UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN ISSUER
PURSUANT TO RULE 13a-16 OR 15b-16 OF
THE SECURITIES EXCHANGE ACT OF 1934

For the month of October 2017

Commission File Number 001-14370

COMPANIA DE MINAS BUENAVENTURA S.A.A.

(Exact name of registrant as specified in its charter)

BUENAVENTURA MINING COMPANY INC.
(Translation of registrant's name into English)

Republic of Peru
(Jurisdiction of incorporation or organization)

CARLOS VILLARAN 790
SANTA CATALINA, LIMA 13, PERU
(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F ____X___ Form 40-F _______

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): [ ]

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): [ ]

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes _______ No ___X____

If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): Not applicable.

Buenaventura Announces Third Quarter
and Nine-Month 2017 Results

Lima, Peru, October 27, 2017 – 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 results for the third quarter (3Q17) and nine-month (9M17) period ended September 30, 2017. All figures have been prepared in accordance with IFRS (International Financial Reporting Standards) on a non-GAAP basis and are stated in U.S. dollars (US$).

Third Quarter 2017 Highlights:

●	3Q17 EBITDA from direct operations was US$118.4 million; a 41% increase compared to US$83.7 million reported in 3Q16. 3Q17 Adjusted EBITDA (including associated companies) reached US$ 180.7 million; a 34% increase compared to US$ 135.0 million in 3Q16.
●	Total attributable production in 3Q17 was 177k gold ounces and 6.9 million silver ounces; 12% and 11% higher than in 3Q16, respectively.
●	Tambomayo has been performing well since ramp up completion in August. 4Q17 will be Tambomayo's first quarter operating at full capacity.
●	El Brocal reported US$31.4 million EBITDA in 3Q17 and an accumulated EBITDA of US$91.0 million in the last 12 months.
●	Buenaventura's de-bottlenecking program is in progress, results are expected to be gradually reflected during 2018 – 2019.
●	Yanacocha's Quecher Main project has been approved. First production is expected in early 2019 and extends the Yanacocha operation's LOM to 2027.
●	As a result of the Peruvian Supreme Court Ruling regarding the Royalty dispute, Cerro Verde recorded pre-tax charges of US$376.6 million in 3Q17 for prior assessments and for potential royalty and related assessments for the December 2006-2013 period. More details are provided within on Page #8.
●	Due to Cerro Verde´s non-recurrent expense, Buenaventura´s adjusted EBITDA was reduced by US$44.3 million, Net Income decreased by US$73.7 million and EPS decreased by 0.29.
●	Buenaventura´s Net debt/EBITDA ratio reduced to 1.5x.
●	A dividend payment of US$0.03 per share/ADS was approved by Buenaventura's board.

	Financial Highlights (in millions of US$, except EPS figures):

	3Q17	3Q16	Var%	9M17	9M16	Var%
Total Revenues	368.8	269.0	37%	903.7	781.7	16%
Operating Profit	57.4	34.7	65%	100.3	107.4	-7%
EBITDA Direct Operations	118.4	83.7	41%	255.6	253.1	1%
Adjusted EBITDA (Inc Associates)	180.7	135.0	34%	469.0	468.6	0%
Net Income	-12.0	-24.7	-51%	52.5	82.4	-36%
EPS*	-0.05	-0.10	-51%	0.21	0.32	-36%

(*) as of September 30, 2017 Buenaventura had a weighted average number of shares outstanding of 253,715,190.

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 2 of 25

Operating Revenues

3Q17 net sales were US$363.3 million; a 38% increase compared to US$263.1 million reported in 3Q16. This result was primarily due to higher volumes sold of gold (27% increase QoQ), silver (44% increase QoQ) and lead (41% increase QoQ) as well as to higher prices of lead (26% increase QoQ), zinc (27% increase QoQ) and copper (37% increase QoQ), but lower gold prices (4% decrease QoQ).

Royalty income decreased 8%; from US$5.9 million in 3Q16 to US$5.5 million in 3Q17 due to a 7% decrease in revenues at Yanacocha.

Operating Highlights	3Q17	3Q16	Var%	9M17	9M16	Var%
Net Sales (in millions of US$)	363.3	263.1	38%	888.2	763.2	16%
Average Realized Gold Price (US$/oz) ^{(1) (2)}	1,286	1,334	-4%	1,265	1,275	-1%
Average Realized Gold Price (US$/oz) inc. Affiliates ⁽³⁾	1,282	1,338	-4%	1,254	1,267	-1%
Average Realized Silver Price (US$/oz) ^{(1) (2)}	16.39	20.83	-21%	16.58	17.60	-6%
Average Realized Lead Price (US$/MT)^{(1) (2)}	2,458	1,950	26%	2,319	1,839	26%
Average Realized Zinc Price (US$/MT)^{(1) (2)}	3,115	2,460	27%	2,888	2,092	38%
Average Realized Copper Price (US$/MT)^{(1) (2)}	6,618	4,820	37%	6,045	4,666	30%

Volume Sold	3Q17	3Q16	Var%	9M17	9M16	Var%
Consolidated Gold Oz¹	120,475	94,539	27%	281,395	268,280	5%
Gold Oz inc Associated Companies ³	197,464	173,258	14%	500,522	520,176	-4%
Consolidated Silver Oz ¹	7,154,665	4,975,143	44%	18,545,059	15,924,538	16%
Consolidated Lead MT ¹	10,079	7,138	41%	29,199	21,374	37%
Consolidated Zinc MT ¹	14,798	15,040	-2%	45,688	42,866	7%
Consolidated Copper MT ¹	11,273	11,225	0%	31,152	32,895	-5%

(1)	Buenaventura's Direct Operations includes 100% of Buenaventura's operating units, 100% of La Zanja and 100% of El Brocal.

(2)	The realized price considers the adjustments of quotational periods.

(3)	Considers 100% of Buenaventura's operating units, 100% of La Zanja, 100% of El Brocal, 40.095% of Coimolache and 43.65% of Yanacocha.

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 3 of 25

Production and Operating Costs

In 3Q17, Buenaventura's consolidated gold production was 115,154 ounces; a 20% quarter on quarter increase as compared to 96,271 gold ounces in 3Q16. This increase is due to new production from Tambomayo which offset a decrease in production at La Zanja mine. Silver consolidated production increased by 15% during 3Q17 compared to 3Q16 primarily due to an additional 678,828 ounces in production coming from Tambomayo and increased production at El Brocal; 1,015,170 in 3Q17 vs. 468,806 in 3Q16. Lead consolidated production increased 36% compared to 3Q16 due to a 59% increase in production at the Uchucchacua and a 59% increase at the El Brocal mines.

Buenaventura´s 9M17 consolidated gold production increased 8% compared to 9M16. Silver consolidated production was 11% higher than 9M16, primarily due to an additional 974,207 ounces in production coming from Tambomayo and to a 3,036,835 ounce, or 106% increase, in production at El Brocal. Buenaventura´s consolidated lead production increased 33% in the 9M17 compared to 9M16. This total increase is due to a 43% increase production from the Uchuchacua and 81% increase in production from the El Brocal (81%) mines. Consolidated zinc production increased 10% in 9M17 compared to 9M16, primarily due to a 57% increase in production from Uchucchacua.

Equity Production	3Q17	3Q16	Var%	9M17	9M16	Var%
Gold Oz Direct Operations⁽¹⁾	97,198	92,571	5%	239,621	257,280	-7%
Gold Oz including Associated⁽²⁾ Companies	176,516	156,905	12%	457,013	468,222	-2%
Silver Oz Direct Operations⁽¹⁾	6,478,420	5,840,913	11%	18,693,908	17,575,037	6%
Silver Oz including Associated Companies	6,875,783	6,099,334	13%	19,807,104	18,290,013	8%
Lead MT	9,418	7,087	33%	26,915	21,135	27%
Zinc MT	13,203	13,175	0%	40,336	35,819	13%
Copper MT Direct Operations⁽¹⁾	7,124	7,608	-6%	20,400	20,978	-3%
Copper MT including Associated Companies	32,312	31,128	4%	91,957	93,361	-2%

Consolidated Production	3Q17	3Q16	Var%	9M17	9M16	Var%
Gold Oz⁽³⁾	115,154	96,271	20%	291,322	269,563	8%
Silver Oz⁽³⁾	6,902,597	5,980,514	15%	19,961,468	18,024,485	11%
Lead MT⁽³⁾	11,113	8,156	36%	32,915	24,676	33%
Zinc MT⁽³⁾	17,712	18,527	-4%	56,089	51,179	10%
Copper MT⁽³⁾	11,584	12,362	-6%	33,162	35,531	-7%

(1)	Buenaventura's Direct Operations includes 100% of Buenaventura's operating units, 53.06% of La Zanja and 61.32% of El Brocal.

(2)	Based on 100% of Buenaventura´s operating units, 53.06% of La Zanja, 61.32% of el Brocal, 40.095% of Coimolache and 43.65% of Yanacocha.

(3)	Based on 100% of Buenaventura's operating units, 100% of La Zanja and 100% of El Brocal.

