Rosprirodnadzor sent documents to the court to suspend the operation of Moskoks plant in Vidnoye, which belongs to Mechel. The enterprise was found guilty of styrene emissions in 2021. Moskoks has a capacity of 1.1 million tons of gross coke per year with a moisture content of 6%. The total coke production capacity of all Mechel is about 2.7 million tons per year.