a scalable gravimetric-CIL-ADR plant for the production of 
doré bars, based on the use of filtered tailings. Based on this study, the 
following resources and reserves have been estimated:

In 2019, the prefeasibility study was conducted and completed with the companies M3/
Mining PluPENKCB, which defined an open-pit mining operation at a rate of 45,000 TPD, 
processed in a crusher-leach pad-SX/EW plant for the production of copper cathodes. 
Based on the study, the following resource and reserve volumes have been estimated:

Reserves: 283.2 MT with 0.51%  Cu, representing 1.4 MT of Cu (leachable).

Reserves: 11.6 MT with 4.68 g/t of Au, representing 1.7 M oz/Au.

Resources: 540  MT with 0.31% Cu, representing 1.7 MT of Cu (floatable).

RIO SECO CU-AS INDUSTRIAL PLANT PROJECT (100% BVN)
The Rio Seco Industrial Plant Project consists of a hydrometallurgical 
process for the leaching of Cu-As concentrates from the El Brocal Unit 
that allows for the extraction of copper cathodes, a high-grade Au/Ag 
residue, and As in the stable form of scorodite crystals. 

In 2019, continuous industrial scale testing remained in effect in the 
Rio Seco pilot plant.

48

49

2019AnnualReportII. Projects in the Conceptual Stage

COIMOLACHE SULFUROS PROJECT (COMPAÑÍA MINERA COIMOLACHE S.A. - 40.95% BVN)
The Coimolache Sulfides Project consists of an epithermal arsenical copper mineralization 
covering an area of 2.0 by 2.0 km, and enriched copper located beneath the oxidized area 
of the Coimolache Mine.

In 2019, the conceptual study developed with the company M3/Mining PluPENKCB was 
completed, which suggests an open-pit operation at a production rate of 20-40K TPD, to 
be processed in a concentrating plant for the production of Cu-As concentrates, based on 
the use of filtered tailings. 

Additionally, the necessary field works were completed to support the basic engineering 
of the filtered tailings deposit to be concluded in the first quarter of 2020, as well as the 
updating of the resources model with SRK, defining:

Inferred resources: 933 MT with 0.32% Cu, 0.18 g/t Au, 7.89 g/t Ag, representing 3 MT Cu 
and 5.4 M oz/Au.

III. Projects Pending Entry 
into the Conceptual Phase

YUMPAQ PROJECT (100% BVN)
The Yumpaq Project is located 5 kilometers from our Uchucchacua 
Mine, and consists of a system of intermediate sulfidation veins running 
primarily northeast, in tension with the Cachipampa Fault, which controls 
the mineralization at Uchucchacua.

In 2019, field works were completed and the prefeasibility study was 
concluded with Agnitia, which defines overhead drift and fill (ODF)/
mechanized cut and fill underground operation at a rate of 1K TPD, which 
will be transported by truck to the Uchuchachu Unit for processing. Based 
on said study, the following reserve amounts have been calculated:

Reserves: 1.2 MT with 19.32 oz/t Ag, representing 22.6 M oz/Ag.

The subsequent development and construction of the Yumpag 
deposit will be included in the Uchuchacua Unit, and no longer as an 
independent project. 

EL FAIQUE PROJECT (100% BVN)
The El Faique Project is a volcanogenic massive sulfide (VMS) copper ore 
deposit hosted in the Mesozoic basin of Lacones, located in the province 
of Tambogrande, in the Piura region.

In 2019, the final version of the file was submitted to Pro-Inversión, and is 
currently in the process of being reviewed by the Ministry of Energy and 
Mines (MINEM).

50

51

2019AnnualReportOTHER BUSINESSES

Consorcio Energético de Huancavelica S.A.
(CONENHUA) (100% BVN)

This Company has now been in business for 36 years. In 2019, its regulated transmission 
lines and substations were put up for sale, and formally changed owners in late 
December. This sale comprised those systems and assets whose revenue is set by the 
regulatory agency, Osinergmin, as follows:

52

53

2019AnnualReportSystem

Voltage

Length
(km)

Location

Trujillo Norte SS – Cajamarca Norte
SS Line

Cajamarca Norte SS - La Pajuela SS Line

Callali - Ares Line

Huancavelica-Ingenio Line and Input 
Substation

220

60

138

60

137

Cajamarca

Cajamarca

103.7

Arequipa

32.9

Huancavelica

Lomera Substation

220/60/23

-

Huaral

However, CONENHUA continues to operate and maintain the secondary transmission lines 
that supply power to Buenaventura’s mining and industrial operations and their respective 
substations, in both high and medium voltage. These operations are La Zanja, Coimolache, 
Uchucchacua, Río Seco, El Brocal, Julcani, and Tambomayo.

The performance of all of the abovementioned lines is as follows:

Voltage Level

External Fault
(Hours)

Own Fault 
(Hours)

Maintenance
(Hours)

Total
(Hours)

33 kV

60 kV

138 kV

220 kV

Total

5.18

59.71

6.99

0

0.19

3.98

11.99

0

3.39

53.68

37.89

0

71.88

16.16

94.96

8.76

117.37

56.87

0

183

The Huapa and Ingenio small hydroelectric 
plants generated a total of 12.268 GWh 
over the course of the year, to the benefit of 
Buenaventura’s operations.

Empresa de Generación Huanza has 
begun studies in search of renewable 
power sources to supply Buenaventura’s 
future projects, such as hydroelectric 
and photovoltaic power plants, both in 
the central part of the country and in the 
south, generally near its projects.

The consolidated economic results of 
Consorcio Energético de Huancavelica 
reported total operating revenue of USD 
59.69 M, operating profit of USD 36.197 
M, and net results, after income taxes, of 
USD 29.854 M.

At the request of El Molle Verde S.A. (EMV) 
the feasibility study was conducted for the 
supply of electricity to the Trapiche Project. 
The results indicated that the connection 
point to the National Grid System (SEIN) 
would be at the Cotaruse Substation, via 
a 220 kV transmission line to the future 
Trapiche 220/22.9 kV substation.

At the request of Compañía de Minas 
Buenaventura S.A.A. (BVN) the definitive 
study was completed for the “Chilota 
Substation - San Gabriel Substation 220 
kV Transmission Line” Project, which will 
supply electricity for the future operation 
of the San Gabriel Project. Area use 
negotiations were also concluded for the 
output bays in the Redesur  and Anglo-
American Chilota substation.

In terms of hydroelectric power plants, 
Empresa de Generación Huanza has 
continued to improve its facilities and 
electromechanical equipment, obtaining 
a generator availability of over 93% and 
generating 396.466 GWh.

54

55

2019AnnualReportProcesadora Industrial
Río Seco S.A. (100% BVN)

Procesadora Industrial Rio Seco is a Peruvian company engaged in 
the production of manganese sulfide from lead-silver-manganese 
concentrates from the Uchucchacua Unit. Rio Seco is located 
in Huaral, in the northern part of the department of Lima, 102 
kilometers from the city of Lima.

In 2019, the Acid Washing Plant processed 32,409 DMT of 
concentrate from the Uchucchacua Unit, with grades of 67.2 oz/t 
of silver, 11.5% lead, and 23.3% manganese. The acid washing 
operations achieve a concentrate with a higher silver grade and 
lower manganese content. The following table shows the results 
before and after acid washing:

Concentrate

TMS

Ag
Oz/TMS

Pb %

Mn %

Uchucchacua Concentrate

32,409

67.2

11.5

23.3

Rio Seco Concentrate

20,692

104.7

18.0

3.8

The Sulfuric Acid Plant  produced 18,463 MT of sulfuric acid with a 
purity of 98%. The plant uses wet sulfuric acid (WSA) technology, 
which is clean and environmentally friendly. 49.7% of the acid was 
produced from elemental sulfur, and 50.3% was produced from acid 
gas, which comes from the Acid Washing Plant.

The Crystallization Plant produced 21,795 MT of manganese sulfate monohydrate with 
two dryers. The distribution of production by dryer is shown in the following table:

Manganese Sulfate Monohydrate

Spray Dryer

Spin Flash Dryer

Total

TM

7,549

14,246

21,795

Buenaventura’s Research and Technological Innovation Center operates at the Río Seco 
facilities. This center has a pilot plant where research is being performed to develop 
an industrial process for cathodic copper production from copper concentrates with 
enargite from El Brocal.

Currently, an audit is being performed on the BVN Process to confirm the operating 
conditions and optimization of the industrial process prior to the start of the 
feasibility engineering.

Río Seco uses the highest safety and environmental standards, in constant coordination 
with the communities of Huaral and Sayán, the Lachay National Reserve, and the 
Municipalities of Huaral and Chancay, with which it conducts the participatory 
environmental monitoring program in the area.

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57

2019AnnualReportSAFETY

At Buenaventura, we believe that safety is a part of every 
process, not something separate. This means that safety 
management is the responsibility of the operating officer in 
charge of each process. Safety is part of our quality indicators, 
and a cross-cutting aspect throughout the entire company.

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59

2019AnnualReportIn 2019, the Accident Rate Index dropped to 1.61, 15% lower than in 2018 (1.90). Unfortunately, 
two fatal accidents were reported at the Uchucchacua and El Brocal mining units, compared 
to three such accidents in 2018. These results require us to continue making efforts and 
allocating resources to prevent accidents based on a critical risk management approach.

Our main activities were as follows:

›

›

›

›

›

Closer relations with 14 unions through awareness raising sessions called 
“Interiorizing Commitments for Life.”

Strengthening of team members from Buenaventura and contractors through the 
“A Pact for Life” program with a focus on personal commitment.

Structuring of the “Critical Risk Management” initiative, focused on the prevention 
of fatal accidents and those causing permanent disability. 

Involvement of supervisors, team members, and unions through a “participatory 
safety” approach.

Training for Buenaventura’s supervision line in the Leadership Program and the 
ICAM accident investigation methodology.

We continue to work to achieve a culture of safety that involves all of the team members of 
the Buenaventura family.

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61

2019AnnualReportENVIRONMENTAL 
MANAGEMENT

This year, the Company continued to carry out its activities with the 
goal of achieving the environmental sustainability of its operations. 
Its performance was based on appropriate operational monitoring 
and control, with a primarily preventive focus to minimize impacts 
on the environment; achieve the appropriate management of 
water resources, monitoring its quality and fostering the reuse 
and recirculation of water to our processes; reduce the disposal 
of barren material and waste through recycling; and prioritizing 
progressive closure when undertaking mine closure works.

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63

2019AnnualReportOver the course of the year, work was done on 74 environmental instruments, of which 
22 were approved, 22 are still under review, and 30 are still being drafted. We began 
developing important environmental impact assessments, such as those for the Trapiche 
Project, Río Seco Cobre, and Yumpag, as well as amendments to the environmental 
impact assessments for Julcani, Tambomayo, and Tantahuatay, property of Compañía 
Minera Coimolache. The supporting technical reports (ITSs) that enable the execution 
of low-impact components have been the most frequent instruments, with a total of 
25. Detailed environmental plans (PAD) were also prepared this year, through which 
we have adapted to the environmental regulations issued by the Ministry of Energy 
and Mines (MINEM) that will allow for the inclusion of existing components in a new 
environmental instrument. 

We recertified the Buenaventura Integrated Management System (SIB). The 
environmental facet of this system is based on ISO 14001 international standards. 
Elsewhere, with the goal of increasing the level of involvement in environmental 
processes, the Environmental Performance Index (IDA) was applied, determining a 
compliance level of 92% for different areas regarding commitments and action plans 
resulting from inspection findings, audits, and supervision activities; training plans; and 
the quality of resources intervened, among other aspects.

