Almalyk Mining and Metallurgical Company (AMMC) has awarded Metso Outotec an order worth €70 million ($74 million) for the delivery of two sulphuric acid plants to be built for its zinc roasting facility in Almalyk, Uzbekistan.

Metso Outotec’s scope of delivery includes the design and delivery of Planet Positive equipment for two gas cleaning and sulphuric acid plants, which will process all off-gases from the zinc roasters into industrial-grade sulphuric acid, Metso Outotec says. In addition, Metso Outotec will deliver utility facilities, such as a common cooling tower system and a common air compressor system.

The two plants to be delivered by Metso Outotec will be identical and replace AMMC’s existing facilities for gas cleaning and sulphuric acid production, it said. The plants will improve operational efficiency and reliability and significantly reduce the facilities’ environmental impact, the company added, with the plants expected to be operational by the end of the second half of 2025.

Hannes Storch, Vice President, Metal and Chemical Processing at Metso Outotec, said: “We are extremely pleased that Almalyk has again selected us as the partner for providing gas cleaning and sulphuric acid technology. Metso Outotec’s advanced Planet Positive gas cleaning and sulphuric acid plant solution will improve the environmental performance of AMMC’s metallurgical operations.”