Metso Outotec has been awarded a EUR 150 million contract for the delivery of key technology to the Boliden Odda zinc smelter expansion in western Norway. With the expansion, Boliden Odda is planning to increase its annual production capacity of zinc metal from 200,000 to 350,000 tonnes. Several by-products will also be produced. The project is called Green Zinc Odda, and its energy consumption is based on fossil-free energy. Metso Outotec scope of delivery includes roasting and off-gas cleaning solutions and a sulphuric acid plant. Metso Outotec will also supply hydrometallurgical equipment and technology for calcine leaching, solid liquid separation, solution purification, as well as process and plant engineering and site services. Metso Outotec deliveries will take place in 2022-2024.Metso Outotec’s industry-leading zinc processing technologies consist of several proprietary Planet Positive solutions. These sustainable and cost-efficient technologies and services enable efficient zinc and by-product recovery from a wide range of primary zinc raw material. In the roasting process, even electrical power is produced as a by-product.