Water is a strategic input for different economic sectors, especially mining. Accordingly, 
our operations made an effort to ensure the efficient use of water resources, fostering 
the recirculation and reuse of water generated in the metallurgical process, achieving 
a rate of 94% in open-pit operations and 84% in underground operations. The water 
consumption rate compared to the quantity of ore processed was 0.02 m³/MT in open-
pit mines and 1.64 m³/MT in underground mines.

This year, we obtained 40 permits for water use: 19 treatment system authorizations 
(8 for industrial dumping, 8 for domestic dumping, and 3 for drinking water treatment 
systems) 5 water use rights, 9 authorizations for the execution of minor works 
(hydraulic infrastructure, flood control, watercourse cleanup); and 7 authorizations for 
hydrogeological studies.

40 PERMITS

WERE OBTAINED FOR 
WATER RESOURCES

We continued to bolster our participation, 
promotion, and dissemination of the 
results of the participatory water 
quality monitoring activities in the areas 
surrounding our operations. A total of 
36 activities were undertaken, with the 
participation of municipal and community 
authorities. These actions foster greater 
trust in our environmental performance, 
as well as serving as spaces for building 
local capacities and strengthening 
environmental management with a 
shared responsibility approach.

This year, the Environmental Assessment 
and Oversight Agency (OEFA) performed 
32 supervisory processes in the different 
units and projects, identifying 62 findings, 
with a rate of 1.9 findingPENvisit. This 
year, they placed particular emphasis 
on the mine closure works. Cumulative 
environmental contingencies as of 2019 
total PEN 5.81 M.

We continued promoting mine closure 
works, particularly progressive closure 
and post-closure works. Unfortunately, a 
significant number of our closure
.
works were affected by the presence 
of illegal and informal mining. We have 

reported this situation to the authorities, 
but have received no response. On the 
contrary, we have been forced to remedy 
these issues ourselves

As of December 31, 2019, the provision 
for mine closure, comprising not only 
units but exploration projects and 
environmental liabilities (including La Zanja 
and Coimolache) totaled USD 302 M. The 
works executed during the year totaled 
USD 12 M, mainly including rehabilitation 
and revegetation works. It is important 
to note that following a long post-closure 
period (10 years) the General Directorate 
of Mining-Related Environmental Affairs 
of the Ministry of Energy and Mines 
granted Final Closure Certification to the 
Rumimaqui Rifle environmental liability 
(Huancavelica) making it the first to 
be awarded nationwide. We have also 
continued developing the project for 
improved soils known as “Tecnosoles” 
at La Zanja, with the goal of validating a 
technology that guarantees the adequate 
rehabilitation of intervened areas, while 
also helping to reduce the water volumes 
requiring treatment.

64

65

2019AnnualReport            
SOCIAL 
MANAGEMENT

At Buenaventura, we firmly believe that mining is an 
essential driver of the country’s development and 
decentralization. Above all, it can generate progress in the 
communities near our different operations and projects.

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67

2019AnnualReportWe believe this positive impact is possible through a joint effort among enterprise, the 
community, and authorities. If we join forces in pursuing a common objective, together 
we will achieve sustainable development for all.

Based on this principle, we at Buenaventura perform our mining activities based on 
these four pillars:

1.

2.

3.

4.

Engage in and maintain relationships based on respect and trust with the 
communities inside the area of our projects and operations.

Always strive for sustainable development, with a view to shared social 
responsibility. Under this vision, all actors act as one.

Always bear in mind the need to care for the environment and water.

Always give the highest priority to our occupational health and safety policies 
in our activities.

n view of our first pillar, we actively participate in community life and development 
by joining forces with them, while respecting their traditions and customs. This helps 
forge bonds of trust that will ensure the sustainability of social investment projects. In 
compliance with this objective, we have participated in 336 social and cultural activities 
held by our neighboring communities and organized 331 activities together with them.

On a related note, in accordance with our transparency and open door policy, we focus 
on always maintaining direct communications so that we can share and fully explain 
the work we have done and clear up any doubts that the public may have. Using the 
rapport-building spaces that we create through our Permanent Information Offices, 
we have carried out 391 communications activities, including door-to-door visits, 
workshops, guided visits, and more.

We seek to promote the sustainable development of our communities by helping to foster 
a dynamic economy based through improved employability and local entrepreneurship. 
As a result of these efforts, 63% of our team members come from the regions where we 
operate, and local businesspeople have billed Buenaventura a total of 117 million soles for 
the provision of services and the sale of goods to our units.

To improve local production, we also work 
to strengthen traditional activities and 
market their products with the execution 
of the Buenaventura PRA in Lima, Pasco, 
Arequipa, Moquegua, and Huancavelica, 
and the Productive Development Projects 
in Cajamarca. Thanks to this effort, local 
producers achieved over 10 million soles in 
sales in 2019, for a total of nearly 45 million 
soles in sales since 2014.

Our concern with improving the population’s 
quality of life in our areas of influence has 
led us to execute infrastructure projects, 
mainly in the form of tax-deductible 
works. In 2019, we delivered works such 
as pavement and sidewalks in the Puente 
Piedra neighborhood of Oyón (Lima) and the 
expansion and improvement of the Morán 
Pata SAP in Hualgayoc (Cajamarca). During 
the same period, we managed to leverage  
22.7 million soles for the performance 
of water and sanitation projects in the 
village of Gordillos, in the district of Catilluc 
(Cajamarca) and the district of Ccochaccasa 
(Huancavelica); pavement and sidewalks in 
the district of Antabamba (Apurímac) in the 
populated center of Nuevo Smelter, district 
of Tinyahuarco, and in the neighborhood of 

Uliachin, district of Chaupimarca (Pasco); and 
sprinkler irrigation in the populated center 
of Ruiz Señor, district of Catilluc (Cajamarca).

At the same time, Buenaventura has also 
demonstrated our concern for education 
and health in the country’s most isolated 
areas, carrying out different projects 
such as “Aprender para Crecer” and 
“Enseña Perú.” Through these projects, 
we seek to build teachers’ capacities 
and develop skills among primary 
and secondary school students. These 
projects also include the Comprehensive 
Scholarship Program in Uchucchacua, 
Orcopampa, La Zanja, Julcani, and San 
Gabriel; as well as support for local 
institutions of higher education.

In light of the foregoing, these pages will 
provide a detailed report on the activities 
we performed in 2019. Over the course of 
the year, we reaffirmed our commitment to 
continuing to work toward sustainability, 
as always within a framework of safety, 
respect for communities, and care of the 
environment. Our goal is to promote the 
sustainable development of our areas of 
influence and our country.

68

69

2019AnnualReportECONOMIC AND 
FINANCIAL 
REPORT

70

71

2019AnnualReportThe Company’s net loss for fiscal year 2019 
was USD 28.5 million, compared to a net loss 
of USD  11.7 million in fiscal year 2018.
This difference was due mainly to a drop 
in net sales resulting from lower volume 
(USD -322 M) counteracted by higher prices 
(USD +37 M) a lower cost of sales (USD 
100 M) lower exploration expenditures in 
the operating units (USD 46 M) revenue 
from affiliates (USD 49 M) and deferred tax 
revenue (USD 48 M).

On a consolidated basis, the metal that 
accounted for the highest percentage of 
our sales in terms of value in 2019 was 
gold, with 29%, followed by silver with 
25%, then copper with 23%, zinc with 15%, 
and lead with 9%.

The net debt-to-EBITDA ratio closed out 
the year at 2.06x.

During 2019, the final cash position fell from 
USD 369 to USD 210 million, and the total 
CAPEX for the year was USD 103 M.

As of December 31, 2019, we had 989 
common shareholders. Of these, 22.4% 
are shareholders domiciled in Peru, while 
77.56% are not. 

We also had 886 shareholders with 
investment shares.

The ADR program on the New York 
Stock Exchange (NYSE) reached a trade 
volume of USD 4,606,152,048 in 2019 
(295,266,641 ADSs).

As of December 31, 2019, the number of 
outstanding ADSs was 212,545,083, which 
represents 77.32% of the Company’s total 
outstanding shares. 

29%, 

WITH                          GOLD WAS THE METAL 
THAT ACCOUNTED FOR THE HIGHEST 
PERCENTAGE OF OUR SALES IN TERMS OF 

72

73

2019AnnualReportMANAGEMENT’S 
ANALYSIS AND 
DISCUSSION

The main changes in the consolidated financial statements 
for the twelve-month periods ended December 31, 2019 
and 2018, are explained below: 

(Figures in U.S. dollars are expressed in thousands, except 
for metal prices and quantities)

74

75

2019AnnualReportNet Sales

In fiscal year 2019, net sales of goods totaled USD 821,930, compared to sales of USD 
1,106,329 in fiscal year 2018, representing a decrease of 26%. This change is mainly due 
to the following factors:

a.  Gold Sales
The average sale price of this metal rose from USD1,267.99/oz in 2018 to USD 1,405.35/
oz in 2019, or 11% higher. However, the volume of gold sales was 143,949 oz less than in 
2018. The combined effect resulted in sales that were USD 157,683 lower in 2019 than in 
2018. The lower revenue corresponds primarily to the net effect of the decrease in sales 
at the Orcopampa and La Zanja Units, by USD 90,355  and USD 50,659, respectively, as a 
consequence of the decrease in volumes sold.

b.  Silver Sales
The average sale price of this metal rose from USD 15.08/oz from 2018 to USD 16.36/
oz in 2019, an increase of 8% in the price. However, silver sales were 5,781,657 oz 
lower than in 2018. The combined effect led to sales that were USD 63,951 in 2019 
than in 2018. The lower revenue was the result of the net effect of the drop in sales 
from the Uchucchacua and Tambomayo Mining Units by USD 58,130 and USD 15,997, 
respectively, as a consequence of the lower volumes sold, partially offset by the 
increase at the Colquijirca Unit of USD 11,856 due to the increase in volumes sold and 
average prices negotiated. 

c. Zinc Sales
The average sale price of this metal fell from USD 2,680.81/MT in 2018 to USD 
2,490.60/MT in 2019, representing a 7% decrease in price. However, 1,471 fewer MT 
of zinc were sold compared to 2018. The combined effect was USD15,349 less in sales 
revenue in 2019 than in 2018.

The lower revenue was the effect of the drop in sales from the Colquijirca and 
Uchucchacua Mining Units by USD 9,968 and USD 7,051, respectively, as a consequence 
of the decrease in volumes and average negotiated prices, partially offset by the 
increase in sales from the Tambomayo Mining Unit by USD 1,670, as a consequence of 
the higher volumes sold.

d. Copper Sales 
The average sale price of this metal fell from USD 6,277.40/MT in 2018 to USD 5,808.47/
MT in 2019, representing a drop of 7% in price. Additionally, 2,743 fewer MT of copper were 
sold compared to 2018. The combined effect was USD 36,457 less in sales revenue in 2019 
than 2018. The drop in revenue was mainly due to sales from the Colquijirca Unit that were 
USD36,629 lower, primarily as a result of volumes sold and average negotiated prices.

e. Deductions
During 2019, deductions applied for maquila (tolling) and penalties on concentrate sales 
jointly totaled USD 220,306, compared to USD 192,684 in 2018. These amounts have 
been deducted from the total net sales in each year.

f. Sales of Services 
In fiscal year 2019, net sales for services totaled USD 23,661, compared to sales of USD 
24,001 in fiscal year 2018, representing a drop of 1%.

