Antofagasta PlcLSE: ANTO

Quarterly Production Report – Q1 2026 (Operating Tables in... (Report)

· Issued by Antofagasta Plc
Watch Antofagasta explain itAntofagasta plc (ANTO) Q2 2026 Earnings Call · Replay · Aug 13
Q1 2026 PR
ANTOFAGASTA PLC - Q1 2026 PRODUCTION REPORT
Operating Tables in Excel Format
15 April 2026
ANTO Operating Data
Antofagasta Operating Data
GROUP PRODUCTION AND CASH COSTS Quarter YTD % Change
2021 2022 2023 2024 2025 2026 2025 2026 Q1 26 vs Q4 25 YTD 26 vs YTD 25
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 YTD YTD
Copper production kt 183.0 178.4 181.1 178.9 138.8 129.8 181.9 195.7 145.9 149.6 173.6 191.5 129.4 155.3 179.0 200.3 154.7 160.1 161.8 177.0 143.0 154.7 143.0 (19.2) (7.6)
Copper sales kt 182.8 163.4 182.3 197.2 115.9 147.1 178.0 201.5 149.0 146.4 158.4 213.4 115.7 161.5 176.5 191.8 170.2 153.8 141.3 201.0 137.0 170.2 137.0 (31.8) (19.5)
Gold production koz 59.1 61.4 66.8 64.9 38.4 35.4 46.9 56.1 42.2 44.0 57.4 65.5 33.3 33.6 51.8 68.2 42.9 48.3 53.9 66.3 46.5 42.9 46.5 (29.9) 8.4
Molybdenum production kt 3.0 2.8 2.6 2.1 2.0 2.0 2.6 3.1 2.5 2.4 3.2 2.9 2.7 2.5 2.7 2.8 3.1 4.4 3.9 4.4 3.0 3.1 3.0 (31.8) (3.2)
Cash costs before by-product credits $/lb 1.68 1.77 1.79 1.92 2.34 2.40 2.12 2.00 2.49 2.47 2.27 2.07 2.67 2.63 2.33 2.01 2.37 2.27 2.42 2.44 2.77 2.37 2.77 13.5 16.9
Net cash costs $/lb 1.16 1.13 1.16 1.35 1.75 1.90 1.66 1.27 1.54 1.96 1.47 1.50 1.93 1.94 1.62 1.23 1.54 1.12 1.07 1.05 1.08 1.54 1.08 2.9 (29.9)
LOS PELAMBRES Quarter YTD % Change
2021 2022 2023 2024 2025 2026 2025 2026 Q1 26 vs Q4 25 YTD 26 vs YTD 25
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 YTD YTD
Daily ore throughput kt 164.5 163.3 158.0 136.6 98.8 110.1 160.7 176.7 115.5 143.4 164.1 185.5 177.1 196.2 183.0 186.0 173.5 171.2 164.1 181.1 165.5 173.5 165.5 (8.6) (4.6)
Copper grade % 0.67 0.65 0.64 0.67 0.68 0.64 0.61 0.64 0.66 0.64 0.61 0.61 0.56 0.52 0.55 0.57 0.53 0.54 0.56 0.53 0.52 0.53 0.52 (1.9) (1.9)
Copper recovery % 89.1 90.2 90.3 91.8 92.3 89.3 88.4 88.3 89.2 89.2 89.2 89.7 88.2 89.0 88.4 89.5 88.3 89.8 90.9 91.1 90.4 88.3 90.4 (0.8) 2.4
Copper production kt 84.9 84.4 81.1 74.3 54.1 44.3 87.8 88.8 59.3 69.2 81.1 90.7 55.3 77.2 92.0 95.2 69.9 73.3 73.0 79.2 66.3 69.9 66.3 (16.3) (5.2)
