The Ilo Smelter modernization project began with the aim of improving efficiency in copper production to capture at least 92% of SO2 emissions and smelt 1.1 million tons of copper concentrate per year.
![2003hist](https://southerncoppercorp.com/eng/wp-content/uploads/sites/2/2022/05/2003hist-424x212.jpg)
The Ilo Smelter modernization project began with the aim of improving efficiency in copper production to capture at least 92% of SO2 emissions and smelt 1.1 million tons of copper concentrate per year.