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 4 of 25

Orcopampa (100% owned by Buenaventura)

Production
		3Q17			3Q16		Var %		9M17	9M16			Var %
Gold	Oz	51,672			53,167		-3%		140,920	145,129			-3%
Silver	Oz	160,465			179,210		-10%		423,706	492,810			-14%

Cost Applicable to Sales
			3Q17	3Q16		Var %		9M17			9M16	Var %
Gold	US$/Oz		699	660		6%		745			682	9%

Gold production at Orcopampa in 3Q17 was in line with 3Q16. Cost Applicable to Sales (CAS) in 3Q17 increased 6%, to 699 US$/Oz, compared to 660 US$/Oz in 3Q16, mainly due to an 8% QoQ decrease in ore grades and an 11% QoQ increase in volumes of ore treated.

Gold production guidance for 2017 is 190k – 200k ounces.

Uchucchacua (100% owned by Buenaventura)*

Production
		3Q17	3Q16	Var %	9M17	9M16	Var %
Silver	Oz	4,121,319	4,086,850	1%	12,454,235	12,170,024	2%
Zinc	MT	3,891	1,950	99%	8,722	5,566	57%
Lead	MT	4,421	2,772	59%	11,215	7,869	43%

Cost Applicable to Sales
		3Q17	3Q16	Var %	9M17	9M16	Var %
Silver	US$/Oz	11.00	11.06	-1%	10.89	10.84	0%

Silver production at Uchucchacua in 3Q17 was in line with 3Q16. 3Q17 Cost Applicable to Sales (CAS) of 11.00 US$/Oz was in line with 11.06 US$/Oz asreported in 3Q16 . Production from Cachipampa's fault is contributing with higher lead and zinc grades while maintaining current silver grade.

Silver production guidance for 2017 is 17.0 million – 18.0 million ounces.

*Includes a production of 139,336 Ag Oz, 170 Zn MT and 182 Pb MT from Uchucchacua´s material treated at Mallay´s processing plant.

Mallay (100% owned by Buenaventura)

Production
		3Q17	3Q16	Var %	9M17	9M16		Var %
Silver	Oz	216,637	412,526	-47%	917,378	1,252,490		-27%
Zinc	MT	1,403	2,740	-49%	5,821	8,137		-28%
Lead	MT	763	1,965	-61%	3,459	5,907		-41%

Cost Applicable to Sales
		3Q17	3Q16	Var %	9M17		9M16		Var %
Silver	US$/Oz	12.29	13.05	-6%	13.37		12.55		6%

Mallay silver, lead and zinc production decreased in 3Q17 in order to accommodate production of Uchucchacua´s ore (more value).

Silver production guidance for 2017 from Mallay´s mining operation is 1.0 million – 1.3 million

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 5 of 25

Julcani (100% owned by Buenaventura)

Production
			3Q17		3Q16	Var %	9M17		9M16	Var %
Silver	Oz		643,051		782,813	-18%	1,957,169		2,473,802	-21%

Cost Applicable to Sales
		3Q17		3Q16		Var %	9M17	9M16		Var %
Silver	US$/Oz	15.39		11.86		30%	15.04	11.32		33%

3Q17 silver production decreased 18% year on year, primarily due to a 13% QoQ decrease in ore treated and to lower ore grades (6% QoQ). 3Q17 Cost Applicable to Sales (CAS) of 15.39 US$/Oz was 30% higher than 11.86 US$/Oz in 3Q16, primarily explained by a 48%, or 5.3k, increase in meters drifted as compared to 3Q16. Additionally, the change in mining procedures to improve safety has affected the production and cost.

Silver production guidance for 2017 is 2.6 million – 2.8 million ounces.

La Zanja (53.06% owned by Buenaventura)

Production
		3Q17	3Q16	Var %	9M17	9M16	Var %
Gold	Oz	33,569	37,407	-10%	96,470	106,984	-10%
Silver	Oz	67,129	50,309	33%	197,938	159,012	24%

Cost Applicable to Sales
		3Q17	3Q16	Var %	9M17	9M16	Var %
Gold	US$/Oz	761	635	20%	762	566	34%

Gold production in 3Q17 decreased by 10% quarter on quarter, but remains in line with the mine production plan. 3Q17 Cost Applicable to Sales (CAS) was 761 US$/Oz), a 34% increase compared to 635 US$/Oz in 3Q16, mainly due to increased reagent consumption and lower ore grades.

Gold production guidance for 2017 is 115k – 125k ounces.

Coimolache (40.10% owned by Buenaventura)

Production
		3Q17	3Q16	Var %	9M17	9M16	Var %
Gold	Oz	43,320	39,595	9%	106,290	110,890	-4%
Silver	Oz	231,370	162,983	42%	537,587	587,551	-9%

Cost Applicable to Sales
		3Q17	3Q16	Var %	9M17	9M16	Var %
Gold	US$/Oz	485	527	-8%	500	476	5%

3Q17 gold production increased by 9% quarter on quarter. 3Q17 Cost Applicable to Sales (CAS) decreased by 8%, compared to 527 US$/Oz in 3Q16, mainly due to a 10% increase in volume sold. As announced, production coming from Cienaga Norte permitted higher production and cost reduction at Coimolache.

Gold production guidance for 2017 is 145k – 155k ounces.

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 6 of 25

El Brocal (61.32% owned by Buenaventura)

Production
		3Q17	3Q16	Var %	9M17	9M16	Var %
Copper	MT	11,531	12,291	-6%	32,994	35,312	-7%
Zinc	MT	11,658	13,836	-16%	40,727	37,477	9%
Silver	Oz	1,015,170	468,806	117%	3,036,835	1,476,348	106%

Cost Applicable to Sales
		3Q17	3Q16	Var %	9M17	9M16	Var %
Copper	US$/MT	5,201	4,785	9%	4,992	4,800	4%
Zinc	US$/MT	1,789	2,033	-12%	1,875	1,762	6%

3Q17 copper production decreased 6% compared to 3Q16 mainly due to lower ore grades. In 3Q17, zinc production decreased 16% compared to 3Q16 mainly due to less ore treated, despite higher ore grades.

In 3Q17, zinc Cost Applicable to Sales (CAS) decreased 12% quarter on quarter, mainly due to higher by-product contribution from lead and silver. Copper CAS in 3Q17 increased by 9% quarter on quarter due to an increase in meters drifted in order to prepare Marcapunta to mine 13K MTPD and to increased treatment charges due to the escalator triggered by an increase in copper prices.

Zinc production guidance for 2017 is 50k – 60k MT, while copper production guidance for 2017 is 50k – 60k MT.

General and Administrative Expenses

3Q17 General and Administrative expenses were US$20.2 million; 20% higher than $16.9 million in 3Q16, mainly explained by a non-recurrent incentive to reduce personnel related to executing planned synergies with El Brocal.

Exploration in Non-Operating Areas

3Q17 Exploration costs in Non-Operating Areas were US$4.4 million compared with US$6.4 million in 3Q16. During the period, Buenaventura primarily focused its exploration efforts on the Emperatriz area in La Zanja (US$0.84 million), the Marcapunta Norte (US$0.31 million), and San Gabriel projects (US$0.22 million).

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 7 of 25

Share in Associated Companies

During 3Q17, Buenaventura's share in associated companies was negative US$32.9 million, compared to negative US$11.9 million reported in 3Q16, comprised of:

Share in the Result of Associates (in millions of US$)	3Q17	3Q16	Var %	9M17	9M16	Var %
Cerro Verde	-30.5	9.5	N.A.	25.9	44.3	-41%
Coimolache	5.6	4.9	13%	13.6	17.0	-20%
Yanacocha	-8.0	-26.2	-70%	-30.6	-24.1	27%
Total	-32.9	-11.9	178%	8.9	37.2	-76%

YANACOCHA

At Yanacocha (43.65% owned by Buenaventura), 3Q17 gold production was 141,923 ounces (61,949 ounces of which were attributable to Buenaventura); a 4% decrease as compared to the 147,387 ounces (64,334 ounces attributable to Buenaventura) produced in 3Q16.

Gold production guidance at Yanacocha for 2017 is 530k – 560k ounces.

In 3Q17, Yanacocha reported a net loss of US$18.3 million, compared to a net loss of US$60.3 million reported in 3Q16.

CAS in 3Q17 was US$1,098/oz; a 6% increase as compared to the US$1,040/oz reported in 3Q16 mainly due to lower volume sold.

Capital expenditures at Yanacocha were US$10.9 million in 3Q17.

The Quecher Main project (oxide deposit) was approved in the third quarter 2017. First production is expected in early 2019 with commercial production in the fourth quarter of 2019. The Quecher Main project extends the life of the Yanacocha operation until 2027 with average annual gold production of 200,000 ounces per year between 2020 and 2025. Cost applicable to sales is expected to be between $750 and $850 per ounce and AISC between $900 and $1,000. CAPEX for the project has been reduced to between $250 and $300 million.

CERRO VERDE

At Cerro Verde (19.58% owned by Buenaventura), 3Q17 copper production was 128,644 MT; 25,189 MT of which is attributable to Buenaventura; a 7% increase compared to 120,124 in 3Q16 with 23,520 MT attributable to Buenaventura.

During 3Q17, Cerro Verde reported a net loss of US$155.8 million compared to net income of US$48.3 million in 3Q16. This decrease was primarily due to pre-tax charges of $376.6 million for prior assessments and potential royalty and related assessments for December 2006-2013, as a result of the Peruvian Supreme Court Ruling.

Capital expenditures at Cerro Verde were US$41.0 million in 3Q17.

Copper production guidance at Cerro Verde for 2017 is 500k MT – 550k MT.