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77

2019AnnualReportOperating Costs

Operating Expenditures

In 2019, operating costs totaled USD 799,582, compared to USD 967,696 for 2018, 
representing a decrease of 17%. This drop was mainly due to the following line items:

a. Cost of Sale of Goods, Not Including Depreciation or Amortization 
The “Cost of Sale of Goods, Not Including Depreciation or Amortization” item fell by USD 
100,507, from USD 613,381 in 2018 to USD 512,875 in 2019, representing a decrease of 
16%. The drop in cost of sales is due mainly to the production in the Orcopampa and La 
Zanja Units, which was USD 42,267 and USD 29,042 lower, respectively; as well as a 
drop of USD 23,294 in the Uchucchacua Unit as a result of lower production and sales 
caused by the 22-day halt that occurred in 2019.

b. Depreciation and Amortization
The “Depreciation and Amortization” item dropped by USD 12,544, going from USD 
238,879 in 2018 to USD 226,335 in 2019, representing a decrease of 5%. This decrease 
occurred mainly due to the net effect of: (i) a drop of USD 24,985 at the La Zanja Mining 
Unit as a result of the increase in the life of mine and the lower depreciable base; 
partially offset by (ii) increases of USD 6,669 and USD 6,628 at the Colquijirca and 
Tambomayo Mining Units, respectively.

c. Exploration in Operating Units 
The “Exploration in Operating Units” fell by USD 45,567, going from USD 89,730 
in 2018 to USD 44,163 in 2019, due primarily to the decrease in exploration in the 
Orcopampa, Uchucchacua, and Tambomayo Units by USD 20,523, USD 11,980, and 
USD 8,940, respectively.

d. Mining Royalties
The “Mining Royalties” item fell by USD 8,556, going from USD 21,388 in 2018 to USD 
12,832 in 2019 as a result of the lower sales during 2019.

Operating expenditures remained similar to the previous year, going from USD 124,721 
in 2018 to USD 126,319 in 2019, making for an increase of 1%. This increase was 
mainly caused by the net effect of: (i) lower exploration expenditures in no-operating 
areas, by USD 24,428; (ii) USD 33,735 less in revenue from the insurance recovery in 
2018 involving the El Brocal subsidiary; partially offset by (iii) lower expenses for the 
contingencies provision by USD 8,280 as a result of a decrease in revenues from USD 
11,248 in 2018 compared to USD 2,968 in 2019; iv) expenses of USD 2,083 for the long-
term asset deterioration provision for the Julcani Mining Unit in 2019 compared to a 
recovery of the USD 5,693 provision in 2018 from the La Zanja subsidiary.

Other Revenue (Expenditures) Net

“Other Revenue (Expenditures) Net” rose by USD 45,743, going from a loss of USD 31,265 
in 2018 to a gain of USD 14,478 in 2019. This change is due to the net share in the results of 
related companies. This item represented a loss of USD 1,144 in  2018, compared to a gain of 
USD 47,710 in 2019. This increase is primarily the result of the net effect of the net earnings 
of Sociedad Minera Cerro Verde S.A.A., which were USD 53,007 higher, and Compañía Minera 
Coimolache S. A., which were USD 1,889 higher, partially offset by a net loss by Minera 
Yanacocha S.R.L., which was USD 5,998 more than the previous year.

78

79

2019AnnualReportIncome Tax Provision

This item consists of “Income Tax” and “Mining Royalties and Special Mining Tax.” 

a. Income Tax 
This item went from an expenditure of USD 22,462 in 2018 to a revenue of USD 
25,766 in 2019.

b. Mining Royalties and Special Mining Tax 
This item went from an expenditure of USD 4,417 in 2018 to an expenditure of USD 
176 in 2019.

Non-Controlling Interest

This item registered a loss of USD16,251 in 2019, compared to a gain of USD 1,791 in 2018. 
This change was mainly due to the decrease in the non-controlling results of the El Brocal 
subsidiary (profit of USD 2,880 in 2018 compared to a loss of USD 13,432 in 2019).

80

81

2019AnnualReportSUMMARY OF 
OPERATIONS

82

83

2019AnnualReportTable 1
Summary of Operations 2019

Description

Ore Treated

Ore Grades       Ag

                          Au

                          Cu

                          Pb

                          Zn

Bulk Concentrate (Ag-Pb-Cu-Au)

Gold-Silver Concentrate

Lead-Silver-Gold Concentrate 

Copper Concentrate

Zinc Concentrate

Ounces of Silver

Ounces of Gold

Metallic Copper

Metallic Lead

Metallic Zinc

Ag Recovery

Au Recovery

Cu Recovery

Pb Recovery

Zn Recovery

Unit

DMT

oz/DMT

g/TMS

%

%

%

DMT

DMT

DMT

DMT

DMT

oz

oz

MT

MT

MT

%

%

%

%

%

Cost Applicable to Sales Ag

Cost Applicable to Sales Au

Cost Applicable to Sales Zn

Cost Applicable to Sales Cu

US$ / Oz

US $/ Oz

US $ /MT

US $/MT

84

Tambomayo

Orcopampa Uchucchacua

Julcani

La Zanja

640,914

127,079

1,335,018

123,818

1,577,645

Description

Unit

Tantahuatay

Yanacocha

Tajo Norte Marcapunta

Cathodes

Concentrate

El Brocal

Cerro Verde

4.54

5.80

1.35

1.99

18,432

19,999

2,556,391

99,245

7,603

9,672

87.76

83.10

88.1

75.8

0.19

10.30

832

18,791

41,660

76.76

96.75

9.06

1.52

2.20

0.22

0.46

21.90

0.09

0.16

0.86

97,204

31,500

89,651

3,760

48,486

10,640,913

2,609,006

150

185

966

96.22

41.01

94.05

91.01

 13.49 

17,635

19,144

87.96

86.87

65.08

 12.15 

 679 

 1,489 

 1,233 

Ore Treated

Ore Grades             Ag.

                                Au

                                Cu

                                Pb.

                                Zn.

Bulk Concentrate (Ag-Pb-Cu-Au)

Lead-Silver Concentrate

Copper – Silver Concentrate 

Copper Concentrate

Zinc Concentrate

Metallic Molybdenum

Leached Copper

Ounces of Silver

Ounces of Gold

Metallic Copper

Metallic Lead

Metallic Zinc

Ag Recovery

Au Recovery

Cu Recovery

Pb Recovery

Zn Recovery

%

%

%

DMT

DMT

DMT

DMT

DMT

DMT

DMT

oz

oz

MT

MT

MT

%

%

%

%

%

Cost Applicable to Sales Ag

Cost Applicable to Sales Au

Cost Applicable to Sales Zn

Cost Applicable to Sales Cu

US$ / Oz

US $/ Oz

US $ /MT

US $/MT

DMT

13,878,907

3,407,914

2,926,124

27,059,000

143,467,000

34,695,000

oz/DMT

g/DMT

0.342

0.54

1.38

1.26

2.42

50,355

89,218

0.77

0.54

1.67

174,717

0.36

12,877

754,306

162,196

15.90

67.64

684

2,974,075

1,392,363

4,685,092

23,599

43,580

63.32

54.97

55.00

2,007

18,726

43,394

62.07

37.03

88.68

39,961

415,344

58.75

83.54

5,385

3,450

737,238

527,336

776

85

2019AnnualReportTable 2: Reserves as of December 31, 2019

ZINC

BVN %
Share

DMT (000)

% Zn

DMT (000)

BVN
DMT(000)

Proven and Probable Reserves

GOLD

Orcopampa

Julcani

Tambomayo

La Zanja

La Zanja (in Pads)

Tantahuatay (Oxidos)

Tantahuatay Pad

El Brocal Marcapunta Norte

Yanacocha

San Gabriel

Total Gold Reserves

SILVER

Uchucchacua (Silver-Lead-
Zinc)

Julcani

Orcopampa

Tambomayo

La Zanja

La Zanja (in Pads)

Tantahuatay Oxidos

Tantahuatay Pad

El Brocal (Tajo Norte - Smelter)

El Brocal Marcapunta Norte

Yanacocha

Cerro Verde (for Milling)

Total Silver Reserves

86

BVN %
Share

DMT (000)

Oz/DMT

Ounces (000)

BVN
Ounces (000)

100.00

100.00

100.00

53.06

53.06

40.10

40.10

61.43

43.65

100.00

626

255

            2,446 

560

0.321

0.006

0.120

0.013

66,859

0.011

34,503

221,834

11,810

0.023

0.031

0.142

201

1

295

7

5

737

5

805

6,938

1,675

10,670

201

1

295

4

2

296

2

495

3,028

1,675

5,999

BVN %
Share

DMT (000)

Oz/DMT

Ounces (000)

BVN
Ounces (000)

100.00

100.00

100.00

100.00

53.06

53.06

40.10

40.10

61.43

61.43

43.65

19.58

10,426

255

626

2,446

560

66,859

42,216

34,503

227,718

4,169,880

9.46

21.02

0.49

4.46

0.27

0.26

1.08

1.15

0.45

98,598

5,361

305

10,898

152

109

17,145

314

45,581

39,799

102,473

113,314

98,598

5,361

305

10,898

80

58

6,874

126

28,000

24,448

44,729

22,187

Uchucchacua (Silver-Lead-
Zinc)

Tambomayo

El Brocal (Tajo Norte - Smelter 
Zn - Pb - Ag )

Total Zinc Reserves

LEAD

Uchucchacua (Silver-Lead-
Zinc)

Julcani

Tambomayo

El Brocal (Tajo Norte - Smelter 
Zn - Pb - Ag )

Total Lead Reserves

COPPER

Julcani

El Brocal Marcapunta Norte

El Brocal (Tajo Norte - Smelter 
Cu - Ag)

Trapiche

Yanacocha

Cerro Verde (for Milling)

Cerro Verde (for Leaching)

Total Copper Reserves

100.00

100.00

61.43

10,426

2,446

14,756

2.03

1.66

2.52

BVN %
Share

DMT (000)

% Pb

DMT (000)

100.00

100.00

100.00

61.43

10,426

255

2,446

14,756

1.19

2.00

1.27

1.17

212

41

371

624

124

5

31

173

334

BVN
DMT(000)

212

41

228

481

124

5

31

106

267

BVN %
Share

DMT (000)

% Cu

DMT (000)

BVN
DMT(000)

100.00

61.43

61.43

100.00

43.65

19.58

19.58

255

34,503

27,460

283,200

104,388

4,169,880

95,353

0.43

1.30

1.71

0.51

0.63

1

450

470

1,444

660

12,792

210

1

277

289

1,444

288

2,505

41

16,028

4,844

MOLYBDENUM

BVN %
Share

DMT (000)

% Mo

DMT (000)

Cerro Verde (for Milling)

19.58

4,169,880

Total Molybdenum 
Reserves

BVN
DMT(000)

317

317

62

62

434,048

241,665

Prices used to calculate reserves: Gold 1,300 USD/oz; Silver 16.30 USD/oz; Lead 2,200 USD/MT; Zinc 2,800 USD/MT; and 
Copper 6,200 USD/MT.

