# EDGAR Filing Document

**Accession Number:** 0001013131
**File Stem:** 0001104659-25-104990
**Filing Date:** 2025-10
**Character Count:** 152003
**Document Hash:** aedbbd21e579bca8a663d3588b9b20df
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-104990.hdr.sgml**: 20251031

**ACCESSION NUMBER**: 0001104659-25-104990

**CONFORMED SUBMISSION TYPE**: 6-K/A

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251030

**FILED AS OF DATE**: 20251031

**DATE AS OF CHANGE**: 20251031

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BUENAVENTURA MINING CO INC
- **CENTRAL INDEX KEY:** 0001013131
- **STANDARD INDUSTRIAL CLASSIFICATION:** METAL MINING [1000]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-14370
- **FILM NUMBER:** 251441325

**BUSINESS ADDRESS:**
- **STREET 1:** AVE CARLOS VILLARAN 790
- **CITY:** LIMA
- **STATE:** R5
- **ZIP:** 13
- **BUSINESS PHONE:** 5114192536

**MAIL ADDRESS:**
- **STREET 1:** AV. CARLOS VILLARAN 790
- **CITY:** LIMA
- **STATE:** R5
- **ZIP:** 13

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

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**FORM 6-K**

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**Report of Foreign Issuer**

**Pursuant to Rule 13a-16 or 15d-16**

**of the Securities Exchange Act of 1934**

**For the month of October 2025**

**Commission File Number: 001-14370**

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**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)

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**AV. BEGONIAS NO. 415, 19TH FLOOR,<br> SAN ISIDRO, LIMA, PERU**<br> (Address of principal executive office)

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

Form 20-F ⌧ 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):

Yes ◻ No ⌧

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):

Yes ◻ No ⌧

**Buenaventura Announces**

**Third Quarter and Nine-month 2025 Results**

Lima, Peru, October 30, 2025 – 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 (3Q25) and nine-month period ended September 30, 2025 (9M25). 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 and Nine-Month 2025 Highlights:**

&nbsp;&nbsp;&nbsp;&nbsp;· Buenaventura's 3Q25
consolidated silver production decreased by 3% YoY due to lower production at Uchucchacua and Yumpag, partially offset by increased production
at El Brocal and Julcani. Gold production decreased by 21% YoY due to decreased output at Orcopampa and Tambomayo. Copper production decreased
by 24% YoY. In 3Q24, all stockpiled ore was processed from El Brocal's 2Q24 voluntary temporary processing plant suspension.

&nbsp;&nbsp;&nbsp;&nbsp;· 3Q25 EBITDA from direct
operations was US$202.1 million, compared to US$136.5 million reported in 3Q24 which excluded the sale of Chaupiloma Royalty Company.
9M25 EBITDA from direct operations reached US$458.5 million, compared to US$338.2 million reported in 9M24, which excluded the sale
of Chaupiloma Royalty Company.

&nbsp;&nbsp;&nbsp;&nbsp;· 3Q25 net income reached
US$179.0 million, compared to US$244.4 million for the same period in 2024, which included the sale of Chaupiloma Royalty Company. 9M25
net income was US$424.2 million, compared to US$385.9 million in net income for the 9M24, which included the sale of Chaupiloma Royalty
Company.

&nbsp;&nbsp;&nbsp;&nbsp;· 3Q25 CAPEX related
to San Gabriel was US$92.3 million, allocated to completing the processing plant's construction to enable the commencement of commercial
production in 4Q25.

&nbsp;&nbsp;&nbsp;&nbsp;· Buenaventura's cash
position reached US$485.7 million by quarter's end, September 30, 2025, while net debt amounted to US$224.9 million, resulting
in a Leverage Ratio of 0.41x.

&nbsp;&nbsp;&nbsp;&nbsp;· On September 5, 2025,
the Peruvian Ministry of Energy and Mines granted Coimolache a new operating permit authorizing fresh ore placement on a new level of
Tantahuatay's leach platform and on additional adjacent surface areas. This milestone marks the initiation of full-capacity production
at both the mine and the leach pad.

&nbsp;&nbsp;&nbsp;&nbsp;· Buenaventura's
Board of Directors has approved a dividend payment of US$0.1446 per share/ADS.

**Financial Highlights** (in millions of US$, excluding EPS)**:**

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | **3Q25** | **3Q24** | **Var %** | **9M25** | **9M24** | **Var %** |
| **Total Revenues** | 431.0 | 331.1 | 30% | 1108.2 | 855.0 | 30% |
| **Operating Income** | 154.3 | 286.4 | -46% | 336.1 | 399.9 | -16% |
| **EBITDA Direct Operations <sup>(1)</sup>** | 202.1 | 136.5 | 48% | 458.5 | 338.2 | 36% |
| **EBITDA Including Affiliates** | **345.5** | **242.1** | **43%** | **837.3** | **664.7** | **26%** |
| **Net Income <sup>(2)</sup>** | 167.1 | 236.9 | -29% | 398.5 | 369.1 | 8% |
| **EPS <sup>(3)</sup>** | 0.66 | 0.93 | -29% | 1.57 | 1.45 | 8% |

---

&nbsp;&nbsp;&nbsp;&nbsp;(1) Does not include US$
208.9 million from the sale of Chaupiloma Royalty Company in 3Q24.

&nbsp;&nbsp;&nbsp;&nbsp;(2) Net Income attributable
to owners of the parent.

&nbsp;&nbsp;&nbsp;&nbsp;(3) As of September 30,
2025, Buenaventura had a weighted average number of shares outstanding of 253,986,867.

&nbsp;&nbsp;**CAPEX**

3Q25 capital expenditures were US$133.1 million, compared to US$98.0 million for the same period in 2024. CAPEX for the quarter includes US$92.3 million for the San Gabriel Project, US$8.7 million for the Trapiche Project, and US$32.1 million in sustaining capex. 9M25 capital expenditures reached US$275.9 million, compared to US$240.1 million in 9M24.

&nbsp;&nbsp;**Operating Revenues**

3Q25 net sales reached US$431.0 million, compared to US$331.1 million in 3Q24. Increased net sales were driven by higher gold, silver, and copper prices during the quarter, as well as an increase in silver volume sold compared to 3Q24.

Additionally, Buenaventura commercialized 2,289 MT of Cerro Verde's contained copper, resulting in approximately US$24.7 million in net revenue.

The Company recorded a positive US$18.0 million provisional price adjustment for 3Q25. This is comprised of a US$6.5 million increase in fair value of accounts receivables and a US$11.5 million increase in adjustments to prior period liquidations in 3Q25. This compares to a negative US$1.0 million adjustment for the 3Q24.

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Operating Highlights** | **3Q25** | **3Q24** | **Var %** | **9M25** | **9M24** | **Var %** |
| **Net Sales (millions of US$)** | 431.0 | 331.1 | 30% | 1108.2 | 855.0 | 30% |
|  **Average Gold Price (US$/oz.)** <br> **Direct Operations<sup>(1) (2)</sup>** | 3594 | 2514 | 43% | 3287 | 2323 | 41% |
|  **Average Gold Price (US$/oz.)** <br> **incl Associated<sup>(2) (3)</sup>** | 3580 | 2517 | 42% | 3284 | 2312 | 42% |
| **Average Silver Price (US$/oz.)<sup>(1) (2)</sup>** | 40.81 | 29.92 | 36% | 36.08 | 28.14 | 28% |
| **Average Lead Price (US$/MT)<sup>(1) (2)</sup>** | 1903 | 2082 | -9% | 1892 | 2078 | -9% |
| **Average Zinc Price (US$/MT)<sup>(1) (2)</sup>** | 2811 | 2883 | -2% | 2710 | 2618 | 4% |
| **Average Copper Price (US$/MT)<sup>(1) (2)</sup>** | 9989 | 9391 | 6% | 9632 | 9124 | 6% |

---

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Volume Sold** | **3Q25** | **3Q24** | **Var %** | **9M25** | **9M24** | **Var %** |
| **Gold Oz Direct Operations<sup>(1)</sup>** | 28038 | 35345 | -21% | 78661 | 100151 | -21% |
| **Gold Oz incl. Associated<sup>(3)</sup>** | 33424 | 38733 | -14% | 94018 | 115598 | -19% |
| **Silver Oz<sup>(1)</sup>** | 4121632 | 3875123 | 6% | 11110268 | 10676849 | 4% |
| **Lead MT<sup>(1)</sup>** | 4586 | 4455 | 3% | 12341 | 13129 | -6% |
| **Zinc MT<sup>(1)</sup>** | 5973 | 5995 | 0% | 17266 | 18417 | -6% |
| **Copper MT<sup>(1)</sup>** | 14223 | 15622 | -9% | 42481 | 39883 | 7% |

---

&nbsp;&nbsp;&nbsp;&nbsp;(1) Buenaventura Consolidated figure includes
100% of Buenaventura's operating units, 100% of La Zanja, 100% of El Brocal and 100% of Buenaventura Trading.

&nbsp;&nbsp;&nbsp;&nbsp;(2) Realized prices include both provisional sales
and final adjustments for price changes.

&nbsp;&nbsp;&nbsp;&nbsp;(3) Considers 100% of Buenaventura's operating
units, 100% of La Zanja, 100% of El Brocal, 100% of Buenaventura Trading and 40.094% of Coimolache.

&nbsp;&nbsp;**Production and Operating Costs**

Buenaventura's 3Q25 equity gold production was 34,950 ounces, compared to 39,690 ounces produced in 3Q24. This decrease was primarily due to decreased production at Orcopampa and Tambomayo, which was partially offset by increased production at Coimolache. 3Q25 silver production was 4,041,451 ounces, compared to 4,228,250 ounces produced in 3Q24. This decrease was primarily due to lower production at Uchucchacua and Yumpag, partially offset by increased production at El Brocal and Julcani. 3Q25 lead production was 4,944 MT, compared to 4,953 MT produced in 3Q24. 3Q25 zinc production was 7,036 MT, compared to 7,374 MT produced in 3Q24. The Company's 3Q25 equity copper production was 28,159 MT, compared to 32,352 MT produced in 3Q24, due to decreased production at El Brocal and Cerro Verde.

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Equity Production** | **3Q25** | **3Q24** | **Var %** | **9M25** | **9M24** | **Var %** |
| **Gold Oz Direct Operations<sup>(1)</sup>** | 28953 | 36335 | -20% | 80277 | 102637 | -22% |
|  **Gold Oz including Associated**<br> **Companies<sup>(2)</sup>** | 34950 | 39690 | -12% | 96896 | 118095 | -18% |
| **Silver Oz<sup>(1)</sup>** | 4041451 | 4228250 | -4% | 10964140 | 10859769 | 1% |
| **Lead MT<sup>(1)</sup>** | 4944 | 4953 | 0% | 13191 | 14523 | -9% |
| **Zinc MT<sup>(1)</sup>** | 7036 | 7374 | -5% | 20585 | 21774 | -5% |
| **Copper MT Direct Operations<sup>(1)</sup>** | 7902 | 10444 | -24% | 23597 | 26388 | -11% |
|  **Copper MT including Associated**<br> **Companies<sup>(3)</sup>** | 28159 | 32352 | -13% | 81730 | 90009 | -9% |

---

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Consolidated Production** | **3Q25** | **3Q24** | **Var %** | **9M25** | **9M24** | **Var %** |
| **Gold Oz<sup>(4)</sup>** | 30894 | 38909 | -21% | 86155 | 109321 | -21% |
| **Silver Oz<sup>(4)</sup>** | 4278658 | 4427457 | -3% | 11520791 | 11516207 | 0% |
| **Lead Pb<sup>(4)</sup>** | 4988 | 4953 | 1% | 13235 | 14523 | -9% |
| **Zinc MT<sup>(4)</sup>** | 7065 | 7374 | -4% | 20615 | 22540 | -9% |
| **Copper MT<sup>(4)</sup>** | 12770 | 16912 | -24% | 38162 | 42716 | -11% |

---

&nbsp;&nbsp;&nbsp;&nbsp;(1) Buenaventura's Direct Operations includes
100% of Buenaventura's operating units, 100% of La Zanja and 61.43% of El Brocal.

&nbsp;&nbsp;&nbsp;&nbsp;(2) Based on 100% of Buenaventura´s operating
units, 100% of La Zanja, 61.43% of El Brocal and 40.094% of Coimolache.

&nbsp;&nbsp;&nbsp;&nbsp;(3) Based on 100% of Buenaventura´s operating
units, 61.43% of El Brocal and 19.58% of Cerro Verde.

&nbsp;&nbsp;&nbsp;&nbsp;(4) Based on 100% of Buenaventura's operating
units, 100% of La Zanja and 100% of El Brocal.

**Tambomayo (100% owned by Buenaventura)**

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| **Production** | **Production** | **Production** | **Production** | **Production** | **Production** | **Production** | **Production** |
|  | | **3Q25** | **3Q24** | **Var %** | **9M25** | **9M24** | **Var %** |
| **Gold** | **Oz** | 4954 | 8015 | **-38%** | 10973 | 26072 | **-58%** |
| Silver | Oz | 380818 | 434054 | **-12%** | 733392 | 1143490 | **-36%** |
| **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** |
|  |  | **3Q25** | **3Q24** | **Var %** | **9M25** | **9M24** | **Var %** |
| **Gold** | **US$/Oz** | 2762 | 1469 | **88%** | 2822 | 1430 | **97%** |

---

Tambomayo 3Q25 gold production decreased by 38% year on year and silver production decreased by 12% year on year primarily due to decreased ore volumes processed during the quarter. Gold and silver production was in line with expectations, as high-grade oxide ore processing successfully began, as was reported in 2Q25.

Cost Applicable to Sales (CAS) increased to 2,762 US$/Oz in 3Q25 from 1,469 US$/Oz in 3Q24 primarily due to lower sales volumes.

**Orcopampa (100% owned by Buenaventura)**

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| **Production** | **Production** | **Production** | **Production** | **Production** | **Production** | **Production** | **Production** |
|  | | **3Q25** | **3Q24** | **Var %** | **9M25** | **9M24** | **Var %** |
| **Gold** | **Oz** | 13314 | 17831 | **-25%** | 39878 | 54426 | **-27%** |
| Silver | Oz | 3827 | 6891 | **-44%** | 15462 | 22857 | **-32%** |
| **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** |
|  |  | **3Q25** | **3Q24** | **Var %** | **9M25** | **9M24** | **Var %** |
| **Gold** | **US$/Oz** | 1508 | 1242 | **21%** | 1544 | 1167 | **32%** |

---

3Q25 gold and silver production at Orcopampa decreased by 25% and 44% year on year, respectively, primarily due to decreased ore volumes processed during the quarter, consistent with the 2025 planned mining sequence. CAS increased to 1,508 US$/Oz in 3Q25 compared to 1,242 US$/Oz in 3Q24 due to decreased volume sold.

**Coimolache (40.09% owned by Buenaventura)** 

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| **Production** | **Production** | **Production** | **Production** | **Production** | **Production** | **Production** | **Production** |
|  | | **3Q25** | **3Q24** | **Var %** | **9M25** | **9M24** | **Var %** |
| **Gold** | **Oz** | 14958 | 8368 | **79%** | 41450 | 38554 | **8%** |
| **Silver** | **Oz** | 68362 | 38705 | **77%** | 236850 | 178341 | **33%** |
| **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** |
|  |  | **3Q25** | **3Q24** | **Var %** | **9M25** | **9M24** | **Var %** |
| **Gold** | **US$/Oz** | 1420 | 2142 | **-34%** | 1411 | 1512 | **-7%** |

---

Coimolache 3Q25 gold and silver production increased by 79% and 77% year on year, respectively, primarily due to an increase in ore volumes processed during the quarter following the initiation of full-capacity operations at the mine and leach pad in early September 2025. This result exceeded expectations as the permit was originally anticipated by late September. CAS decreased to 1,420 US$/Oz in 3Q25 from 2,142 US$/Oz in 3Q24, mainly due to the increased volume sold resulting from higher production.

**Uchucchacua & Yumpag (100% owned by Buenaventura)**

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| **Production** | **Production** | **Production** | **Production** | **Production** | **Production** | **Production** | **Production** |
|  | | **3Q25** | **3Q24** | **Var %** | **9M25** | **9M24** | **Var %** |
| **Silver - Uchucchacua** | **Oz** | 585095 | 608412 | **-4%** | 1548887 | 1524944 | **2%** |
| **Silver - Yumpag** | **Oz** | 2312100 | 2591227 | **-11%** | 6742691 | 6017839 | **12%** |
| **Zinc** | **MT** | 6395 | 6153 | **4%** | 18539 | 16521 | **12%** |
| **Lead** | **MT** | 4055 | 3865 | **5%** | 10752 | 10812 | **-1%** |
| **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** |
|  |  | **3Q25** | **3Q24** | **Var %** | **9M25** | **9M24** | **Var %** |
| **Silver** | **US$/Oz** | 14.95 | 14.19 | **5%** | 14.25 | 12.66 | **13%** |

---

Uchucchacua's 3Q25 silver production decreased by 4% year on year, in line with expectations. Zinc and lead production increased by 4% and 5% year on year, respectively. These results reflect the revised mine plan the Company implemented in 2Q25. Mining activities during 3Q25 remained focused on polymetallic stopes, a strategic decision that supports ongoing water pumping and ancillary works but which shifts targeted mining to polymetallic stopes, from the prior target of mining bottom-level stopes with higher silver content. Water pumping activities were completed during 3Q25, and ancillary works are expected to conclude in 4Q25. This enables the team to begin to backfilling the mine's bottom zones with tailings slurry during 4Q25, and access to higher silver-grade areas will be achievable in 2026 as part of the full year mine plan. This process is intended to reduce voids in previously mined areas at the bottom of the mine, enhancing their structural stability and conditioning nearby zones for future operations. These works are expected to be completed by 2Q26.