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 8 of 25

Update of the Cerro Verde Royalty Dispute:

●	Cerro Verde began operation with copper oxides but later incorporated copper sulfides which were found within the same deposit.

●	Cerro Verde signed an initial Tax Stability Agreement (C.E.T, in Spanish) with the Peruvian Government for the 1998-2013 period.

o	Cerro Verde has contested royalty assessments by the Peruvian Tax Authority for periods beginning December 2006 on the basis that they were exempt under 1998 Stability Agreement.

o	In October 2017, the Peruvian Supreme Court issued a ruling on the 2008 assessments that was adverse to Cerro Verde's position.

o	As a result, Cerro Verde recorded pre-tax charges of US$ 376.6 M in 3Q for prior assessments and potential royalty and related assessments for December 2006-2013.

o	Cerro Verde paid US$ 135 M under protest through September 30, 2017.

o	Cerro Verde acted in good faith and is evaluating the best final legal alternative.

●	Cerro Verde signed another Stability Agreement (C.E.T.) which is currently in place (2014-2029).

o	The new 15-year Stability Agreement became effective on January 1, 2014. The company has been paying royalties thereunder.

●	This non-recurrent expense affected Cerro Verde´s:

o	EBITDA by US$ 226.1 million

o	Net Income by US$ 376.6 million

COIMOLACHE (Tantahuatay operation)

At Coimolache (40.10% owned by Buenaventura), 3Q17 attributable contribution to net income was US$5.6 million, as compared toUS$4.9 million in 3Q16.

De-bottlenecking program

Opportunity	Tambomayo	Orcopampa	Uchuchacua	El Brocal*
Differential Cut-off			
Ventilation				
Hoist System		
Back-fill System				
Drainage			
Mining Method			
Dilution Control		
Process Plant Tuning				
Integrated Mining Contract			

*At El Brocal thisis also considered the Esperanza Tunnel Connection and the 13K Copper Project

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 9 of 25

Other

During the October 27, 2017 Board meeting the Directors passed the following resolution:

● Declaration of cash dividend of US$ 0.03 per share or ADS. The record date is November 15, 2017 and it will be paid to shareholders on November 30, 2017.

***

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*, El Brocal, La Zanja and Coimolache and is developing the Tambomayo 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 www.buenaventura.com.

(*) 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.

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 10 of 25

**Tables to follow**

APPENDIX 1

Equity Participation in Subsidiaries and Associates (as of June 30, 2017)
	BVN	Operating
	Equity %	Mines / Business
El Molle Verde S.A.C*	100.00	Trapiche Project
Minera La Zanja S.A*	53.06	La Zanja
Sociedad Minera El Brocal S.A.A*	61.32	Colquijirca and Marcapunta
Compañía Minera Coimolache S.A **	40.10	Tantahuatay
Minera Yanacocha S.R.L **	43.65	Yanacocha
Sociedad Minera Cerro Verde S.A.A **	19.58	Cerro Verde
Processadora Industrial Rio Seco S.A*	100.00	Rio Seco chemical plant
Consorcio Energético de Huancavelica S.A*	100.00	Energy – Huanza Hydroelectrical plant
Buenaventura Ingenieros S.A*	100.00	Engineering Consultant

(*)Consolidates

(**) Equity Accounting

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 11 of 25

APPENDIX 2

Gold Production

Mining Unit	Operating Results	Unit	3Q17	3Q16	△%	9M17	9M16	△ %
Underground
Orcopampa	Ore Milled	DMT	135,217	121,714	11%	371,686	350,643	6%
	Ore Grade	Oz/MT	0.38	0.42	-8%	0.38	0.42	-9%
	Recovery Rate	%	97.29	96.98	0%	97.04	96.01	1%
	Ounces Produced*	Oz	51,672	53,167	-3%	140,920	145,129	-3%
Open Pit
La Zanja	Ounces Produced	Oz	33,569	37,407	-10%	96,470	106,984	-10%
Tantahuatay	Ounces Produced	Oz	43,320	39,595	9%	106,290	110,890	-4%

(*) Includes ounces from retreatment of tailing dams

Silver Production

Mining Unit	Operating Results	Unit	3Q17	3Q16	△%	9M17	9M16	△ %
Underground
Uchucchacua	Ore Milled	DMT	353,053	320,838	10%	1,039,166	943,460	10%
	Ore Grade	Oz/MT	14.52	15.15	-4%	14.58	15.37	-5%
	Recovery Rate	%	80.33	84.10	-4%	82.21	83.90	-2%
	Ounces Produced	Oz	4,121,319	4,086,850	1%	12,454,235	12,170,024	2%
Julcani	Ore Milled	DMT	37,197	42,647	-13%	114,125	131,425	-13%
	Ore Grade	Oz/MT	17.85	18.96	-6%	17.72	19.60	-10%
	Recovery Rate	%	96.84	96.80	0%	96.77	96.06	1%
	Ounces Produced	Oz	643,051	782,813	-18%	1,957,169	2,473,802	-21%
Mallay	Ore Milled	DMT	35,263	51,463	-31%	139,223	152,422	-9%
	Ore Grade	Oz/MT	6.75	8.39	-19%	7.28	8.77	-17%
	Recovery Rate	%	91.65	93.34	-2%	91.00	93.67	-3%
	Ounces Produced	Oz	216,637	412,526	-47%	917,378	1,252,490	-27%
Open Pit
Colquijirca	Ounces Produced	Oz	742,295	277,255	168%	2,310,524	937,547	146%

Zinc Production

Mining Unit	Operating Results	Unit	3Q17	3Q16	△%	9M17	9M16	△ %
Underground
Uchucchacua	Ore Milled	DMT	353,053	320,838	10%	1,039,166	943,460	10%
	Ore Grade	%	1.87	1.16	62%	1.61	1.15	40%
	Recovery Rate	%	58.08	52.45	11%	50.98	50.99	0%
	MT Produced	MT	3,891	1,950	99%	8,722	5,566	57%
Mallay	Ore Milled	DMT	35,263	51,463	-31%	139,223	152,422	-9%
	Ore Grade	Oz/MT	4.48	5.93	-24%	4.74	6.05	-22%
	Recovery Rate	%	84.89	88.46	-4%	85.46	87.89	-3%
	MT Produced	MT	1,403	2,740	-49%	5,821	8,137	-28%
Open Pit
Colquijirca	MT Produced	MT	11,658	13,836	-16%	40,727	37,477	9%

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 12 of 25

APPENDIX 3: EBITDA Reconciliation (in thousand US$)

EBITDA RECONCILIATION (in thousand US$)

	3Q17	3Q16	9M17	9M16
Net Income	-5,117	-28,366	65,394	81,355
Add / Substract:	123,469	112,016	190,226	171,722
Provision for income tax, net	18,041	31,129	27,074	37,625
Share in associated companies by the equity method, net	32,908	11,850	-8,901	-37,222
Provision for contingencies	1,512	331	13,328	129
Interest income	-2,178	-1,749	-4,651	-6,061
Interest expense	10,369	10,911	25,838	26,585
Loss on currency exchange difference	1,872	4,233	-2,343	-1,255
Long Term Compensation provision	187	336	183	926
Depreciation and Amortization	58,464	45,361	139,599	138,041
Workers´ participation provision	800	2,878	2,244	6,572
Impairment of long-term lived assets	0	0	0	0
Write-Down adjustment	0	0	0	0
Loss from discontinued operations	1,494	6,736	-2,145	6,382
EBITDA Buenaventura Direct Operations	118,352	83,650	255,620	253,077
EBITDA Yanacocha (43.65%)	-846	-2,817	-433	42,808
EBITDA Cerro Verde (19.58%)	49,523	41,603	181,620	136,151
EBITDA Coimolache (40.095%)	13,689	12,515	32,199	36,567
EBITDA Buenaventura + All Associates	180,719	134,951	469,006	468,604

Note:

EBITDA (Buenaventura Direct Operations) consists of earnings before net interest, taxes, depreciation and amortization, share in associated companies, net, loss on currency exchange difference, other, net, provision for workers' profit sharing and provision for long-term officers' compensation.

EBITDA (including associated companies) consists of EBITDA (Buenaventura Direct Operations), plus (1) Buenaventura's equity share of EBITDA (Yanacocha) (2) Buenaventura's equity share of EBITDA (Cerro Verde), plus (3) Buenaventura's equity share of EBITDA (Coimolache). All EBITDA mentioned were similarly calculated using financial information provided to Buenaventura by the associated companies.

Buenaventura presents EBITDA (Buenaventura Direct Operations) and EBITDA (including affiliates) to provide further information with respect to its operating performance and the operating performance of its equity investees, the affiliates. EBITDA (Buenaventura Direct Operations) and EBITDA (including affiliates) are not a measure of financial performance under IFRS, and may not be comparable to similarly titled measures of other companies. You should not consider EBITDA (Buenaventura Direct Operations) and EBITDA (including affiliates) as alternatives to operating income or net income determined in accordance with IFRS, as an indicator of Buenaventura's, affiliates operating performance, or as an alternative to cash flows from operating activities, determined in accordance with IFRS, as an indicator of cash flows or as a measure of liquidity.

