Rio Tinto has pledged $87 million (£64m) to increase low carbon aluminium production in Canada.
The investment will see production increase by 45% at its AP60 smelter in Quebec – to 86,500 tonnes per year.
The company projects the aluminium market to grow at 3.3% per year during the next decade and is looking to get ahead of the trend in more sustainable ways to produce the metal.
The aluminium is made using renewable hydropower to mitigate its impact on the environment.
Ivan Vella, Chief Executive, said: “Rio Tinto is committed to strengthening its position as a leader in low carbon, hydro-powered aluminium production to meet the clear demand from our customers in North America and Europe.
“Our AP60 technology is one of the most energy efficient, environmentally friendly and cost-effective systems in commercial production today. It produces some of the world’s lowest carbon aluminium with renewable hydropower here in Quebec.”