Table 6.10
Direct 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 | 2,837.8 | 2,954.9 | 3,738.4 | 4,058.7 | 4,349.2 | 4,447.4 | 4,574 | 4,644.7 | 4,816.6 | 5,104.9 | 4,990.4 | 5,026.4 | 5,377 | 5,711 | 5,872.5 | n.d. |
| Underground mining | 52.5 | 69.8 | 47.7 | 53.4 | 85.1 | 88.6 | 105 | 122.4 | 83.2 | 104.4 | 112.8 | 126 | 130.8 | 119 | 134.8 | n.d. |
| Concentrator plant | 36.9 | 48.6 | 47.4 | 57.8 | 56.2 | 61.1 | 66.7 | 85.2 | 79.5 | 100 | 105.7 | 100.6 | 119.3 | 145.1 | 126.7 | n.d. |
| LX-SX-EW | 441.9 | 383.9 | 389.3 | 301.6 | 312.9 | 289.1 | 291.3 | 257.3 | 296.1 | 326.3 | 337.9 | 341 | 321 | 311 | 259.3 | n.d. |
| Smelter | 523.4 | 523.4 | 514.4 | 452 | 506.7 | 471.9 | 488.5 | 494.1 | 443.1 | 373.4 | 407.8 | 416.3 | 416.3 | 409.5 | 369.5 | n.d. |
| Refinery | 60.1 | 59.3 | 102.5 | 82.1 | 124.3 | 106.8 | 84.1 | 89.5 | 109.3 | 99.2 | 102.7 | 108.7 | 85.6 | 88.8 | 77.1 | n.d. |
| Services | 382.7 | 356.6 | 464.9 | 290.3 | 261.7 | 241.3 | 185.5 | 280.7 | 215.2 | 195 | 181.1 | 172.3 | 177.9 | 172.6 | 289 | n.d. |
| TOTAL | 4,335.3 | 4,396.5 | 5,304.6 | 5,295.9 | 5,696.1 | 5,706.2 | 5,795.1 | 5,973.9 | 6,043 | 6,303.2 | 6,238.4 | 6,291.3 | 6,627.9 | 6,957 | 7,128.9 | n.d. |
Notes of the table
- (1) Las emisiones directas corresponden a aquellas generadas por fuentes que son propiedad o están bajo el control de la operación minera, incluyendo el consumo directo de combustibles y otras fuentes emisoras asociadas a los procesos productivos. / Direct emissions correspond to those generated from sources owned or controlled by the mining operation, including direct fuel consumption and other emission sources associated with 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.