Yumpag's 3Q25 silver production decreased by 11% year on year, due to a decrease in ore volumes processed during the quarter and lower silver grades. However, production exceeded 3Q25 projections, reflecting the successful implementation of the new Over-Drift-Fill (ODF) mining method introduced in 2Q25. The ODF method enables higher ore recovery and improved selectivity, while reducing surface subsidence and the generation of surface tailings.

3Q25 silver CAS increased to 14.95 US$/Oz, from 14.19 US$/Oz, primarily due to higher cost of sales related to the treatment of increased ore volumes with lower grades, and higher selling expenses, partially offset by an increase in volume sold.

**Julcani (100% owned by Buenaventura)**

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| **Production** | **Production** | **Production** | **Production** | **Production** | **Production** | **Production** | **Production** |
|  | | **3Q25** | **3Q24** | **Var %** | **9M23** | **9M24** | **Var %** |
| **Silver** | **Oz** | 366120 | 261492 | **40%** | 1005561 | 1090232 | **-8%** |
| **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** |
|  |  | **3Q25** | **3Q24** | **Var %** | **9M25** | **9M24** | **Var %** |
| **Silver** | **US$/Oz** | 24.61 | 35.34 | **-30%** | 24.51 | 27.10 | **-10%** |

---

3Q25 silver production at Julcani increased by 40% year on year, which was below expectations, primarily due to the transition to mining zones richer in gold and copper. 3Q25 gold production increased by 72% year on year. CAS decreased to 24.61 US$/Oz in 3Q25 from 24.51 US$/Oz in 3Q24, primarily due to the increased volume sold resulting from increased production.

**El Brocal (61.43% owned by Buenaventura)** 

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| **Production** | **Production** | **Production** | **Production** | **Production** | **Production** | **Production** | **Production** |
|  | | **3Q25** | **3Q24** | **Var %** | **9M25** | **9M24** | **Var %** |
| **Copper** | **MT** | 12621 | 16769 | **-25%** | 37763 | 42334 | **-11%** |
| **Silver** | **Oz** | 615004 | 516480 | **19%** | 1443222 | 1701940 | **-15%** |
| **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** | **Cost Applicable to Sales** |
|  |  | **3Q25** | **3Q24** | **Var %** | **9M25** | **9M24** | **Var %** |
| **Copper** | **US$/MT** | 6074 | 6054 | **0%** | 6299 | 6041 | **4%** |

---

El Brocal's 3Q25 copper production decreased by 25% year on year. In 3Q24, all stockpiled ore was processed from El Brocal's 2Q24 voluntary temporary processing plant suspension. 3Q25 silver production increased by 19% year on year, reflecting the Company's short-term strategy of prioritizing the processing of stockpiles with high precious metals content. During the quarter, the Company processed lead-silver ore previously classified as low grade, which was re-evaluated based on current market conditions and incorporated into the production plan. This material had significant silver content and copper ore throughput was therefore reduced, resulting in a slight decrease in copper production volumes for the quarter.

3Q25 copper CAS was consistent with 3Q24, primarily reflecting cost reductions proportional to lower sales volumes.

**Share in Associated Companies**

Buenaventura's share in associated companies was US$63.5 million in 3Q25, compared with US$49.8 million in 3Q24, comprised of:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  **Share in the Result of Associates** <br> **(in millions of US$)** | **3Q25** | **3Q24** | **Var %** | **9M25** | **9M24** | **Var %** |
| **Cerro Verde** | 63.5 | 49.8 | 28% | 166.8 | 147.2 | 13% |
| **Coimolache** | 8.0 | -0.7 | N.A. | 19.9 | 3.4 | 483% |
| **Other minor** | -0.3 | -0.4 | N.A. | 0.3 | -0.5 | N.A. |
| **Total** | 71.1 | 48.7 | 46% | 187.1 | 150.2 | 25% |

---

**Cerro Verde (19.58% owned by Buenaventura)**

3Q25 copper production at Cerro Verde was 103,457 MT, 20,257 MT of which is attributable to Buenaventura; a 7.5% decrease as compared to 111,891 MT produced in 3Q24, 21,908 MT of which was attributable to Buenaventura.

Cerro Verde reported net income of US$323.9 million in 3Q25, compared to US$253.6 million in 3Q24. This year on year increase was primarily driven by a US$138.2 million increase in sales, attributed to higher realized copper and molybdenum prices. This was partially offset by a US$38.3 million increase in income tax expense and a US$20.8 million increase in cost of sales, primarily due to higher stripping cost depreciation.

Cerro Verde 3Q24 capital expenditure was US$104.5 million.

**Coimolache (40.09% owned by Buenaventura)**

Coimolache reported a US$20.5 million net income in 3Q25, compared to a US$2.0 million net loss in 3Q24.

**San Gabriel Project**

3Q25 capital expenditures related to San Gabriel were US$92.3 million. Throughout the quarter, Buenaventura prioritized the completion of the processing plant's construction to enable the commencement of commercial production in 4Q25. Targeted production initiation for the 4Q25 therefore remains unchanged, subject to final permitting and required approvals.

Crushing, grinding and leaching tanks commissioning C1/C2 nearly completed. C3/C4 commissioning is scheduled for completion in 4Q25. Mine development has been finalized, and mining preparation activities have commenced using Buenaventura's mine fleet.

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| &nbsp;&nbsp;**Item** | &nbsp;&nbsp;**Description** | &nbsp;&nbsp;**Cumulative Progress as of:** | &nbsp;&nbsp;**Cumulative Progress as of:** | &nbsp;&nbsp;**Cumulative Progress as of:** | &nbsp;&nbsp;**Cumulative Progress as of:** |
| &nbsp;&nbsp;**Item** | &nbsp;&nbsp;**Description** | &nbsp;&nbsp;**4Q24** | &nbsp;&nbsp;**1Q25** | &nbsp;&nbsp;**2Q25** | &nbsp;&nbsp;**3Q25** |
| &nbsp;&nbsp;**1** | &nbsp;&nbsp;**Engineering** | &nbsp;&nbsp;**100%** | &nbsp;&nbsp;**100%** | &nbsp;&nbsp;**100%** | &nbsp;&nbsp;**100%** |
| &nbsp;&nbsp;**2** | &nbsp;&nbsp;**Procurement** | &nbsp;&nbsp;**100%** | &nbsp;&nbsp;**100%** | &nbsp;&nbsp;**100%** | &nbsp;&nbsp;**100%** |
| &nbsp;&nbsp;**3** | &nbsp;&nbsp;**Construction** | &nbsp;&nbsp;**63%** | &nbsp;&nbsp;**75%** | &nbsp;&nbsp;**86%** | &nbsp;&nbsp;**95%** |
| &nbsp;&nbsp;**4** | &nbsp;&nbsp;**Commissioning** | &nbsp;&nbsp;**3%** | &nbsp;&nbsp;**10%** | &nbsp;&nbsp;**24%** | &nbsp;&nbsp;**65%** |
|  | &nbsp;&nbsp;**Total** | &nbsp;&nbsp;**71%** | &nbsp;&nbsp;**79%** | &nbsp;&nbsp;**88%** | &nbsp;&nbsp;**96%** |

---

***\*\*\****

**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 2023 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 and related conference call contain, in addition to historical information, forward-looking statements including statements related to the Company's ability to manage its business and liquidity during and after the COVID-19 pandemic, the impact of the COVID-19 pandemic on the Company's results of operations, including net revenues, earnings and cash flows, the Company's ability to reduce costs and capital spending in response to the COVID-19 pandemic if needed, the Company's balance sheet, liquidity and inventory position throughout and following the COVID-19 pandemic, the Company's prospects for financial performance, growth and achievement of its long-term growth algorithm following the COVID-19 pandemic, future dividends and share repurchases.

This press release may also 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, 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, 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.

**\*\*Tables to follow\*\***

**APPENDIX 1** 

---

| | | |
|:---|:---|:---|
| **Equity Participation in**<br> **Subsidiaries and Associates (as of September 30, 2025)** | **Equity Participation in**<br> **Subsidiaries and Associates (as of September 30, 2025)** | **Equity Participation in**<br> **Subsidiaries and Associates (as of September 30, 2025)** |
| | **BVN**<br>**Equity %** | **Operating**<br>**Mines / Business** |
| El Molle Verde S.A.C\* | 100.00 | Trapiche Project |
| Minera La Zanja S.A\* | 100.00 | La Zanja |
| Sociedad Minera El Brocal S.A.A\* | 61.43 | Colquijirca and Marcapunta |
| Compañía Minera Coimolache S.A\*\* | 40.09 | Tantahuatay |
| 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 Trading SAS\* | 100.00 | Trading |

---

(\*) Consolidated

(\*\*) Equity Accounting

**APPENDIX 2**

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| &nbsp;&nbsp;&nbsp;**Gold Production** | &nbsp;&nbsp;&nbsp;**Gold Production** |  | **15** |  |  | **18** |  |  |
| &nbsp;&nbsp;**Mining Unit** | &nbsp;&nbsp;**Operating Results** | **Unit** | **3Q25** | **3Q24** | **△%** | **9M25** | **9M24** | **△ %** |
| &nbsp;&nbsp;**Underground** |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;Tambomayo | &nbsp;&nbsp;Ore Milled | DMT | 118484 | 146457 | **-19%** | 274715 | 427016 | **-36%** |
| &nbsp;&nbsp;Tambomayo | &nbsp;&nbsp;Ore Grade | Gr/MT | 1.72 | 2.04 | **-15%** | 1.60 | 2.23 | **-28%** |
| &nbsp;&nbsp;Tambomayo | &nbsp;&nbsp;Recovery Rate | % | 75.58 | 83.61 | **-10%** | 77.89 | 85.29 | **-9%** |
| &nbsp;&nbsp;Tambomayo | &nbsp;&nbsp;Ounces Produced | Oz | 4954 | 8015 | **-38%** | 10973 | 26072 | **-58%** |
| &nbsp;&nbsp;Orcopampa | &nbsp;&nbsp;Ore Milled | DMT | 52256 | 101685 | **-49%** | 166809 | 249813 | **-33%** |
| &nbsp;&nbsp;Orcopampa | &nbsp;&nbsp;Ore Grade | Gr/MT | 8.44 | 5.87 | **44%** | 7.86 | 7.20 | **9%** |
| &nbsp;&nbsp;Orcopampa | &nbsp;&nbsp;Recovery Rate | % | 93.84 | 92.84 | **1%** | 94.61 | 94.09 | **1%** |
| &nbsp;&nbsp;Orcopampa | &nbsp;&nbsp;Ounces Produced\* | Oz | 13314 | 17831 | **-25%** | 39878 | 54426 | **-27%** |
| &nbsp;&nbsp;Marcapunta | &nbsp;&nbsp;Ore Milled | DMT | 976139 | 1223279 | **-20%** | 3023547 | 2963932 | **2%** |
| &nbsp;&nbsp;Marcapunta | &nbsp;&nbsp;Ore Grade | Gr/MT | 0.57 | 0.58 | **-2%** | 0.56 | 0.68 | **-16%** |
| &nbsp;&nbsp;Marcapunta | &nbsp;&nbsp;Recovery Rate | % | 28.03 | 29.08 | **-4%** | 27.76 | 26.66 | **4%** |
| &nbsp;&nbsp;Marcapunta | &nbsp;&nbsp;Ounces Produced\* | Oz | 5032 | 6673 | **-25%** | 15240 | 17165 | **-11%** |
| &nbsp;&nbsp;Julcani <br> Pb - Ag | &nbsp;&nbsp;Ounces Produced | Oz | 205 | 55 | **269%** | 446 | 254 | **76%** |
| &nbsp;&nbsp;Julcani <br> Cu - Au | &nbsp;&nbsp;Ounces Produced | Oz | 2248 | 1372 | **64%** | 5970 | 2585 | **131%** |
| &nbsp;&nbsp;**Open Pit** |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;La Zanja | &nbsp;&nbsp;Ounces Produced | Oz | 5143 | 4963 | **4%** | 13648 | 8655 | **58%** |
| &nbsp;&nbsp;Tajo Norte <br> Cu - Ag | &nbsp;&nbsp;Ounces Produced | Oz |  |  | **N.A.** |  | 164 | **N.A.** |
| &nbsp;&nbsp;Coimolache | &nbsp;&nbsp;Ounces Produced | Oz | 14958 | 8368 | **79%** | 41450 | 38554 | **8%** |
| &nbsp;&nbsp;&nbsp;**Silver Production** | &nbsp;&nbsp;&nbsp;**Silver Production** |  |  |  |  |  |  |  |
| &nbsp;&nbsp;**Mining Unit** | &nbsp;&nbsp;**Operating Results** | **Unit** | **3Q25** | **3Q24** | **△%** | **9M25** | **9M24** | **△ %** |
| &nbsp;&nbsp;**Underground** |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;Tambomayo | &nbsp;&nbsp;Ore Milled | DMT | 118484 | 146457 | **-19%** | 274715 | 427016 | **-36%** |
| &nbsp;&nbsp;Tambomayo | &nbsp;&nbsp;Ore Grade | Oz/MT | 3.80 | 3.34 | **14%** | 3.14 | 3.01 | **4%** |
| &nbsp;&nbsp;Tambomayo | &nbsp;&nbsp;Recovery Rate | % | 84.66 | 88.65 | **-5%** | 85.02 | 88.84 | **-4%** |
| &nbsp;&nbsp;Tambomayo | &nbsp;&nbsp;Ounces Produced | Oz | 380818 | 434054 | **-12%** | 733392 | 1143490 | **-36%** |
| &nbsp;&nbsp;Orcopampa | &nbsp;&nbsp;Ore Milled | DMT | 52256 | 101685 | **-49%** | 166809 | 249813 | **-33%** |
| &nbsp;&nbsp;Orcopampa | &nbsp;&nbsp;Ore Grade | Oz/MT | 0.11 | 0.12 | **-13%** | 0.13 | 0.15 | **-9%** |
| &nbsp;&nbsp;Orcopampa | &nbsp;&nbsp;Recovery Rate | % | 69.03 | 55.52 | **24%** | 69.76 | 62.71 | **11%** |
| &nbsp;&nbsp;Orcopampa | &nbsp;&nbsp;Ounces Produced | Oz | 3827 | 6891 | **-44%** | 15462 | 22857 | **-32%** |
| &nbsp;&nbsp;Uchucchacua | &nbsp;&nbsp;Ore Milled | DMT | 159153 | 138469 | **15%** | 461238 | 351929 | **31%** |
| &nbsp;&nbsp;Uchucchacua | &nbsp;&nbsp;Ore Grade | Oz/MT | 4.57 | 5.39 | **-15%** | 4.22 | 5.25 | **-20%** |
| &nbsp;&nbsp;Uchucchacua | &nbsp;&nbsp;Recovery Rate | % | 80.42 | 81.46 | **-1%** | 79.53 | 82.58 | **-4%** |
| &nbsp;&nbsp;Uchucchacua | &nbsp;&nbsp;Ounces Produced | Oz | 585095 | 608412 | **-4%** | 1548887 | 1524944 | **2%** |
| &nbsp;&nbsp;Yumpag | &nbsp;&nbsp;Ore Milled | DMT | 97811 | 95412 | **3%** | 276643 | 221156 | **25%** |
| &nbsp;&nbsp;Yumpag | &nbsp;&nbsp;Ore Grade | Oz/MT | 24.84 | 28.93 | **-14%** | 25.56 | 29.12 | **-12%** |
| &nbsp;&nbsp;Yumpag | &nbsp;&nbsp;Recovery Rate | % | 95.15 | 93.88 | **1%** | 95.35 | 93.46 | **2%** |
| &nbsp;&nbsp;Yumpag | &nbsp;&nbsp;Ounces Produced | Oz | 2312100 | 2591227 | **-11%** | 6742691 | 6017839 | **12%** |
| &nbsp;&nbsp;Julcani <br> Pb - Ag | &nbsp;&nbsp;Ore Milled | DMT | 16433 | 11661 | **41%** | 43709 | 55455 | **-21%** |
| &nbsp;&nbsp;Julcani <br> Pb - Ag | &nbsp;&nbsp;Ore Grade | Oz/MT | 14.64 | 13.82 | **6%** | 14.83 | 16.12 | **-8%** |
| &nbsp;&nbsp;Julcani <br> Pb - Ag | &nbsp;&nbsp;Recovery Rate | % | 95.91 | 96.89 | **-1%** | 96.52 | 97.04 | **-1%** |
| &nbsp;&nbsp;Julcani <br> Pb - Ag | &nbsp;&nbsp;Ounces Produced\* | Oz | 230802 | 156116 | **48%** | 625703 | 867703 | **-28%** |
| &nbsp;&nbsp;Julcani <br> Cu - Au | &nbsp;&nbsp;Ore Milled | DMT | 22558 | 13787 | **64%** | 59205 | 25440 | **133%** |
| &nbsp;&nbsp;Julcani <br> Cu - Au | &nbsp;&nbsp;Ore Grade | Oz/MT | 6.20 | 7.97 | **-22%** | 6.61 | 9.05 | **-27%** |
| &nbsp;&nbsp;Julcani <br> Cu - Au | &nbsp;&nbsp;Recovery Rate | % | 96.79 | 95.93 | **1%** | 97.01 | 96.64 | **0%** |
| &nbsp;&nbsp;Julcani <br> Cu - Au | &nbsp;&nbsp;Ounces Produced | Oz | 135318 | 105376 | **28%** | 379859 | 222529 | **71%** |
| &nbsp;&nbsp;Marcapunta | &nbsp;&nbsp;Ore Milled | DMT | 976139 | 1223279 | **-20%** | 3023547 | 2963932 | **2%** |
| &nbsp;&nbsp;Marcapunta | &nbsp;&nbsp;Ore Grade | Oz/MT | 0.80 | 0.82 | **-2%** | 0.75 | 0.81 | **-7%** |
| &nbsp;&nbsp;Marcapunta | &nbsp;&nbsp;Recovery Rate | % | 57.53 | 51.76 | **11%** | 56.37 | 51.59 | **9%** |
| &nbsp;&nbsp;Marcapunta | &nbsp;&nbsp;Ounces Produced | Oz | 448308 | 516480 | **-13%** | 1276526 | 1231418 | **4%** |
| &nbsp;&nbsp;**Open Pit** |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;Tajo Norte <br> Cu - Ag | &nbsp;&nbsp;Ore Milled | DMT |  |  | **N.A.** |  | 209668 | **N.A.** |
| &nbsp;&nbsp;Tajo Norte <br> Cu - Ag | &nbsp;&nbsp;Ore Grade | Oz/MT |  |  | **N.A.** |  | 3.47 | **N.A.** |
| &nbsp;&nbsp;Tajo Norte <br> Cu - Ag | &nbsp;&nbsp;Recovery Rate | % |  |  | **N.A.** |  | 52.19 | **N.A.** |
| &nbsp;&nbsp;Tajo Norte <br> Cu - Ag | &nbsp;&nbsp;Ounces Produced | Oz |  |  | **N.A.** |  | 379333 | **N.A.** |
| &nbsp;&nbsp;Tajo Norte <br> Pb - Zn | &nbsp;&nbsp;Ore Milled | DMT | 123353 |  | **N.A.** | 123353 | 84369 | **46%** |
| &nbsp;&nbsp;Tajo Norte <br> Pb - Zn | &nbsp;&nbsp;Ore Grade | Oz/MT | 3.50 |  | **N.A.** | 3.50 | 3.15 | **11%** |
| &nbsp;&nbsp;Tajo Norte <br> Pb - Zn | &nbsp;&nbsp;Recovery Rate | % | 38.66 |  | **N.A.** | 38.66 | 34.30 | **13%** |
| &nbsp;&nbsp;Tajo Norte <br> Pb - Zn | &nbsp;&nbsp;Ounces Produced | Oz | 166696 |  | **N.A.** | 166696 | 91190 | **83%** |
| &nbsp;&nbsp;La Zanja | &nbsp;&nbsp;Ounces Produced | Oz | 15694 | 8901 | **76%** | 31575 | 14904 | **112%** |
| &nbsp;&nbsp;Coimolache | &nbsp;&nbsp;Ounces Produced | Oz | 68362 | 38705 | **77%** | 236850 | 178341 | **33%** |

