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 2Q22 results for production and volume sold.

1. 2022 outlook projections shown above are considered forward-looking statements and represent management’s good faith estimates or expectations of future production results as of July 2022.

2Q22 Comments

Tambomayo:

• 2Q22 gold, lead and zinc production exceeded expectations due to an increase in grade and metallurgical recovery. 2022 guidance has subsequently been updated.
• 2Q22 silver production was in line with expectations for the quarter. 2022 guidance remains unchanged.

Orcopampa:

• 2Q22 gold production exceeded expectations due to an increase of treated ore and higher gold grades. 2022 guidance has been updated.

Coimolache:

• Production remained stable during the quarter with higher than expected gold production due to positive reconciliation of grades from the Mirador Norte open pit along with improved leaching permeability. 2022 guidance has been updated.

La Zanja:

• Partial recovery of mining rate at the Pampa Verde open pit subsequent to Peru’s January through April rainy season. Inflationary pressure has accelerated Buenaventura’s decision to put the mine under care and maintenance by 4Q22 in anticipation of oxides being largely depleted between October and December 2022. Buenaventura will then continue to focus on Cu-Au sulfide exploration within La Zanja’s operational footprint. Any residual gold ounces remaining within the open pit will be recovered once La Zanja’s Cu_Au project is confirmed. 2022 guidance remains unchanged.

Julcani:

• 2Q22 silver production was in line with expectations. 2022 guidance remains unchanged.

Uchucchacua:

• Exploration continues at the Uchucchacua mine according to plan with a focus on tunnels and diamond drilling during 2Q22. Underground crews are simultaneously in the process of being assembled in order to resume mine development during 3Q22, targeting production restart by 2H23.
• Yumpag project continued according to plan with progress related to construction and permitting during the second quarter. Production is targeted to begin during the 2H23. Exploration continued as planned at the Camila and Tomasa orebodies with positive results which likely will increase reserves and resources by the end of 2022.

El Brocal:

• Stable production at the underground mine at a rate of 8,000 tpd. 2Q22 copper production was in line with expectations. 2022 guidance remains unchanged.
• Tajo Norte’s silver, zinc and lead production was below expectations during the quarter due to a change in the mine plan. 2022 guidance was updated.
• Rehabilitation work began in late June within the upper area of the open pit which required stabilization subsequent to the March 2022 landslide.
• Polymetallic ore derived from the open pit’s low-grade stockpiles was processed during 2Q22. This will continue during 3Q22 while rehabilitation works progresses at the open pit.

2Q22 Payable Volume Sold

Appendix

Company Description

Compañía de Minas Buenaventura S.A.A. is Peru’s largest, publicly traded precious and base metals Company and a major holder of mining rights in Peru. The Company is engaged in the exploration, mining development, processing and trade of gold, silver and other base metals via wholly-owned mines and through its participation in joint venture projects. Buenaventura currently operates several mines in Peru (Orcopampa*, Uchucchacua*, Julcani*, Tambomayo*, La Zanja*, El Brocal and Coimolache).

The Company owns 19.58% of Sociedad Minera Cerro Verde, an important Peruvian copper producer (a partnership with Freeport-McMorRan Inc. and Sumitomo Corporation).

For a printed version of the Company’s 2021 Form 20-F, please contact the persons indicated above, or download a PDF format file from the Company’s web site.

(*) 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 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 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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