Metso Corporation[2] (natively Metso Oyj) was a Finnish industrial machinery company focusing on providing technology and services for mining, aggregates, and oil and gas, recycling, pulp and paper and other process industries.

The Metso Foundries Karlstad unit specialized in casts of wind power components, diesel engine blocks and Yankee cylinders for paper machines.

In the same year, Metso entered into a combination agreement with Tamfelt, one of the world's leading suppliers of technical textile.

In 2012, Metso agreed to form a joint venture with China's LiuGong Group to develop the track-mounted crushing business in China, consolidated its valve operations in the United States into new premises in Massachusetts and opened a new valve supply and service center in Vadodara, India.

In the same year, Metso acquired the Korean valve manufacturer Valstone Control Inc., U.S. software company ExperTune Inc. and 75 percent of the Chinese crushing and screening equipment producer Shaorui Heavy Industries.

In August 2013, Metso closed the acquisition of Chinese manganese steel foundry JX.

In July 2023, it was announced Metso had acquired the Perth-headquartered bulk material handling company Brouwer Engineering.