---

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| &nbsp;&nbsp;&nbsp;**Lead Production** | &nbsp;&nbsp;&nbsp;**Lead Production** |  |  |  |  |  |  |  |
| &nbsp;&nbsp;**Mining Unit** | &nbsp;&nbsp;**Operating Results** | **Unit** | **3Q25** | **3Q24** | **△%** | **9M25** | **9M24** | **△ %** |
| &nbsp;&nbsp;**Underground** |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;Tambomayo | &nbsp;&nbsp;Ore Milled | DMT | 118484 | 146457 | **-19%** | 274715 | 427016 | **-36%** |
| &nbsp;&nbsp;Tambomayo | &nbsp;&nbsp;Ore Grade | % | 0.63 | 0.75 | **-16%** | 0.81 | 0.83 | **-2%** |
| &nbsp;&nbsp;Tambomayo | &nbsp;&nbsp;Recovery Rate | % | 83.36 | 88.91 | **-6%** | 84.72 | 86.94 | **-3%** |
| &nbsp;&nbsp;Tambomayo | &nbsp;&nbsp;MT Produced | MT | 626 | 979 | **-36%** | 1895 | 3093 | **-39%** |
| &nbsp;&nbsp;Uchucchacua | &nbsp;&nbsp;Ore Milled | DMT | 159153 | 138469 | **15%** | 461238 | 351929 | **31%** |
| &nbsp;&nbsp;Uchucchacua | &nbsp;&nbsp;Ore Grade | % | 2.80 | 3.05 | **-8%** | 2.57 | 3.37 | **-24%** |
| &nbsp;&nbsp;Uchucchacua | &nbsp;&nbsp;Recovery Rate | % | 91.11 | 91.57 | **0%** | 90.61 | 91.21 | **-1%** |
| &nbsp;&nbsp;Uchucchacua | &nbsp;&nbsp;MT Produced | MT | 4055 | 3865 | **5%** | 10752 | 10812 | **-1%** |
| &nbsp;&nbsp;Julcani <br> Pb - Ag | &nbsp;&nbsp;Ore Milled | DMT | 16433 | 11661 | **41%** | 43709 | 55455 | **-21%** |
| &nbsp;&nbsp;Julcani <br> Pb - Ag | &nbsp;&nbsp;Ore Grade | % | 1.25 | 0.98 | **27%** | 1.15 | 1.17 | **-2%** |
| &nbsp;&nbsp;Julcani <br> Pb - Ag | &nbsp;&nbsp;Recovery Rate | % | 94.15 | 94.89 | **-1%** | 94.38 | 95.09 | **-1%** |
| &nbsp;&nbsp;Julcani <br> Pb - Ag | &nbsp;&nbsp;Ounces Produced\* | MT | 193 | 108 | **78%** | 474 | 619 | **-23%** |
| &nbsp;&nbsp;**Open Pit** |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;Tajo Norte<br> Pb - Zn | &nbsp;&nbsp;Ore Milled | DMT | 123353 |  | **N.A.** | 123353 |  | **N.A.** |
| &nbsp;&nbsp;Tajo Norte<br> Pb - Zn | &nbsp;&nbsp;Ore Grade | % | 1.01 |  | **N.A.** | 1.01 |  | **N.A.** |
| &nbsp;&nbsp;Tajo Norte<br> Pb - Zn | &nbsp;&nbsp;Recovery Rate | % | 9.17 |  | **N.A.** | 9.17 |  | **N.A.** |
| &nbsp;&nbsp;Tajo Norte<br> Pb - Zn | &nbsp;&nbsp;MT Produced | MT | 114 |  | **N.A.** | 114 |  | **N.A.** |
| &nbsp;&nbsp;&nbsp;**Zinc Production** | &nbsp;&nbsp;&nbsp;**Zinc Production** |  |  |  |  |  |  |  |
| &nbsp;&nbsp;**Mining Unit** | &nbsp;&nbsp;**Operating Results** | **Unit** | **3Q25** | **3Q24** | **△%** | **9M25** | **9M24** | **△ %** |
| &nbsp;&nbsp;**Underground** |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;Tambomayo | &nbsp;&nbsp;Ore Milled | DMT | 118484 | 146457 | **-19%** | 274715 | 427016 | **-36%** |
| &nbsp;&nbsp;Tambomayo | &nbsp;&nbsp;Ore Grade | % | 0.84 | 1.13 | **-25%** | 1.08 | 1.23 | **-12%** |
| &nbsp;&nbsp;Tambomayo | &nbsp;&nbsp;Recovery Rate | % | 59.59 | 73.87 | **-19%** | 67.64 | 77.11 | **-12%** |
| &nbsp;&nbsp;Tambomayo | &nbsp;&nbsp;MT Produced | MT | 594 | 1222 | **-51%** | 2000 | 4034 | **-50%** |
| &nbsp;&nbsp;Uchucchacua | &nbsp;&nbsp;Ore Milled | DMT | 159153 | 138469 | **15%** | 461238 | 351929 | **31%** |
| &nbsp;&nbsp;Uchucchacua | &nbsp;&nbsp;Ore Grade | % | 4.68 | 5.06 | **-8%** | 4.63 | 5.41 | **-14%** |
| &nbsp;&nbsp;Uchucchacua | &nbsp;&nbsp;Recovery Rate | % | 85.85 | 87.74 | **-2%** | 86.79 | 86.74 | **0%** |
| &nbsp;&nbsp;Uchucchacua | &nbsp;&nbsp;MT Produced | MT | 6395 | 6153 | **4%** | 18539 | 16521 | **12%** |
| &nbsp;&nbsp;**Open Pit** |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;Tajo Norte<br> Pb - Zn | &nbsp;&nbsp;Ore Milled | DMT | 123353 |  | **N.A.** | 123353 | 84369 | **46%** |
| &nbsp;&nbsp;Tajo Norte<br> Pb - Zn | &nbsp;&nbsp;Ore Grade | % | 0.24 |  | **N.A.** | 0.24 | 4.95 | **-95%** |
| &nbsp;&nbsp;Tajo Norte<br> Pb - Zn | &nbsp;&nbsp;Recovery Rate | % | 25.79 |  | **N.A.** | 25.79 | 47.52 | **-46%** |
| &nbsp;&nbsp;Tajo Norte<br> Pb - Zn | &nbsp;&nbsp;MT Produced | MT | 76 |  | **N.A.** | 76 | 1985 | **-96%** |
| &nbsp;&nbsp;&nbsp;**Copper Production** | &nbsp;&nbsp;&nbsp;**Copper Production** |  |  |  |  |  |  |  |
| &nbsp;&nbsp;**Mining Unit** | &nbsp;&nbsp;**Operating Results** | **Unit** | **3Q25** | **3Q24** | **△%** | **9M25** | **9M24** | **△ %** |
| &nbsp;&nbsp;**Underground** |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;Marcapunta | &nbsp;&nbsp;Ore Milled | DMT | 976139 | 1223279 | **-20%** | 3023547 | 2963932 | **2%** |
| &nbsp;&nbsp;Marcapunta | &nbsp;&nbsp;Ore Grade | % | 1.46 | 1.57 | **-7%** | 1.43 | 1.55 | **-8%** |
| &nbsp;&nbsp;Marcapunta | &nbsp;&nbsp;Recovery Rate | % | 88.31 | 87.13 | **1%** | 87.57 | 85.83 | **2%** |
| &nbsp;&nbsp;Marcapunta | &nbsp;&nbsp;MT Produced | MT | 12621 | 16769 | **-25%** | 37763 | 39328 | **-4%** |
| &nbsp;&nbsp;Julcani <br> Pb - Ag | &nbsp;&nbsp;MT Produced | MT | 30 | 21 | **47%** | 76 | 114 | **-34%** |
| &nbsp;&nbsp;Julcani <br> Cu - Au | &nbsp;&nbsp;MT Produced | MT | 96 | 90 | **6%** | 272 | 174 | **56%** |
| &nbsp;&nbsp;Tambomayo | &nbsp;&nbsp;MT Produced | MT | 23 | 32 | **-29%** | 52 | 94 | **-45%** |
| &nbsp;&nbsp;**Open Pit** |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;Tajo Norte<br> Cu - Ag | &nbsp;&nbsp;Ore Milled | DMT |  |  | **N.A.** |  | 209668 | **N.A.** |
| &nbsp;&nbsp;Tajo Norte<br> Cu - Ag | &nbsp;&nbsp;Ore Grade | % |  |  | **N.A.** |  | 2.52 | **N.A.** |
| &nbsp;&nbsp;Tajo Norte<br> Cu - Ag | &nbsp;&nbsp;Recovery Rate | % |  |  | **N.A.** |  | 56.79 | **N.A.** |
| &nbsp;&nbsp;Tajo Norte<br> Cu - Ag | &nbsp;&nbsp;MT Produced | MT |  |  | **N.A.** |  | 3006 | **N.A.** |

---

**APPENDIX 3: Adjusted EBITDA Reconciliation (in thousand US$)**

**EBITDA RECONCILIATION (in thousand US$)**

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **3Q25** | **3Q24** | **9M25** | **9M24** |
| Net Income | 178999 | 244426 | 424158 | 385853 |
| **Add / Substract:** | **23101** | **100991** | **34325** | **161263** |
| Depreciation and Amortization in cost of sales | 31569 | 43815 | 86986 | 119717 |
| Provision (credit) for income tax, net | 41627 | 98141 | 101793 | 127227 |
| Interest expense | 20520 | 13100 | 59922 | 42508 |
| Loss (gain) on currency exchange difference | -11605 | -18369 | -45541 | 572 |
| Provision of bonuses and compensations | 5883 | 4856 | 16801 | 14309 |
| Loss (gain) from discontinued operations | 224 | 1459 | 3689 | 1521 |
| Workers' participation provision | 6542 | 5850 | 13188 | 9021 |
| Depreciation and amortization in administration expenses | 411 | 589 | 1236 | 1343 |
| Depreciation and Amortization in other, net | 15 | 15 | 39 | 40 |
| Provision (reversal) for contingencies | 1075 | 1245 | 752 | 1878 |
| Share in associated companies by the equity method, net | -71115 | -48664 | -187060 | -150189 |
| Write-off of fixed assets | 0 | 1165 | 3116 | 3172 |
| Impairment (reversal) of inventories | 1236 | -401 | -747 | -4292 |
| Interest income | -4338 | -3654 | -20906 | -7627 |
| Changes in provision of exploration activities | 1057 | 1990 | 2111 | 2209 |
| Change in enviromental liabilities provision | 0 | -146 | -1054 | -146 |
| **EBITDA Buenaventura Direct Operations** | **202100** | **136517** | **458483** | **338216** |
| **EBITDA Cerro Verde (19.58%)** | 131453 | 105458 | 347961 | 315409 |
| **EBITDA Coimolache (40.095%)** | 11918 | 86 | 30813 | 11084 |
| **EBITDA Buenaventura + All Associates** | **345471** | **242061** | **837257** | **664710** |

---

\*Cerro Verde's EBITDA accounts for D&A related to the capitalization of the stripping.

**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 (Cerro Verde), plus (2) 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.

**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.

Operations' Cost applicable to sales does not include operating cost for those months during which Buenaventura's operations were suspended due to COVID-19, as these have been classified as "Unabsorbed costs due to production stoppage" within the financial statements.

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 twelve months ended December 31, 2022 and 2021 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 twelve months ended December 31, 2021 and 2022 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.

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

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | &nbsp;&nbsp;**For the 3 months ended<br> September 30** | &nbsp;&nbsp;**For the 3 months ended<br> September 30** | &nbsp;&nbsp;**For the 6 months ended<br> September 30** | &nbsp;&nbsp;**For the 6 months ended<br> September 30** |
|  | &nbsp;&nbsp;**2025** | &nbsp;&nbsp;**2024** | &nbsp;&nbsp;**2025** | &nbsp;&nbsp;**2024** |
|  | &nbsp;&nbsp;**(in thousands of US$)** | &nbsp;&nbsp;**(in thousands of US$)** | &nbsp;&nbsp;**(in thousands of US$)** | &nbsp;&nbsp;**(in thousands of US$)** |
| &nbsp;&nbsp;Consolidated Cost of sales and services excluding depreciation and amortization | &nbsp;&nbsp;187354 | &nbsp;&nbsp;154399 | &nbsp;&nbsp;531584 | &nbsp;&nbsp;402017 |
| &nbsp;&nbsp;**Add:** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Consolidated Exploration in units in operation | &nbsp;&nbsp;12518 | &nbsp;&nbsp;13703 | &nbsp;&nbsp;36231 | &nbsp;&nbsp;35808 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Consolidated Commercial deductions | &nbsp;&nbsp;30409 | &nbsp;&nbsp;49738 | &nbsp;&nbsp;86296 | &nbsp;&nbsp;131352 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Consolidated Selling expenses | &nbsp;&nbsp;8436 | &nbsp;&nbsp;7003 | &nbsp;&nbsp;20284 | &nbsp;&nbsp;18670 |
| &nbsp;&nbsp;**Consolidated Cost applicable to sales** | &nbsp;&nbsp;**238717** | &nbsp;&nbsp;**224843** | &nbsp;&nbsp;**674395** | &nbsp;&nbsp;**587847** |

---

Note: For this calculation, the account Consolidated Cost of Sales and Services Excluding Depreciation and Amortization includes the line items Consolidated Cost of Sales Excluding Depreciation and Amortization, which comprises the costs of both the mining units and Buenaventura Trading, and Consolidated Cost of Services Excluding Depreciation and Amortization.