Copper sales kt 80.7 84.9 69.1 89.9 41.9 54.4 80.4 94.6 56.8 72.3 69.1 100.8 50.7 82.7 88.3 93.6 73.0 72.6 57.2 95.1 65.2 73.0 65.2 (31.4) (10.7)
Molybdenum grade % 0.021 0.021 0.018 0.018 0.016 0.018 0.016 0.017 0.019 0.018 0.017 0.016 0.016 0.015 0.015 0.016 0.019 0.026 0.025 0.026 0.019 0.019 0.019 (26.9) -
Molybdenum recovery % 85.3 83.9 83.9 85.1 86.5 83.9 84.8 87.1 87.3 85.5 84.6 85.0 84.9 84.9 80.9 81.4 75.8 83.7 81.9 84.4 81.4 75.8 81.4 (3.6) 7.4
Molybdenum production kt 2.6 2.4 2.4 1.8 1.4 1.4 2.1 2.4 1.8 1.7 2.4 2.3 2.2 2.0 2.1 2.0 2.3 3.5 3.0 3.7 2.3 2.3 2.3 (37.8) -
Molybdenum sales kt 2.6 2.3 2.1 2.2 1.2 1.5 1.8 2.2 1.8 1.9 2.1 2.3 2.5 2.1 1.8 2.2 2.0 3.6 3.1 3.1 2.7 2.0 2.7 (12.9) 35.0
Gold grade g/t 0.048 0.048 0.037 0.043 0.044 0.042 0.040 0.042 0.046 0.038 0.041 0.030 0.034 0.029 0.032 0.037 0.035 0.044 0.043 0.042 0.038 0.035 0.038 (9.5) 8.6
Gold recovery % 68.1 64.9 83.0 74.5 73.5 72.4 67.2 69.0 70.0 67.0 63.7 76.4 69.6 69.6 70.1 70.6 71.2 70.1 70.9 72.5 70.3 71.2 70.3 (3.0) (1.3)
Gold production koz 14.3 13.8 13.4 11.8 8.6 6.8 13.9 13.8 9.9 9.7 11.9 11.8 8.4 10.4 13.0 14.7 11.6 14.3 13.8 15.0 12.1 11.6 12.1 (19.3) 4.3
Gold sales koz 12.9 12.9 11.1 14.2 6.4 8.8 12.8 14.3 9.8 10.8 9.3 12.4 6.8 10.3 12.5 14.2 11.3 13.8 9.8 17.6 10.5 11.3 10.5 (40.3) (7.1)
Cash costs before by-product credits $/lb 1.46 1.56 1.60 1.74 1.98 2.06 1.75 1.73 2.17 1.94 1.88 1.79 2.19 2.14 2.07 1.99 2.30 2.19 2.20 2.17 2.61 2.30 2.61 20.3 13.5
Net cash costs $/lb 0.84 0.81 0.81 1.12 1.27 1.37 1.19 0.78 0.84 1.45 0.95 1.27 1.14 1.26 1.36 1.24 1.36 0.71 0.59 0.66 0.72 1.36 0.72 9.1 (47.1)
CENTINELA Quarter YTD % Change
2021 2022 2023 2024 2025 2026 2025 2026 Q1 26 vs Q4 25 YTD 26 vs YTD 25
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 YTD YTD
CONCENTRATES
Daily ore throughput kt 106.4 102.9 100.3 110.8 104.0 110.6 105.1 115.9 103.2 105.1 109.5 111.7 90.1 101.0 105.9 117.2 100.6 106.0 107.7 113.8 97.5 100.6 97.5 (14.3) (3.1)
Copper grade % 0.60 0.59 0.62 0.59 0.44 0.45 0.52 0.54 0.51 0.48 0.53 0.55 0.35 0.32 0.42 0.53 0.51 0.58 0.56 0.58 0.50 0.51 0.50 (13.8) (2.0)
Copper recovery % 84.2 85.2 84.9 84.9 81.4 78.8 79.7 81.7 83.3 82.5 82.8 84.1 81.5 75.4 79.1 83.2 81.4 83.4 84.9 83.4 83.1 81.4 83.1 (0.4) 2.1
