Santiago: Chile’s state-owned mining company Codelco has suspended the expansion of its flagship El Teniente copper mine after identifying heightened seismic risks in parts of the underground operation. The decision underscores the growing importance of worker safety in one of the world’s largest underground copper mines.
According to the company, the expansion project has been put on hold while engineers and geotechnical experts conduct detailed assessments of seismic activity and evaluate the stability of underground infrastructure. Mining operations in the affected sections will remain suspended until safety conditions are confirmed.
El Teniente, located in central Chile, is one of Codelco’s most important assets and a major contributor to the country’s copper production. The expansion project was designed to extend the mine’s operational life and sustain output as existing ore bodies become depleted.
The suspension is expected to delay development activities and could affect future production targets if the safety review extends over a prolonged period. However, Codelco emphasized that protecting the lives of workers and ensuring the integrity of underground operations remain its highest priorities.
Chile is the world’s largest producer of copper, and any disruption at major mines such as El Teniente is closely watched by global commodity markets, as copper plays a vital role in electric vehicles, renewable energy systems, power grids, and other industrial applications.
Industry analysts note that underground mining projects are increasingly facing geological and seismic challenges as operations move deeper underground. Companies are investing in advanced monitoring technologies and stricter safety protocols to reduce risks while maintaining production.
Codelco is expected to provide further updates after completing its technical evaluation and determining when expansion work can safely resume.