87

2019AnnualReportTable 3: Reserves as of December 31, 2018

Proven and Probable Reserves

BVN %
Share

DMT (000)

Oz/DMT

Ounces (000)

BVN
Ounces (000)

100.00

100.00

100.00

100.00

53.06

53.06

40.10

40.10

61.43

43.65

922

251

134

3,391

3,120

0.331

0.006

0.007

0.120

0.012

57,715

0.012

19,804

0.013

306

1

1

408

37

11

666

4

249

7,423

9,105

306

1

1

408

19

6

267

2

153

3,240

4,403

BVN %
Share

DMT (000)

Oz/DMT

Ounces (000)

BVN
Ounces (000)

100.00

100.00

100.00

100.00

100.00

53.06

53.06

40.10

40.10

61.43

61.43

43.65

19.58

11,941

251

134

922

3,391

3,120

57,715

58,982

19,804

4,191,354

7.69

21.37

6.56

1.01

4.17

0.23

0.31

1.13

0.70

91,844

5,368

878

932

14,133

709

210

17,910

57

66,396

13,956

104,571

113,683

91,844

5,368

878

932

14,133

376

111

7,181

23

40,787

8,573

45,645

22,259

GOLD

Orcopampa

Julcani

Mallay

Tambomayo

La Zanja

La Zanja (in Pads)

Tantahuatay (Oxidos)

Tantahuatay Pad

El Brocal Marcapunta Norte

Yanacocha 

Total Gold Reserves

SILVER

Uchucchacua (Silver-Lead-Zinc)

Julcani

Mallay

Orcopampa

Tambomayo

La Zanja

La Zanja (in Pads)

Tantahuatay Oxidos 

Tantahuatay  PAD

El Brocal (Tajo Norte - Smelter)

El Brocal Marcapunta Norte

Yanacocha 

Cerro Verde (for Milling)

Total Silver Reserves

88

ZINC

Uchucchacua (Silver-Lead-Zinc)

Mallay

Tambomayo

El Brocal (Tajo Norte - Smelter)

Total Zinc Reserves

LEAD

Uchucchacua (Silver-Lead-Zinc)

Julcani

Mallay

Tambomayo

El Brocal (Tajo Norte - Smelter)

Total Lead Reserves

COPPER

Julcani 

El Brocal Marcapunta Norte

El Brocal (Tajo Norte - Smelter)

Cerro Verde (for Milling)

Cerro Verde (for Leaching)

Yanacocha

Total Copper Reserves 

BVN %
Share

DMT (000)

% Zn

DMT (000)

BVN
DMT(000)

100.00

100.00

100.00

61.43

11,941

134

3,391

21,083

1.79

6.74

1.06

0.94

BVN %
Share

DMT (000)

% Pb

DMT (000)

100.00

100.00

100.00

100.00

61.43

11,941

251

134

3,391

21,083

1.12

2.04

3.67

0.73

0.48

214

9

36

502

761

134

5

5

25

230

399

BVN
DMT(000)

214

9

36

308

567

134

5

5

25

141

310

BVN %
Share

DMT (000)

% Cu

DMT (000)

BVN
DMT(000)

100.00

61.43

61.43

19.58

19.58

43.65

251

19,804

37,899

4,191,354

133,107

0.47

1.35

1.11

1

266

630

12,895

222

660

1

164

387

2,525

43

288

14,674

3,408

MOLYBDENUM

BVN %
Share

DMT (000)

% Mo

DMT (000)

BVN
DMT(000)

Cerro Verde (for Milling)

19.58

4,191,354

Total Molybdenum 
Reserves

322

322

63

63

89

430,645

238,110

Prices used to calculate reserves: Gold 1,300 USD/oz; Silver 17 USD/oz; Lead 2,100 USD/MT; Zinc 2,500 USD/MT; and 
Copper 7,000 USD/MT.

2019AnnualReportTable 4
Non-Reserve Minerals as of December 31, 2019

Non-Reserve Minerals (Measured + Indicated Resources)

GOLD

Orcopampa

Julcani

Tambomayo

San Gabriel  

Trapiche 

La Zanja

Alejandra (La Zanja)

Tantahuatay (Oxidos)

El Brocal (Tajo Norte - Smelter 
Cu  - Ag)

El Brocal Marcapunta Norte 

El Brocal   Marcapunta  Sur 
(Oeste) 

Yanacocha 

Yanacocha (Conga)1

Yanacocha (Conga)2

Total Gold Reserves

BVN %
Share

DMT (000)

Oz/DMT

Ounces (000)

BVN
Ounces (000)

100.00

100.00

100.00

100.00

100.00

53.06

53.06

40.10

61.43

61.43

61.43

43.65

43.65

43.65

238

167

542

7,677

868,300

12,906

123

11,246

1,080

26,285

27,154

268,852

536,015

388,268

0.221

0.000

0.085

0.184

0.001

0.014

0.703

0.009

0.005

0.023

0.034

0.029

0.023

0.012

53

0.0

46

1,416

614

182

86

99

5

610

925

7,792

12,593

4,880

53

0.0

46

1,416

614

96

46

40

3

375

568

3,401

5,497

2,130

29,301

14,285

SILVER

Orcopampa

Uchucchacua
(Silver - Lead - Zinc - )

Julcani

Tambomayo

San Gabriel 

Trapiche 

La Zanja 

Alejandra (La Zanja)

Tantahuatay - Oxidos

El Brocal (San Gregorio)

El Brocal (Tajo Norte - 
Smelter)

El Brocal Marcapunta Norte 

El Brocal   Marcapunta  Sur 
(Oeste) 

Yanacocha 

Yanacocha (Conga)1

Yanacocha (Conga)2

Total Silver Reserves

BVN %
Share

DMT (000)

Oz/DMT

Ounces (000)

BVN
Ounces (000)

100.00

100.00

100.00

100.00

100.00

100.00

53.06

53.06

40.10

61.43

61.43

61.43

61.43

43.65

43.65

43.65

238

3,140

167

542

7,677

868,300

12,906

123

11,246

79,934

11,629

26,285

27,154

45,777

536,015

388,268

0.50

11.26

20.96

4.16

0.23

0.10

0.28

3.74

0.30

0.31

0.45

0.87

1.37

0.58

0.07

0.04

119

35,368

3,502

2,256

1,729

52,115

3,669

459

3,381

24,620

5,252

22,802

37,276

26,432

37,784.000

14,461.000

119

35,368

3,502

2,256

1,729

52,115

1,947

244

1,356

15,124

3,226

14,007

22,899

11,537

16,493

6,312

271,225

188,234

90

91

2019AnnualReportZINC

Uchucchacua
(Silver - Lead - Zinc)

Tambomayo

El Brocal (San Gregorio)

El Brocal (Tajo Norte - Smelter 
Zn - Pb - Ag)

Total Zinc Reserves

LEAD

Uchucchacua
(Silver - Lead - Zinc)

Julcani

Tambomayo

El Brocal (San Gregorio )

El Brocal (Tajo Norte - Smelter 
Zn - Pb - Ag)

Total Lead Resources

BVN %
Share

DMT (000)

% Zn

DMT (000)

BVN
DMT(000)

100.00

100.00

61.43

61.43

3,140

542

79,934

10,549

1.90

1.09

5.22

3.15

60

6

4,175

332

60

6

2,560

204

4,573

2,829

BVN %
Share

DMT (000)

% Pb

DMT (000)

BVN
DMT(000)

100.00

100.00

100.00

61.43

61.43

3,140

167

542

79,934

10,549

1.21

1.26

0.79

1.53

0.97

38

2.1

4

1,221

102

1,368.2

38

2.1

4

749

63

856

COPPER

Julcani

San Gabriel 

Trapiche 

El Brocal Marcapunta Norte 

El Brocal Marcapunta  Sur 
(Oeste) 

El Brocal
(Tajo Norte - Smelter Cu - Ag)

Yanacocha

Yanacocha (sulfuros)

Yanacocha (Conga)1

Yanacocha (Conga)2

Total Copper Resources

BVN %
Share

DMT (000)

% Cu

DMT (000)

BVN
DMT(000)

100.00

100.00

100.00

61.43

61.43

61.43

43.65

43.65

43.65

43.65

167

7,677

868,300

26,285

27,154

1,080

22,376

110,826

536,015

388,268

0.27

0.06

0.37

1.63

0.89

1.27

0.22

0.64

0.28

0.19

0

4

3,247

430

242

14

49

50,000

1,501

738

56,225

0

4

3,247

264

149

8

21

21,825

655

322

26,497

Prices used to calculate resources: Gold 1,300 USD/oz; Silver 16.30 USD/oz; Lead 2,200 USD/MT; Zinc 2,800 USD/MT; and 
Copper 6,200 USD/MT.

92

93

2019AnnualReportTable 5: Commercial 

Table 5: Headcount

Price of Metals Sold

Personnel as of December 31, 2019

Gold (USD/oz)

Silver (USD/oz)

Lead (USD/MT)

Zinc (USD/MT)

Copper (USD/MT)

Volumes of Metals Sold

Gold (oz)

Silver (oz)

Lead (MT)

Zinc (MT)

Copper (MT)

 2019

 1,405 

 16.36 

 1,939 

 2,492 

 5,808 

 2019

180,876

 18,224,320 

 45,995 

 59,953 

 41,027 

2018

1,268  

 15.09 

 2,141   

 2,686 

 6,277  

2018

324,864

 24,464,648 

 41,601 

 64,793 

 43,770 

Units

Julcani

Recuperada

Orcopampa

Uchucchacua

Mallay

Poracota

Tambomayo

Shila Paula

Arequipa

San Gabriel

Lima (Projects)

Lima

Total Buenaventura

La Zanja

Conenhua

Molle Verde

Rio Seco

El Brocal

Coimolache

Management Executives Employees Mine Comp. 

Mine 
Workers

Company 
Total

Contractors

Overall 
Total

Company

0

0

1

1

0

0

1

0

0

1

1

21

26

0

1

1

1

4

1

56

3

53

108

2

0

80

1

5

15

17

198

538

31

20

22

17

168

87

4

1

1

14

0

0

2

0

3

0

12

90

127

0

65

2

2

188

5

389

44

0

117

128

6

0

110

0

0

3

0

0

87

0

270

255

5

0

153

12

0

0

1

1

191

4

442

506

13

0

346

13

8

19

31

310

795

32

469

986

36

911

2,010

2,516

0

0

512

0

0

232

22

46

13

0

858

13

8

251

53

356

408

784

1,883

4,118

6,001

25

0

5

67

0

76

34

20

1

0

317

44

90

106

31

87

677

213

624

49

323

111

2,731

1,472

714

155

354

198

3,408

1,685

581

1,200

3,087

9,428

12,515

Overall Total 

34

883

94

95

2019AnnualReportTable 5: Headcount

Changes in Employee Numbers

Unit

Julcani

Recuperada

Orcopampa

Uchucchacua

Antapite

Poracota

Mallay

Lima

Shila Paula

San Gabriel

Breapampa

Molle Verde

Rio Seco

La Zanja

Conenhua

Brocal

Coimolache

Tambomayo

Total

2019

2018

2017

191

4

450

506

0

0

13

341

13

19

0

31

87

90

106

677

213

346

180

4

569

528

0

0

74

364

30

18

0

15

93

140

109

748

198

380

195

4

597

535

0

0

127

384

34

22

0

12

88

162

167

816

182

392

 3,087 

 3,450 

 3,717 

Table 5: Total Production 

% Share

Ag oz

Au oz

Pb DMT

Zn DMT

Cu DMT

Tambomayo

Orcopampa

Uchucchacua

Julcani

El Brocal

La Zanja

Tantahuatay

Yanacocha

Cerro Verde

100%

100%

100%

100%

61.43%

53.06%

40.10%

43.65%

19.58%

2,556,391 

18,791 

10,640,913 

2,609,006 

4,366,438 

97,204 

754,306 

737,239 

4,685,092 

99,245 

41,660 

150 

18,726 

31,500 

162,196 

527,337 

7,603 

9,672 

9,672 

17,635 

966 

23,599 

19,144 

19,144 

43,580 

43,580 

Total Content

26,465,380 

880,814 

49,803 

72,396 

498,883 

Table 5: Production Attributable to Buenaventura

Ag oz

Au oz

Pb DMT

Zn DMT

Cu DMT

Tambomayo

Orcopampa

Uchucchacua

Julcani

El Brocal

La Zanja

Tantahuatay

Yanacocha

Cerro Verde

2,556,391 

18,791 

10,640,913 

2,609,006 

2,682,303 

51,576 

302,439 

321,805 

917,341 

99,245 

41,660 

150 

11,504 

16,714 

65,032 

230,183 

7,603 

9,672 

17,635 

966 

14,497 

19,144 

26,771 

185 

26,657 

89,149 

Total Content

20,100,565 

464,488 

40,701 

55,587 

115,990 

96

97

2019AnnualReportSHAREHOLDING 
STRUCTURE

98

99

2019AnnualReportCIA. DE MINAS
BUENAVENTURA S.A.A.