Copper production kt 45.3 45.1 47.6 47.4 32.9 33.3 37.6 45.5 38.2 36.0 42.8 45.7 23 20.6 31.6 46.6 35.9 44.5 45.1 48.8 35.7 35.9 35.7 (26.8) (0.6)
Copper sales kt 45.1 35.7 56.3 50.6 22.5 42.0 39.0 45.1 41.0 30.5 43.1 52.3 15.3 25.0 29.5 44.8 41.9 39.3 44.4 53.0 31.4 41.9 31.4 (40.8) (25.1)
Molybdenum grade % 0.010 0.009 0.008 0.010 0.013 0.013 0.012 0.014 0.016 0.013 0.011 0.011 0.011 0.010 0.011 0.014 0.017 0.019 0.016 0.013 0.016 0.017 0.016 23.1 (5.9)
Molybdenum recovery % 39.5 53.8 43.8 46.2 59.7 61.7 58.1 49.3 71.0 68.6 67.7 58.4 67 68.7 64.2 62.7 67.2 64.2 57.0 52.3 81.8 67.2 81.8 56.4 21.7
Molybdenum production kt 0.4 0.3 0.2 0.4 0.6 0.6 0.5 0.7 0.8 0.7 0.8 0.6 0.5 0.5 0.6 0.7 0.8 0.9 0.9 0.7 0.7 0.8 0.7 - (12.5)
Molybdenum sales kt 0.4 0.3 0.2 0.2 0.4 0.7 0.7 0.6 0.8 0.7 0.9 0.6 0.5 0.5 0.6 0.7 0.7 1.0 1.1 0.7 0.7 0.7 0.7 - -
Gold grade g/t 0.22 0.23 0.26 0.25 0.15 0.15 0.17 0.19 0.17 0.18 0.22 0.26 0.14 0.14 0.19 0.23 0.17 0.17 0.19 0.23 0.19 0.17 0.19 (17.4) 11.8
Gold recovery % 71.9 72.8 69.1 70.4 66.7 64.0 64.0 65.5 65.1 66.8 67.2 66.8 64.4 61.9 67.5 69.4 66.8 68.0 67.5 67.2 64.7 66.8 64.7 (3.7) (3.1)
Gold production koz 44.9 47.6 53.4 53.1 29.8 28.6 33.0 42.3 32.3 34.4 45.5 53.6 24.9 23.1 38.8 53.5 31.3 34.0 40.0 51.2 34.5 31.3 34.5 (32.6) 10.2
Gold sales koz 42.6 35.4 61.4 54.2 22.2 36.1 34.1 39.9 33.5 24.9 45.4 59.0 16.4 27.4 34.9 54.5 37.2 31.2 35.9 54.7 29.6 37.2 29.6 (45.9) (20.4)
CATHODES
Daily ore throughput kt 56.9 55.7 60.7 57.8 55.4 57.3 55.0 52.5 49.4 53.5 65.6 64.3 54.7 60.2 64.0 61.4 57.8 52.3 54.8 50.1 59.8 57.8 59.8 19.4 3.5
Copper grade % 0.59 0.62 0.61 0.64 0.65 0.62 0.73 0.76 0.56 0.50 0.51 0.56 0.6 0.67 0.63 0.65 0.50 0.45 0.43 0.44 0.46 0.50 0.46 4.5 (8.0)
Copper recovery % 66.4 63.7 64.9 67.4 67.8 64.5 64.0 68.5 69.2 63.2 64.0 71.0 71.6 72.8 70.2 71.2 70.6 71.8 67.2 62.4 61.9 70.6 61.9 (0.8) (12.3)
Copper production - heap leach kt 20.4 19.3 22.2 23.3 22.1 21.3 23.8 27.0 18.2 14.7 20.2 22.5 21.3 27.1 25.6 26.0 19.1 15.4 15.3 13.6 12.5 19.1 12.5 (8.1) (34.6)
Copper production - total kt 21.5 20.2 23.2 24.0 22.9 22.2 24.9 28.2 19.5 15.5 21.1 23.2 22 27.4 26.1 26.5 19.8 16.1 16.0 14.3 13.0 19.8 13.0 (9.1) (34.3)
Copper sales kt 21.8 16.8 25.0 24.8 22.6 20.0 26.7 28.2 21.5 15.6 20.9 23.1 21.2 25.9 27.7 23.1 24.7 16.0 14.6 16.5 12.6 24.7 12.6 (23.6) (49.0)
