Compañia de Minas Buenaventura S.A.A. ("Buenaventura" or "the Company") (NYSE: BVN; Lima Stock Exchange: BUE.LM), Peru's largest publicly-traded precious metals mining company, today announced preliminary 4Q17 production and volume sold results as well as 2018 operating guidance (100% basis).
4Q17 Production per Metal and 2018 Operating Guidance (100% basis)

4Q17 (Actual)

12M17 (Actual)

2017 (Last Guidance)

2018 (Estimated)
Gold (Oz.)                    
Orcopampa       50,056   190,976   190k - 200k   190k - 210k
Tambomayo       27,605   64,175   60k - 90k   110k - 130k
La Zanja       30,648   127,118   115k - 125k   70k - 80k
Tantahuatay       45,164   151,454   145k - 155k   160k - 180k
Yanacocha       134,291   534,691   530k - 560k   470k - 545k
Silver (Oz.)                    
Uchucchacua 1       4,129,464   16,583,698   17.0M - 18.0M   17.2M - 18.6M
Julcani       292,358   2,249,527   2.6M - 2.8M   2.1M - 2.4M
Mallay       192,004   1,109,382   1.0M - 1.3M   0.4M - 0.5M
Tambomayo       814,012   1,788,219   1.6M - 1.9M   3.0M - 3.5M
El Brocal       1,047,414   4,084,249   3.5M - 4.5M   4.2M - 4.8M
Zinc (MT)                    
El Brocal       10,785   51,511   50k - 60k   43k - 50k
Uchucchacua 1       4,318   13,040   10k - 12k   16.6k - 18.3k
Mallay       1,281   7,102   7.0k - 9.0k   3.0k - 3.6k
Tambomayo       2,086   2,906   2k - 5k   7k - 8k
Copper (MT)                    
El Brocal       12,103   45,097   50K - 60K   61K - 71K

1.   Production from 4Q17 considers 150,203 Ag Oz and 263 Zn MT from Uchucchacua´s material treated in Mallay´s processing plant.

Volume Sold
4Q17 Volume sold per Metal (100% basis)
4Q17 (Actual)   12M17 (Actual)
Gold (Oz.)            
Orcopampa       55,812   195,278
Tambomayo       31,491   63,130
La Zanja       30,285   128,623
Tantahuatay       47,580   151,797
Silver (Oz.)            
Uchucchacua       3,747,035   15,583,553
Julcani       330,359   2,466,846
Mallay       211,609   993,040
Tambomayo       884,088   1,621,611
El Brocal       846,928   3,253,899
Zinc (MT)            
El Brocal       9,285   43,120
Uchucchacua       3,692   10,281
Mallay       1,153   5,926
Tambomayo       1,906   2,398
Copper (MT)            
El Brocal       11,566   42,633

Company Description

Compañía de Minas Buenaventura S.A.A. is Peru's largest, publicly traded, precious metals company and a major holder of mining rights in Peru. The Company is engaged in the mining, processing, development and exploration of gold and silver and other metals via wholly owned mines as well as through its participation in joint exploration projects.

Buenaventura currently operates several mines in Peru (Orcopampa*, Uchucchacua*, Mallay*, Julcani*, Tambomayo*, El Brocal, La Zanja and Coimolache and is developing the San Gabriel project.

The Company owns 43.65% of Minera Yanacocha S.R.L. (a partnership with Newmont Mining Corporation), an important precious metal producer; 19.58% of Sociedad Minera Cerro Verde, an important Peruvian copper producer.

For a printed version of the Company's 2016 Form 20-F, please contact the investor relations contacts on page 1 of this report, or download the PDF format file from the Company's web site at

(*) Operations wholly owned by Buenaventura

Note on Forward-Looking Statements

This press release may contain forward-looking information (as defined in the U.S. Private Securities Litigation Reform Act of 1995) that involve risks and uncertainties, including those concerning the Company's, Yanacocha's and Cerro Verde's costs and expenses, results of exploration, the continued improving efficiency of operations, prevailing market prices of gold, silver, copper and other metals mined, the success of joint ventures, estimates of future explorations, development and production, subsidiaries' plans for capital expenditures, estimates of reserves and Peruvian political, economic, social and legal developments. These forward-looking statements reflect the Company's view with respect to the Company's, Yanacocha's and Cerro Verde's future financial performance. Actual results could differ materially from those projected in the forward-looking statements as a result of a variety of factors discussed elsewhere in this Press Release.

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