Securities Area

Shareholding Structure and Nationality with Stake of Over 5%

As of December 31, 2019

Total Common Shares

274,889,924

Name

Stake Percentage

Nationality

Compañía Minera Condesa S.A. 

Roque Benavides Ganoza

Raúl Benavides Ganoza

The Bank of New York Mellon Dr.(*)(**)

Total

Peruvian

Peruvian

 Peruvian

USA

 7.69 

 5.06 

 5.03 

 77.32

95.10

(*) THE BANK OF NEW YORK MELLON DR. Depositary bank that holds ADRs.
(**) Includes members of the Benavides family.

Shareholder Composition, Common 
Shares with Voting Rights as of 
December 31, 2019

Holdings

No. of Shareholders

Stake Percentage

Less than 1%

From 1% to 5%

From 5% to 10%

Over 10%

Total

984

1

3

1

989

3.38

1.53

17.77

77.32

100.00

Shareholder Composition, Investment 
Shares as of December 31, 2019

Holdings

No. of Shareholders

Stake Percentage

Less than 1%

From 1% to 5%

From 5% to 10%

Over 10%

Total

  881

    3

    1

    1  

886

27.82

  3.37

  5.45

 63.35

100.00

100

101

2019AnnualReportShareholding Structure by Investor Type
as of December 31, 2019

Share: PEP612001003

Holdings by type of holder of the share or security representing a stake
comprising the S&P Perú Selective Index
(as of the close of the fiscal year)

No. of Holders

Stake %

1

2

3

4

5

6

7

8

9

Members of the Company’s Board of Directors and senior management, 
including relatives 

Company employees not included in number 1

Individuals not included in numbers 1 and 2

Pension funds managed by the private pension fund management companies under 
the supervision of the Superintendency of Banking, Insurance, and Private Pension 
Fund Management Companies (SBS)

Pension funds managed by the Pension Normalization Office  (ONP)

Peruvian government agencies, with the exception of the case included in number 5

Banks, financial entities, municipal savings banks, SME development agencies, 
agricultural credit banks, and savings and loan cooperatives under the supervision 
of the Superintendency of Banking, Insurance, and Private Pension Fund 
Management Companies (SBS) 

Insurance companies under the supervision of the Superintendency of Banking, 
Insurance, and Private Pension Fund Management Companies

Brokerage agents under the supervision of the Peruvian Securities and 
Exchange Commission (SMV)

10

Investment funds, mutual funds, and trusts under the scope of the Stock Market 
Act and the Investment Funds Act, and bank trusts under the scope of the General 
Financial System Act 

17

0

925

1

0

1

0

1

1

0

12.90%

0.00%

1.84%

0.00%

0.00%

0.01%

0.00%

0.00%

0.00%

0.00%

Free-standing trusts and foreign bank trusts, to the extent they can be identified 

Foreign depositaries that are listed as holders of the share as part of ADR or 
ADS programs

Foreign depositaries that are listed as holders of shares not included in number 12

Foreign custodians listed as shareholders

Entities not included in the preceding numbers

Shares belonging to the S&P/BVL Perú Select Index or securities representing these
shares in the Company´s portfolio

11

12

13

14

15

16

Total

0

1

0

0

40

2

0.00%

77.32%

0.00%

0.00%

0.23%

7.69%

989

100.00%

Holdings by type of holder of the share or security representing a stake comprising 
the S&P Perú Selective Index (as of the close of the fiscal year)

No. of Holders

Stake %

Domiciled

Non-Domiciled

Total

940

49

989

22.44%

77.56%

100.00%

102

103

2019AnnualReportSHARE AND ADR 
BEHAVIOR

104

105

2019AnnualReportShare and ADS Behavior in 2019

Share Price

BVN Securities - ADS Price

Buenaventura Common Share (PEN)

Open

Close

High

Low     

Average

USD

16.12

15.66

16.53

17.37

16.17

15.43

16.36

PEN.

54.47

52.23

54.63

57.69

53.56

52.00

53.84

15.00

49.65

15.42

15.03

15.26

15.35

52.51

50.88

50.91

52.24

USD

15.65

16.64

17.28

16.21

15.17

16.67

15.24

15.24

15.18

15.34

15.37

15.10

PEN.

52.51

55.01

57.35

53.77

51.02

54.84

50.29

51.80

51.54

51.37

52.24

50.12

USD

16.80

17.31

17.78

17.70

16.57

17.71

17.85

16.11

15.94

15.67

15.83

15.45

PEN.

56.63

57.43

58.76

58.41

54.88

USD

14.80

15.42

15.98

15.13

14.15

58.48

15.08

PEN.

49.33

51.35

52.85

50.10

47.47

50.31

58.80

15.07

49.73

53.32

53.64

52.48

52.81

51.32

13.91

13.93

13.77

14.63

14.43

47.21

46.62

46.09

49.61

48.17

USD

15.72

16.36

16.93

16.31

15.05

16.09

16.67

14.98

14.81

14.47

15.23

PEN.

52.73

54.09

56.21

54.09

50.60

52.92

55.01

50.91

50.28

48.46

51.75

14.86

49.33

Open

Close

High

Low

Average

Exchange Rate

3.38

3.34

3.31

3.32

3.31

3.37

3.29

3.31

3.41

3.39

3.34

3.40

3.36

3.31

3.32

3.32

3.36

3.29

3.30

3.40

3.40

3.35

3.40

3.32

3.37

3.32

3.31

3.30

3.31

3.30

3.29

3.31

3.37

3.35

3.34

3.32

3.33

3.33

3.31

3.31

3.36

3.34

3.30

3.39

3.35

3.35

3.39

3.34

3.36

3.31

3.32

3.32

3.36

3.29

3.30

3.40

3.40

3.35

3.40

3.32

Month

January

February

March

April

May

June

July

August

September

October

November

December

Month

January

February

March

April

May

June

July

August

September

October

November

December

106

Month

January

February

March

April

May

June

July

August

September

October

November

December

Open

Close

High

Low

Average

55.30

53.75

54.50

57.00

49.00

49.00

54.94

52.18

47.30

48.40

51.10

51.00

52.60

54.00

56.15

53.00

49.00

53.70

51.00

50.70

52.00

51.10

51.00

47.77

55.30

54.15

57.00

57.05

49.00

55.00

55.80

52.18

52.00

51.10

51.10

51.00

50.75

52.60

54.50

53.00

49.00

49.00

51.00

49.00

47.30

45.30

49.50

47.77

53.40

53.54

55.87

56.47

49.00

54.53

54.91

50.85

48.07

48.89

50.65

49.82

Buenaventura Investment Share (PEN)

Month

January

February

March

April

May

June

July

August

September

October

November

December

Open

Close

High

Low

Average

17.00

16.80

17.00

16.80

16.80

16.80

16.60

16.00

16.81

16.80

16.60

16.00

16.81

16.80

16.60

16.00

16.80

16.80

16.60

16.00

16.88

16.80

16.81

16.80

16.60

16.00

16.00

107

2019AnnualReport 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
a. ADRs

The ADR program on the New York Stock Exchange (NYSE) reached a trade volume 
of USD 4,606,152,048 in 2019 (295,266,641 ADSs).

As of December 31, 2019, the number of outstanding ADSs totaled 212,545,083, 
representing 77.32% of the Company’s total outstanding shares.

Lima, January 2020

b. Corporate Affairs

As of December 31, 2019, we had 989 common shareholders. Of these, 22.44% correspond to 
shareholders domiciled in Peru, and 77.56% to non-domiciled shareholders.

We also had 886 shareholders with investment shares. 

Lima, January 2020

108

109

2019AnnualReportFINANCIAL 
STATEMENTS

110

111

2019AnnualReportParedes, Burga & Asociados

Sociedad Civil de Responsabilidad Limitada

Independent Auditors’ Opinion

To the Board of Directors and Shareholders of Compañía de Minas Buenaventura S.A.A.

We have audited the attached consolidated financial statements of Compañía de Minas 
Buenaventura S.A.A. (a Peruvian publicly traded corporation) and Subsidiaries (hereinafter, “the 
Group”) which comprise the consolidated balance sheet as at December 31, 2019 and 2018, and the 
corresponding consolidated statements of income, comprehensive income, changes in equity, and 
cash flows for the years ended December 31, 2019, 2018, and 2017, and the summary of significant 
accounting policies and other explanatory notes. 

Paredes, Burga & Asociados
Sociedad Civil de Responsabilidad Limitada

Management’s liability for the consolidated financial statements 

Independent Auditors’ Opinion
The Management is responsible for the reasonable preparation and presentation of these consolidated 
financial statements in accordance with the International Financial Reporting Standards issued by the 
International Accounting Standards Board (IASB) and all internal controls deemed necessary by the 
Management to permit the preparation of consolidated financial statements free of material mistakes, 
To the Board of Directors and Shareholders of Compañía de Minas Buenaventura S.A.A.
whether due to fraud or error. 
We have audited the attached consolidated financial statements of Compañía de Minas 
Auditor’s liability 
Buenaventura S.A.A. (a Peruvian publicly traded corporation) and Subsidiaries (hereinafter, “the 
Group”) which comprise the consolidated balance sheet as at December 31, 2019 and 2018, and the 
corresponding consolidated statements of income, comprehensive income, changes in equity, and 
Our responsibility is to express an opinion on these consolidated financial statements based on our 
cash flows for the years ended December 31, 2019, 2018, and 2017, and the summary of significant 
audit. Our audit was performed in accordance with International Standards on Auditing approved for 
accounting policies and other explanatory notes. 
application in Peru by the Governing Board of the Peruvian Public Accountants’ Association. Such 
Management’s liability for the consolidated financial statements 
standards require us to comply with ethical requirements, and to plan and conduct the audit to achieve 
reasonable certainty that the consolidated financial statements are free of material mistakes. 
The Management is responsible for the reasonable preparation and presentation of these consolidated 
An audit comprises the application of procedures to obtain auditing evidence for the amounts and 
financial statements in accordance with the International Financial Reporting Standards issued by the 
information disclosed in the consolidated financial statements. The procedures selected depend on the 
International Accounting Standards Board (IASB) and all internal controls deemed necessary by the 
professional judgment of the auditor, including the assessment of risks of material mistakes in the 
Management to permit the preparation of consolidated financial statements free of material mistakes, 
whether due to fraud or error. 
consolidated financial statements, whether due to fraud or error. When performing this risk assess-
ment, the auditor takes into account the relevant internal controls of the Group for the reasonable 
Auditor’s liability 
preparation and presentation of the consolidated financial statements, in order to design audit proce-
dures in accordance with the circumstances, but not with the purpose of expressing an opinion regard-
Our responsibility is to express an opinion on these consolidated financial statements based on our 
ing the effectiveness of the Group’s internal controls. An audit also includes an evaluation of whether 
audit. Our audit was performed in accordance with International Standards on Auditing approved for 
application in Peru by the Governing Board of the Peruvian Public Accountants’ Association. Such 
or not the accounting principles applied are appropriate, and if the accounting estimates performed by 
standards require us to comply with ethical requirements, and to plan and conduct the audit to achieve 
the Management are reasonable, as well as an evaluation of the general presentation of the consoli-
reasonable certainty that the consolidated financial statements are free of material mistakes. 
dated financial statements. 
An audit comprises the application of procedures to obtain auditing evidence for the amounts and 
information disclosed in the consolidated financial statements. The procedures selected depend on the 
professional judgment of the auditor, including the assessment of risks of material mistakes in the 
consolidated financial statements, whether due to fraud or error. When performing this risk assess-
ment, the auditor takes into account the relevant internal controls of the Group for the reasonable 
preparation and presentation of the consolidated financial statements, in order to design audit proce-
dures in accordance with the circumstances, but not with the purpose of expressing an opinion regard-
ing the effectiveness of the Group’s internal controls. An audit also includes an evaluation of whether 
or not the accounting principles applied are appropriate, and if the accounting estimates performed by 
the Management are reasonable, as well as an evaluation of the general presentation of the consoli-
dated financial statements. 