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 13 of 25

APPENDIX 4: COST APPLICABLE TO SALES RECONCILIATION

Reconciliation of Costs Applicable to Sales and Cost Applicable to Sales per Unit Sold

Cost applicable to sales consists of cost of sales, excluding depreciation and amortization, plus selling expenses. Cost applicable to sales per unit sold for each mine consists of cost applicable to sales for a particular metal produced at a given mine divided by the volume of such metal produced at such mine in the specified period. We note that cost applicable to sales is not directly comparable to the cash operating cost figures disclosed in previously furnished earnings releases.

Cost applicable to sales and Cost applicable to sales per unit of mineral sold are not measures of financial performance under IFRS, and may not be comparable to similarly titled measures of other companies. We consider Cost applicable to sales and Cost applicable to sales per unit of mineral sold to be key measures in managing and evaluating our operating performance. These measures are widely reported in the precious metals industry as a benchmark for performance, but do not have standardized meanings. You should not consider Cost applicable to sales or Cost applicable to sales per unit of mineral sold as alternatives to cost of sales determined in accordance with IFRS, as indicators of our operating performance. Cost applicable to sales and Cost applicable to sales per unit of mineral sold are calculated without adjusting for by-product revenue amounts.

The tables below set forth (i) a reconciliation of consolidated Cost of sales, excluding depreciation and amortization to consolidated Cost applicable to sales, (ii) reconciliations of the components of Cost applicable to sales (by mine and mineral) to the corresponding consolidated line items set forth on our consolidated statements of profit or loss for the three and nine months ended September 30, 2015 and 2016, and (iii) reconciliations of Cost of sales, excluding depreciation and amortization to Cost applicable to sales for each of our mining units. The amounts set forth in Cost applicable to sales and Cost applicable to sales per unit sold for each mine and mineral indicated in the tables below can be reconciled to the amounts set forth on our consolidated statements of profit or loss for the three and nine months ended September 30, 2015 and 2016 by reference to the reconciliations of Cost of sales, excluding depreciation and amortization (by mine and mineral), Selling Expenses (by mine and metal) expenses and Exploration in units in operations (by mine and mineral) to consolidated Cost of sales, excluding depreciation and amortization, consolidated Selling Expenses and consolidated Exploration in units in operations expenses, respectively, set forth below.

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 14 of 25

Set forth below is a reconciliation of consolidated Cost of sales, excluding depreciation and amortization,
to consolidated Cost applicable to sales:

	For the 3 months ended September 30				For the 9 months ended September 30
	2017		2016		2017		2016
	(in thousands of US$)
Consolidated Cost of sales excluding depreciation and amortization		180,870		129,752		458,604		371,545
Add:
Consolidated Exploration in units in operation		27,591		24,985		68,793		66,206
Consolidated Commercial deductions		65,710		57,590		188,509		171,306
Consolidated Selling expenses		5,907		5,531		16,074		15,646
Consolidated Cost applicable to sales		280,078		217,858		731,980		624,703

Set forth below is a reconciliation of Cost of sales, excluding depreciation and amortization
(by mine and mineral) to consolidated Cost of sales:

	For the 3 months ended September 30				For the 9 months ended September 30
	2017		2016		2017		2016
Cost of sales by mine and mineral	(in thousands of US$)
Julcani, Gold		12		9		-3		15
Julcani, Silver		7,963		5,460		19,645		14,545
Julcani, Lead		1,039		464		2,157		1,345
Julcani, Copper		15		9		100		57
Mallay, Gold		24		103		218		454
Mallay, Silver		1,286		2,476		6,305		7,157
Mallay, Lead		719		1,120		3,529		3,620
Mallay, Zinc		1,675		1,883		6,541		5,289
Orcopampa, Gold		27,996		24,293		75,856		66,824
Orcopampa, Silver		986		1,136		3,196		3,173
Orcopampa, Copper		70		33		151		42
Uchucchacua, Gold		44		20		96		68
Uchucchacua, Silver		30,301		20,552		80,871		66,971
Uchucchacua, Lead		3,673		1,185		8,668		3,855
Uchucchacua, Zinc		4,138		990		7,893		2,946
Tambomayo, Gold		16,386		0		19,499		0
Tambomayo, Silver		5,299		0		6,029		0
Tambomayo, Lead		1,134		0		1,148		0
Tambomayo, Zinc		724		0		733		0
La Zanja, Gold		26,045		22,964		73,203		64,726
La Zanja, Silver		715		369		2,059		1,208
El Brocal, Gold		2,003		1,600		5,143		5,370
El Brocal, Silver		4,824		2,513		14,391		7,645
El Brocal, Lead		3,579		2,299		11,615		6,718
El Brocal, Zinc		10,731		12,747		34,103		30,718
El Brocal, Copper		25,525		24,852		65,367		70,449
Non Mining Units		3,962		2,675		10,090		8,351
Consolidated Cost of sales, excluding depreciation and amortization		180,870		129,752		458,604		371,545

Set forth below is a reconciliation of Exploration expenses in units in operation (by mine and mineral) to consolidated Exploration expenses in mining units:

	For the 3 months ended September 30				For the 9 months ended September 30
	2017		2016		2017		2016
Exploration expenses in units in operation by mine and mineral	(in thousands of US$)
Julcani, Gold		5		4		-1		7
Julcani, Silver		3,460		2,503		8,980		7,321
Julcani, Lead		452		213		986		677
Julcani, Copper		7		4		46		29
Mallay, Gold		5		33		67		157
Mallay, Silver		294		800		1,928		2,475
Mallay, Lead		165		362		1,079		1,252
Mallay, Zinc		384		609		2,000		1,829
Orcopampa, Gold		9,503		11,680		26,569		29,259
Orcopampa, Silver		335		546		1,119		1,389
Orcopampa, Copper		24		16		53		18
Uchucchacua, Gold		11		7		21		20
Uchucchacua, Silver		7,440		7,336		17,581		19,671
Uchucchacua, Lead		902		423		1,884		1,132
Uchucchacua, Zinc		1,016		353		1,716		865
Tambomayo, Gold		2,437		0		2,782		0
Tambomayo, Silver		788		0		860		0
Tambomayo, Lead		169		0		164		0
Tambomayo, Zinc		108		0		105		0
La Zanja, Gold		86		94		832		101
La Zanja, Silver		2		2		23		2
El Brocal, Gold		0		0		0		0
El Brocal, Silver		0		0		0		0
El Brocal, Lead		0		0		0		0
El Brocal, Zinc		0		0		0		0
El Brocal, Copper		0		0		0		0
Non Mining Units		0		0		0		0
Consolidated Exploration expenses in units in operation		27,591		24,985		68,793		66,206

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 15 of 25

Set forth below is a reconciliation of Commercial Deductions in units in operation (by mine and mineral)

to consolidated Commercial deductions:

	For the 3 months ended September 30				For the 9 months ended September 30
	2017		2016		2017		2016
Commercial Deductions in units in operation by mine and mineral	(in thousands of US$)
Julcani, Gold		1		2		-1		3
Julcani, Silver		1,174		1,022		3,090		3,892
Julcani, Lead		149		87		334		362
Julcani, Copper		3		1		18		20
Mallay, Gold		5		42		69		166
Mallay, Silver		327		1,319		1,896		3,578
Mallay, Lead		182		572		1,068		1,803
Mallay, Zinc		398		1,538		2,280		4,210
Orcopampa, Gold		313		183		680		331
Orcopampa, Silver		42		66		137		82
Orcopampa, Copper		14		8		28		9.02517
Uchucchacua, Gold		12		8		29		26.69616
Uchucchacua, Silver		10,001		8,686		27,471		28,325
Uchucchacua, Lead		1,164		491		2,862		1,620
Uchucchacua, Zinc		5,117		1,458		9,113		4,201
Tambomayo, Gold		73		0		75		0
Tambomayo, Silver		799		0		799		0
Tambomayo, Lead		284		0		284		0
Tambomayo, Zinc		399		0		399		0
La Zanja, Gold		85		16		200		181
La Zanja, Silver		2		4		4		12
El Brocal, Gold		2,497		1,939		6,954		6,541
El Brocal, Silver		3,239		1,974		10,953		6,094
El Brocal, Lead		1,600		1,097		6,732		3,418
El Brocal, Zinc		6,339		9,794		27,269		23,747
El Brocal, Copper		31,492		27,281		85,766		82,682
Non Mining Units		0		0		0		0
Consolidated Commercial deductions in units in operation		65,710		57,590		188,509		171,306

Set forth below is a reconciliation of Selling expenses (by mine and mineral) to consolidated
Selling expenses:

	For the 3 months ended September 30				For the 9 months ended September 30
	2017		2016		2017		2016
Selling expenses by mine and mineral	(in thousands of US$)
Julcani, Gold		0		0		0		1
Julcani, Silver		175		168		409		554
Julcani, Lead		23		14		45		51
Julcani, Copper		0		0		2		2
Mallay, Gold		1		8		11		33
Mallay, Silver		63		185		316		523
Mallay, Lead		35		84		177		265
Mallay, Zinc		82		141		328		387
Orcopampa, Gold		293		249		731		569
Orcopampa, Silver		10		12		31		27
Orcopampa, Copper		1		0		1		0
Uchucchacua, Gold		2		1		3		3
Uchucchacua, Silver		1,252		1,014		2,931		3,036
Uchucchacua, Lead		152		58		314		175
Uchucchacua, Zinc		171		49		286		134
Tambomayo, Gold		244		0		263		0
Tambomayo, Silver		79		0		81		0
Tambomayo, Lead		17		0		15		0
Tambomayo, Zinc		11		0		10		0
La Zanja, Gold		162		80		666		566
La Zanja, Silver		4		1		19		11
El Brocal, Gold		114		93		311		341
El Brocal, Silver		274		146		870		486
El Brocal, Lead		204		134		703		427
El Brocal, Zinc		610		742		2,063		1,952
El Brocal, Copper		1,452		1,447		3,954		4,476
Non Mining Units		476		904		1,533		1,629
Consolidated Selling expenses		5,907		5,531		16,074		15,646

