Collahuasi is one of the most important mining companies in the world. In 2018 it produced 559 thousand tons of fine copper, equivalent to 9.5% of Chilean copper production. Its shareholders are Anglo American plc (44%), Glencore (44%) and Japan Collahuasi Resources B.V. (12%).
During 2019, Collahuasi proposed that Metso lead the difficult and important work of upgrading its mills, a task that prior to 2019, had been handled by other contracting companies. Metso, working with Collahuasi, managed in 71 days to successfully complete the project, without accidents and to carry out the final commissioning without setbacks.
Ball mill 1012 is located in line 3 of the mines production circuit and had the potential and capacity to process more material if some modifications were made. Collahuasi decided to award the project of repowering this mill to Metso, given the previous positive experience and years the two companies had worked together.Within the mining company's overall strategy, increasing its production was an important element. Given this, expanding the capacity of its line 3 in the plant was a key factor. It is crucial to point out that this line is responsible for 60% of Collahuasi's production and was for many years the largest line in the world and is still currently one of the most important worldwide.
For Dalibor Dragicevic, Executive Vice President of Operations of Collahuasi, the project was an experience that allowed them to realize the potential of their mining work teams. "We decided to assume a leading role governed by our management model, which is the Risk Management Cycle. From that, we now have the confidence and conviction as a team that we can lead challenging, complex and demanding projects such as this one while controlling risks,” says Dragicevic.