Independent Auditors’ Opinion (continued) 

We believe that the audit evidence we have obtained is sufficient and appropriate to provide us with 
a basis for our audit opinion. 

Opinion

In our opinion, the attached consolidated financial statements reasonably present, in all material 
aspects, the financial situation of Compañía de Minas Buenaventura S.A.A. and Subsidiaries as at 
December 31, 2019 and 2018, as well as its financial performance and its consolidated cash flows 
for the years ended December 31, 2019, 2018, and 2017, in accordance with the International 
Financial Reporting Standards issued by the International Accounting Standards Board (IASB).

Lima, Peru
February 20, 2020

Countersigned by:  

Katherine Villanueva 
Certified Public Accountants’ Association of Callao Reg. No. 36892

Registered in Filing Card 11396556 of the Registry of Companies in and for Lima and Callao A 
member of Ernst & Young Global

112

Registered in Filing Card 11396556 of the Registry of Companies in and for Lima and Callao A 

member of Ernst & Young Global

113

2019AnnualReport 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
Compañía de Minas Buenaventura S.A.A. and Subsidiaries 

Compañía de Minas Buenaventura S.A.A. and Subsidiaries

Consolidated Balance Sheet as of December 31, 2019 and 2018

Consolidated Balance Sheet for the Years Ended December 31, 2019, 2018,
and 2017

Assets
Current assets
Cash and cash equivalents
Trade and misc. accounts receivable, net
Inventory, net
Income tax credit
Expenditures paid in advance
Derivative financial instruments 

Non-current assets
Trade and misc. accounts receivable, net
Inventory, net
Income tax credit
Investments in related businesses and joint ventures
Mining concessions, development costs, use rights,
property, plant, and equipment, net
Investments properties, net
Deferred income tax assets, net
Expenditures paid in advance
Other assets, net

Total assets

Liabilities and net equity
Current liabilities
Bank loans
Trade and misc. accounts payable
Provisions, contingent, liabilities and other liabilities
Current income tax liabilities
Financial obligations

Non-current liabilities
Trade and misc. accounts payable
Provisions, contingent, liabilities and other liabilities
Financial obligations
Financial liabilities for contingent considerations
Deferred income tax liabilities, net

Total liabilities

Net equity
Capital stock
Investment stock
Additional capital
Legal reserves
Other reserves
Cumulative profit (loss)
Other equity reserves
Net share attributable to shareholders of the controlling entity
Share of non-controlling shareholders
Total net equity

2019
USD(000)

2018
USD(000)

210,046
287,712
97,973
31,919
20,969
−
648,619

88,515
394
−
1,488,247

1,754,372
204
74,556
25,692
26,675
3’458,655
4’107,274

55,000
166,244
72,771
5,650
265,692
565,357

616
221,736
305,996
16,410
28,959
573,717
1’139,074

750,497
791
218,450
163,168
269
1’639,658
(1,311)
2’771,522
196,678
2’968,200

369,200
211,715
135,919
24,396
17,145
2,759
761,134

40,593
3,812
319
1,473,382

1,847,615
222
38,305
26,578
25,261
3,456,087
4,217,221

95,000
188,084
68,172
1,760
46,166
399,182

639
199,762
540,896
15,755
31,422
788,474
1’187,656

750,497
791
218,450
163,115
269
1’675,909
(703)
2’808,328
221,237
3’029,565

Total net liabilities and equity

4’107,274

4’217,221

Continued operations
Operating income:
Net goods sold
Services sold
Income from royalties
Total operating income

Operating costs
Cost of goods sold, not incl. depreciation
and amortization
Cost of services sold, not incl. depreciation
and amortization
Depreciation and amortization
Exploration in operating units
Mining royalties
Total operating costs

Net earnings

Operating expenses, net
Administrative expenses
Sales expenses
Exploration in non-operating areas
Recovery (loss) from long-term asset
impairment
Reversal (provision) for contingencies and others
Write-off of clearing cost component 
Others, net
Total operating expenses

Operating earnings (loss)

Other income (expenses), net
Net share in results of related businesses
and joint ventures
Financial income
Financial costs
Net earnings (loss) due to exchange rate difference
Total other income (expenses), net

Earnings (loss) for continued operations

Current income tax
Deferred income tax

Earnings (loss) for continued operations

Discontinued operations
Net loss due to discontinued operations attributable to
controlling entity

Net earnings (loss)

Attributable to:
Shareholders of the controlling entity
Non-controlling interests 

2019
USD(000)

2018
USD(000)

2017
USD(000)

821,930
23,661
22,297
867,888

1’106,329
24,001
20,385
1’150,715

1’187,206
29,697
20,739
1’237,642

(512,874)

(613,381)

(604,650)

(3,378)
(226,335)
(44,163)
(12,832)
(799, 582)

68,306

(76,297)
(24,313)
(11,879)

(2,083)
2,968

(14,715)
(126,319)

(58,013)

7,710
9,675
(42,173)
(734)
14, 478

(43,535 )

(11,911)
37,501

(17,945)

(10,514)

(28,459)

(12,208)
(16,251)

(28,459)

(4,318)
(238,879)
(89,730)
(21,388)
(967,696)

183,019

(77,099)
(26,948)
(36,307)

11,248
−
(1,308)
(124,721)

58,298

(1,144)
9,685
(38,422)
(1,384)
(31,265)

27,033

(16,882)
(9,997)

154

(11,808)

(11,654)

(13,445)
1,791

(11,654)

(12,954)
(210,154)
(89,311)
(30,884)
(947,953)

289,689

(80,666)
(23,043)
(18,262)

(21,620)
(13,740)
(13,573)
(13,230)
(184,134)

105,555

13,207
5,517
(34,551)
2,939
(12,888)

92,667

(23,713)
5,825

74,779

(10,344)

64,435

60,823
3,612

64,435

0.24

0.28

114

115

Net earnings (loss) per basic and diluted share attributable to 
shareholders of the controlling entity, expressed in US dollars

Earnings (loss) from continued operations, per basic and 
diluted share attributable to the shareholders of the 
controlling entity, expressed in US dollars

(0.05)

(0.05)

(

0.01)

(0.02)

2019AnnualReportCompañía de Minas Buenaventura S.A.A. and Subsidiaries

Consolidated Cash Flow Statement for the Years Ended December 31, 2019, 2018, and 2017

Operating activities
Collection of sales
Collection of tax refunds requested 
for sales tax and other taxes
Collection of dividends
Collection of royalties
Collection of interest
Collection from insurance
Payments to suppliers and third parties 
Payments to employees
Payments due to tax litigation
Payment of interest
Payment of income tax 
Payment of royalties

2019
USD(000)

2018
USD(000)

2017
USD(000)

783,000

1’216,294

1‘197,523

45,712
33,388
23,001
4,265

(610,737)
(137,300)
(36,322)
(28,266)
(24,935)
(4,741)

106,656
46,792
20,013
2,383
38,793
(861,282)
(151,602)
−
(27,699)
(30,898)
(13,190)

102,548
9,823
21,565
3,169
−
(872,467)
(160,891)
−
(30,402)
(38,121)
(20,165)

Net cash and cash equivalents from operating activities

47,065

346,26 0

212,582

Investment activities

Income from sale of mining concessions, development costs,
and property, plant, and equipment to third parties
Acquisition of mining concessions, development costs, and 
property, plant, and equipment
Payments for acquisition of other assets
Income from collection of loan to related company
Net cash and cash equivalents used in
 investment activities
Financing activities
Increase in bank loans 
Payment of bank loans 
Increase in financial obligations 
Payment of financial obligations
Payments on short-term lease 
Payment of dividends to controlling shareholders 
Payment of dividends to non-controlling shareholders 
Decrease (increase) in restricted bank accounts 
Payment for purchase of shares from non-controlling shareholders 
Net cash and cash equivalents from (used in)
financing activities
Increase (decrease) in cash and cash equivalents during the year
Cash and cash equivalents at the start of the year

Cash and cash equivalents at the end of the year

Financing and investment activities that
 do not affect cash flows:

Changes in mine closure estimates 
Accounts receivable for sale of fixed asset 
Fair value of contingent liability 

726

2,240

1,962

(102,627)
(3,700)

(111,270)
(8,529)
−

(259,507)
(5,405)
124,800

(105,601)

(117,559)

(138,150)

55,000
(95,000)
161,894
(186,152)
(7,596)
(22,098)
(6,500)
(166)
−

(100,618)
(159,154)
369,200

210,046

95,000
(95,000)
−
(45,222)
−
(22,860)
(5,560)
(410)
−

(74,052)
154,649
214,551

369,200

341,215
(300,000)
80,000
(32,599)
−
(22,099)
(6,036)
(285)
(621)

59,575
134,007
80,544

214,551

26,722
21,648
(655)

42,874
2,715
1,815

10,594
5,371
1,773

116

117
117

2019AnnualReportMANAGEMENT 
TEAM

118

119

2019AnnualReportManagement

Management

Victor Gobitz C.

General Manager

since  Jan. 2, 2017

Renzo Macher C.

Projects Manager - Projects

Raúl Benavides G.

Vice President of Business
Development

since Jul. 1, 1997

Andrés Osorio A.

Projects Manager - Operations

since Jun. 1, 2019 

Leandro García R.

Vice President of Finance and Admin.

since Dec. 1, 2017

Julio Meza Paredes

Geology Manager

Juan Carlos Ortiz Zevallos

Vice President of Operations

since May 1, 2018 

Juan Carlos Salazar C.

Explorations Manager 

Alejandro Hermoza M.

Vice President of Sustainability

since Sep. 2, 2008

Carlos Rodríguez Vigo

Environmental Manager

Oswaldo Cabrera R.

Juan Buhytron Q.

Information Technology and
Communications Manager

from Jun. 30, 2019 to 
departure 

Director of Operational
ITC Applications

in charge of ITC Management 
since Jul. 1, 2019

Diego Angulo de Avilés

Planning Manager

Tomas Chaparro D.

Safety Manager

Pedro Torres T.

Accounting Manager

Sandro Arce Valdivia

Asset Manager

from Aug. 31, 2019 to 
departure

Luz Campodónico A.

Internal Audit Manager 

Ricardo Huancaya Delgado

Technical Operations Mgr. - 
Underground

from Jul. 1, 2018 to Apr. 30, 
2019 – change to San Gabriel

Daniel Domínguez V.

Logistics Manager

Alex Lobo Guillén

Technical Operations Mgr. - Open Pit

José Malca La Fuente

Human Resources Manager

Marco Oyanguren L.

Operations Manager

until Mar. 31, 2019 - Transfer 
to Brocal 

Gulnara La Rosa R.

Legal Manager

Edgar Córdova M.

Manager of Social Affairs and
Mining Property

Percy Ponce B.

Metallurgical Plants and Research 
Manager

Benjamin Valer C.

Project Manager  - San Gabriel

until May 20, 2019 - Transfer 
to Molle Verde

Ignacio Agramunt B.