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 16 of 25

	JULCAN
	3Q 2017													3Q 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)			TOTAL
Cost of Sales (without D&A) (US$000)		12		7,963		1,039		-		15		9,030			9		5,460		464		-		9			5,942
Add:
Exploration Expenses (US$000)		5		3,460		452		-		7		3,923			4		2,503		213		-		4			2,724
Commercial Deductions (US$000)		1		1,174		149		-		3		1,327			2		1,022		87		-		1			1,112
Selling Expenses (US$000)		0		174.62		22.79		-		0		198			0.29		168.16		14.28		-		0.27			183
Cost Applicable to Sales (US$000)		19		12,771		1,663		-		25		14,478			16		9,153		777		-		15			9,961
Divide:
Volume Sold		13		829,755		722		-		3	Not Applicable				21		771,898		726		-		5		Not Applicable
CAS		1,442		15.39		2,304		-		7,653	Not Applicable				776		11.86		1,070		-		2,751		Not Applicable

	MALLAY
	3Q 2017												3Q 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)			TOTAL
Cost of Sales (without D&A) (US$000)		24.03		1,286		719		1,675		-		3,704			103		2,476		1,120		1,883		-			5,582
Add:
Exploration Expenses (US$000)		5.50		294		165		384		-		848			33		800		362		609		-			1,804
Commercial Deductions (US$000)		5		327		182		398		-		912			42		1,319		572		1,538		-			3,471
Selling Expenses (US$000)		1.18		63		35		82		-		182			8		185		84		141		-			418
Cost Applicable to Sales (US$000)		36		1,970		1,101		2,539		-		5,646			186		4,781		2,138		4,171		-			11,275
Divide:
Volume Sold		1		160,298		600		1,132		-	Not Applicable				234		366,346		1,845		2,277		-		Not Applicable
CAS		30,453		12.29		1,837		2,243		-	Not Applicable				794		13.05		1,159		1,832		-	Not Applicable


	ORCOPAMPA
	3Q 2017												3Q 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)			TOTAL
Cost of Sales (without D&A) (US$000)		27,996		986		-		-		70		29,052			24,293		1,136		-		-		33			25,461
Add:										-
Exploration Expenses (US$000)		9,503		335		-		-		24		9,862			11,680		546		-		-		16			12,242
Commercial Deductions (US$000)		313		42		-		-		14		369			183		66		-		-		8			257
Selling Expenses (US$000)		293		10		-		-		1		304			249		12		-		-		0			261
Cost Applicable to Sales (US$000)		38,105		1,373		-		-		109		39,587			36,405		1,759		-		-		57			38,221
Divide:
Volume Sold		54,544		150,956		-		-		27	Not Applicable				55,191		182,484		-		-		21		Not Applicable
CAS		699		9.10		-		-		4,091	Not Applicable				660		9.64		-		-		-		Not Applicabl


	UCHUCCHACUA
	3Q 2017												3Q 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)			TOTAL
Cost of Sales (without D&A) (US$000)		44		30,301		3,673		4,138		-		38,156			20		20,552		1,185		990		-			22,747
Add:
Exploration Expenses (US$000)		11		7,440		902		1,016		-		9,369			7		7,336		423		353		-			8,119
Commercial Deductions (US$000)		12		10,001		1,164		5,117		-		16,294			8		8,686		491		1,458		-			10,644
Selling Expenses (US$000)		2		1,252		152		171		-		1,577			1		1,014		58		49		-			1,122
Cost Applicable to Sales (US$000)		68		48,995		5,890		10,442		-		65,395			36		37,588		2,157		2,850		-			42,632
Divide:
Volume Sold		55		4,452,812		3,584		3,291		-	Not Applicable				51		3,398,654		2,141		1,313		-		Not Applicable
CAS		1,243		11.00		1,644		3,173		-	No Applicable				714		11.06		1,008		2,171		-		No Applicable

	JULCANI
	9M 2017												9M 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL
Cost of Sales (without D&A) (US$000)		-3		19,645		2,157		-		100		21,900			15		14,545		1,345		-		57		15,963
Add:
Exploration Expenses (US$000)		-1		8,980		986		-		46		10,011			7		7,321		677		-		29		8,035
Commercial Deductions (US$000)		-1		3,090		334		-		18		3,441			3		3,892		362		-		20		4,277
Selling Expenses (US$000)		-0		409		45		-		2		456			1		554		51		-		2		608
Cost Applicable to Sales (US$000)		-5		32,125		3,522		-		166		35,808			26		26,313		2,436		-		108		28,883
Divide:
Volume Sold		21		2,136,488		1,604		-		28	Not Applicable				31		2,323,633		2,092		-		37	No Aplicable
CAS		-		15.04		2,195		-		5,928	No Applicable				828		11.32		1,165		-		2,939	No Applicable

	MALLAY
	9M 2017												9M 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL
Cost of Sales (without D&A) (US$000)		218		6,305		3,529		6,541		-		16,593			454		7,157		3,620		5,289		-		16,520
Add:
Exploration Expenses (US$000)		67		1,928		1,079		2,000		-		5,074			157		2,475		1,252		1,829		-		5,713
Commercial Deductions (US$000)		69		1,896		1,068		2,280		-		5,313			166		3,578		1,803		4,210		-		9,757
Selling Expenses (US$000)		11		316		177		328		-		831			33		523		265		387		-		1,208
Cost Applicable to Sales (US$000)		365		10,444		5,853		11,148		-		27,811			810		13,734		6,940		11,715		-		33,198
Divide:
Volume Sold		346		781,431		3,111		4,773		-	Not Applicable				933		1,094,056		5,415		6,802		-	Not Applicable
CAS		1,056		13.37		1,881		2,336		-	No Applicable				868		12.55		1,281		1,722		-	No Applicable

	ORCOPAMPA
	9M 2017												9M 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL
Cost of Sales (without D&A) (US$000)		75,856		3,196		-		-		151		79,202			66,824		3,173		-		-		42		70,039
Add:
Exploration Expenses (US$000)		26,569		1,119		-		-		53		27,741			29,259		1,389		-		-		18		30,666
Commercial Deductions (US$000)		680		137		-		-		28		845			331		82		-		-		9		423
Selling Expenses (US$000)		731		31		-		-		1		763			569		27		-		-		0		596
Cost Applicable to Sales (US$000)		103,835		4,483		-		-		233		108,551			96,983		4,671		-		-		70		101,724
Divide:
Volume Sold		139,466		443,660		-		-		57	Not Applicable				142,272		524,582		-		-		24	Not Applicable
CAS		745		10.11		-		-		4,059	No Applicable				682		8.90		-		-		2,885	No Applicable

	UCHUCCHACUA
	9M 2017												9M 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL
Cost of Sales (without D&A) (US$000)		96		80,871		8,668		7,893		-		97,528			68		66,971		3,855		2,946		-		73,839
Add:
Exploration Expenses (US$000)		21		17,581		1,884		1,716		-		21,202			20		19,671		1,132		865		-		21,689
Commercial Deductions (US$000)		29		27,471		2,862		9,113		-		39,475			27		28,325		1,620		4,201		-		34,174
Selling Expenses (US$000)		3		2,931		314		286		-		3,535			3		3,036		175		134		-		3,347
Cost Applicable to Sales (US$000)		149		128,855		13,728		19,008		-		161,740			118		118,003		6,782		8,146		-		133,049
Divide:
Volume Sold		133		11,836,518		8,762		6,589		-	Not Applicable				153		1 0,882,782		6,131		4,041		-	Not Applicable
CAS		1,119		10.89		1,567		2,885		-	No Applicable				771		10.84		1,106		2,016		-	No Applicable

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 17 of 25

	TAMBOMAYO
	3Q 2017												3Q 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL
Cost of Sales (without D&A) (US$000)		16,386		5,299		1,134		724		-		23,544
Add:
Exploration Expenses (US$000)		2,437		788		169		108		-		3,501
Commercial Deductions (US$000)		73		799		284		399		-		1,555
Selling Expenses (US$000)		244		79		17		11		-		350
Cost Applicable to Sales (US$000)		19,139		6,965		1,604		1,242		-		28,950
Divide:
Volume Sold		26,799		656,070		884		491		-	NotApplicable
CAS		714		10.62		1,814		2,529		-	No Applicable				-		-		-		-		-	No Applicable

	LA ZANJA
	3Q 2017												3Q 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL
Cost of Sales (without D&A) (US$000)		26,045		715		-		-		-		26,760			22,964		369		-		-		-		23,333
Add:
Exploration Expenses (US$000)		86		2		-		-		-		88			94		2		-		-		-		96
Commercial Deductions (US$000)		85		2		-		-		-		87			16		4		-		-		-		21
Selling Expenses (US$000)		162		4		-		-		-		166			80		1		-		-		-		81
Cost Applicable to Sales (US$000)		26,378		724		-		-		-		27,101			23,154		376		-		-		-		23,531
Divide:
Volume Sold		34,662		73,619		-		-		-	Not Applicable				36,472		40,097		-		-		-	Not Applicable
CAS		761		9.83		-		-		-	Not Applicable				635		9.38		-		-		-	Not Applicable

