The decision to now surrender all of its remaining claims recognizes the challenges of obtaining mineral exploration and development permits in the area.
Teck Resources is the latest company to explore the use of blockchain technology to track material through the supply chain, from production to final product.
The $1.4bn Andina Transfer project turned the underground operation into an open pit mine located 3,500 metres above sea level, which holds 30% of Chile’s copper reserves.
New research by UC Berkeley geochemists shows that copper in soil and seawater acts as a catalyst to turn organic matter into both methyl bromide and methyl chloride, two potent halocarbon compounds that destroy ozone.