Innovation Manager

Ricardo Huancaya Delgado

Project Manager - San Gabriel

since May 1, 2019

Ernesto Ladron de Guevara H.

Compliance Manager

since Apr. 8, 2019

120

121

2019AnnualReportLima

Lima

Hector Alzamora B.

Director of Processes

from Dec. 1, 2017 to Mar. 4 
2019 - Transfer to Brocal

Jorge Falla Cordero

Director of Permits and Obligations 

Juan Ayala L.

Director of Processes

since Apr. 1, 2019

Luis Fernandez De Paredes Robles Director of Regional Explorations 

Julio Avalos C.

Maintenance Planning Director

from Mar. 1, 2018 to Mar. 31, 
2019 - Transfer to Brocal

Alfredo Gallardo Rios

Reg. Director of Environmental Mgmt. 

Kellyn Cristobal P.

Planning Director

since Dec. 1, 2019

Rolando Ligarda C.

Director of Regional Explorations  

Augusto Bejarano Vásquez

Tax Accounting Director 

Rosemarie Boltan Atoche

Reg. Director of Environmental Mgmt. 

Fernando Mayor Najera

Director of Compliance and Research 
Auditing 

Neil Mendoza Hoyos

Director of Asset Management 
Reliability

Juan Buhytron Q.

Director of Operational ICT Applications

Freddy Meza Padilla

Director of Project Development 

Guillermo Chang Chag

Director of Financial and Process 
Auditing 

Carlos Claux Mora

Director of Social Responsibility and 
Development 

Fernando Ortiz De Zevallos Malaga Director of Business Development 

Alberto Peña Alburqueque

Director of Modeling and Resources 

Juan Collao Guanilo

Marketing Director Andrés 

Cecilia Puga Buse

Director of the Treasury

Andrés Condori Benavides

Director of Geology 

Ana María Rivera Calderón

Director of Social Management 

Pedro  Navarro B.

Director of Safety

Guillermo Shoof A.

Legal Director

Fredy Oscategui S.

Director of Safety

since Aug. 1, 2017 

Raúl Ponce de León

Director of Service Procurement
and Contract Manager

from Jan. 1, 2018 to Sep. 30, 
2019 - departure

Julio Velasquez Miñan

Director of Safety

Miguel Diaz Romero

Director of Financial Accounting 

122

123

2019AnnualReportLima

Uchucchacua

Rossi Marie Montalvo S.

Director of Service Procurement and 
Contract Manager

since Oct. 1, 2019

Andrés Osorio Anaya

Unit Manager 

until May 31, 2019 - Transfer 
to LIMA

Juan Martin Chávez L.

Director of Material and Asset 
Procurement

José Luis Alcalá

Unit Manager 

since Jun. 1, 2019

Rafael Guillen Llerena

Director of Logistics

Juan Ayala López

Plant Supervisor

until Mar. 31, 2019 - Transfer 
to LIMA

Harry Silva Nichos

Director of Project Control

since Nov. 8, 2017 

Waldir Guillermo C.

Plant Supervisor

since May 1, 2019 

José Trujillo Salcedo

Director of Regional Explorations 

José Luis Aquino Aquino

Geology Supervisor

until Dec. 31, 2019 - Transfer 
to LIMA

Pablo Valladares Hernandez

Regional Director of Environmental 
Management

Juan Carlos Oré Mego

Mine Supervisor

until Apr. 10, 2019 - departure 

Percy Montoya V.

Director of Environmental Projects

since Oct. 1, 2019 

Heider Montoya E.

Mine Supervisor

since May 1, 2019 

Dante García Suclla

Director of Metallurgical Projects

since Jan. 1, 2019

Christian Aragón Díaz

Maintenance Supervisor

until Mar. 22, 2019 - departure

Juan Carlos Vargas Byrne

Director of Labor Relations and 
Personnel Management

Martin Rodriguez S.

Maintenance and Engineering 
Supervisor

since Apr. 1, 2019 

Silvia Vicente León

Director of ITC Communications Systems 

Javier Raya Quispe

Planning Supervisor

until Feb. 1, 2019 - departure

Manuel Villalobos Berrocal

Director of Administrative Control - 
Mining Units

José Villlobos Tamindzija

Director of Information Security and ITC 
Risks

from Feb. 1, 2018 to Aug. 31, 
2019 - departure

Juan Pablo Zoeger La Hoz

Director of Human Resources 
Management and Development

Julio Velasquez Miñan

Director of Safety

Miguel Diaz Romero

Director of Financial Accounting

124

125

2019AnnualReportUchucchacua

Orcopampa

Orlando Olarte R

Planning Supervisor

since Nov. 1, 2019

Gilmar Valenzuela Salazar

Production Manager

Fabricio Huerta Luza

Project Supervisor

Edwin Mendoza Begazo

Geology Supervisor

César Carrasco Loayza

Environmental Management Supervisor

Heider Montoya Espinoza

Mine Supervisor

from Jan. 1, 2017 to Apr. 30, 
2019 - Transf to UCH

Marco Negrón Tunjar

Safety Supervisor

until Jul. 7, 2019 - Transfer to 
Brocal

Jimmy Gabriel Espinoza

Environmental Management Supervisor 

Hector Quispe Chahua

Safety Supervisor

since Jul. 1, 2019

Walter Rondinelli Zaga

Social Affairs Supervisor

César Augusto Rondinelli Zaga

Social Affairs Supervisor

Pedro Vizcardo Martínez

Administrative Supervisor 

Carlos Matías M.

Administrative Supervisor

until Jul. 31, 2019
- Transfer to Brocal

Percy Quea Díaz

Human Resources Supervisor

Hector Quispe Ramos

Administrative Supervisor

since Aug. 1, 2019

Enrique Romero Graus

Human Resources Supervisor 

Julcani

Julio Delgado Z.

Unit Accountant

José Luis Alcala Valencia

Unit Manager

until May 31, 2019 - Transf to 
UCH

Jaime Jimenez Tuse

General Unit Supervisor

since Aug. 1, 2019 

Mallay

Carlos Montes Moya

Geology Supervisor

Rolando Quispe V.

Head of Community Relations

since Oct. 1, 2015

Yackson Enrique Figueroa Cruz

Plant Supervisor

126

127

2019AnnualReportJulcani

Tambomayo

Jaime Jimenez Tuse

Mine Supervisor

until Jul. 31, 2019 –promotion

Edgar Roque Ortiz

Unit Manager

Mirko Martinez N.

Mine Supervisor

since Sep. 1, 2019

William Agurto Anton

Maintenance Supervisor

Ivan Carhuaz Castro

Social Affairs Supervisor

Edgard Atencia Daga

Mine Supervisor

Henry Arcos Romucho

Environmental Management Supervisor

until Feb. 10, 2019 - Transf to 
CMC

Roger Ccahuana Figueroa

Geology Supervisor 

Alfredo Angulo S.

Environmental Management Supervisor

since Feb. 1, 2019

Kellyn Cristobal Paredes

Planning and Engineering Supervisor

until Nov. 30, 2019 - Transf to 
LIMA

Hector Quispe Chahua

Safety Supervisor

from Jan.  8, 2019 to Jun. 30, 
2019 - Transf to UCH

Fernando Dueñas Aliaga

Safety Supervisor

Rendel Apolo F.

Safety Supervisor

since Jul. 8, 2019

Percy Quea Díaz

Human Resources Supervisor

Jackson Arriola C.

Planning and Project Supervisor 

since Sep. 1, 2019

José Luis Quijahuaman Yana

Plant Supervisor

until Sep. 30, 2019 - departure 

Rommer Mendoza Ramírez

Head of Human Resources

Liseth León Castro

Head of Environmental Management

until Aug. 31, 2019 - departure 

Carlos Huamaní T.

Head of Environmental Management

since Oct. 1, 2019 

Segundo Salazar Silva

Social Affairs Supervisor

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2019AnnualReportSan Gabriel

Cia. Minera Coimolache

Alicia Sotelo R.

Project Supervisor

since Apr. 15, 2019 

Gary Samuel Chircca Ayesta

Unit Manager

since Jul. 1, 2017

Roxana Salas Z.

Head of Community Relations

until Jun. 30, 2019 – dep.

Percy Zamora Díaz

Geology Supervisor

Reynaldo Zambraro R.

Local Social Affairs Coordinator

Manuel Aranda Villar

Mine Supervisor

Yanina Aroni C.

Local Social Affairs Coordinator

César Esquivel Saavedra

Administrative Supervisor 

Luis Falcón López

Explorations Geologist

since Sep. 1, 2019 

Segundo Velasquez Miranda

Plant Supervisor

Julio Ugarte L.

Environmental Management Supervisor

since Sep. 1, 2019 

Victor Orihuela Vega

Human Resources Supervisor

Huber Usuriaga N.

Mine Head

since Apr. 1, 2019

Salvador Salazar Zegarra

Unit Accountant

since Sep. 1, 2018 to Sep. 30, 
2019 - Transf to BVN

Jackson Durand  L.

Safety Engineer

since Oct. 14, 2019

Edgardo Torres S.

Safety Engineer

Conenhua

Carlos Herrera B.

Technical Manager

La Zanja 

Kenny Regalado Vasquez

General Unit Supervisor

since Mar. 6, 2019

Pedro Limaco V.

Mario Borda C.

Superintendent of Operations and 
Maintenance

until Jan. 2, 2019 - departure 

Superintendent of Operations and 
Maintenance

since Mar. 1, 2019

Robinson Paredes Abanto

Plant Supervisor

David Giraldo Ch.

Operations Supervisor

Julio Ugarte Luna

Environmental Management Supervisor

until Aug. 31, 2019 - Transf to 
BVN

Fabio Mallqui A.

Superintendent of Engineering

Humberto Núñez Flores

Environmental Management Supervisor

since Dec. 2, 2019

Julio Montoya G.

Sales Manager

until Jan. 31, 2019 - departure 

William Pilco G.

Superintendent of Social and Env. 
Affairs 

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2019AnnualReportEl Molle Verde

Soc. Minera el Brocal

Edgar Paico Salazar

Head of Construction

until Oct. 31, 2019 - departure

Akira Takahashi A.

El Brocal Manager

until Mar. 17, 2019 - departure

Miguel Pérez Fernandez

Project Director

until Jul. 31, 2019 - departure 

Marco Oyanguren L.

Operations Manager

since Apr. 1, 2019 

Ruben Fernandez Soto

Project Supervisor

since May 20, 2019 

Rubén Rojas M.

Process Manager

until Mar. 8, 2019 - departure 

Francisco Veliz Mamami

Geology Supervisor

since May 1, 2019 

Hector Alzamora B.

Process Manager

since Mar. 5, 2019 

Edgardo Prado Arce

Social Affairs Supervisor

until Apr. 30, 2019 - departure

Juan Carlos Vásquez M.

Maintenance Manager

until Mar. 30, 2019 - departure 

Walter Rondinelli Z.

Social Affairs Supervisor

since Jun. 1, 2019

Julio Avalos C.

Maintenance Manager

from  Apr. 1, 2019 to Aug. 16, 
2019 - departure

Raúl Olivares J.

Optimization Projects Manager -
El Brocal

Daniel Roca F.

Mine Manager

Bruno Alvarez B.

Administrative Supervisor

until Jul. 31, 2019 - departure 

Carlos Matías M.