	BROCAL
	3Q 2017												3Q 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL
Cost of Sales (without D&A) (US$000)		2,003		4,824		3,579		10,731		25,525		46,662			1,600		2,513		2,299		12,747		24,852		44,012
Add:
Exploration Expenses (US$000)		-		-		-		-		-		-			-		-		-		-		-		-
Commercial Deductions (US$000)		2,497		3,239		1,600		6,339		31,492		45,166			1,939		1,974		1,097		9,794		27,281		42,085
Selling Expenses (US$000)		114		274		204		610		1,452		2,654			93		146		134		742		1,447		2,562
Cost Applicable to Sales (US$000)		4,614		8,337		5,382		17,681		58,469		94,482			3,632		4,634		3,530		23,283		53,580		88,659
Divide:
Volume Sold		4,401		831,154		4,290		9,884		11,243	Not Applicable				2,570		215,665		2,426		11,450		11,199	Not Applicable
CAS		1,048		10.03		1,255		1,789		5,201	Not Applicable				1,413		21.49		1,455		2,033		4,785	Not Applicable

	NON MINING COMPANIES
	3Q 2017												3Q 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL
Cost of Sales (without D&A) (US$000)		-		-		-		-		-		3,962			-		-		-		-		-		2,675
Add:												-													-
Selling Expenses (US$000)		-		-		-		-		-		476			-		-		-		-		-		904
Total (US$000)		-		-		-		-		-		4,438			-		-		-		-		-		3,579

	BUENAVENTURA CONSOLIDATED
	3Q 2017												3Q 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL
Cost of Sales (without D&A) (US$000)		72,509		51,375		10,144		17,269		25,611		180,870			48,989		32,507		5,067		15,620		24,894		129,752
Add:
Exploration Expenses (US$000)		12,047		12,319		1,687		1,507		31		27,591			11,819		11,187		997		962		20		24,985
Commercial Deductions (US$000)		2,986		15,583		3,379		12,253		31,509		65,710			2,190		13,072		2,248		12,790		27,291		57,590
Selling Expenses (US$000)		815		1,858		430		874		1,453		5,907			431		1,527		290		932		1,447		5,531
Cost Applicable to Sales (US$000)		88,357		81,135		15,640		31,904		58,604		280,078			63,429		58,292		8,603		30,304		53,651		217,858
Divide:
Volume Sold		120,475		7,154,665		10,079		14,798		11,273	Not Applicable				94,539		4,975,143		7,138		15,040		11,225	Not Applicable
CAS		733		11.34		1,552		2,156		5,199	Not Applicable				671		11.72		1,205		2,015		4,780	Not Applicable

	COIMOLACHE
	3Q 2017												3Q 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL
Cost of Sales (without D&A) (US$000)		16,409		1,106		-		-		-		17,515			16,681		1,085		-		-		-		17,766
Add:
Exploration Expenses (US$000)		3,375		227		-		-		-		3,602			2,932		191		-		-		-		3,123
Commercial Deductions (US$000)		153		11		-		-		-		163			114		7		-		-		-		122
Selling Expenses (US$000)		233		16		-		-		-		249			240		16		-		-		-		256
Cost Applicable to Sales (US$000)		20,170		1,359		-		-		-		21,529			19,967		1,299		-		-		-		21,267
Divide:
Volume Sold		41,621		212,808		-		-		-	Not Applicable				37,923		162,764		-		-		-	Not Applicable
CAS		485		6.39		-		-		-	Not Applicable				527		7.98		-		-		-	Not Applcable

	TAMBOMAYO
	9M 2017													9M 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL				GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL
Cost of Sales (without D&A) (US$000)		19,499		6,029		1,148		733		-			27,409
Add:
Exploration Expenses (US$000)		2,782		860		164		105		-			3,910
Commercial Deductions (US$000)		75		799		284		399		-			1,558
Selling Expenses (US$000)		263		81		15		10		-			370
Cost Applicable to Sales (US$000)		22,620		7,769		1,611		1,247		-			33,247
Divide:
Volume Sold		31,639		737,524		884		491		-		NotApplicable
CAS		715		10.53		1,822		2,539		-	N Applicable					-		-		-		-		-	Not Applicable

	LA ZANJA
	9M 2017												9M 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL
Cost of Sales (without D&A) (US$000)		73,203		2,059		-		-		-		75,263			64,726		1,208		-		-		-		65,934
Add:
Exploration Expenses (US$000)		832		23		-		-		-		855			101		2		-		-		-		103
Commercial Deductions (US$000)		200		4		-		-		-		204			181		12		-		-		-		193
Selling Expenses (US$000)		666		19		-		-		-		685			566		11		-		-		-		577
Cost Applicable to Sales (US$000)		74,901		2,105		-		-		-		77,007			65,574		1,233		-		-		-		66,807
Divide:
Volume Sold		98,338		202,468		-		-		-	Not Applicable				115,760		166,485		-		-		-	Not Applicable
CAS		762		10.40		-		-		-	No Applicable				566		7.41		-		-		-	Not Applicable

	BROCAL
	9M 2017												9M 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL
Cost of Sales (without D&A) (US$000)		5,143		14,391		11,615		34,103		65,367		130,619			5,370		7,645		6,718		30,718		70,449		120,899
Add:
Exploration Expenses (US$000)		-		-		-		-		-		-			-		-		-		-		-		-
Commercial Deductions (US$000)		6,954		10,953		6,732		27,269		85,766		137,674			6,541		6,094		3,418		23,747		82,682		122,482
Selling Expenses (US$000)		311		870		703		2,063		3,954		7,901			341		486		427		1,952		4,476		7,681
Cost Applicable to Sales (US$000)		12,408		26,215		19,050		63,435		155,086		276,194			12,252		14,224		10,563		56,417		157,607		251,062
Divide:
Volume Sold		11,452		2,406,971		14,837		33,835		31,066	Not Applicable				9,131		933,000		7,736		32,023		32,834	Not Applicable
CAS		1,084		10.89		1,284		1,875		4,992	No Applicable				1,342		15.25		1,365		1,762		4,800	Not Applicable

	NON MINING COMPANIES
	9M 2017												9M 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL
Cost of Sales (without D&A) (US$000)		-		-		-		-		-		10,090			-		-		-		-		-		8,351
Add:												-													-
Selling Expenses (US$000)		-		-		-		-		-		1,533			-		-		-		-		-		1,629
Total (US$000)		-		-		-		-		-		11,623			-		-		-		-		-		9,980

	BUENAVENTURA CONSOLIDATED
	9M 2017												9M 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL
Cost of Sales (without D&A) (US$000)		174,013		132,497		27,117		49,270		65,618		458,604			137,456		100,699		15,538		38,953		70,548		371,545
Add:
Exploration Expenses (US$000)		30,268		30,492		4,113		3,821		99		68,793			29,544		30,859		3,061		2,694		47		66,206
Commercial Deductions (US$000)		8,006		44,351		11,280		39,061		85,811		188,509			7,249		41,985		7,203		32,158		82,711		171,306
Selling Expenses (US$000)		1,986		4,657		1,254		2,686		3,958		16,074			1,513		4,636		917		2,472		4,478		15,646
Cost Applicable to Sales (US$000)		214,273		211,997		43,765		94,838		155,486		731,980			175,762		178,179		26,720		76,277		157,785		624,703
Divide:
Volume Sold		281,395		18,545,059		29,199		45,688		31,152	Not Applicable				268,280		1 5,924,538		21,374		42,866		32,895	Not Applicable
CAS		761		11.43		1,499		2,076		4,991	Not Applicable				655		11.19		1,250		1,779		4,797	Not Applicable

	COIMOLACHE
	9M 2017												9M 2016
	GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL			GOLD (OZ)		SILVER (OZ)		LEAD (MT)		ZINC (MT)		COPPER (MT)		TOTAL
Cost of Sales (without D&A) (US$000)		44,509		3,063		-		-		-		47,572			43,048		3,192		-		-		-		46,240
Add:
Exploration Expenses (US$000)		6,684		460		-		-		-		7,144			6,878		510		-		-		-		7,388
Commercial Deductions (US$000)		378		37		-		-		-		415			434		40		-		-		-		474
Selling Expenses (US$000)		560		39		-		-		-		599			753		56		-		-		-		809
Cost Applicable to Sales (US$000)		52,132		3,599		-		-		-		55,730			51,114		3,798		-		-		-		54,911
Divide:
Volume Sold		104,217		521,327		-		-		-	Not Applicable				107,327		592,768		-		-		-	Not Applicable
CAS		500		6.90		-		-		-	No Applicable				476		6.41		-		-		-	Not Applicable

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 18 of 25

APPENDIX 5: ALL-IN SUSTAINING COST

Buenaventura
All-in Sustaining Cost for 3Q17

	Buenaventura¹				La Zanja				Tantahuatay				Attributable ²
		3Q17				3Q17				3Q17				3Q17
Au Ounces Sold BVN				81,412
Au Ounces bought from La Zanja
Au Ounces Sold Net				81,412				34,662				41,621				116,492

		3Q17				3Q17				3Q17				3Q17
Income Statement & Cash Flow	US$ 000'		US$/Oz Au		US$ 000'		US$/Oz Au		US$ 000'		US$/Oz Au		US$ 000'		US$/Oz Au

Cost of Sales³		107,950		1,326		27,067		781		16,978		408		129,119		1,108
Exploration in Operating Units		27,503		338		88		3		4,140		99		29,210		251
Royalties		5,867		72				0				0		5,867		50
Comercial Deductions⁴		20,457		251		87		3		163		4		20,569		177
Selling Expenses		2,646		33		131		4		249		6		2,815		24
Administrative Expenses		12,608		155		602		17		1,019		24		13,336		114
Other, net		1,646		20		409		12		-183		-4		1,790		15
Sustaining Capex⁵		23,084		284		6,989		202		15,636		376		33,062		284

By-product Credit		-131,312		-1,613		-1,220		-35		-3,571		-86		-133,391		-1,145

All-in Sustaining Cost		70,449		865		34,153		985		34,431		827		102,376		879

*All-in Sustaining Cost does not include: Depreciation and Amortization, Stoppage of mining units, Exploration in non-operating areas.

