Slide 1: Earnings Conference Call 2Q26
Earnings Conference Call 2Q26 August 6, 2026
Slide 2: Disclaimer
Disclaimer Certain forward-looking statements are based on third-party data and market forecasts, which may not be accurate or current. Nexa does not guarantee such external data and Important information assumes no obligation to update it except as required by law. concerning this presentation Mate
Slide 3: Highlights 2Q26
Highlights 2Q26 Key Operational Results Key Financial Results Zinc Production (mining) Net Revenues (US$) Adjusted EBITDA1 (US$) 79kt 908 mm 286 mm +8% 0% +28% +2% +78% +1% vs. 2Q25 vs. 1Q26 vs. 2Q25 vs. 1Q26 vs. 2Q25 vs. 1Q26 Total Zinc Sales (smelting) Net Leverage² Free Cash Flow (US$) 134kt 1.4x
Slide 4: Operating Performance | Mining Segment
Operating Performance | Mining Segment Zinc Production (kt) Consolidated Costs Cerro Lindo El Porvenir Atacocha Vazante Aripuanã Cash cost net of by-products¹ 0.08 +13% US$0.04/lb vs. 1Q26 vs. 2Q25 159 +8% (0.11) 141 US$(0.35)/lb 1H26 1H26 Below guidance 2026 Guidance 79 79 Upper Range 74 Lower Rang
Slide 5: Aripuanã 2Q26 Performance
Aripuanã 2Q26 Performance A Long-life Asset Delivering Steady Improvements 1 Treated ore: 399kt +33% vs. 2Q25 Zn production: 8.8kt +44% Highlights: 4th tailings filter commissioning and 2 start-up concluded. Scheduled maintenance: ball mill liner replacement 4th tailings filter Video Link Achieved O
Slide 6: 2Q26 | Cerro Pasco Integration
2Q26 | Cerro Pasco Integration Execution making steady progress. Project's long-term configuration reviewed Scope & CapEx Update וATA open-pit operation extension: sustaining production levels for longer, enabling the deferral of Phase II Capex. וCapEx revision drivers: early expansion of tail
Slide 7: 1H26 | Exploration
1H26 | Exploration Encouraging results across core operating districts and a diversified growth pipeline. Cerro Lindo: Meters Drilled1: 35,372 Infill drilling to enhance resource Vazante confidence. Meters Drilled1: 34,003 ~37,832m planned in 2H26. Conexão Sucuri Norte: 5.1m @ Focus: expand known (1
Slide 8: Operating Performance | Smelting Segment
Operating Performance | Smelting Segment Total Sales | Zn Metal + Oxide (kt) Consolidated Costs Cajamarquilla Três Marias Juiz de Fora +2% Cash cost net of by-products¹ 1.34 US$1.42/lb 1H26 -8% 275 281 145 147 134 US$1.44/lb vs. 1Q26 vs. 2Q25 1.15 1H26 above upper end of guidance 2026 Guidance Upper
Slide 9: 2Q26 | Consolidated Financial Results
2Q26 | Consolidated Financial Results Net Revenues1 (US$ million) LME Zinc Prices (US$/t) 3,351 2Q26 Net Revenues • QoQ: resilient prices and higher 2,741 3,241 3,466 mining sales volumes, partially 2,641 +2% +28% offset by lower smelting sales +2% +34% (vs. 1Q26) (vs. 2Q25) volumes. 1,796 • YoY: st
Slide 10: 2Q26 | Investments
2Q26 | Investments Capex (US$ million) וUS$160 million Expansion Projects 381 Sustaining invested in 1H26 5 Mine Development Tailings Storage Facilities וUS$89 million in 2Q26 129 HS&E Others¹ ו2026 guidance 122 160 unchanged 44 89 72 27 43 8 7 (6) 2026 Guidance 1H26 Mineral Exploration and
Slide 11: 2Q26 | Free Cash Flow
2Q26 | Free Cash Flow (US$ million) Avg prices: Zn (US$/t): 3,466 / Cu (US$/t): 13,329 / Pb (US$/t): 1,954 Ag (US$/oz): 73.1 / Au (US$/oz): 4,506 286 286 0 (92) Total Working Capital & Other Variations: US$(82) million (93) 120 (3) (22) 48 (4) (131) (10) Adjusted Other non- Operating cash Capex Inte
Slide 12: 2Q26 | Liquidity, Indebtedness and Credit Rating
2Q26 | Liquidity, Indebtedness and Credit Rating Debt profile (as of Jun 30, 2026). Long-term avg. debt maturity: 7.0 years @6.22% avg. cost Debt amortization schedule (US$ million) Gross debt: US$1,750 Bonds Outstanding 707 608 RCF (1) 320 530 Rating Outlook / Rating Agencies Watch Investment Grade
Slide 13: Zinc and Copper Markets
Zinc and Copper Markets Zinc LME price evolution1 (US$/t) Zinc: Strong fundamentals and geopolitical risks continue to support 2Q26 avg. prices. Zn LME up 31% y-o-y, averaging US$3,466/t in 2Q26 3,466 וSmelter margins remain compressed: spot TCs in China fell further into negative territory, endi
Slide 14: Silver and Gold Markets
Silver and Gold Markets Silver LBMA price evolution1 (US$/oz) Silver: reached US$86.8/oz in May before retracing וFundamentals shifting consultants project a more balanced silver 2Q26 avg. market, supported by increased production and substitution 73.1 across selected applications. וWeaker exp
Slide 15: ESG 2Q26 Highlights & Strategic Governance
ESG 2Q26 Highlights & Strategic Governance וStrengthened safety controls and reduced personnel exposure, with remote-operated underground blasting and the start of block caving at Cerro Lindo. וCommunity investments across Brazil and Peru, including health campaigns and Safety & Community educ
Slide 16: Strategic Catalysts & Our Focus and Priorities
1 Aripuanã ו4th tailings filter commissioned and operational: unlock full production to enhance cash generation. Strategic וLoM1 = 15y (reserves)²; 25y+ (resources)³. Catalysts & 2 Cerro Pasco Integration Project וWell-known, high potential polymetallic district. Our Focus and וStrengthe
Slide 17: Thank you!
Thank you! IR Contact: ir@nexaresources.com https://ir.nexaresources.com