Mining corporation Rio Tinto has approved a $3.5b investment in its futuristic Koodaideri iron ore mine in Western Australia’s Pilbara region.

Rio Tinto chief executive Jean-Sebastien Jacques said Koodaideri is a game-changer for Rio Tinto, being the most technologically advanced mine they have ever built, featuring robotic trains and advanced analytics.

Construction is set to begin next year, with the first iron ore expected in 2021.