Table 6.11
Indirect Greenhouse Gas Emissions in Chilean Copper Mining by Process
Unit: kt CO₂ equivalent · Cochilco, Anuario Cochilco 2025 · 2010 to 2025
| Series | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Open-pit mining | 735.3 | 787.6 | 945.5 | 942.7 | 991.1 | 833.3 | 866 | 807.4 | 514 | 507.9 | 483.7 | 514.6 | 384.1 | 318.4 | 256.3 | n.d. |
| Underground mining | 131.1 | 166.9 | 207.7 | 221.3 | 206 | 152.6 | 169.6 | 148.6 | 176.4 | 241.2 | 267 | 301.3 | 238.7 | 182.3 | 166.3 | n.d. |
| Concentrator plant | 4,238.6 | 5,009.7 | 6,042.5 | 6,786.7 | 6,586.1 | 6,542.8 | 7,367 | 7,229.4 | 6,025.5 | 5,401.6 | 5,437.2 | 5,685.6 | 4,283 | 3,462.6 | 3,191.9 | n.d. |
| LX-SX-EW | 4,166.2 | 4,400 | 4,585.9 | 4,704.3 | 4,331 | 4,219.1 | 4,099.4 | 3,952 | 2,326.6 | 2,119.6 | 2,005.9 | 2,000.2 | 1,578.6 | 1,170.5 | 891.4 | n.d. |
| Smelter | 840.6 | 874.9 | 1,029.6 | 1,085 | 1,005.1 | 846.7 | 925.7 | 948 | 696.2 | 652.6 | 686.9 | 724.9 | 529.8 | 387.1 | 291.6 | n.d. |
| Refinery | 203.5 | 201.7 | 184.1 | 178.8 | 169 | 171.3 | 188.2 | 152.6 | 139.7 | 119.8 | 127.1 | 124.3 | 87.4 | 67.4 | 48.5 | n.d. |
| Services | 600.5 | 485.5 | 718.9 | 755.3 | 752 | 1,192 | 1,246.5 | 1,357 | 1,064.7 | 1,082.8 | 1,210.8 | 1,333.2 | 1,056 | 285.4 | 252.4 | n.d. |
| Seawater use | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | n.d. | 632.4 | 633.5 | n.d. |
| TOTAL | 10,915.8 | 11,926.3 | 13,714.2 | 14,674.1 | 14,040.3 | 13,957.8 | 14,862.4 | 14,595 | 10,943.1 | 10,125.5 | 10,218.6 | 10,684.1 | 8,157.6 | 6,506.1 | 5,731.9 | n.d. |
Notes of the table
- (1) Las emisiones indirectas corresponden a aquellas asociadas al consumo de electricidad utilizado en los procesos productivos de la minería del cobre. / Indirect emissions correspond to those associated with electricity consumption used in copper mining production processes.
- (2) Información correspondiente al año 2025 no disponible al momento de cierre de esta edición del Anuario. / Information for 2025 was not available at the closing date of this edition of the Yearbook.
Source stated in the table
Comisión Chilena del Cobre (COCHILCO), en base a información reportada por las empresas mediante encuesta anual. / Chilean Copper Commission (COCHILCO), based on information reported by companies through an annual survey.
Source: Chilean Copper Commission (Cochilco), Cochilco, Anuario Cochilco 2025 (XLSX), 2026. Read on Oct 6, 2026.
n.d.: no data · n.a.: not applicable · “< 1”: less than one unit.