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

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | &nbsp;&nbsp;**For the 3 months ended<br> September 30** | &nbsp;&nbsp;**For the 3 months ended<br> September 30** | &nbsp;&nbsp;**For the 6 months ended <br> September 30** | &nbsp;&nbsp;**For the 6 months ended <br> September 30** |
|  | &nbsp;&nbsp;**2025** | &nbsp;&nbsp;**2024** | &nbsp;&nbsp;**2025** | &nbsp;&nbsp;**2024** |
| &nbsp;&nbsp;**<u>Cost of sales by mine and mineral</u>** | &nbsp;&nbsp;**(in thousands of US$)** | &nbsp;&nbsp;**(in thousands of US$)** | &nbsp;&nbsp;**(in thousands of US$)** | &nbsp;&nbsp;**(in thousands of US$)** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julcani, Gold | &nbsp;&nbsp;3577 | &nbsp;&nbsp;2492 | &nbsp;&nbsp;9890 | &nbsp;&nbsp;3949 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julcani, Silver | &nbsp;&nbsp;6687 | &nbsp;&nbsp;5998 | &nbsp;&nbsp;17820 | &nbsp;&nbsp;19543 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julcani, Lead | &nbsp;&nbsp;160 | &nbsp;&nbsp;154 | &nbsp;&nbsp;426 | &nbsp;&nbsp;792 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julcani, Copper | &nbsp;&nbsp;72 | &nbsp;&nbsp;113 | &nbsp;&nbsp;182 | &nbsp;&nbsp;449 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Orcopampa, Gold | &nbsp;&nbsp;18626 | &nbsp;&nbsp;20039 | &nbsp;&nbsp;57638 | &nbsp;&nbsp;56444 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Orcopampa, Silver | &nbsp;&nbsp;65 | &nbsp;&nbsp;133 | &nbsp;&nbsp;268 | &nbsp;&nbsp;273 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Orcopampa, Copper | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Uchucchacua/Yumpag, Gold | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Uchucchacua/Yumpag, Silver | &nbsp;&nbsp;30884 | &nbsp;&nbsp;28341 | &nbsp;&nbsp;89389 | &nbsp;&nbsp;62087 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Uchucchacua/Yumpag, Lead | &nbsp;&nbsp;1994 | &nbsp;&nbsp;2499 | &nbsp;&nbsp;6105 | &nbsp;&nbsp;6264 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Uchucchacua/Yumpag, Zinc | &nbsp;&nbsp;4171 | &nbsp;&nbsp;4887 | &nbsp;&nbsp;13139 | &nbsp;&nbsp;11282 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Gold | &nbsp;&nbsp;11162 | &nbsp;&nbsp;9296 | &nbsp;&nbsp;24354 | &nbsp;&nbsp;29083 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Silver | &nbsp;&nbsp;9886 | &nbsp;&nbsp;6263 | &nbsp;&nbsp;19272 | &nbsp;&nbsp;15513 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Zinc | &nbsp;&nbsp;633 | &nbsp;&nbsp;917 | &nbsp;&nbsp;2935 | &nbsp;&nbsp;4074 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Lead | &nbsp;&nbsp;810 | &nbsp;&nbsp;1374 | &nbsp;&nbsp;2062 | &nbsp;&nbsp;3030 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Copper | &nbsp;&nbsp;655 | &nbsp;&nbsp;149 | &nbsp;&nbsp;2088 | &nbsp;&nbsp;492 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;La Zanja, Gold | &nbsp;&nbsp;7582 | &nbsp;&nbsp;3785 | &nbsp;&nbsp;27498 | &nbsp;&nbsp;10519 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;La Zanja, Silver | &nbsp;&nbsp;390 | &nbsp;&nbsp;157 | &nbsp;&nbsp;1498 | &nbsp;&nbsp;470 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Gold | &nbsp;&nbsp;3825 | &nbsp;&nbsp;3827 | &nbsp;&nbsp;12106 | &nbsp;&nbsp;9943 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Silver | &nbsp;&nbsp;8892 | &nbsp;&nbsp;4968 | &nbsp;&nbsp;19314 | &nbsp;&nbsp;15105 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Lead | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Zinc | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;1508 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Copper | &nbsp;&nbsp;48328 | &nbsp;&nbsp;57656 | &nbsp;&nbsp;150221 | &nbsp;&nbsp;146274 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Buenaventura Trading, Silver | &nbsp;&nbsp;846 | &nbsp;&nbsp;0 | &nbsp;&nbsp;2209 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Buenaventura Trading, Copper | &nbsp;&nbsp;22900 | &nbsp;&nbsp;0 | &nbsp;&nbsp;64790 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non Mining Units | &nbsp;&nbsp;5210 | &nbsp;&nbsp;1350 | &nbsp;&nbsp;8380 | &nbsp;&nbsp;4923 |
| &nbsp;&nbsp;**Consolidated Cost of sales, excluding depreciation and amortization** | &nbsp;&nbsp;**187354** | &nbsp;&nbsp;**154399** | &nbsp;&nbsp;**531584** | &nbsp;&nbsp;**402017** |

---

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

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | &nbsp;&nbsp;**For the 3 months ended<br> September 30** | &nbsp;&nbsp;**For the 3 months ended<br> September 30** | &nbsp;&nbsp;**For the 6 months ended<br> September 30** | &nbsp;&nbsp;**For the 6 months ended<br> September 30** |
|  | &nbsp;&nbsp;**2025** | &nbsp;&nbsp;**2024** | &nbsp;&nbsp;**2025** | &nbsp;&nbsp;**2024** |
| &nbsp;&nbsp;**<u>Exploration expenses in units in operation by mine and mineral</u>** | &nbsp;&nbsp;**(in thousands of US$)** | &nbsp;&nbsp;**(in thousands of US$)** | &nbsp;&nbsp;**(in thousands of US$)** | &nbsp;&nbsp;**(in thousands of US$)** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julcani, Gold | &nbsp;&nbsp;725 | &nbsp;&nbsp;920 | &nbsp;&nbsp;2318 | &nbsp;&nbsp;1419 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julcani, Silver | &nbsp;&nbsp;1356 | &nbsp;&nbsp;2213 | &nbsp;&nbsp;4177 | &nbsp;&nbsp;7025 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julcani, Lead | &nbsp;&nbsp;32 | &nbsp;&nbsp;57 | &nbsp;&nbsp;100 | &nbsp;&nbsp;285 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julcani, Copper | &nbsp;&nbsp;15 | &nbsp;&nbsp;42 | &nbsp;&nbsp;43 | &nbsp;&nbsp;161 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Orcopampa, Gold | &nbsp;&nbsp;2032 | &nbsp;&nbsp;2015 | &nbsp;&nbsp;4705 | &nbsp;&nbsp;5911 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Orcopampa, Silver | &nbsp;&nbsp;7 | &nbsp;&nbsp;13 | &nbsp;&nbsp;22 | &nbsp;&nbsp;29 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Orcopampa, Copper | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Uchucchacua/Yumpag, Gold | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Uchucchacua/Yumpag, Silver | &nbsp;&nbsp;4119 | &nbsp;&nbsp;3695 | &nbsp;&nbsp;10697 | &nbsp;&nbsp;8520 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Uchucchacua/Yumpag, Lead | &nbsp;&nbsp;266 | &nbsp;&nbsp;326 | &nbsp;&nbsp;731 | &nbsp;&nbsp;860 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Uchucchacua/Yumpag, Zinc | &nbsp;&nbsp;556 | &nbsp;&nbsp;637 | &nbsp;&nbsp;1572 | &nbsp;&nbsp;1548 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Gold | &nbsp;&nbsp;725 | &nbsp;&nbsp;604 | &nbsp;&nbsp;1879 | &nbsp;&nbsp;1807 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Silver | &nbsp;&nbsp;642 | &nbsp;&nbsp;407 | &nbsp;&nbsp;1487 | &nbsp;&nbsp;964 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Lead | &nbsp;&nbsp;41 | &nbsp;&nbsp;60 | &nbsp;&nbsp;159 | &nbsp;&nbsp;188 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Zinc | &nbsp;&nbsp;53 | &nbsp;&nbsp;89 | &nbsp;&nbsp;226 | &nbsp;&nbsp;253 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Copper | &nbsp;&nbsp;43 | &nbsp;&nbsp;10 | &nbsp;&nbsp;161 | &nbsp;&nbsp;31 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;La Zanja, Gold | &nbsp;&nbsp;0 | &nbsp;&nbsp;60 | &nbsp;&nbsp;0 | &nbsp;&nbsp;108 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;La Zanja, Silver | &nbsp;&nbsp;0 | &nbsp;&nbsp;3 | &nbsp;&nbsp;0 | &nbsp;&nbsp;5 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Gold | &nbsp;&nbsp;119 | &nbsp;&nbsp;147 | &nbsp;&nbsp;530 | &nbsp;&nbsp;385 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Silver | &nbsp;&nbsp;278 | &nbsp;&nbsp;191 | &nbsp;&nbsp;846 | &nbsp;&nbsp;585 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Lead | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Zinc | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;58 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Copper | &nbsp;&nbsp;1509 | &nbsp;&nbsp;2214 | &nbsp;&nbsp;6579 | &nbsp;&nbsp;5666 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Buenaventura Trading, Silver | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Buenaventura Trading, Copper | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non Mining Units | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;**Consolidated Exploration expenses in units in operation** | &nbsp;&nbsp;**12518** | &nbsp;&nbsp;**13703** | &nbsp;&nbsp;**36231** | &nbsp;&nbsp;**35808** |

---

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

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | &nbsp;&nbsp;**For the 3 months ended<br> September 30** | &nbsp;&nbsp;**For the 3 months ended<br> September 30** | &nbsp;&nbsp;**For the 6 months ended <br> September 30** | &nbsp;&nbsp;**For the 6 months ended <br> September 30** |
|  | &nbsp;&nbsp;**2025** | &nbsp;&nbsp;**2024** | &nbsp;&nbsp;**2025** | &nbsp;&nbsp;**2024** |
| &nbsp;&nbsp;**<u>Commercial Deductions in units in operation by mine and mineral</u>** | &nbsp;&nbsp;**(in thousands of US$)** | &nbsp;&nbsp;**(in thousands of US$)** | &nbsp;&nbsp;**(in thousands of US$)** | &nbsp;&nbsp;**(in thousands of US$)** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julcani, Gold | &nbsp;&nbsp;38 | &nbsp;&nbsp;137 | &nbsp;&nbsp;117 | &nbsp;&nbsp;313 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julcani, Silver | &nbsp;&nbsp;385 | &nbsp;&nbsp;376 | &nbsp;&nbsp;770 | &nbsp;&nbsp;1446 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julcani, Lead | &nbsp;&nbsp;13 | &nbsp;&nbsp;11 | &nbsp;&nbsp;23 | &nbsp;&nbsp;56 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julcani, Copper | &nbsp;&nbsp;6 | &nbsp;&nbsp;7 | &nbsp;&nbsp;10 | &nbsp;&nbsp;40 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Orcopampa, Gold | &nbsp;&nbsp;-16 | &nbsp;&nbsp;183 | &nbsp;&nbsp;19 | &nbsp;&nbsp;484 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Orcopampa, Silver | &nbsp;&nbsp;0 | &nbsp;&nbsp;2 | &nbsp;&nbsp;0 | &nbsp;&nbsp;3 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Orcopampa, Copper | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Uchucchacua/Yumpag, Gold | &nbsp;&nbsp;1 | &nbsp;&nbsp;0 | &nbsp;&nbsp;1 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Uchucchacua/Yumpag, Silver | &nbsp;&nbsp;4122 | &nbsp;&nbsp;5824 | &nbsp;&nbsp;8417 | &nbsp;&nbsp;15747 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Uchucchacua/Yumpag, Lead | &nbsp;&nbsp;103 | &nbsp;&nbsp;877 | &nbsp;&nbsp;414 | &nbsp;&nbsp;2439 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Uchucchacua/Yumpag, Zinc | &nbsp;&nbsp;833 | &nbsp;&nbsp;3720 | &nbsp;&nbsp;1408 | &nbsp;&nbsp;9232 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Gold | &nbsp;&nbsp;510 | &nbsp;&nbsp;625 | &nbsp;&nbsp;1233 | &nbsp;&nbsp;2407 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Silver | &nbsp;&nbsp;635 | &nbsp;&nbsp;576 | &nbsp;&nbsp;1191 | &nbsp;&nbsp;1715 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Lead | &nbsp;&nbsp;30 | &nbsp;&nbsp;74 | &nbsp;&nbsp;107 | &nbsp;&nbsp;275 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Zinc | &nbsp;&nbsp;286 | &nbsp;&nbsp;600 | &nbsp;&nbsp;969 | &nbsp;&nbsp;1884 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Copper | &nbsp;&nbsp;28 | &nbsp;&nbsp;7 | &nbsp;&nbsp;95 | &nbsp;&nbsp;23 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;La Zanja, Gold | &nbsp;&nbsp;12 | &nbsp;&nbsp;15 | &nbsp;&nbsp;85 | &nbsp;&nbsp;45 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;La Zanja, Silver | &nbsp;&nbsp;1 | &nbsp;&nbsp;0 | &nbsp;&nbsp;4 | &nbsp;&nbsp;3 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Gold | &nbsp;&nbsp;1564 | &nbsp;&nbsp;2121 | &nbsp;&nbsp;4846 | &nbsp;&nbsp;5603 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Silver | &nbsp;&nbsp;2403 | &nbsp;&nbsp;2715 | &nbsp;&nbsp;6522 | &nbsp;&nbsp;8124 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Lead | &nbsp;&nbsp;0 | &nbsp;&nbsp;-13 | &nbsp;&nbsp;1 | &nbsp;&nbsp;-49 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Zinc | &nbsp;&nbsp;0 | &nbsp;&nbsp;126 | &nbsp;&nbsp;-13 | &nbsp;&nbsp;1144 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Copper | &nbsp;&nbsp;20082 | &nbsp;&nbsp;31754 | &nbsp;&nbsp;61434 | &nbsp;&nbsp;80418 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Buenaventura Trading, Silver | &nbsp;&nbsp;-22 | &nbsp;&nbsp;0 | &nbsp;&nbsp;-45 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Buenaventura Trading, Copper | &nbsp;&nbsp;-603 | &nbsp;&nbsp;0 | &nbsp;&nbsp;-1312 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non Mining Units | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;**Consolidated Commercial deductions in units in operation** | &nbsp;&nbsp;**30409** | &nbsp;&nbsp;**49738** | &nbsp;&nbsp;**86296** | &nbsp;&nbsp;**131352** |

