menu Operations Products Responsibility Careers Technology Investors COVID-19 Reserves and Resources Reserves arrow_drop_down Resources Oil and Gas Definitions Mineral Reserves as at 31 December 2020 (1) Proven Probable Total Teck Interest (%) Recoverable Metal (000 t)(2) Tonnes (000's) Grade (%) Tonnes (000's) Grade (%) Tonnes (000's) Grade (%) Copper Highland Valley Copper 267,100 0.31 134,500 0.27 401,600 0.30 100.0 1,050 Antamina Copper only ore OP 137,700 0.92 94,700 1.00 232,500 0.95 22.5 460 Copper-zinc ore OP 68,400 0.87 81,100 0.82 149,500 0.84 22.5 230 Total 206,100 0.90 175,900 0.92 382,000 0.91 22.5 690 Quebrada Blanca Heap Leach ore (3) 4,300 0.25 4,300 0.25 60.0 3 Dump Leach ore (3) 2,200 0.31 2,200 0.31 60.0 3 Total Leachable (3) 6,500 0.27 6,500 0.27 60.0 6 Quebrada Blanca - Mill 1,012,000 0.53 420,300 0.48 1,432,300 0.51 60.0 4,010 Andacollo Andacollo - Heap Leach (3) 1,000 0.19 1,000 0.19 90.0 1 Andacollo - Mill 111,200 0.32 190,300 0.30 301,500 0.31 90.0 740 NuevaUnión Relincho 576,400 0.34 977,400 0.36 1,553,800 0.35 50.0 2,390 La Fortuna 386,800 0.58 295,400 0.42 682,200 0.51 50.0 1,520 Total 963,200 0.43 1,272,800 0.37 2,236,000 0.40 50.0 3,910 Zafranal 408,800 0.39 32,000 0.21 440,700 0.38 80.0 1,150 San Nicolás 47,700 1.26 57,500 1.01 105,200 1.12 100.0 930 Molybdenum Highland Valley Copper 267,100 0.006 134,500 0.010 401,600 0.007 100.0 20 Antamina Copper only ore OP 137,700 0.035 94,700 0.034 232,500 0.035 22.5 10 Quebrada Blanca Quebrada Blanca - Mill 1,012,000 0.020 420,300 0.024 1,432,300 0.021 60.0 140 NuevaUnión Relincho 576,400 0.014 977,400 0.017 1,553,800 0.016 50.0 60 Zinc Antamina Copper-zinc ore OP 68,400 2.1 81,100 2.1 149,500 2.1 22.5 600 Red Dog Red Dog Mine 46,000 12.9 46,000 12.9 100.0 4,920 San Nicolás 47,700 1.6 57,500 1.4 105,200 1.5 100.0 1,260 Lead Red Dog Red Dog Mine 46,000 3.6 46,000 3.6 100.0 830 Proven Probable Total Teck Interest (%) Recoverable Metal (000 oz)(2) Tonnes (000's) Grade (g/t)(5) Tonnes (000's) Grade (g/t)(5) Tonnes (000's) Grade (g/t)(5) Gold Andacollo - Mill (4) 111,200 0.10 190,300 0.10 301,500 0.10 90.0 590 NuevaUnión La Fortuna 386,800 0.55 295,400 0.36 682,200 0.47 50.0 3,380 Zafranal 408,800 0.07 32,000 0.05 440,700 0.07 80.0 440 San Nicolás 47,700 0.41 57,500 0.39 105,200 0.40 100.0 240 Silver Antamina Copper only ore OP (6) 137,700 6.8 94,700 8.2 232,500 7.4 22.5 10,330 Copper-zinc ore OP (6) 68,400 12.6 81,100 13.5 149,500 13.1 22.5 10,570 Total (6) 206,100 8.7 175,900 10.6 382,000 9.6 22.5 20,900 Quebrada Blanca Quebrada Blanca - Mill 1,012,000 1.4 420,300 1.3 1,432,300 1.4 60.0 26,250 NuevaUnión Relincho 576,400 1.6 977,400 1.5 1,553,800 1.5 50.0 24,990 La Fortuna 386,800 0.9 295,400 0.7 682,200 0.8 50.0 6,200 Total 963,200 1.3 1,272,800 1.3 2,236,000 1.3 50.0 31,190 Red Dog Red Dog Mine 46,000 67.5 46,000 67.5 100.0 62,810 San Nicolás 47,700 23.9 57,500 20.9 105,200 22.3 100.0 29,100 Proven Probable Total Teck Interest (%) Clean Coal (000 t) Tonnes (000's) Tonnes (000's) Tonnes (000's) Metallurgical Coal (7) Fording River 63,800 190,100 253,900 100.0 253,900 Elkview 10,500 259,900 270,400 95.0 256,900 Greenhills 15,700 264,100 279,700 80.0 223,800 Line Creek 3,900 36,500 40,400 100.0 40,400 Quintette (Mt Babcock) 700 35,400 36,000 100.0 36,000 PCI Coal (7) Line Creek 300 6,500 6,800 100.0 6,800 Thermal Coal (7) Quintette (Mt Babcock) 900 900 100.0 900 Notes to Mineral Reserves and Resources Tables (1) Mineral reserves and resources are mine and property totals and are not limited to our proportionate interests. (2) Recoverable Metal refers to the amount of metal contained in concentrate or cathode copper. (3) For heap leach and dump leach operations, copper grades are reported as % soluble copper rather than % total copper. Soluble copper is defined by an analytical methodology which uses acid and cyanide reagents to approximate the portion of copper recoverable in the heap and dump leach processes. (4) In 2015, an interest in future gold production from the Andacollo mine was sold. Compañia Minera Teck Carmen de Andacollo has agreed to sell and deliver to the purchaser an amount of gold equal to 100% of the payable gold produced from the Carmen de Andacollo mine until 900,000 ounces have been delivered, and 50% thereafter. Reserves and resources are stated without accounting for this production interest. (5) g/t = grams per tonne. (6) In 2015, Teck entered into an agreement with a purchaser to deliver silver equivalent to 22.5% of the payable silver sold by Compañia Minera Antamina S.A. until 86 million ounces of silver have been delivered, after which the amount of silver to be delivered will be reduced by one-third. Reserves and resources are stated without accounting for this production interest. (7) Coal reserves are reported as tonnes of clean coal. (8) Coal resources are reported as tonnes of raw coal. (9) At Zafranal, gold in Oxide material is considered to be non-recoverable. 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