Collahuasi is the only mining company in Chile to assure its carbon footprint.

For Collahuasi, care for the environment and its protection are a priority that is mirrored in all its processes since this allows the Company to manage its business in such a way as to foster its long-term sustainability.

Commitment to our surroundings and the environment

  • To manage environmental aspects in line with the undertakings established in our Environmental Authorisation Resolutions (RCA) and environmental permits.
  • To strive to generate the least possible impact on the areas where we operate.
  • To monitor permanently – and preventively – all aspects related to care for our surroundings.

In an area where water resources are scarce, it is essential to ensure their availability for consumption by the different activities that take place there. In order to combine this requirement with its environmental undertakings, Collahuasi implements a strategy aligned with Chile’s National Policy on Water Resources in a bid to achieve:

  • Balanced use of this resource.
  • Protection of biodiversity.
  • Supply security for its mining operation.

Collahuasi places particular emphasis on the development and implementation of biodiversity monitoring, control, mitigation and compensation plans. This reflects the great importance it attaches to full compliance with the undertakings contained in its environmental permits and established in the corresponding Environmental Authorisation Resolutions (RCA).

One example of this is its programme for monitoring the Coposa and Michincha Salt Flats and the Chiclla, San Daniel, Jachu-Ujina, Escorial, Huinquintipa and Represa Gorges, all of which are close to its operations.

At the Collahuasi Port Terminal, twice-yearly monitoring takes place and includes studies of the physical oceanography of the water column and of the biomass as well as studies of marine species, birds and mammals.

Programmes of wetland mitigation involving the replanting of species, irrigation and the artificial recharge of the springs of the Coposa and Michincha Salt Flats are implemented for the recovery of these ecosystems. Two other important initiatives are the queñoa reforestation programme and the Chiclla Wetland transplant programme.

Download the book “Queñoa, Tree of the Heights” to learn more about this environmental project.

In 2015, Collahuasi recycled 13,800 tonnes of waste, up by 1,300 tonnes on the previous year and representing 46% of the total waste generated. Progress on its Waste Management Plan was achieved principally thanks to the implementation of a yard cleaning programme.

The principal types of waste recycled were iron scrap, HDPE (high-density polyethylene commonly used as packaging), plastic bottles, paper, cardboard and electronic waste.

In addition, 100% of used oil was sent to Cementos Bío Bío for processing and use while 13,874 tonnes of scrap metal were sent for recycling or reuse and almost 250,000 plastic bottles for recycling.