Administrative Supervisor

since Aug. 1, 2019

Rio Seco

Jaime Díaz Yosa

Unit Manager

José Luis Lama Manayay

Supervisor of Research and 
Development 

Vidal Mamani Machuca

Plant Operations Supervisor

from Mar. 21, 2018 to Mar. 15, 
2019 - departure

Giovani Loayza Montenegro

Plant Operations Supervisor

since 11/03/2019

Sandra Medina Vega

Safety Supervisor 

Martin Rodriguez Serveleon

General Maintenance Supervisor 

until Mar. 31, 2019
- Transf to BVN

Felipe Gonzales Bernal

General Maintenance Supervisor 

since  May 23, 2019

Alvaro Castillo Sánchez

Head of Administration

Richard Villagaray Surca

Head of Plant Processes

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2019AnnualReportSoc. Minera el Brocal

Soc. Minera el Brocal

Hugo Araoz Z.

Environmental Supervisor

Delbi Molina G.

Plant Processes Supervisor

until May 31, 2019 - departure

Wilder Cabrera T.

Project Supervisor

Ivan Monteagudo G.

Gen. Development and Explorations 
Supervisor

Michela Corimanya D.

Project Control Supervisor 

Armando Muñoz S.

Social Affairs Supervisor

Angel Francia M.

Human Resources Supervisor

since Jan. 16, 2019 

Marco Negrón T.

Safety Supervisor

since Jul. 8, 2019 

Dante Gavidia C.

Planning and Engineering Supervisor

Jorge Pinazo B.

Superintendent of Engineering

until Jun. 30, 2019 - departure

Juan Hoyos O.

General SA Supervisor - San Gregorio 
Project

Diego Quiñones T.

Maintenance Planning Supervisor

until Apr. 19, 2019 - departure

Luis Lévano C.

Surface Mining Ops. Supervisor

until Jul. 11, 2019 - departure 

Michael Rivera M.

Plant Processes Supervisor

until Dec. 31, 2019 - departure

Marco Calderón M.

Surface Mining Ops. Supervisor

since Aug. 1, 2019

Kely Santos P.

Technical Processes Supervisor

since May 7, 2019 

Carlos Camacho D.

Underground Mining Ops. Supervisor

Ivan Turco A.

Electrical and Instrument Maint. 
Supervisor

Guillermo Macedo Ch.

Operating Services Supervisor

until Mar. 31, 2019 - departure

José Antonio Unda H.

Mine Maintenance Supervisor

until Dec. 31, 2019 - departure

Moises Mascco C.

Plant Maintenance Supervisor

Marco Villalobos O.

Maintenance Planning Supervisor

since May 16, 2019

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2019AnnualReportBACKGROUND OF
BOARD MEMBERS 
AND MANAGEMENT

136

Roque Benavides - Chairman of the Board
Mr. Benavides graduated with a degree in civil engineering from the Pontificia 
Universidad Católica del Perú (PUCP). He holds a Master of Business Administration from 
the Henley Business School at the University of Reading in the U.K. He completed the 
Management Development Program at the Harvard Business School and the Advanced 
Management Programme at Oxford University. He has worked at Buenaventura for 40 
years as a Project Engineer, CFO, and CEO until 2017. He sits on the board of nine related 
companies, as well as the Banco de Crédito del Perú and UNACEM. He was previously 
president of the Peruvian Confederation of Private Business Institutions (CONFIEP) for 
two separate terms, the last of which concluded in 2019. He was also previously the 
president of the Peruvian Society of Mining, Petroleum, and Energy (SNMPE).

Felipe Ortiz de Zevallos - Director
Mr. Ortiz de Zevallos graduated with a degree in industrial engineering from the UNI, and 
holds a MSc in Business Administration from the University of Rochester. He is a graduate 
of the OPM Program at Harvard Business School. In addition to a range of professional, 
academic, and business activities, he is the founder and president of the APOYO Group, 
created in 1977. He was previously rector of Universidad del Pacífico (2004-2006) and 
Peruvian Ambassador to the United States from September 2006 to March 2009.

José Miguel Morales - Director
Attorney at law graduated from the Pontificia Universidad Católica del Perú (PUCP). Mr. 
Morales completed the Sloan Program at the Stanford University School of Business. He 
has been a senior attorney at the Company since 1970, and served as general counsel 
from 1993 to 2010. He has been a Senior Partner at the Estudio Aurelio García Sayán 
law firm since 2007, and has worked for the firm since 1965. He sits on the board of five 
related companies and several other companies not engaged in mining activities. He was 
previously the president of the Institute of Mining and Oil Law, the Peruvian Society of 
Mining, Energy, and Petroleum (SNMPE) and the CONFIEP. He is currently president of 
the Entrepreneurs for Education Association.

Germán Suárez - Director
Economist graduated from the UNMSM with a Master’s Degree in Economics from 
Columbia University. Mr. Suárez was previously Chairman of the Board of the 
Peruvian Central Reserve Bank from April 1992 to September 2001, where he has 
spent most of his professional career since 1964. He was president of Banco de la 
Nación (1990-1992) as well as holding various positions in the Ministry of Economy 
and Finance (1981-1985) and the International Monetary Fund (1978-1980). He sits on 
the board of several companies, and is a governor to the IMF and IADB. He chaired 
the G-24 for IMF and World Bank affairs.

William Champion - Director
Mr. Champion holds a Bachelor’s Degree in Chemical Engineering and Biology from the 
University of Arizona. He has been a board member since January 2016. He is also a 
director of Gladiator Mining Group LLC, a private mining investment company based 
in the United States. He has over 40 years of executive, management, and operating 
experience in the mining sector. He worked at Rio Tinto PLC from 2002 to 2014 in 
different positions and was managing director of Río Tinto Coal Australia; managing 
director of Río Tinto Diamonds; and chairman and CEO of Kennecott Utah Copper. He 
also worked for Phelps Dodge Mining Company from 1984 to 1995, where he held a 
number of positions (President of Phelps Dodge Chile).

Diego de la Torre - Director
Mr. De la Torre holds a Bachelor’s Degree in Business Administration from the 
Universidad del Pacífico in Lima and an MBA from the London Business School in 
England. He is the cofounder and Chairman of the Board of La Viga and Quikrete Perú. 
He is also a member of the advisory council of the David Rockefeller Center for Latin 
American Studies at Harvard University, and writes a column on the economy for the 
newspaper El Comercio. He was a professor at the Universidad del Pacífico for twelve 
years, and has been a board member at many important companies and institutions, 
including Endeavor Perú, IPAE, and Perú 2021. Since 2005, he has been the President of 
the United Nations Global Compact Network in Peru. In 2013, he received the “Complete 
Businessperson” award from the Latin American Business Council (CEAL). Additionally, 
in 2015, he was selected as one of the Top 100 Leaders by AACSB International. He has 
been a board member of Buenaventura since 2017.

Nicole Bernex - Director
Ms. Bernex has been a board member at BVN since January 2018. She holds a PhD in 
Geography (1975) and a Master’s Degree in Geography (1971) from Université Paul Valéry in 
Montpellier, France. She has been a professor in the Humanities Department of the Pontificia 
Universidad Católica del Perú (PUCP) since 1984, and was the Academic Director of the 
Center for Research in Applied Geography at the same university from 1984 to 2018. She has 
been the Chairwoman of the Board of the Instituto Científico del Agua since 2018, president 
of the Lima Geographic Society since July 2016, and is a board member of 2030 Water 
Resource Group Peru. She was a member of the Global Technical Committee (2014-2017) of 
the Global Water Partnership and is president emerita of Global Water Partnership Perú. 
Vice president of the National Academy of Sciences. She was also previously the director 
for Latin America and the Caribbean of the Scientific Committee of the United Nations 
Convention to Combat Desertification; the coordinator of a number of research programs; 
and a consultant to different international agencies (PAS-WB, UNDP, FAO, and others). She 
has over 150 publications to her name.

138

139

2019AnnualReportVíctor Gobitz - General Manager
CEO  and General Manager of Buenaventura since January 2017. Mr. Gobitz has also 
been a board member of Sociedad Minera El Brocal S.A.A. and Sociedad Minera Cerro 
Verde since that same year. Previously, he was CEO of Compañía Minera Milpo (now Nexa 
Resources Peru) from 2013 to 2016; General Manager and Director at Río Alto Mining 
(now Panamerican Silver); General Manager and Director at Castrovirreyna Compañía 
Minera; Operations Manager at Sociedad Minera El Brocal S.A.A.; and Assistant General 
Manager and Director at Volcan Compañía Minera. He has over 25 years of experience 
in operations and mining projects management. He graduated from the PUCP (1986) 
and obtained his MBA from ESAN Business School (1998) as well as pursuing specialized 
studies at the University of Pennsylvania’s Wharton School (2005) and the Kellogg School 
of Management (2015).
He is currently the director of GERENS Business School and a professor at the Pontificia 
Universidad Católica del Perú (PUCP).

Leandro García - Vice President of Finance and Administration
Mr. García holds a Bachelor’s Degree in Business Administration from the Universidad 
del Pacífico, a Bachelor’s Degree in Accounting from the same university, and Master 
of Business Administration from the University of Miami in Florida. He completed the 
Advanced Management Program at Harvard Business School in 2017. He worked at 
Buenaventura from 1990 to 1997, where he held the position of Head of Treasury. He 
also worked at Sociedad Minera El Brocal S.A.A. as Finance Manager  until 2000. He was 
General Manager of Boticas BTL until 2005, and General Manager of Boticas Inkafarma 
until June 2011. He rejoined Buenaventura as Controller General in July 2011 and became 
Vice President of Finance and Administration in December 2017. He sat on the board 
of Química Suiza Retail, the business that manages the MiFarma pharmacy chain, from 
January 2016 to January 2018. He is the general manager of Consorcio Energético de 
Huancavelica and a director of Sociedad Minera El Brocal S.A.A., Compañía Minera 
Condesa, and Empresa de Generación Huanza.

Juan Carlos Ortiz - Vice President of Operations
Mr. Ortiz graduated with a degree in mining engineering from the Pontificia Universidad 
Católica del Perú in 1992, and holds a Master’s Degree in Engineering from Pennsylvania 
State University in the United States, with a focus on mining engineering management. 
Before joining Buenaventura, he was Chief Technical Officer at Volcan Compañía Minera, 

a polymetallic mining company and one of the largest zinc, lead, and silver producers 
in the world. He was also previously Chief Operating Officer at Compañía Minera Milpo 
(now part of Nexa Resources Group), where he was in charge of the operations at Cerro 
Lindo, Atacocha, and El Porvenir. Over the course of his career, he has held different 
operations and project management positions throughout Latin America. Currently, he is 
the director of the Peruvian Institute of Mining Engineers.

Raúl Benavides - Vice President of Business Development
Mr. Benavides graduated with a Bachelor’s Degree in Mining Engineering from the 
University of Missouri at Rolla. He holds a Master’s Degree in Mining Administration 
from Pennsylvania State University and completed the Advanced Management Program 
at Harvard Business School (AMP-160). He has served as president of the Peruvian 
Institute of Mining Engineers (IIMP) as well as being the founder and president of the 
Mining Safety Institute (ISEM).  He is currently the President of the vocational mining 
school CETEMIN. He has worked at Buenaventura since 1980, and is a director of eleven 
related companies.

Alejandro Hermoza - Vice President of Sustainability
Mr. Hermoza graduated with a degree in mechanical engineering from the University of 
Maryland, and holds a Master’s Degree in Engineering from the same university, as well 
as a Master’s in Business Administration from the Universidad de Ciencias Aplicadas 
(UPC). He previously worked as Development Manager of the Peruvian Confederation 
of Private Business Institutions (CONFIEP) and has worked at Buenaventura since 2003, 
where he has held the position of Community Relations Manager from 2008 to 2011and 
Deputy Manager of Administration and Human Resources from 2003 to 2008; and Vice 
President of Sustainability from 2008 to date. He has been an alternate member of the 
Executive Committee at Yanacocha since 2014. In 2011, he graduated from the Advanced 
Management Program (AMP) at Harvard Business School.

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