The stirred mill installation will provide 11MW of power, which Metso Outotec said will be the largest of its kind in the country. The stirred mills are part of the company's Planet Positive sustainability range, which was launched in March and focuses on the most environmentally efficient technologies in Metso Outotec's current portfolio.

The order has been booked in company's minerals segment's September 2021 quarter orders received, and Metso Outotec did not disclose the value of the delivery.

Christoph Hoetzel, head of grinding business line at Metso Outotec, said: "We are very pleased that we have been chosen as a supplier for this project. Previously, we agreed on the delivery of a PG4265 primary gyratory crusher and three HP900 cone crushers for the same project. Our stirred milling technology with its excellent performance and ability to increase both iron ore concentrate and recovery has proven itself multiple times in the Chinese market. The new installation will also benefit from class-leading energy efficiency and wear life."

Metso Outotec offers several stirred mill technologies, including Vertimill, high intensity grinding (HIG) mills and stirred media detritors (SMD).