Notes:
1. Non-consolidated financial statements for Compañia De Minas Buenaventura S.A.A.
2. Considers 100% from Compañia De Minas Buenaventura S.A.A., 53.06% from La Zanja and 40.095% from Tantahuatay.
3. For Buenaventura does not consider purchase of concentrate from La Zanja.
4. For all metals produced.
5. Sustaining Capex + Growth Capex equals Acquisitions of mining concessions, development costs, property, plant and equipment.

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 19 of 25

Buenaventura

All-in Sustaining Cost for 3Q16

	Buenaventura¹				La Zanja				Tantahuatay				Attributable ²
		3Q16				3Q16				3Q16				3Q16
Au Ounces Sold BVN				91,908
Au Ounces bought from La Zanja				-36,412
Au Ounces Sold Net				55,497				51,272				37,923				97,907

		3Q16				3Q16				3Q16				3Q16
Income Statement & Cash Flow	US$ 000'		US$/Oz Au		US$ 000'		US$/Oz Au		US$ 000'		US$/Oz Au		US$ 000'		US$/Oz Au

Cost of Sales³		67,151		1,210		23,180		452		17,766		468		86,573		884
Exploration in Operating Units		24,889		448		875		17		3,122		82		26,605		272
Royalties		6,143		111		0		0		0		0		6,143		63
Comercial Deductions⁴		15,484		279		803		16		122		3		15,959		163
Selling Expenses		2,045		37		236		5		256		7		2,273		23
Administrative Expenses⁵		12,653		228		615		12		746		20		13,279		136
Other Expenses		0		0		2,484		48		2,702		71		2,401		25
Other Incomes		-2,993		-54		-5,589		-109		-3,072		-81		-7,190		-73
Administrative charges		0		0		1,562		30		354		9		971		10
Sustaining Capex⁶		17,774		320		9,076		177		9,611		253		26,443		270

By-product Credit		-115,724		-2,085		-1,015		-20		-3,373		-89		-117,615		-1,201

All-in Sustaining Cost		27,422		494		32,227		629		28,234		745		55,842		570

*All-in Sustaining Cost does not include: Depreciation and Amortization, Stoppage of mining units, Exploration in non-operating areas.

Notes:
1. Non-consolidated financial statements for Compañia De Minas Buenaventura S.A.A.
2. Considers 100% from Compañia De Minas Buenaventura S.A.A., 53.06% from La Zanja and 40.095% from Tantahuatay.
3. For Buenaventura does not consider purchase of concentrate from La Zanja.
4. For all metals produced.
5. For Buenaventura, does not consider management services charged to subsidiaries.
6. Sustaining Capex + Growth Capex equals Acquisitions of mining concessions, development costs, property, plant and equipment.

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 20 of 25

Buenaventura
All-in Sustaining Cost for 9M17

	Buenaventura¹				La Zanja				Tantahuatay				Attributable ²
		9M17				9M17				9M17				9M17
Au Ounces Sold BVN				198,883
Au Ounces bought from La Zanja				-27,278
Au Ounces Sold Net				171,605				98,015				104,217				265,398

		9M17				9M17				9M17				9M17
Income Statement & Cash Flow	US$ 000'		US$/Oz Au		US$ 000'		US$/Oz Au		US$ 000'		US$/Oz Au		US$ 000'		US$/Oz Au

Cost of Sales³		261,204		1,522		75,279		768		47,572		456		320,221		1,207
Exploration in Operating Units		67,938		396		855		9		7,144		69		71,256		268
Royalties		14,672		85				0				0		14,672		55
Comercial Deductions⁴		50,632		295		868		9		415		4		51,259		193
Selling Expenses		6,122		36		518		5		599		6		6,637		25
Administrative Expenses		39,994		233		1,687		17		2,718		26		41,979		158
Other, net		5,306		31		572		6		-363		-3		5,464		21
Sustaining Capex⁵		36,941		215		9,665		99		19,963		192		50,074		189

By-product Credit		-331,457		-1,932		-3,140		-32		-8,892		-85		-336,688		-1,269

All-in Sustaining Cost		151,352		882		86,304		881		69,156		664		224,873		847

*All-in Sustaining Cost does not include: Depreciation and Amortization, Stoppage of mining units, Exploration in non-operating areas.

Notes:
1. Non-consolidated financial statements for Compañia De Minas Buenaventura S.A.A.
2. Considers 100% from Compañia De Minas Buenaventura S.A.A., 53.06% from La Zanja and 40.095% from Tantahuatay.
3. For Buenaventura does not consider purchase of concentrate from La Zanja.
4. For all metals produced.
5. Sustaining Capex + Growth Capex equals Acquisitions of mining concessions, development costs, property, plant and equipment.

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 21 of 25

Buenaventura
All-in Sustaining Cost for 9M16

	Buenaventura¹				La Zanja				Tantahuatay				Attributable ²
		9M16				9M16				9M16				9M16
Au Ounces Sold BVN				258,386
Au Ounces bought from La Zanja				-114,997
Au Ounces Sold Net				143,389				107,702				107,327				243,568

		9M16				9M16				9M16				9M16
Income Statement & Cash Flow	US$ 000'		US$/Oz Au		US$ 000'		US$/Oz Au		US$ 000'		US$/Oz Au		US$ 000'		US$/Oz Au

Cost of Sales³		203,730		1,421		60,004		557		46,240		431		254,108		1,043
Exploration in Operating Units		66,103		461		2,147		20		7,388		69		70,204		288
Royalties		15,499		108		0		0		0		0		15,499		64
Comercial Deductions⁴		48,833		341		2,611		24		474		4		50,409		207
Selling Expenses		5,822		41		732		7		809		8		6,534		27
Administrative Expenses⁵		38,122		266		1,641		15		1,799		17		39,714		163
Other Expenses		0		0		6,578		61		4,840		45		5,431		22
Other Incomes		-5,162		-36		-12,745		-118		-5,892		-55		-14,287		-59
Administrative charges		0		0		1,959		18		858		8		1,383		6
Sustaining Capex⁶		33,852		236		11,897		110		18,483		172		47,575		195

By-product Credit		-309,031		-2,155		-2,801		-26		-10,269		-96		-314,635		-1,292

All-in Sustaining Cost		97,768		682		72,022		669		64,731		603		161,937		665

*All-in Sustaining Cost does not include: Depreciation and Amortization, Stoppage of mining units, Exploration in non-operating areas.

Notes:
1. Non-consolidated financial statements for Compañia De Minas Buenaventura S.A.A.
2. Considers 100% from Compañia De Minas Buenaventura S.A.A., 53.06% from La Zanja and 40.095% from Tantahuatay.
3. For Buenaventura does not consider purchase of concentrate from La Zanja.
4. For all metals produced.
5. For Buenaventura, does not consider management services charged to subsidiaries.
6. Sustaining Capex + Growth Capex equals Acquisitions of mining concessions, development costs, property, plant and equipment.