---

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

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | &nbsp;&nbsp;**For the 3 months ended<br> September 30** | &nbsp;&nbsp;**For the 3 months ended<br> September 30** | &nbsp;&nbsp;**For the 6 months ended<br> September 30** | &nbsp;&nbsp;**For the 6 months ended<br> September 30** |
|  | &nbsp;&nbsp;**2025** | &nbsp;&nbsp;**2024** | &nbsp;&nbsp;**2025** | &nbsp;&nbsp;**2024** |
| &nbsp;&nbsp;**<u>Selling expenses by mine and mineral</u>** | &nbsp;&nbsp;**(in thousands of US$)** | &nbsp;&nbsp;**(in thousands of US$)** | &nbsp;&nbsp;**(in thousands of US$)** | &nbsp;&nbsp;**(in thousands of US$)** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julcani, Gold | &nbsp;&nbsp;157 | &nbsp;&nbsp;81 | &nbsp;&nbsp;382 | &nbsp;&nbsp;101 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julcani, Silver | &nbsp;&nbsp;294 | &nbsp;&nbsp;194 | &nbsp;&nbsp;688 | &nbsp;&nbsp;499 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julcani, Lead | &nbsp;&nbsp;7 | &nbsp;&nbsp;5 | &nbsp;&nbsp;16 | &nbsp;&nbsp;20 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julcani, Copper | &nbsp;&nbsp;3 | &nbsp;&nbsp;4 | &nbsp;&nbsp;7 | &nbsp;&nbsp;11 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Orcopampa, Gold | &nbsp;&nbsp;132 | &nbsp;&nbsp;157 | &nbsp;&nbsp;455 | &nbsp;&nbsp;432 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Orcopampa, Silver | &nbsp;&nbsp;0 | &nbsp;&nbsp;1 | &nbsp;&nbsp;2 | &nbsp;&nbsp;2 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Orcopampa, Copper | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Uchucchacua/Yumpag, Gold | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Uchucchacua/Yumpag, Silver | &nbsp;&nbsp;3642 | &nbsp;&nbsp;1647 | &nbsp;&nbsp;7801 | &nbsp;&nbsp;3913 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Uchucchacua/Yumpag, Lead | &nbsp;&nbsp;235 | &nbsp;&nbsp;145 | &nbsp;&nbsp;533 | &nbsp;&nbsp;395 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Uchucchacua/Yumpag, Zinc | &nbsp;&nbsp;492 | &nbsp;&nbsp;284 | &nbsp;&nbsp;1147 | &nbsp;&nbsp;711 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Gold | &nbsp;&nbsp;208 | &nbsp;&nbsp;399 | &nbsp;&nbsp;327 | &nbsp;&nbsp;1308 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Silver | &nbsp;&nbsp;185 | &nbsp;&nbsp;269 | &nbsp;&nbsp;259 | &nbsp;&nbsp;698 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Lead | &nbsp;&nbsp;12 | &nbsp;&nbsp;39 | &nbsp;&nbsp;28 | &nbsp;&nbsp;136 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Zinc | &nbsp;&nbsp;15 | &nbsp;&nbsp;59 | &nbsp;&nbsp;39 | &nbsp;&nbsp;183 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tambomayo, Copper | &nbsp;&nbsp;12 | &nbsp;&nbsp;6 | &nbsp;&nbsp;28 | &nbsp;&nbsp;22 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;La Zanja, Gold | &nbsp;&nbsp;77 | &nbsp;&nbsp;205 | &nbsp;&nbsp;213 | &nbsp;&nbsp;415 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;La Zanja, Silver | &nbsp;&nbsp;4 | &nbsp;&nbsp;9 | &nbsp;&nbsp;12 | &nbsp;&nbsp;19 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Gold | &nbsp;&nbsp;145 | &nbsp;&nbsp;176 | &nbsp;&nbsp;472 | &nbsp;&nbsp;512 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Silver | &nbsp;&nbsp;338 | &nbsp;&nbsp;228 | &nbsp;&nbsp;753 | &nbsp;&nbsp;778 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Lead | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Zinc | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;78 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;El Brocal, Copper | &nbsp;&nbsp;1838 | &nbsp;&nbsp;2648 | &nbsp;&nbsp;5854 | &nbsp;&nbsp;7532 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Buenaventura Trading, Silver | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Buenaventura Trading, Copper | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non Mining Units | &nbsp;&nbsp;637 | &nbsp;&nbsp;448 | &nbsp;&nbsp;1268 | &nbsp;&nbsp;905 |
| &nbsp;&nbsp;**Consolidated Selling expenses** | &nbsp;&nbsp;**8436** | &nbsp;&nbsp;**7003** | &nbsp;&nbsp;**20284** | &nbsp;&nbsp;**18670** |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** |
|  | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** |
|  | **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) | 3577 | 6687 | 160 |  | 72 | 10495 | 2492 | 5998 | 154 |  | 113 | 8757 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) | 725 | 1356 | 32 |  | 15 | 2128 | 920 | 2213 | 57 |  | 42 | 3232 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) | 38 | 385 | 13 |  | 6 | 441 | 137 | 376 | 11 |  | 7 | 531 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) | 157 | 294.36 | 7.05 |  | 3 | 462 | 81 | 194 | 5 |  | 4 | 284 |
| **Cost Applicable to Sales (US$000)** | **4497** | **8722** | **212** | **-** | **95** | **13526** | **3630** | **8781** | **227** | **-** | **166** | **12804** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold | 2232 | 354445 | 178 |  | 16 | &nbsp;&nbsp;&nbsp; Not Applicable | 1293 | 248442 | 96 |  | 20 | &nbsp;&nbsp;&nbsp; Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **2014** | **24.61** | **1196** | **-** | **5981** | **Not Applicable** | **2808** | **35.34** | **2363** | **-** | **8443** | &nbsp;&nbsp;&nbsp; **Not Applicable** |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** | **JULCANI** |
|  | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** |
|  | **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) | 9890 | 17820 | 426 |  | 182 | 28318 | 3949 | 19543 | 792 |  | 449 | 24732 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) | 2318 | 4177 | 100 |  | 43 | 6637 | 1419 | 7025 | 285 |  | 161 | 8890 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) | 117 | 770 | 23 |  | 10 | 920 | 313 | 1446 | 56 |  | 40 | 1854 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) | 382 | 688 | 16 |  | 7 | 1094 | 101 | 499 | 20 |  | 11 | 632 |
| **Cost Applicable to Sales (US$000)** | **12706** | **23455** | **565** | **-** | **242** | **36969** | **5781** | **28514** | **1152** | **-** | **661** | **36109** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold | 5788 | 957142 | 425 |  | 37 | &nbsp;&nbsp;&nbsp; Not Applicable | 2527 | 1052051 | 562 |  | 79 | &nbsp;&nbsp;&nbsp; No Aplicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **2195** | **24.51** | **1331** | **-** | **6567** | &nbsp;&nbsp;&nbsp; **No Applicable** | **2288** | **27.10** | **2051** | **-** | **8320** | &nbsp;&nbsp;&nbsp; **No Applicable** |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** |
|  | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** |
|  | **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) | 18626 | 65 |  |  |  | 18691 | 20039 | 133 |  |  |  | 20172 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) | 2032 | 7 |  |  |  | 2039 | 2015 | 13 |  |  |  | 2028 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) | -16 | -0 |  |  |  | -16 | 183 | 2 |  |  |  | 185 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) | 132 | 0 |  |  |  | 132 | 157 | 1 |  |  |  | 158 |
| **Cost Applicable to Sales (US$000)** | **20774** | **72** | **-** | **-** | **-** | **20846** | **22393** | **150** | **-** | **-** | **-** | **22543** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold | 13776 | 4203 |  |  |  | &nbsp;&nbsp;&nbsp; Not Applicable | 18027 | 10031 |  |  |  | &nbsp;&nbsp;&nbsp; Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **1508** | **17.09** | **-** | **-** | **-** | &nbsp;&nbsp;&nbsp; **Not Applicable** | **1242** | **14.93** | **-** | **-** | **-** | &nbsp;&nbsp;&nbsp; **Not Applicable** |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** | **ORCOPAMPA** |
|  | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** |
|  | **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) | 57638 | 268 |  |  |  | 57906 | 56444 | 273 |  |  |  | 56717 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) | 4705 | 22 |  |  |  | 4727 | 5911 | 29 |  |  |  | 5940 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) | 19 | -0 |  |  |  | 19 | 484 | 3 |  |  |  | 487 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) | 455 | 2 |  |  |  | 457 | 432 | 2 |  |  |  | 434 |
| **Cost Applicable to Sales (US$000)** | **62817** | **292** | **-** | **-** | **-** | **63109** | **63271** | **307** | **-** | **-** | **-** | **63578** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold | 40680 | 17611 |  |  |  | &nbsp;&nbsp;&nbsp; Not Applicable | 54223 | 22174 |  |  |  | &nbsp;&nbsp;&nbsp; Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **1544** | **16.56** | **-** | **-** | **-** | &nbsp;&nbsp;&nbsp; **No Applicable** | **1167** | **13.84** | **-** | **-** | **-** | &nbsp;&nbsp;&nbsp; **No Applicable** |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** |
|  | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** |
|  | **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) |  | 30884 | 1994 | 4171 |  | 37049 |  | 28341 | 2499 | 4887 |  | 35726 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) |  | 4119 | 266 | 556 |  | 4941 |  | 3695 | 326 | 637 |  | 4658 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) | 1 | 4122 | 103 | 833 |  | 5059 |  | 5824 | 877 | 3720 |  | 10421 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) |  | 3642 | 235 | 492 |  | 4369 |  | 1647 | 145 | 284 |  | 2076 |
| **Cost Applicable to Sales (US$000)** | **-** | **42767** | **2598** | **6052** | **-** | **51418** | **-** | **39507** | **3847** | **9528** | **-** | **52882** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold |  | 2860471 | 3940 | 5563 |  | &nbsp;&nbsp;&nbsp; Not Applicable |  | 2784161 | 3510 | 5026 |  | &nbsp;&nbsp;&nbsp; Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **-** | **14.95** | **659** | **1088** | **-** | &nbsp;&nbsp;&nbsp; **No Applicable** | **-** | **14.19** | **1096** | **1896** | **-** | &nbsp;&nbsp;&nbsp; **No Applicable** |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** | **UCHUCCHACUA/YUMPAG** |
|  | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** |
|  | **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) |  | 89389 | 6105 | 13139 |  | 108633 |  | 62087 | 6264 | 11282 |  | 79633 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) |  | 10697 | 731 | 1572 |  | 13000 |  | 8520 | 860 | 1548 |  | 10928 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) | 1 | 8417 | 414 | 1408 |  | 10240 |  | 15747 | 2439 | 9232 |  | 27419 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) |  | 7801 | 533 | 1147 |  | 9480 |  | 3913 | 395 | 711 |  | 5019 |
| **Cost Applicable to Sales (US$000)** | **1** | **116304** | **7782** | **17265** | **-** | **141353** | **-** | **90268** | **9958** | **22773** | **-** | **122999** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold |  | 8162160 | 10427 | 15754 |  | &nbsp;&nbsp;&nbsp; Not Applicable |  | 7131489 | 9807 | 13593 |  | &nbsp;&nbsp;&nbsp; Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **-** | **14.25** | **746** | **1096** | **-** | &nbsp;&nbsp;&nbsp; **No Applicable** | **-** | **12.66** | **1015** | **1675** | **-** | &nbsp;&nbsp;&nbsp; **No Applicable** |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** |
|  | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** |
|  | **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) | 11162 | 9886 | 633 | 810 | 655 | 23146 | 9296 | 6263 | 917 | 1374 | 149 | 17999 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) | 725 | 642 | 41 | 53 | 43 | 1504 | 604 | 407 | 60 | 89 | 10 | 1169 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) | 510 | 635 | 30 | 286 | 28 | 1488 | 625 | 576 | 74 | 600 | 7 | 1882 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) | 208 | 185 | 12 | 15 | 12 | 432 | 399 | 269 | 39 | 59 | 6 | 772 |
| **Cost Applicable to Sales (US$000)** | **12605** | **11348** | **716** | **1163** | **738** | **26570** | **10924** | **7514** | **1090** | **2122** | **172** | **21822** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold | 4564 | 347563 | 469 | 409 | 104 | &nbsp;&nbsp;&nbsp; Not Applicable | 7438 | 402631 | 849 | 969 | 32 | &nbsp;&nbsp;&nbsp; Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **2762** | **32.65** | **1528** | **2841** | **7101** | &nbsp;&nbsp;&nbsp; **No Applicable** | **1469** | **18.66** | **1283** | **2190** | **5463** | &nbsp;&nbsp;&nbsp; **No Applicable** |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** | **TAMBOMAYO** |
|  | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** |
|  | **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) | 24354 | 19272 | 2062 | 2935 | 2088 | 50711 | 29083 | 15513 | 3030 | 4074 | 492 | 52191 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) | 1879 | 1487 | 159 | 226 | 161 | 3912 | 1807 | 964 | 188 | 253 | 31 | 3242 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) | 1233 | 1191 | 107 | 969 | 95 | 3595 | 2407 | 1715 | 275 | 1884 | 23 | 6303 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) | 327 | 259 | 28 | 39 | 28 | 681 | 1308 | 698 | 136 | 183 | 22 | 2347 |
| **Cost Applicable to Sales (US$000)** | **27792** | **22209** | **2356** | **4171** | **2372** | **58899** | **34604** | **18888** | **3629** | **6394** | **567** | **64083** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold | 9849 | 663409 | 1489 | 1513 | 283 | &nbsp;&nbsp;&nbsp; Not Applicable | 24199 | 1035689 | 2692 | 3231 | 95 | &nbsp;&nbsp;&nbsp; Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **2822** | **33.48** | **1582** | **2757** | **8385** | &nbsp;&nbsp;&nbsp; **No Applicable** | &nbsp;&nbsp;&nbsp; **1430** | &nbsp;&nbsp;&nbsp;**18.24** | &nbsp;&nbsp;&nbsp;**1348** | &nbsp;&nbsp;&nbsp;**1979** | &nbsp;&nbsp;&nbsp; **5976** | &nbsp;&nbsp;&nbsp; **Not Applicable** |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** |
|  | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** |
|  | **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) | 7582 | 390 |  |  |  | 7972 | 3785 | 157 |  |  |  | 3942 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) |  |  |  |  |  |  | 60 | 3 |  |  |  | 63 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) | 12 | 1 |  |  |  | 13 | 15 | 0 |  |  |  | 15 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) | 77 | 4 |  |  |  | 81 | 205 | 9 |  |  |  | 214 |
| **Cost Applicable to Sales (US$000)** | **7671** | **395** | **-** | **-** | **-** | **8066** | **4066** | **169** | **-** | **-** | **-** | **4235** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold | 4910 | 21775 |  |  |  | &nbsp;&nbsp;&nbsp; Not Applicable | 4676 | 16450 |  |  |  | &nbsp;&nbsp;&nbsp; Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **1562** | **18.13** | **-** | **-** | **-** | &nbsp;&nbsp;&nbsp; **Not Applicable** | **870** | **10.25** | **-** | **-** | **-** | &nbsp;&nbsp;&nbsp; **Not Applicable** |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** | **LA ZANJA** |
|  | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** |
|  | **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) | 27498 | 1498 |  |  |  | 28996 | 10519 | 470 |  |  |  | 10989 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) |  |  |  |  |  |  | 108 | 5 |  |  |  | 113 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) | 85 | 4 |  |  |  | 89 | 45 | 3 |  |  |  | 48 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) | 213 | 12 |  |  |  | 225 | 415 | 19 |  |  |  | 434 |
| **Cost Applicable to Sales (US$000)** | **27796** | **1514** | **-** | **-** | **-** | **29310** | **11088** | **496** | **-** | **-** | **-** | **11584** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold | 13877 | 68177 |  |  |  | &nbsp;&nbsp;&nbsp; Not Applicable | 8525 | 32140 |  |  |  | &nbsp;&nbsp;&nbsp; Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **2003** | **22.20** | **-** | **-** | **-** | &nbsp;&nbsp;&nbsp; **No Applicable** | **1301** | **15.44** | **-** | **-** | **-** | &nbsp;&nbsp;&nbsp; **Not Applicable** |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** |
|  | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** |
|  | **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) | 3825 | 8892 |  |  | 48328 | 61045 | 3827 | 4968 |  |  | 57656 | 66451 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) | 119 | 278 |  |  | 1509 | 1906 | 147 | 191 |  |  | 2214 | 2552 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) | 1564 | 2403 |  |  | 20082 | 24049 | 2121 | 2715 | -13 | 126 | 31754 | 36703 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) | 145 | 338 |  |  | 1838 | 2322 | 176 | 228 |  |  | 2648 | 3052 |
| **Cost Applicable to Sales (US$000)** | **5654** | **11911** | **-** | **-** | **71757** | **89322** | **6271** | **8102** | -13 | 126 | **94273** | **108759** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold | 2555 | 513067 |  |  | 11813 | &nbsp;&nbsp;&nbsp; Not Applicable | 3912 | 413407 |  |  | 15571 | &nbsp;&nbsp;&nbsp; Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **2213** | **23.22** | **-** | **-** | **6074** | &nbsp;&nbsp;&nbsp; **Not Applicable** | **1603** | **19.60** | **-** | **-** | **6054** | &nbsp;&nbsp;&nbsp; **Not Applicable** |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** | **BROCAL** |
|  | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** |
|  | **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) | 12106 | 19314 |  |  | 150221 | 181641 | 9943 | 15105 |  | 1508 | 146274 | 172830 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) | 530 | 846 |  |  | 6579 | 7955 | 385 | 585 |  | 58 | 5666 | 6695 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) | 4846 | 6522 | 1 | -13 | 61434 | 72790 | 5603 | 8124 | -49 | 1144 | 80418 | 95240 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) | 472 | 753 |  |  | 5854 | 7078 | 512 | 778 |  | 78 | 7532 | 8899 |
| **Cost Applicable to Sales (US$000)** | **17954** | **27434** | **1** | **-13** | **224088** | **269464** | **16443** | **24592** | -49 | **2788** | **239890** | **283664** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold | 8468 | 1182210 |  |  | 35577 | &nbsp;&nbsp;&nbsp; Not Applicable | 10676 | 1403306 | 72 | 1592 | 39709 | &nbsp;&nbsp;&nbsp; Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **2120** | **23.21** | **-** | **-** | **6299** | &nbsp;&nbsp;&nbsp; **No Applicable** | **1540** | **17.52** | **-** | **1751** | **6041** | &nbsp;&nbsp;&nbsp; **Not Applicable** |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** |
|  | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** |
|  | **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) |  | 846 |  |  | 22900 | 23746 |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) |  | -22 |  |  | -603 | -625 |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) |  |  |  |  |  |  |  |  |  |  |  |  |
| **Cost Applicable to Sales (US$000)** | **-** | **825** | **-** | **-** | **22296** | **23121** | **-** | **-** | **-** | **-** | **-** | **-** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold |  | 20108 |  |  | 2289 | &nbsp;&nbsp;&nbsp; Not Applicable |  |  |  |  |  | &nbsp;&nbsp;&nbsp; Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **-** | **41.01** | **-** | **-** | **9739** | &nbsp;&nbsp;&nbsp; **Not Applicable** | **-** | **-** | **-** | **-** | **-** | &nbsp;&nbsp;&nbsp; **Not Applicable** |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** | **Buenaventura Trading** |
|  | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** |
|  | **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) |  | 2209 |  |  | 64790 | 66999 |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) |  | -45 |  |  | -1312 | -1357 |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) |  |  |  |  |  |  |  |  |  |  |  |  |
| **Cost Applicable to Sales (US$000)** | **-** | **2164** | **-** | **-** | **63478** | **65642** | **-** | **-** | **-** | **-** | **-** | **-** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold |  | 59559 |  |  | 6584 | &nbsp;&nbsp;&nbsp; Not Applicable |  |  |  |  |  | &nbsp;&nbsp;&nbsp; Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **-** | **36.34** | **-** | **-** | **9641** | &nbsp;&nbsp;&nbsp; **No Applicable** | **-** | **-** | **-** | **-** | **-** | &nbsp;&nbsp;&nbsp; **Not Applicable** |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** |
|  | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** |
|  | **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) |  |  |  |  |  | 4165 |  |  |  |  |  | 1632 |
| Cost of Services (without D&A) (US$000) |  |  |  |  |  | 1045 |  |  |  |  |  | -282 |
| **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) |  |  |  |  |  | 637 |  |  |  |  |  | 448 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total (US$000) |  |  |  |  |  | 5847 |  |  |  |  |  | 1798 |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** | **NON MINING COMPANIES** |
|  | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** |
|  | **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) |  |  |  |  |  | 4888 |  |  |  |  |  | 2631 |
| Cost of Services (without D&A) (US$000) |  |  |  |  |  | 3492 |  |  |  |  |  | 2292 |
| **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) |  |  |  |  |  | 1268 |  |  |  |  |  | 905 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total (US$000) |  |  |  |  |  | 9648 |  |  |  |  |  | 5828 |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** |
|  | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** |
|  | **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) | 44772 | 56803 | 2788 | 4981 | 49055 | 186309 | 39440 | 45860 | 3570 | 6261 | 57918 | 154681 |
| Cost of Services (without D&A) (US$000) |  |  |  |  |  | 1045 |  |  |  |  |  | -282 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) | 3602 | 6402 | 340 | 609 | 1566 | 12518 | 3746 | 6522 | 442 | 726 | 2266 | 13702 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) | 2108 | 7545 | 146 | 1118 | 20116 | 30409 | 3081 | 9493 | 949 | 4446 | 31769 | 49738 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) | 720 | 4463 | 254 | 507 | 1854 | 7798 | 1018 | 2348 | 190 | 343 | 2658 | 6556 |
| **Cost Applicable to Sales (US$000)** | **51200** | **75214** | **3527** | **7215** | **72590** | **238716** | **47284** | **64222** | **5151** | **11776** | **94611** | **224843** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold | 28038 | 4101524 | 4586 | 5973 | 11933 | &nbsp;&nbsp;&nbsp; Not Applicable | 35345 | 3875123 | 4455 | 5995 | 15622 | &nbsp;&nbsp;&nbsp; Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **1826** | **18.34** | **769** | **1208** | **6083** | &nbsp;&nbsp;&nbsp; **Not Applicable** | **1338** | **16.57** | **1156** | **1964** | **6056** | &nbsp;&nbsp;&nbsp; **Not Applicable** |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** | **BUENAVENTURA CONSOLIDATED** |
|  | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** |
|  | **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) | 131486 | 147561 | 8593 | 16074 | 152491 | 528092 | 109937 | 112992 | 10086 | 16863 | 147215 | 399723 |
| Cost of Services (without D&A) (US$000) |  |  |  |  |  | 3492 |  |  |  |  |  | 2292 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) | 9432 | 17228 | 989 | 1799 | 6783 | 36231 | 9631 | 17127 | 1332 | 1860 | 5858 | 35808 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) | 6301 | 16904 | 545 | 2364 | 61539 | 86296 | 8852 | 27039 | 2721 | 12260 | 80480 | 131352 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) | 1849 | 9514 | 577 | 1186 | 5889 | 19015 | 2768 | 5909 | 551 | 972 | 7565 | 17765 |
| **Cost Applicable to Sales (US$000)** | **149067** | **191207** | **10704** | **21423** | **226702** | **664746** | **131187** | **163066** | **14691** | **31955** | **241118** | **582017** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold | 78661 | 11050709 | 12341 | 17266 | 35896 | &nbsp;&nbsp;&nbsp; Not Applicable | 100151 | 10676849 | 13134 | 18417 | 39883 | &nbsp;&nbsp;&nbsp; Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **1895** | **17.30** | **867** | **1241** | **6315** | &nbsp;&nbsp;&nbsp; **Not Applicable** | **1310** | **15.27** | **1119** | **1735** | **6046** | &nbsp;&nbsp;&nbsp; **Not Applicable** |

