We have an ongoing commitment to protecting the environment, which demands that we perform each and every aspect of our daily work with the utmost care. We seek to reduce potential damage to our workers, customers, communities and environment. 


Freight and passenger trains can affect the environment. The main risks are greenhouse gas emissions, noise, waste, transporting hazardous substances and the impact on wildlife. Our greenhouse gas emissions mainly come from our diesel locomotives and many of our operations generate noise. Also, a large part of our business involves transporting, handling and storing hazardous substances, and there is a risk that any accident could impact the environment. Finally, animals such as llamas, vicuña and alpaca could be hit by our trains.


Our Environmental Policy1 provides guidance in these areas, helping us to prevent and mitigate adverse effects and use our resources responsibly.

Managing key environmental impacts

  • Atmospheric emissions: These can be reduced by maintaining and operating our locomotives appropriately.
  • Noise: We have implemented a noise control system, including practical measures such as locomotive silencers, noise barriers, a monitoring and alert system, and adapting our operations to minimise the noise that can be heard by the community.
  • Waste: We are developing a waste management plan that prioritises reducing and recycling waste, and have been operating a trackside litter clearance programme since 2011.
  • Hazardous substances: We operate a rigorous system for evaluating, controlling and managing the products that we transport, and we have a specialist multidisciplinary freight emergency management team. In 2016, we signed a clean mining logistics agreement with the port of Antofagasta2, which sets standards for the transport, storage, loading and unloading mineral concentrates at the port terminal.
  • Wildlife: Our incident response plan, coordinated with SAG3 and/or CONAF4, provides first aid to injured animals.

Monitoring and results
One of our safety goals is to achieve zero environmental incidents. In 2017, we set a target of over 3,750 reports and achieved more than 7,000. Our environmental commitments include soil, noise and water monitoring, the results of which are reported to the authorities, as required by law. There were no incidents with significant environmental impact in 2017.

2 The signatories are: Codelco, Glencore Altonorte, Minera Sierra Gorda, Empresa Portuaria de Antofagasta, FCAB and Antofagasta Terminal Internacional.
3 SAG= Servicio Agrícola y Ganadero. For more information, see
4 CONAF= Corporación Nacional Forestal. For more information, see