Total copper production kt 66.8 65.2 70.7 71.4 55.8 55.6 62.5 73.7 57.7 51.5 63.8 68.9 45 48.0 57.7 73.1 55.6 60.6 61.1 63.1 48.7 55.6 48.7 (22.8) (12.4)
Cash costs before by-product credits $/lb 1.78 1.82 1.86 2.00 2.70 2.66 2.47 2.04 2.66 3.01 2.54 2.19 3.23 3.38 2.48 1.80 2.31 2.11 2.29 2.35 2.73 2.31 2.73 16.2 18.2
Net cash costs $/lb 1.12 1.04 1.14 1.23 1.93 2.03 1.92 1.24 1.60 2.19 1.55 1.30 2.39 2.57 1.40 0.64 1.18 0.84 0.66 0.36 0.34 1.18 0.34 (5.6) (71.2)
ANTUCOYA Quarter YTD % Change
2021 2022 2023 2024 2025 2026 2025 2026 Q1 26 vs Q4 25 YTD 26 vs YTD 25
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 YTD YTD
Daily ore throughput kt 80.6 87.3 82.9 91.1 82.2 92.1 89.8 93.4 84.8 94.7 81.5 93.5 90.5 99.9 85.2 95.3 92.5 93.2 91.9 100.9 94.4 92.5 94.4 (6.4) 2.1
Copper grade % 0.35 0.34 0.33 0.35 0.31 0.32 0.36 0.35 0.33 0.33 0.34 0.34 0.33 0.32 0.32 0.31 0.31 0.31 0.30 0.35 0.31 0.31 0.31 (11.4) -
Copper recovery % 69.1 67.9 67.9 71.3 69.4 68.6 69.4 68.7 66.8 68.0 67.8 68.9 66.2 69.4 70.2 71.8 71.9 70.8 70.2 69.8 68.0 71.9 68.0 (2.6) (5.4)
Copper production kt 20.2 19.2 18.3 20.9 17.4 18.9 21.0 21.8 18.8 19.1 18.3 21.6 19.6 20.7 19.3 20.8 20.2 19.3 18.6 23.0 19.6 20.2 19.6 (14.8) (3.0)
Copper sales kt 22.9 17.2 20.3 19.9 17.4 19.7 21.1 22.6 19.1 18.3 15.7 25.3 19.2 19.2 21.3 19.5 20.8 18.6 17.4 23.8 19.5 20.8 19.5 (18.1) (6.3)
Cash costs $/lb 1.96 2.12 2.06 2.02 2.40 2.59 2.40 2.58 2.80 2.64 2.65 2.44 2.61 2.55 2.74 2.23 2.47 2.70 3.05 3.04 3.03 2.47 3.03 (0.3) 22.7
ZALDÍVAR Quarter YTD % Change
2021 2022 2023 2024 2025 2026 2025 2026 Q1 26 vs Q4 25 YTD 26 vs YTD 25
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 YTD YTD
Daily ore throughput kt 42.2 38.6 48.0 48.6 39.5 39.0 44.3 38.6 33.6 31.7 36.5 38.1 35.2 40.7 42.4 51.5 40.7 32.0 39.3 46.9 29.1 40.7 29.1 (38.0) (28.5)
Copper grade % 0.88 0.66 0.65 0.77 0.84 0.78 0.77 0.76 0.70 0.80 0.82 0.82 0.78 0.63 0.64 0.64 0.59 0.67 0.62 0.81 0.74 0.59 0.74 (8.6) 25.4
Copper recovery % 48.8 50.3 52.9 53.5 56.4 54.2 49.6 59.6 60.6 62.0 57.7 52.1 56.1 56.9 58.7 57.4 54.4 53.6 55.4 53.5 58.1 54.4 58.1 8.6 6.8
Copper production - heap leach kt 9.0 6.2 7.7 9.1 8.2 7.6 7.8 8.3 7.0 6.8 7.2 7.5 7.0 6.2 6.7 7.9 6.0 4.3 6.5 8.9 6.1 6.0 6.1 (31.5) 1.7