---

**Note: The calculation of Buenaventura's Consolidated CAS per metal excludes the effects of Buenaventura Trading and Non-Mining Companies to avoid distorting the analysis. The objective is for this indicator to accurately reflect the CAS of the mining units.**

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** |
|  | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2025** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** | **3Q 2024** |
|  | **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) | 17863 | 940 |  |  |  | 18803 | 13476 | 740 |  |  |  | 14216 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) | 912 | 48 |  |  |  | 960 | 4444 | 244 |  |  |  | 4688 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) | 73 | 3 |  |  |  | 76 | 49 | 3 |  |  |  | 51 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) | 230 | 12 |  |  |  | 242 | 132 | 7 |  |  |  | 139 |
| **Cost Applicable to Sales (US$000)** | **19078** | **1003** | **-** | **-** | **-** | **20081** | **18101** | **994** | **-** | **-** | **-** | **19094** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold | 13433 | 61683 |  |  |  | &nbsp;&nbsp;&nbsp; Not Applicable | 8450 | 38748 |  |  |  | &nbsp;&nbsp;&nbsp; Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **1420** | **16.26** | **-** | **-** | **-** | &nbsp;&nbsp;&nbsp; **Not Applicable** | **2142** | **25.65** | **-** | **-** | **-** | &nbsp;&nbsp;&nbsp; **Not Applicable** |

---

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** | **COIMOLACHE** |
|  | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2025** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** | **9M 2024** |
|  | **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) | 50423 | 3185 |  |  |  | 53608 | 51631 | 2813 |  |  |  | 54444 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Add:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exploration Expenses (US$000) | 2722 | 172 |  |  |  | 2894 | 5756 | 314 |  |  |  | 6070 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Commercial Deductions (US$000) | 241 | 15 |  |  |  | 256 | 339 | 16 |  |  |  | 355 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Selling Expenses (US$000) | 642 | 41 |  |  |  | 683 | 521 | 28 |  |  |  | 549 |
| **Cost Applicable to Sales (US$000)** | **54029** | **3412** | **-** | **-** | **-** | **57441** | **58247** | **3171** | **-** | **-** | **-** | **61418** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Divide:** |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Volume Sold | 38302 | 223473 |  |  |  | &nbsp;&nbsp;&nbsp; Not Applicable | 38526 | 177393 |  |  |  | &nbsp;&nbsp;&nbsp; Not Applicable |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **CAS** | **1411** | **15.27** | **-** | **-** | **-** | &nbsp;&nbsp;&nbsp; **No Applicable** | **1512** | **17.88** | **-** | **-** | **-** | &nbsp;&nbsp;&nbsp; **Not Applicable** |

---

**APPENDIX 5: All-in Sustaining Cost**

**<u>All-in Sustaining Cost for 3Q25 - Gold</u>**

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Buenaventura<sup>1</sup>** | **Buenaventura<sup>1</sup>** | **La Zanja** | **La Zanja** | **El Brocal** | **El Brocal** | **Consolidated <sup>2</sup>** | **Consolidated <sup>2</sup>** | **Tantahuatay** | **Tantahuatay** |
|  | **3Q25** | **3Q25** | **3Q25** | **3Q25** | **3Q25** | **3Q25** | **3Q25** | **3Q25** | **3Q25** | **3Q25** |
| Au Ounces Sold Net |  | 20572 |  | 4910 |  | 2555 |  | 28038 |  | 13433 |
| **Income Statement & Cash Flow** | **US$000'** | **US$/Oz Au** | **US$000'** | **US$/Oz Au** | **US$000'** | **US$/Oz Au** | **US$000'** | **US$/Oz Au** | **US$000'** | **US$/Oz Au** |
| Cost of Sales | 88161 | 4285 | 8953 | 1823 | 61226 | 23961 | 158340 | 5647 | 18803 | 1400 |
| Exploration in Operating Units | 10616 | 516 | 1 | 0 | 1906 | 746 | 12523 | 447 | 961 | 72 |
| Royalties | 3922 | 191 | 0 | 0 | 0 | 0 | 3922 | 140 | 0 | 0 |
| Comercial Deductions<sup>3</sup> | 6976 | 339 | 13 | 3 | 24049 | 9411 | 31037 | 1107 | 76 | 6 |
| Selling Expenses | 5395 | 262 | 36 | 7 | 2322 | 909 | 7753 | 277 | 243 | 18 |
| Administrative Expenses | 13071 | 635 | 433 | 88 | 2373 | 929 | 15877 | 566 | 947 | 70 |
| Other, net | 4393 | 214 | -93 | -19 | 2085 | 816 | 6385 | 228 | 821 | 61 |
| Sustaining Capex<sup>4</sup> | 13298 | 646 | 3194 | 651 | 13887 | 5435 | 30379 | 1083 | 3048 | 227 |
| By-product Credit | -171397 | -8331 | -907 | -185 | -140035 | -54803 | -312339 | -11140 | -2480 | -185 |
| **All-in Sustaining Cost** | **-25565** | **-1243** | **11630** | **2368** | **-32187** | **-12597** | **-46122** | **-1645** | **22419** | **1669** |
| **<u>All-in Sustaining Cost for 3Q25 - Copper</u>** | **<u>All-in Sustaining Cost for 3Q25 - Copper</u>** | **<u>All-in Sustaining Cost for 3Q25 - Copper</u>** | **<u>All-in Sustaining Cost for 3Q25 - Copper</u>** |  |  |  |  |  |  |  |
|  | **Buenaventura<sup>1</sup>** | **Buenaventura<sup>1</sup>** | **La Zanja** | **La Zanja** | **El Brocal** | **El Brocal** | **Consolidated <sup>2</sup>** | **Consolidated <sup>2</sup>** |  |  |
|  | **3Q25** | **3Q25** | **3Q25** | **3Q25** | **3Q25** | **3Q25** | **3Q25** | **3Q25** |  |  |
| Cu MT Sold Net |  | 120 |  | 0 |  | 11813 |  | 11933 |  |  |
| **Income Statement & Cash Flow** | **US$000'** | **US$/TM Cu** | **US$000'** | **US$/TM Cu** | **US$000'** | **US$/TM Cu** | **US$000'** | **US$/TM Cu** |  |  |
| Cost of Sales | 88161 | 735533 | 8953 |  | 61226 | 5183 | 158340 | 13269 |  |  |
| Exploration in Operating Units | 10616 | 88570 | 1 |  | 1906 | 161 | 12523 | 1049 |  |  |
| Royalties | 3922 | 32722 | 0 |  | 0 | 0 | 3922 | 329 |  |  |
| Comercial Deductions<sup>3</sup> | 6976 | 58203 | 13 |  | 24049 | 2036 | 31037 | 2601 |  |  |
| Selling Expenses | 5395 | 45011 | 36 |  | 2322 | 197 | 7753 | 650 |  |  |
| Administrative Expenses | 13071 | 109052 | 433 |  | 2373 | 201 | 15877 | 1330 |  |  |
| Other, net | 4393 | 36651 | -93 |  | 2085 | 176 | 6385 | 535 |  |  |
| Sustaining Capex<sup>4</sup> | 13298 | 110945 | 3194 |  | 13887 | 1176 | 30379 | 2546 |  |  |
| By-product Credit | -244090 | -2036462 | -18527 |  | -31123 | -2635 | -293740 | -24615 |  |  |
| **All-in Sustaining Cost** | **-98258** | **-819774** | **-5990** |  | **76724** | **6495** | **-27524** | **-2306** |  |  |

---

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

<u>Notes:</u>

1. Non-consolidated financial statements for Compañia De Minas Buenaventura S.A.A.

2. Considers 100% from Compañia De Minas Buenaventura S.A.A., 100% from La Zanja and 100% from El Brocal.

3. For all metals produced.

4. Sustaining Capex + Growth Capex equals Acquisitions of mining concessions, development costs, property, plant and equipment.

**<u>All-in Sustaining Cost for 3Q24 - Gold</u>**

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | &nbsp;&nbsp;**Buenaventura<sup>1</sup>** | &nbsp;&nbsp;**Buenaventura<sup>1</sup>** | &nbsp;&nbsp;**La Zanja** | &nbsp;&nbsp;**La Zanja** | &nbsp;&nbsp;**El Brocal** | &nbsp;&nbsp;**El Brocal** | &nbsp;&nbsp;**Consolidated <sup>2</sup>** | &nbsp;&nbsp;**Consolidated <sup>2</sup>** | &nbsp;&nbsp;**Tantahuatay** | &nbsp;&nbsp;**Tantahuatay** |
|  | &nbsp;&nbsp;**3Q24** | &nbsp;&nbsp;**3Q24** | &nbsp;&nbsp;**3Q24** | &nbsp;&nbsp;**3Q24** | &nbsp;&nbsp;**3Q24** | &nbsp;&nbsp;**3Q24** | &nbsp;&nbsp;**3Q24** | &nbsp;&nbsp;**3Q24** | &nbsp;&nbsp;**3Q24** | &nbsp;&nbsp;**3Q24** |
| Au Ounces Sold Net |  | &nbsp;&nbsp;26758 |  | &nbsp;&nbsp;4676 |  | &nbsp;&nbsp;3912 |  | &nbsp;&nbsp;35345 |  | &nbsp;&nbsp;8450 |
| **Income Statement & Cash Flow** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/Oz Au** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/Oz Au** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/Oz Au** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/Oz Au** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/Oz Au** |
| Cost of Sales | &nbsp;&nbsp;86371 | &nbsp;&nbsp;3228 | &nbsp;&nbsp;7850 | &nbsp;&nbsp;1679 | &nbsp;&nbsp;67606 | &nbsp;&nbsp;17283 | &nbsp;&nbsp;161827 | &nbsp;&nbsp;4578 | &nbsp;&nbsp;14216 | &nbsp;&nbsp;1682 |
| Exploration in Operating Units | &nbsp;&nbsp;11091 | &nbsp;&nbsp;414 | &nbsp;&nbsp;63 | &nbsp;&nbsp;13 | &nbsp;&nbsp;2570 | &nbsp;&nbsp;657 | &nbsp;&nbsp;13724 | &nbsp;&nbsp;388 | &nbsp;&nbsp;4687 | &nbsp;&nbsp;555 |
| Royalties | &nbsp;&nbsp;4702 | &nbsp;&nbsp;176 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;4702 | &nbsp;&nbsp;133 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| Comercial Deductions<sup>3</sup> | &nbsp;&nbsp;13019 | &nbsp;&nbsp;487 | &nbsp;&nbsp;15 | &nbsp;&nbsp;3 | &nbsp;&nbsp;36703 | &nbsp;&nbsp;9383 | &nbsp;&nbsp;49738 | &nbsp;&nbsp;1407 | &nbsp;&nbsp;51 | &nbsp;&nbsp;6 |
| Selling Expenses | &nbsp;&nbsp;3290 | &nbsp;&nbsp;123 | &nbsp;&nbsp;29 | &nbsp;&nbsp;6 | &nbsp;&nbsp;3052 | &nbsp;&nbsp;780 | &nbsp;&nbsp;6371 | &nbsp;&nbsp;180 | &nbsp;&nbsp;139 | &nbsp;&nbsp;16 |
| Administrative Expenses | &nbsp;&nbsp;13268 | &nbsp;&nbsp;496 | &nbsp;&nbsp;421 | &nbsp;&nbsp;90 | &nbsp;&nbsp;2347 | &nbsp;&nbsp;600 | &nbsp;&nbsp;16036 | &nbsp;&nbsp;454 | &nbsp;&nbsp;833 | &nbsp;&nbsp;99 |
| Other, net | &nbsp;&nbsp;746 | &nbsp;&nbsp;28 | &nbsp;&nbsp;1364 | &nbsp;&nbsp;292 | &nbsp;&nbsp;759 | &nbsp;&nbsp;194 | &nbsp;&nbsp;2869 | &nbsp;&nbsp;81 | &nbsp;&nbsp;24 | &nbsp;&nbsp;3 |
| Sustaining Capex<sup>4</sup> | &nbsp;&nbsp;6819 | &nbsp;&nbsp;255 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;4297 | &nbsp;&nbsp;1099 | &nbsp;&nbsp;11116 | &nbsp;&nbsp;315 | &nbsp;&nbsp;2263 | &nbsp;&nbsp;268 |
| By-product Credit | &nbsp;&nbsp;-129471 | &nbsp;&nbsp;-4839 | &nbsp;&nbsp;-510 | &nbsp;&nbsp;-109 | &nbsp;&nbsp;-159248 | &nbsp;&nbsp;-40711 | &nbsp;&nbsp;-289229 | &nbsp;&nbsp;-8183 | &nbsp;&nbsp;-1179 | &nbsp;&nbsp;-140 |
| **All-in Sustaining Cost** | &nbsp;&nbsp;**9835** | &nbsp;&nbsp;**368** | &nbsp;&nbsp;**9232** | &nbsp;&nbsp;**1975** | &nbsp;&nbsp;**-41913** | &nbsp;&nbsp;**-10715** | &nbsp;&nbsp;**-22846** | &nbsp;&nbsp;**-646** | &nbsp;&nbsp;**21034** | &nbsp;&nbsp;**2489** |
| **<u>All-in Sustaining Cost for 3Q24 - Copper</u>** | **<u>All-in Sustaining Cost for 3Q24 - Copper</u>** | **<u>All-in Sustaining Cost for 3Q24 - Copper</u>** | **<u>All-in Sustaining Cost for 3Q24 - Copper</u>** | **<u>All-in Sustaining Cost for 3Q24 - Copper</u>** |  |  |  |  |  |  |
|  | &nbsp;&nbsp;**Buenaventura<sup>1</sup>** | &nbsp;&nbsp;**Buenaventura<sup>1</sup>** | &nbsp;&nbsp;**La Zanja** | &nbsp;&nbsp;**La Zanja** | &nbsp;&nbsp;**El Brocal** | &nbsp;&nbsp;**El Brocal** | &nbsp;&nbsp;**Consolidated <sup>2</sup>** | &nbsp;&nbsp;**Consolidated <sup>2</sup>** |  |  |
|  | &nbsp;&nbsp;**3Q24** | &nbsp;&nbsp;**3Q24** | &nbsp;&nbsp;**3Q24** | &nbsp;&nbsp;**3Q24** | &nbsp;&nbsp;**3Q24** | &nbsp;&nbsp;**3Q24** | &nbsp;&nbsp;**3Q24** | &nbsp;&nbsp;**3Q24** |  |  |
| Cu MT Sold Net |  | &nbsp;&nbsp;51 |  | &nbsp;&nbsp;0 |  | &nbsp;&nbsp;15571 |  | &nbsp;&nbsp;15622 |  |  |
| **Income Statement & Cash Flow** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/TM Cu** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/TM Cu** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/TM Cu** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/TM Cu** |  |  |
| Cost of Sales | &nbsp;&nbsp;86371 | &nbsp;&nbsp;1686275 | &nbsp;&nbsp;7850 | &nbsp;&nbsp;- | &nbsp;&nbsp;67606 | &nbsp;&nbsp;4342 | &nbsp;&nbsp;161827 | &nbsp;&nbsp;10359 |  |  |
| Exploration in Operating Units | &nbsp;&nbsp;11091 | &nbsp;&nbsp;216537 | &nbsp;&nbsp;63 | &nbsp;&nbsp;- | &nbsp;&nbsp;2570 | &nbsp;&nbsp;165 | &nbsp;&nbsp;13724 | &nbsp;&nbsp;878 |  |  |
| Royalties | &nbsp;&nbsp;4702 | &nbsp;&nbsp;91793 | &nbsp;&nbsp;0 | &nbsp;&nbsp;- | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;4702 | &nbsp;&nbsp;301 |  |  |
| Comercial Deductions<sup>3</sup> | &nbsp;&nbsp;13019 | &nbsp;&nbsp;254173 | &nbsp;&nbsp;15 | &nbsp;&nbsp;- | &nbsp;&nbsp;36703 | &nbsp;&nbsp;2357 | &nbsp;&nbsp;49738 | &nbsp;&nbsp;3184 |  |  |
| Selling Expenses | &nbsp;&nbsp;3290 | &nbsp;&nbsp;64233 | &nbsp;&nbsp;29 | &nbsp;&nbsp;- | &nbsp;&nbsp;3052 | &nbsp;&nbsp;196 | &nbsp;&nbsp;6371 | &nbsp;&nbsp;408 |  |  |
| Administrative Expenses | &nbsp;&nbsp;13268 | &nbsp;&nbsp;259039 | &nbsp;&nbsp;421 | &nbsp;&nbsp;- | &nbsp;&nbsp;2347 | &nbsp;&nbsp;151 | &nbsp;&nbsp;16036 | &nbsp;&nbsp;1026 |  |  |
| Other, net | &nbsp;&nbsp;746 | &nbsp;&nbsp;14565 | &nbsp;&nbsp;1364 | &nbsp;&nbsp;- | &nbsp;&nbsp;759 | &nbsp;&nbsp;49 | &nbsp;&nbsp;2869 | &nbsp;&nbsp;184 |  |  |
| Sustaining Capex<sup>4</sup> | &nbsp;&nbsp;6819 | &nbsp;&nbsp;133132 | &nbsp;&nbsp;0 | &nbsp;&nbsp;- | &nbsp;&nbsp;4297 | &nbsp;&nbsp;276 | &nbsp;&nbsp;11116 | &nbsp;&nbsp;712 |  |  |
| By-product Credit | &nbsp;&nbsp;-195913 | &nbsp;&nbsp;-3824923 | &nbsp;&nbsp;-12783 | &nbsp;&nbsp;- | &nbsp;&nbsp;-22680 | &nbsp;&nbsp;-1457 | &nbsp;&nbsp;-231375 | &nbsp;&nbsp;-14810 |  |  |
| **All-in Sustaining Cost** | &nbsp;&nbsp;**-56607** | &nbsp;&nbsp;**-1105177** | &nbsp;&nbsp;**-3040** | &nbsp;&nbsp;- | &nbsp;&nbsp;**94655** | &nbsp;&nbsp;**6079** | &nbsp;&nbsp;**35008** | &nbsp;&nbsp;**2241** |  |  |

---

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

<u>Notes:</u>

1. Non-consolidated financial statements for Compañia De Minas Buenaventura S.A.A.

2. Considers 100% from Compañia De Minas Buenaventura S.A.A., 100% from La Zanja and 100% from El Brocal.

3. For all metals produced.

4. Sustaining Capex + Growth Capex equals Acquisitions of mining concessions, development costs, property, plant and equipment.