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 22 of 25

APPENDIX 6

Compañía de Minas Buenaventura S.A.A. and Subsidiaries
Consolidated Statement of Financial Position
As of September 30, 2017 and December 31, 2016
	2017			2016
Assets	US$(000)			US$(000)
Current assets
Cash and cash equivalents		185,487			80,544
Trade and other accounts receivable, net		285,362			269,089
Inventory, net		140,557			120,947
Income tax credit		18,373			19,956
Prepaid expenses		8,625			11,392
Embedded derivatives for sale of concentrate, net		2,267			-
		640,671			501,928
Assets classified as held for sale		9,629			-
		650,300			501,928

Non-current assets
Trade and other receivables, net		44,138			166,048
Long-term income tax credit		3,708			3,660
Long-term inventory		3,238			14,027
Investment in associates		1,537,271			1,536,607
Mining concessions, development costs, property, plant and equipment, net		1,994,090			1,960,025
Investment properties, net		104			10,089
Deferred income tax asset, net		22,965			25,881
Prepaid expenses		27,823			30,431
Other assets		22,071			17,719
		3,655,408			3,764,487

Total assets		4,305,708			4,266,415


Liabilities and shareholders' equity, net
Current liabilities
Bank loans		135,000			55,000
Trade and other payables		239,698			273,440
Provisions		67,328			62,502
Income tax payable		1,580			8,686
Embedded derivatives for sale of concentrate, net		1,520			1,524
Hedge derivative financial instruments		12,292			3,863
Financial obligations		78,798			40,110
		536,216			445,125


Non-current liabilities
Trade and other payables		965			15,982
Provisions		164,659			174,190
Financial obligations		484,245			552,232
Contingent consideration liability		17,570			19,343
Deferred income tax liability, net		14,884			12,330
		682,323			774,077

Total liabilities		1,218,539			1,219,202

Shareholders' equity, net
Capital stock		750,497			750,497
Investment shares		791			791
Additional paid-in capital		218,450			218,450
Legal reserve		163,071			162,744
Other reserves		269			269
Retained earnings		1,728,157			1,690,123
Other reserves of equity		(5,447	)		(1,783	)
Shareholders' equity, net attributable to owners of the parent		2,855,788			2,821,091
Non-controlling interest		231,381			226,122
Total shareholders' equity, net		3,087,169			3,047,213

Total liabilities and shareholders' equity, net		4,305,708			4,266,415

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 23 of 25

Compañía de Minas Buenaventura S.A.A. and Subsidiaries
Consolidated Statement of Income
For the three and nine-month periods ended September 30, 2017 and 2016


	For the three-month period ended September 30,						For the nine-month period ended September 30,
	2017			2016			2017			2016
Continuing operations	US$(000)			US$(000)			US$(000)			US$(000)
Operating income
Net sales of goods		355,085			257,484			867,439			746,310
Net sales of services		8,186			5,598			20,714			16,859
Royalty income		5,485			5,947			15,595			18,493
Total operating income		368,756			269,029			903,748			781,662

Operating costs
Cost of sales, without considering depreciation and amortization		-176,962			-127,210			-448,980			-363,194
Cost of services, without considering depreciation and amortization		-3,908			-2,542			-9,624			-8,351
Depreciation and amortization		-58,464			-45,361			-139,599			-138,041
Exploration in operating units		-27,591			-24,985			-68,793			-66,206
Mining royalties		-8,907			-7,332			-22,555			-20,375
Total operating costs		(275,832	)		(207,430	)		(689,551	)		(596,167	)

Gross profit		92,924			61,599			214,197			185,495

Operating expenses, net
Administrative expenses		-20,226			-16,879			-60,940			-58,048
Selling expenses		-5,907			-5,531			-16,074			-15,646
Exploration in non-operating areas		-4,388			-6,355			-12,216			-14,824
Recovery (expense) for provision for contingencies		-1,512			-331			-13,328			-129
Other, net		-3,502			2,241			-11,373			10,561
Total operating expenses, net		(35,535	)		(26,855	)		(113,931	)		(78,086	)

Operating profit		57,389			34,744			100,266			107,409

Other income (expense), net
Share in the results of associates		-32,908			-11,850			8,901			37,222
Financial income		2,178			1,749			4,651			6,061
Net gain (loss) from currency exchange difference		-1,872			-4,233			2,343			1,255
Financial costs		-10,369			-10,911			-25,838			-26,585
Total other income, net		(42,971	)		(25,245	)		(9,943	)		17,953

Profit before income tax		14,418			9,499			90,323			125,362

Current income tax		-8,188			-14,054			-18,846			-32,359
Deferred income tax		-9,853			-17,075			-8,228			-5,266

Profit (loss) from continuing operations		(3,623	)		(21,630	)		63,249			87,737

Discontinued operations
Profit (loss) from discontinued operations		(1,494	)		(6,736	)		2,145			(6,382	)
Net profit (loss)		(5,117	)		(28,366	)		65,394			81,355

Attributable to:
Owners of the parent		-12,023			-24,651			52,513			82,372
Non-controlling interest		6,906			-3,715			12,881			-1,017
		(5,117	)		(28,366	)		65,394			81,355

Basic and diluted profit (loss) per share attributable to
equity holders of the parent, stated in U.S. dollars		(0.05	)		(0.10	)		0.21			0.32

Weighted average number of shares outstanding
(common and investment), in units		253,986,867			253,715,190			253,986,867			253,715,190

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 24 of 25

Compañía de Minas Buenaventura S.A.A. and Subsidiaries
Consolidated Statement of Cash Flows
For the three and nine-month periods ended September 30, 2017 and 2016

	For the three-month period ended September 30,						For the nine-month period ended September 30,
	2017			2016			2017			2016
	US$(000)			US$(000)			US$(000)			US$(000)

Operating activities
Proceeds from sales		316,646			262,108			848,880			677,953
Value Added Tax recovered		28,376			34,850			90,373			105,722
Royalty received		4,511			5,947			16,020			27,005
Proceeds from dividends		1,857			3,142			7,032			139,926
Interest received		33			52			3,150			1,766
Payments to suppliers and third-parties		(209,375	)		(190,615	)		(647,965	)		(523,634	)
Payments to employees		(36,553	)		(36,065	)		(123,552	)		(105,219	)
Payments of interest		(7,184	)		(1,068	)		(21,355	)		(18,941	)
Payment of income taxes		(3,245	)		(2,705	)		(19,784	)		(14,166	)
Payments of mining royalties		(5,867	)		(6,053	)		(14,672	)		(15,409	)

Net cash and cash equivalents provided by operating activities		89,199			69,593			138,127			275,003

Investing activities
Proceeds from sales of mining concessions, property, plant and equipment		(47,933	)		(118,296	)		(196,841	)		(239,664	)
Proceeds from loans		-			-			124,800			-
Acquisitions of mining concessions, development costs, property, plant and equipment		266			3,352			1,704			5,651

Net cash and cash equivalents provided by (used in) investing activities		(47,667	)		(114,944	)		(70,337	)		(234,013	)

Financing activities
Proceeds of bank loans		-			-			245,000			175,851
Payments of bank loans		-			(3,760	)		(165,000	)		(415,760	)
Proceeds of financial obligations		-			210			-			275,210
Payments of financial obligations		(7,010	)		(8,297	)		(22,746	)		(25,180	)
Dividends paid to controlling interest		-			-			(14,479	)		(9	)
Dividends paid to non-controlling interest		(1,320	)		(1,649	)		(4,516	)		(5,709	)
Increase of restricted bank accounts		1,635			(2,023	)		(1,106	)		(4,011	)
Acquisition of non-controlling interest		-			(1,210	)		-			(1,210	)
Repurchase of treasury shares		-			(4,152	)		-			(5,459	)

Net cash and cash equivalents provided by (used in) financing activities		(6,695	)		(20,881	)		37,153			(6,277	)

Net increase in cash and cash equivalents during the period		34,837			(66,232	)		104,943			34,713
Cash and cash equivalents at the beginning of the period		150,650			179,464			80,544			78,519

Cash and cash equivalents at period-end		185,487			113,232			185,487			113,232

Compañía de Minas Buenaventura S.A.A.

Third Quarter 2017 Results

Page 25 of 25

	For the three-month period ended September 30,						For the nine-month period ended September 30,
	2017			2016			2017			2016
	US$(000)			US$(000)			US$(000)			US$(000)

Reconciliation of net profit to cash and cash equivalents provided
by operating activities

Net loss		(12,023	)		(24,651	)		52,513			82,372

Plus (less):
Depreciation and amortization		58,464			45,361			139,599			138,041
Recovery (expense) for provision for contingencies		1,512			331			13,328			129
Loss attributable to non-controlling interest		6,906			(3,715	)		12,881			(1,017	)
Hedge derivative instruments		1,904			-			7,633			-
Accretion expense of provision for closure of mining units and exploration projects		600			1,112			2,108			2,810
Fair Value of provision for contingences liabilities		-			-			(1,773	)		3,530
Reversal (provision) for impairment loss of inventories		1,494			(291	)		2,302			(9,145	)
Net share in results of associates		32,908			11,850			(8,901	)		(37,222	)
Net loss (gain) from currency exchange difference		1,872			4,233			(2,343	)		(1,255	)
Provision for estimated fair value of embedded derivatives related to concentrate		1,535			20,651			(2,271	)		(9,298	)
sales and adjustments on open liquidations
Deferred income tax expense (income)		9,853			17,075			8,228			5,266
Other net		709			(1,096	)		(2,358	)		(2,939	)

Net changes in operating assets and liabilities:
Decrease (increase) in operating assets -
Trade and other accounts receivable		(33,454	)		(32,057	)		(19,051	)		(68,235	)
Inventories		12,951			(8,598	)		(11,123	)		(6,777	)
Income tax credit		(167	)		6,219			1,535			24,220
Prepaid expenses		1,860			3,809			5,375			(3,115	)
Increase (decrease) in operating liabilities -
Trade and other accounts payable		(9,723	)		38,245			(54,776	)		21,908
Provisions		9,898			(12,621	)		(4,705	)		(4,196	)
Income tax payable		243			594			(7,106	)		-

Proceeds from dividends		1,857			3,142			7,032			139,926

Net cash and cash equivalents provided by operating activities		89,199			69,593			138,127			275,003

Signature

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

COMPAÑÍA DE MINAS BUENAVENTURA S.A.A.

By: /s/ CARLOS E. GALVEZ PINILLOS

Name: Carlos E. Galvez Pinillos

Title: Chief Financial Officer

Date: October 27, 2017