Teck's Financial and Operations Outlook

Teck Zinc Guidance Production 1,2 (kt) Zinc in Concentrate Red Dog Zinc in Concentrate Sales¹ (kt) Net Cash Unit Costs* 1,3 (US$/lb) 644 Antamina (22.5%) 104 565-630 45-60 555-615 95-105 465-525 55-65 400-445 35-45 135 89 540 Red Dog 520-570 460-510 410-460 365-400 2023 2024E 2025E 2026E 2027E Refined Zinc Q1 2023 Q4 2023 Capital Expenditures¹ ($M) 0.55-0.65 0.55 0.44 70-85 Q1 2024E 2022 2023 2024E -355-415 370 275-290 270-300 270-300 270-300 Trail Operations 267 Growth 37 298 100-130 Capitalized Stripping 89 70 65-75 76 Sustaining 244 152 190-210 2023 2024E 2025E 2026E 2027E * Net cash unit costs per pound is a non-GAAP ratio. See "Non-GAAP Financial Measures and Ratios" slides. 2022 2023 2024E 20 20

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