**<u>All-in Sustaining Cost for 9M25 - Gold</u>**

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | &nbsp;&nbsp;**Buenaventura<sup>1</sup>** | &nbsp;&nbsp;**Buenaventura<sup>1</sup>** | &nbsp;&nbsp;**La Zanja** | &nbsp;&nbsp;**La Zanja** | &nbsp;&nbsp;**El Brocal** | &nbsp;&nbsp;**El Brocal** | &nbsp;&nbsp;**Consolidated <sup>2</sup>** | &nbsp;&nbsp;**Consolidated <sup>2</sup>** | &nbsp;&nbsp;**Tantahuatay** | &nbsp;&nbsp;**Tantahuatay** |
|  | &nbsp;&nbsp;**9M25** | &nbsp;&nbsp;**9M25** | &nbsp;&nbsp;**9M25** | &nbsp;&nbsp;**9M25** | &nbsp;&nbsp;**9M25** | &nbsp;&nbsp;**9M25** | &nbsp;&nbsp;**9M25** | &nbsp;&nbsp;**9M25** | &nbsp;&nbsp;**9M25** | &nbsp;&nbsp;**9M25** |
| Au Ounces Sold Net |  | &nbsp;&nbsp;56317 |  | &nbsp;&nbsp;13877 |  | &nbsp;&nbsp;8468 |  | &nbsp;&nbsp;78661 |  | &nbsp;&nbsp;38302 |
| **Income Statement & Cash Flow** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/Oz Au** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/Oz Au** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/Oz Au** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/Oz Au** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/Oz Au** |
| Cost of Sales | &nbsp;&nbsp;252823 | &nbsp;&nbsp;4489 | &nbsp;&nbsp;25089 | &nbsp;&nbsp;1808 | &nbsp;&nbsp;182194 | &nbsp;&nbsp;21517 | &nbsp;&nbsp;460106 | &nbsp;&nbsp;5849 | &nbsp;&nbsp;53608 | &nbsp;&nbsp;1400 |
| Exploration in Operating Units | &nbsp;&nbsp;28287 | &nbsp;&nbsp;502 | &nbsp;&nbsp;13 | &nbsp;&nbsp;1 | &nbsp;&nbsp;7970 | &nbsp;&nbsp;941 | &nbsp;&nbsp;36270 | &nbsp;&nbsp;461 | &nbsp;&nbsp;2894 | &nbsp;&nbsp;76 |
| Royalties | &nbsp;&nbsp;10998 | &nbsp;&nbsp;195 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;10998 | &nbsp;&nbsp;140 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| Comercial Deductions<sup>3</sup> | &nbsp;&nbsp;14779 | &nbsp;&nbsp;262 | &nbsp;&nbsp;89 | &nbsp;&nbsp;6 | &nbsp;&nbsp;72790 | &nbsp;&nbsp;8596 | &nbsp;&nbsp;87658 | &nbsp;&nbsp;1114 | &nbsp;&nbsp;256 | &nbsp;&nbsp;7 |
| Selling Expenses | &nbsp;&nbsp;11712 | &nbsp;&nbsp;208 | &nbsp;&nbsp;91 | &nbsp;&nbsp;7 | &nbsp;&nbsp;7078 | &nbsp;&nbsp;836 | &nbsp;&nbsp;18881 | &nbsp;&nbsp;240 | &nbsp;&nbsp;683 | &nbsp;&nbsp;18 |
| Administrative Expenses | &nbsp;&nbsp;39161 | &nbsp;&nbsp;695 | &nbsp;&nbsp;1187 | &nbsp;&nbsp;86 | &nbsp;&nbsp;6645 | &nbsp;&nbsp;785 | &nbsp;&nbsp;46993 | &nbsp;&nbsp;597 | &nbsp;&nbsp;2698 | &nbsp;&nbsp;70 |
| Other, net | &nbsp;&nbsp;4892 | &nbsp;&nbsp;87 | &nbsp;&nbsp;-147 | &nbsp;&nbsp;-11 | &nbsp;&nbsp;4931 | &nbsp;&nbsp;582 | &nbsp;&nbsp;9676 | &nbsp;&nbsp;123 | &nbsp;&nbsp;307 | &nbsp;&nbsp;8 |
| Sustaining Capex<sup>4</sup> | &nbsp;&nbsp;27302 | &nbsp;&nbsp;485 | &nbsp;&nbsp;4887 | &nbsp;&nbsp;352 | &nbsp;&nbsp;26461 | &nbsp;&nbsp;3125 | &nbsp;&nbsp;58650 | &nbsp;&nbsp;746 | &nbsp;&nbsp;4576 | &nbsp;&nbsp;119 |
| By-product Credit | &nbsp;&nbsp;-425701 | &nbsp;&nbsp;-7559 | &nbsp;&nbsp;-2479 | &nbsp;&nbsp;-179 | &nbsp;&nbsp;-385840 | &nbsp;&nbsp;-45567 | &nbsp;&nbsp;-814020 | &nbsp;&nbsp;-10348 | &nbsp;&nbsp;-7907 | &nbsp;&nbsp;-206 |
| **All-in Sustaining Cost** | &nbsp;&nbsp;**-35748** | &nbsp;&nbsp;**-635** | &nbsp;&nbsp;**28730** | &nbsp;&nbsp;**2070** | &nbsp;&nbsp;**-77770** | &nbsp;&nbsp;**-9184** | &nbsp;&nbsp;**-84789** | &nbsp;&nbsp;**-1078** | &nbsp;&nbsp;**57115** | &nbsp;&nbsp;**1491** |
| **<u>All-in Sustaining Cost for 9M25 - Copper</u>** | **<u>All-in Sustaining Cost for 9M25 - Copper</u>** | **<u>All-in Sustaining Cost for 9M25 - Copper</u>** | **<u>All-in Sustaining Cost for 9M25 - Copper</u>** | **<u>All-in Sustaining Cost for 9M25 - Copper</u>** |  |  |  |  |  |  |
|  | &nbsp;&nbsp;**Buenaventura<sup>1</sup>** | &nbsp;&nbsp;**Buenaventura<sup>1</sup>** | &nbsp;&nbsp;**La Zanja** | &nbsp;&nbsp;**La Zanja** | &nbsp;&nbsp;**El Brocal** | &nbsp;&nbsp;**El Brocal** | &nbsp;&nbsp;**Consolidated <sup>2</sup>** | &nbsp;&nbsp;**Consolidated <sup>2</sup>** |  |  |
|  | &nbsp;&nbsp;**9M25** | &nbsp;&nbsp;**9M25** | &nbsp;&nbsp;**9M25** | &nbsp;&nbsp;**9M25** | &nbsp;&nbsp;**9M25** | &nbsp;&nbsp;**9M25** | &nbsp;&nbsp;**9M25** | &nbsp;&nbsp;**9M25** |  |  |
| Cu MT Sold Net |  | &nbsp;&nbsp;320 |  | &nbsp;&nbsp;0 |  | &nbsp;&nbsp;35577 |  | &nbsp;&nbsp;35896 |  |  |
| **Income Statement & Cash Flow** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/TM Cu** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/TM Cu** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/TM Cu** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/TM Cu** |  |  |
| Cost of Sales | &nbsp;&nbsp;252823 | &nbsp;&nbsp;790813 | &nbsp;&nbsp;25089 | &nbsp;&nbsp;- | &nbsp;&nbsp;182194 | &nbsp;&nbsp;5121 | &nbsp;&nbsp;460106 | &nbsp;&nbsp;12818 |  |  |
| Exploration in Operating Units | &nbsp;&nbsp;28287 | &nbsp;&nbsp;88480 | &nbsp;&nbsp;13 | &nbsp;&nbsp;- | &nbsp;&nbsp;7970 | &nbsp;&nbsp;224 | &nbsp;&nbsp;36270 | &nbsp;&nbsp;1010 |  |  |
| Royalties | &nbsp;&nbsp;10998 | &nbsp;&nbsp;34401 | &nbsp;&nbsp;0 | &nbsp;&nbsp;- | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;10998 | &nbsp;&nbsp;306 |  |  |
| Comercial Deductions<sup>3</sup> | &nbsp;&nbsp;14779 | &nbsp;&nbsp;46227 | &nbsp;&nbsp;89 | &nbsp;&nbsp;- | &nbsp;&nbsp;72790 | &nbsp;&nbsp;2046 | &nbsp;&nbsp;87658 | &nbsp;&nbsp;2442 |  |  |
| Selling Expenses | &nbsp;&nbsp;11712 | &nbsp;&nbsp;36634 | &nbsp;&nbsp;91 | &nbsp;&nbsp;- | &nbsp;&nbsp;7078 | &nbsp;&nbsp;199 | &nbsp;&nbsp;18881 | &nbsp;&nbsp;526 |  |  |
| Administrative Expenses | &nbsp;&nbsp;39161 | &nbsp;&nbsp;122493 | &nbsp;&nbsp;1187 | &nbsp;&nbsp;- | &nbsp;&nbsp;6645 | &nbsp;&nbsp;187 | &nbsp;&nbsp;46993 | &nbsp;&nbsp;1309 |  |  |
| Other, net | &nbsp;&nbsp;4892 | &nbsp;&nbsp;15302 | &nbsp;&nbsp;-147 | &nbsp;&nbsp;- | &nbsp;&nbsp;4931 | &nbsp;&nbsp;139 | &nbsp;&nbsp;9676 | &nbsp;&nbsp;270 |  |  |
| Sustaining Capex<sup>4</sup> | &nbsp;&nbsp;27302 | &nbsp;&nbsp;85398 | &nbsp;&nbsp;4887 | &nbsp;&nbsp;- | &nbsp;&nbsp;26461 | &nbsp;&nbsp;744 | &nbsp;&nbsp;58650 | &nbsp;&nbsp;1634 |  |  |
| By-product Credit | &nbsp;&nbsp;-608105 | &nbsp;&nbsp;-1902111 | &nbsp;&nbsp;-47987 | &nbsp;&nbsp;- | &nbsp;&nbsp;-71432 | &nbsp;&nbsp;-2008 | &nbsp;&nbsp;-727524 | &nbsp;&nbsp;-20267 |  |  |
| **All-in Sustaining Cost** | &nbsp;&nbsp;**-218151** | &nbsp;&nbsp;**-682363** | &nbsp;&nbsp;**-16778** | &nbsp;&nbsp;- | &nbsp;&nbsp;**236638** | &nbsp;&nbsp;**6651** | &nbsp;&nbsp;**1708** | &nbsp;&nbsp;**48** |  |  |

---

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

<u>Notes:</u>

1. Non-consolidated financial statements for Compañia De Minas Buenaventura S.A.A.

2. Considers 100% from Compañia De Minas Buenaventura S.A.A., 100% from La Zanja and 100% from El Brocal.

3. For all metals produced.

4. Sustaining Capex + Growth Capex equals Acquisitions of mining concessions, development costs, property, plant and equipment.

**<u>All-in Sustaining Cost for 9M24 - Gold</u>**

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | &nbsp;&nbsp;**Buenaventura<sup>1</sup>** | &nbsp;&nbsp;**Buenaventura<sup>1</sup>** | &nbsp;&nbsp;**La Zanja** | &nbsp;&nbsp;**La Zanja** | &nbsp;&nbsp;**El Brocal** | &nbsp;&nbsp;**El Brocal** | &nbsp;&nbsp;**Consolidated <sup>2</sup>** | &nbsp;&nbsp;**Consolidated <sup>2</sup>** | &nbsp;&nbsp;**Tantahuatay** | &nbsp;&nbsp;**Tantahuatay** |
|  | &nbsp;&nbsp;**9M24** | &nbsp;&nbsp;**9M24** | &nbsp;&nbsp;**9M24** | &nbsp;&nbsp;**9M24** | &nbsp;&nbsp;**9M24** | &nbsp;&nbsp;**9M24** | &nbsp;&nbsp;**9M24** | &nbsp;&nbsp;**9M24** | &nbsp;&nbsp;**9M24** | &nbsp;&nbsp;**9M24** |
| Au Ounces Sold Net |  | &nbsp;&nbsp;80949 |  | &nbsp;&nbsp;8525 |  | &nbsp;&nbsp;10676 |  | &nbsp;&nbsp;100151 |  | &nbsp;&nbsp;38526 |
| **Income Statement & Cash Flow** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/Oz Au** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/Oz Au** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/Oz Au** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/Oz Au** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/Oz Au** |
| Cost of Sales | &nbsp;&nbsp;231834 | &nbsp;&nbsp;2864 | &nbsp;&nbsp;15677 | &nbsp;&nbsp;1839 | &nbsp;&nbsp;178813 | &nbsp;&nbsp;16748 | &nbsp;&nbsp;426324 | &nbsp;&nbsp;4257 | &nbsp;&nbsp;54444 | &nbsp;&nbsp;1413 |
| Exploration in Operating Units | &nbsp;&nbsp;29058 | &nbsp;&nbsp;359 | &nbsp;&nbsp;113 | &nbsp;&nbsp;13 | &nbsp;&nbsp;6449 | &nbsp;&nbsp;604 | &nbsp;&nbsp;35620 | &nbsp;&nbsp;356 | &nbsp;&nbsp;6069 | &nbsp;&nbsp;158 |
| Royalties | &nbsp;&nbsp;11453 | &nbsp;&nbsp;141 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;11453 | &nbsp;&nbsp;114 | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 |
| Comercial Deductions<sup>3</sup> | &nbsp;&nbsp;36063 | &nbsp;&nbsp;445 | &nbsp;&nbsp;48 | &nbsp;&nbsp;6 | &nbsp;&nbsp;95240 | &nbsp;&nbsp;8921 | &nbsp;&nbsp;131352 | &nbsp;&nbsp;1312 | &nbsp;&nbsp;355 | &nbsp;&nbsp;9 |
| Selling Expenses | &nbsp;&nbsp;8432 | &nbsp;&nbsp;104 | &nbsp;&nbsp;58 | &nbsp;&nbsp;7 | &nbsp;&nbsp;8899 | &nbsp;&nbsp;834 | &nbsp;&nbsp;17389 | &nbsp;&nbsp;174 | &nbsp;&nbsp;549 | &nbsp;&nbsp;14 |
| Administrative Expenses | &nbsp;&nbsp;34554 | &nbsp;&nbsp;427 | &nbsp;&nbsp;1272 | &nbsp;&nbsp;149 | &nbsp;&nbsp;6942 | &nbsp;&nbsp;650 | &nbsp;&nbsp;42768 | &nbsp;&nbsp;427 | &nbsp;&nbsp;2701 | &nbsp;&nbsp;70 |
| Other, net | &nbsp;&nbsp;6918 | &nbsp;&nbsp;85 | &nbsp;&nbsp;1757 | &nbsp;&nbsp;206 | &nbsp;&nbsp;813 | &nbsp;&nbsp;76 | &nbsp;&nbsp;9488 | &nbsp;&nbsp;95 | &nbsp;&nbsp;96 | &nbsp;&nbsp;2 |
| Sustaining Capex<sup>4</sup> | &nbsp;&nbsp;15232 | &nbsp;&nbsp;188 | &nbsp;&nbsp;33 | &nbsp;&nbsp;4 | &nbsp;&nbsp;9054 | &nbsp;&nbsp;848 | &nbsp;&nbsp;24319 | &nbsp;&nbsp;243 | &nbsp;&nbsp;4470 | &nbsp;&nbsp;116 |
| By-product Credit | &nbsp;&nbsp;-335543 | &nbsp;&nbsp;-4145 | &nbsp;&nbsp;-935 | &nbsp;&nbsp;-110 | &nbsp;&nbsp;-403375 | &nbsp;&nbsp;-37782 | &nbsp;&nbsp;-739853 | &nbsp;&nbsp;-7387 | &nbsp;&nbsp;-4695 | &nbsp;&nbsp;-122 |
| **All-in Sustaining Cost** | &nbsp;&nbsp;**38000** | &nbsp;&nbsp;**469** | &nbsp;&nbsp;**18023** | &nbsp;&nbsp;**2114** | &nbsp;&nbsp;**-97164** | &nbsp;&nbsp;**-9101** | &nbsp;&nbsp;**-41140** | &nbsp;&nbsp;**-411** | &nbsp;&nbsp;**63988** | &nbsp;&nbsp;**1661** |
| **<u>All-in Sustaining Cost for 9M24 - Copper</u>** | **<u>All-in Sustaining Cost for 9M24 - Copper</u>** | **<u>All-in Sustaining Cost for 9M24 - Copper</u>** | **<u>All-in Sustaining Cost for 9M24 - Copper</u>** | **<u>All-in Sustaining Cost for 9M24 - Copper</u>** |  |  |  |  |  |  |
|  | &nbsp;&nbsp;**Buenaventura<sup>1</sup>** | &nbsp;&nbsp;**Buenaventura<sup>1</sup>** | &nbsp;&nbsp;**La Zanja** | &nbsp;&nbsp;**La Zanja** | &nbsp;&nbsp;**El Brocal** | &nbsp;&nbsp;**El Brocal** | &nbsp;&nbsp;**Consolidated <sup>2</sup>** | &nbsp;&nbsp;**Consolidated <sup>2</sup>** |  |  |
|  | &nbsp;&nbsp;**9M24** | &nbsp;&nbsp;**9M24** | &nbsp;&nbsp;**9M24** | &nbsp;&nbsp;**9M24** | &nbsp;&nbsp;**9M24** | &nbsp;&nbsp;**9M24** | &nbsp;&nbsp;**9M24** | &nbsp;&nbsp;**9M24** |  |  |
| Cu MT Sold Net |  | &nbsp;&nbsp;174 |  | &nbsp;&nbsp;0 |  | &nbsp;&nbsp;39709 |  | &nbsp;&nbsp;39883 |  |  |
| **Income Statement & Cash Flow** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/TM Cu** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/TM Cu** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/TM Cu** | &nbsp;&nbsp;**US$000'** | &nbsp;&nbsp;**US$/TM Cu** |  |  |
| Cost of Sales | &nbsp;&nbsp;231834 | &nbsp;&nbsp;1329628 | &nbsp;&nbsp;15677 | &nbsp;&nbsp;- | &nbsp;&nbsp;178813 | &nbsp;&nbsp;4503 | &nbsp;&nbsp;426324 | &nbsp;&nbsp;10689 |  |  |
| Exploration in Operating Units | &nbsp;&nbsp;29058 | &nbsp;&nbsp;166655 | &nbsp;&nbsp;113 | &nbsp;&nbsp;- | &nbsp;&nbsp;6449 | &nbsp;&nbsp;162 | &nbsp;&nbsp;35620 | &nbsp;&nbsp;893 |  |  |
| Royalties | &nbsp;&nbsp;11453 | &nbsp;&nbsp;65686 | &nbsp;&nbsp;0 | &nbsp;&nbsp;- | &nbsp;&nbsp;0 | &nbsp;&nbsp;0 | &nbsp;&nbsp;11453 | &nbsp;&nbsp;287 |  |  |
| Comercial Deductions<sup>3</sup> | &nbsp;&nbsp;36063 | &nbsp;&nbsp;206830 | &nbsp;&nbsp;48 | &nbsp;&nbsp;- | &nbsp;&nbsp;95240 | &nbsp;&nbsp;2398 | &nbsp;&nbsp;131352 | &nbsp;&nbsp;3293 |  |  |
| Selling Expenses | &nbsp;&nbsp;8432 | &nbsp;&nbsp;48360 | &nbsp;&nbsp;58 | &nbsp;&nbsp;- | &nbsp;&nbsp;8899 | &nbsp;&nbsp;224 | &nbsp;&nbsp;17389 | &nbsp;&nbsp;436 |  |  |
| Administrative Expenses | &nbsp;&nbsp;34554 | &nbsp;&nbsp;198176 | &nbsp;&nbsp;1272 | &nbsp;&nbsp;- | &nbsp;&nbsp;6942 | &nbsp;&nbsp;175 | &nbsp;&nbsp;42768 | &nbsp;&nbsp;1072 |  |  |
| Other, net | &nbsp;&nbsp;6918 | &nbsp;&nbsp;39677 | &nbsp;&nbsp;1757 | &nbsp;&nbsp;- | &nbsp;&nbsp;813 | &nbsp;&nbsp;20 | &nbsp;&nbsp;9488 | &nbsp;&nbsp;238 |  |  |
| Sustaining Capex<sup>4</sup> | &nbsp;&nbsp;15232 | &nbsp;&nbsp;87357 | &nbsp;&nbsp;33 | &nbsp;&nbsp;- | &nbsp;&nbsp;9054 | &nbsp;&nbsp;228 | &nbsp;&nbsp;24319 | &nbsp;&nbsp;610 |  |  |
| By-product Credit | &nbsp;&nbsp;-521061 | &nbsp;&nbsp;-2988423 | &nbsp;&nbsp;-21859 | &nbsp;&nbsp;- | &nbsp;&nbsp;-65717 | &nbsp;&nbsp;-1655 | &nbsp;&nbsp;-608637 | &nbsp;&nbsp;-15260 |  |  |
| **All-in Sustaining Cost** | &nbsp;&nbsp;**-147518** | &nbsp;&nbsp;**-846055** | &nbsp;&nbsp;**-2901** | &nbsp;&nbsp;- | &nbsp;&nbsp;**240494** | &nbsp;&nbsp;**6056** | &nbsp;&nbsp;**90075** | &nbsp;&nbsp;**2258** |  |  |