Copper production - total kt 11.1 9.6 11.0 12.4 11.5 11.0 10.6 11.3 10.0 9.8 10.4 10.3 9.5 9.4 10.0 11.2 9.0 7.0 9.0 11.7 8.3 9.0 8.3 (29.1) (7.8)
Copper sales kt 12.4 8.7 11.6 12.0 11.6 11.1 10.8 10.9 10.6 9.7 9.7 11.9 9.3 8.6 9.7 10.8 9.8 7.4 7.6 12.6 8.3 9.8 8.3 (34.1) (15.3)
Cash costs $/lb 2.30 2.65 2.34 2.31 2.10 2.18 2.55 2.75 2.89 3.03 2.98 2.91 2.97 2.97 3.05 3.09 3.09 3.38 3.74 3.53 3.61 3.09 3.61 2.3 16.8
TRANSPORT Quarter YTD % Change
2021 2022 2023 2024 2025 2026 2025 2026 Q1 26 vs Q4 25 YTD 26 vs YTD 25
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 YTD YTD
Rail kt 1,216 1,297 1,370 1,338 1,310 1,398 1,310 1,350 1,309 1,365 1,374 1,333 1,346 1,421 1,396 1,450 1,213 1,205 1,261 1,333 1,069 1,213 1,069 (19.8) (11.9)
Road kt 309 369 381 422 410 451 418 461 442 436 453 398 376 362 396 360 344 376 329 346 251 344 251 (27.5) (27.0)
Total tonnage transported kt 1,526 1,666 1,751 1,760 1,720 1,849 1,728 1,811 1,751 1,800 1,828 1,731 1,722 1,783 1,792 1,810 1,557 1,582 1,590 1,679 1,320 1,557 1,320 (21.4) (15.2)
COMMODITY PRICES AND EXCHANGE RATES Quarter YTD % Change
2021 2022 2023 2024 2025 2026 2025 2026 Q1 26 vs Q4 25 YTD 26 vs YTD 25
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 YTD YTD
Copper
Market price $/lb 3.85 4.40 4.25 4.40 4.53 4.32 3.51 3.63 4.05 3.85 3.79 3.70 3.83 4.42 4.18 4.17 4.24 4.32 4.44 5.03 5.83 4.24 5.83 15.9 37.5
Realised price $/lb 4.26 4.59 3.99 4.65 5.05 3.42 3.28 3.97 4.48 3.49 3.77 3.84 3.97 4.69 4.30 3.75 4.69 4.40 4.60 5.78 5.83 4.69 5.83 0.9 24.3
Gold
Market price $/oz 1,800 1,815 1,790 1,795 1,877 1,873 1,730 1,728 1,890 1,976 1,929 1,974 2,070 2,338 2,474 2,664 2,859 3,281 3,454 4,145 4,875 2,859 4,875 17.6 70.5
Realised price $/oz 1,708 1,855 1,781 1,812 2,021 1,821 1,633 1,813 2,029 1,941 1,898 2,060 2,176 2,399 2,600 2,669 3,098 3,442 3,705 4,363 5,264 3,098 5,264 20.7 69.9
Molybdenum
Market price $/lb 11.3 14.2 19.0 18.9 19.1 18.4 16.1 21.4 32.8 20.9 23.75 18.6 19.9 21.8 21.8 21.7 20.5 20.7 24.4 22.9 25.7 20.5 25.7 12.2 25.4
Realised price $/lb 13.3 19.2 20.2 18.1 19.9 16.4 16.0 28.9 37.0 12.7 25.3 13.1 21.1 24.9 19.7 21.5 19.3 22.1 28.0 18.3 31.0 19.3 31.0 69.4 60.6
Exchange rates
Chilean peso per $ 724 716 773 826 808 843 927 913 810 801 853 896 947 934 931 963 963 947 960 935 886 963 886 (5.2) (8.0)

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