---

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

<u>Notes:</u>

1. Non-consolidated financial statements for Compañia De Minas Buenaventura S.A.A.

2. Considers 100% from Compañia De Minas Buenaventura S.A.A., 100% from La Zanja and 100% from El Brocal.

3. For all metals produced.

4. Sustaining Capex + Growth Capex equals Acquisitions of mining concessions, development costs, property, plant and equipment.

**APPENDIX 6** 

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

**Interim condensed consolidated statements of financial position**

**As of September 30, 2025 (unaudited) and December 31, 2024 (audited)**

---

| | | |
|:---|:---|:---|
|  | **2025** | **2024** |
|  | US$(000) | US$(000) |
| **Assets** |  |  |
| **Current assets** |  |  |
| Cash and cash equivalents | 485724 | 478435 |
| Trade and other receivables | 352965 | 256602 |
| Inventories | 88982 | 79594 |
| Current income tax | 1220 | 4257 |
| Prepaid expenses | 13180 | 19474 |
|  | 942071 | 838362 |
| **Non-current assets** |  |  |
| Trade and other receivables | 637310 | 597947 |
| Investments in associates and joint venture | 1621627 | 1548392 |
| Property, plant, equipment and development cost | 2104328 | 1889785 |
| Prepaid expenses | 20598 | 21262 |
| Current income tax assets | 1782 | 1643 |
| Deferred income tax asset | 61936 | 91677 |
| Other non-financial assets | 64516 | 58835 |
|  | 4512097 | 4209541 |
| **Total assets** | 5454168 | 5047903 |
| **Liabilities and equity** |  |  |
| **Current liabilities** |  |  |
| Trade and other payables | 320694 | 367204 |
| Financial obligations | 8717 | 9169 |
| Provisions | 61117 | 53900 |
| Income tax payable | 21697 | 49465 |
| Contingent consideration liability | 3334 | - |
|  | 415559 | 479738 |
| **Non-current liabilities** |  |  |
| Trade and other payables | 18588 | 13116 |
| Financial obligations | 701908 | 617613 |
| Provisions | 340786 | 306400 |
| Contingent consideration liability | 27725 | 28271 |
| Deferred income tax liabilities | 47757 | 43064 |
|  | 1136764 | 1008464 |
| **Total liabilities** | 1552323 | 1488202 |
| **Equity** |  |  |
| Capital stock | 750497 | 750497 |
| Investment shares | 791 | 791 |
| Additional paid-in capital | 218450 | 218450 |
| Legal reserve | 163544 | 163539 |
| Other reserves | 31897 | 31897 |
| Other reserves of equity | -96 | -96 |
| Retained earnings | 2549931 | 2225611 |
| Shareholders' equity attributable to owners of the parent | 3715014 | 3390689 |
| Non-controlling interest | 186831 | 169012 |
| **Total equity** | 3901845 | 3559701 |
| **Total liabilities and equity** | 5454168 | 5047903 |

---

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

Interim condensed consolidated statements of profit or loss (unaudited)

For the three-month and nine-month periods ended September 30, 2025 and 2024

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **For the three-month periods** | **For the three-month periods** | **For the nine-month periods** | **For the nine-month periods** |
|  | **ended September 30,** | **ended September 30,** | **ended September 30,** | **ended September 30,** |
|  | **2025** | **2024** | **2025** | **2024** |
|  | US$(000) | US$(000) | US$(000) | US$(000) |
| **Continuing operations** |  |  |  |  |
| **Operating income** |  |  |  |  |
| Sales of goods | 428414 | 329017 | 1099759 | 850235 |
| Sales of services | 2624 | 2089 | 8485 | 4777 |
| **Total operating income** | 431038 | 331106 | 1108244 | 855012 |
| **Cost of sales** |  |  |  |  |
| Cost of sales of goods, excluding depreciation and amortization | (186310) | (153640) | (528092) | (399725) |
| Unabsorbed cost due to production stoppage | (274) | (271) | (2219) | (1711) |
| Cost of sales of services, excluding depreciation and amortization | (1044) | (759) | (3492) | (2292) |
| Depreciation and amortization | (31569) | (43815) | (86986) | (119717) |
| Exploration in operating units | (12518) | (13703) | (36231) | (35808) |
| Mining royalties | (3922) | (5866) | (12721) | (15017) |
| **Total cost of sales** | (235637) | (218054) | (669741) | (574270) |
| **Gross profit (loss)** | 195401 | 113052 | 438503 | 280742 |
| **Operating income (expenses), net** |  |  |  |  |
| Administrative expenses | (17032) | (16950) | (50616) | (45800) |
| Selling expenses | (8436) | (7003) | (20284) | (18670) |
| Exploration in non-operating areas | (6805) | (6297) | (17372) | (16847) |
| Reversal (provision) of contingencies | (1075) | (1245) | (752) | (1878) |
| Other, net | (7741) | 204751 | (13424) | 202187 |
| **Total operating income (expenses), net** | (41089) | 173256 | (102448) | 118992 |
| **Operating income** | 154312 | 286308 | 336055 | 399734 |
| Share in the results of associates and joint venture | 71115 | 48664 | 187060 | 150189 |
| Foreign currency exchange difference | 11605 | 18369 | 45541 | (572) |
| Finance income | 4338 | 3654 | 20906 | 7627 |
| Finance costs | (20520) | (12969) | (59922) | (42377) |
| **Profit before income tax** | 220850 | 344026 | 529640 | 514601 |
| Current income tax | (34428) | (67756) | (67369) | (90049) |
| Deferred income tax | (7199) | (30385) | (34424) | (37178) |
|  | (41627) | (98141) | (101793) | (127227) |
| **Profit from continuing operations** | 179223 | 245885 | 427847 | 387374 |
| **Discontinued operations** |  |  |  |  |
| Loss from discontinued operations, net of taxes | (224) | (1459) | (3689) | (1521) |
| **Net profit** | 178999 | 244426 | 424158 | 385853 |
| **Profit attributable to:** |  |  |  |  |
| Owners of the parent | 167149 | 236927 | 398540 | 369075 |
| Non-controlling interest | 11850 | 7499 | 25618 | 16778 |
|  | 178999 | 244426 | 424158 | 385853 |
| **Basic and diluted profit per share, stated in U.S. dollars** |  |  |  |  |
| Attributable to owners of parent | 0.66 | 0.93 | 1.57 | 1.45 |
| Attributable to owners of the parent for continuing operations | 0.71 | 0.97 | 1.68 | 1.53 |

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

Interim condensed consolidated statements of cash flows (unaudited)

For the three-month and nine-month periods ended September 30, 2025 and 2024

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| | | | | |
|:---|:---|:---|:---|:---|
|  | **For the three-month periods** | **For the three-month periods** | **For the six-month periods** | **For the six-month periods** |
|  | **ended September 30,** | **ended September 30,** | **ended September 30,** | **ended September 30,** |
|  | **2025** | **2024** | **2025** | **2024** |
|  | US$(000) | US$(000) | US$(000) | US$(000) |
| **Cash flows from (used in) operating activities** |  |  |  |  |
| Proceeds from sales of goods and services | 383156 | 318002 | 1007963 | 834635 |
| Dividends received from associates | 62046 | 59902 | 113900 | 90169 |
| Recovery of taxes | 8203 | 9141 | 52237 | 32101 |
| Interest received | 6782 | 1609 | 15468 | 2397 |
| Dividends received from investments |  |  | 1050 | 1150 |
| Payments to suppliers and third parties, and others net | (169608) | (117972) | (545331) | (451120) |
| Payments to employees | (39068) | (55682) | (133995) | (115268) |
| Interest paid | (27061) | (16862) | (44643) | (35713) |
| Income tax and royalties paid to the Peruvian Government | (35208) | (17546) | (114296) | (43632) |
| Payment of royalties to third parties | (3363) | 232 | (10735) | (6751) |
| **Net cash flows generated from operating activities** | 185879 | 180824 | 341618 | 307968 |
| **Cash flows from (used in) investing activities** |  |  |  |  |
| Collection from the sale of shares of the subsidiary Chaupiloma Dos de Cajamarca S.C.R.L. |  | 210000 |  | 210000 |
| Proceeds from sale of property, plant and equipment | 1148 | 116 | 1712 | 374 |
| Proceeds from the sale of shares |  | 3271 |  | 10273 |
| Payments for acquisition of property, plant and equipment and development costs | (136815) | (95448) | (322629) | (236769) |
| Payments for acquisition of other assets | - | (155) | (6900) | (1524) |
| **Net cash flows used in investing activities** | (135667) | 117784 | (327817) | (17646) |
| **Cash flows from (used in) financing activities** |  |  |  |  |
| Issuance of Senior Notes, net of issuance costs |  |  | 634344 |  |
| Decrease (increase) of bank accounts in trust | (1033) | (970) | (1013) | (1040) |
| Dividends paid to controlling interest |  | 36 | (74220) | (18441) |
| Payments of financial obligations | (150296) | (7759) | (555063) | (23276) |
| Lease payments | (1696) | (1782) | (2631) | (3575) |
| Dividends paid to non-controlling interest | - | (1787) | (7929) | (5888) |
| **Net cash flows from (used in) financing activities** | (153025) | (12262) | (6512) | (52220) |
| Increase (decrease) in cash and cash equivalents during the period, net | (102813) | 286346 | 7289 | 238102 |
| Cash and cash equivalents at beginning of period | 588537 | 171546 | 478435 | 219790 |
| **Cash and cash equivalents at the end of the period** | 485724 | 457892 | 485724 | 457892 |
| **Reconciliation of net profit to cash and cash equivalents provided by operating activities** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Net profit | 178999 | 244426 | 424158 | 385853 |
| **Plus (less):** |  |  |  |  |
| Collection from the sale of shares of the subsidiary Chaupiloma Dos de Cajamarca S.C.R.L. |  | (210000) |  | (210000) |
| &nbsp;&nbsp;&nbsp;Share in the results of associates and joint venture | (71115) | (48664) | (187060) | (150189) |
| &nbsp;&nbsp;&nbsp;Deferred income tax | 7188 | 30385 | 34423 | 36966 |
| &nbsp;&nbsp;&nbsp;Current income tax | 24283 | 63069 | 47980 | 79280 |
| &nbsp;&nbsp;&nbsp;Exchange difference | (11455) | (17118) | (47587) | 1526 |
| &nbsp;&nbsp;&nbsp;Contingencies | 557 | 933 | 3723 | 3046 |
| &nbsp;&nbsp;&nbsp;Depreciation and amortization in cost of sales | 31569 | 43815 | 86986 | 119717 |
| &nbsp;&nbsp;&nbsp;Depreciation and amortization in others | 275 | 497 | 1100 | 1275 |
| &nbsp;&nbsp;&nbsp;Finance costs | 4581 | 182 | 13829 | 7485 |
| &nbsp;&nbsp;&nbsp;Mining Royalties and Special Mining Tax | 10146 | 4687 | 19390 | 10769 |
| &nbsp;&nbsp;&nbsp;(Reversal) provision for impairment of value of inventory | 6861 | (8183) | 4878 | (4292) |
| &nbsp;&nbsp;&nbsp;Finance (income) costs for contingent consideration liability | 977 | 2593 | 2788 | 4610 |
| &nbsp;&nbsp;&nbsp;Bonus provision - executives & employes | 12425 | 8532 | 29989 | 20807 |
| &nbsp;&nbsp;&nbsp;Fair value of accounts receivables and adjustments to prior period liquidations | (18551) | 1071 | (40576) | (6195) |
| &nbsp;&nbsp;&nbsp;Other minors | 681 | (2063) | 1624 | (2159) |
| &nbsp;&nbsp;&nbsp;**Net changes in operating assets and liabilities:** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Decrease (increase) in operating assets - |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Trade and other accounts receivable | (30600) | 38626 | (43382) | 88630 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Inventories | (2546) | 17221 | (2131) | 1199 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Prepaid expenses | 6715 | 6771 | 6958 | 13267 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Investments in associates | 62020 | 31 | 113824 | 108 |
| &nbsp;&nbsp;&nbsp;Increase (decrease) in operating liabilities - |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Trade and other accounts payable | 1298 | 29013 | (35190) | (54043) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Provisions | (6138) | (11583) | (11744) | (15780) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Income tax payable | (22291) | (13417) | (82362) | (23912) |
| **Net cash and cash equivalents used in operating activities** | 185879 | 180824 | 341618 | 307968 |

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**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.

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| | | |
|:---|:---|:---|
|  | **COMPAÑÍA DE MINAS BUENAVENTURA S.A.A.** | **COMPAÑÍA DE MINAS BUENAVENTURA S.A.A.** |
| Date: October 30, 2025 | By: | /s/ DANIEL DOMÍNGUEZ VERA |
|  | Name: | Daniel Domínguez Vera |
|  | Title: | Market Relations Officer |

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