Corex process is a special manufacturing process for making the production of iron more environmentally friendly by using conventional coal instead of coking coal, the customary ingredient. This plant burns uncoked coal, which means that the coking plant – one of the primary sources of emissions from an iron and steel plant – is now redundant. Corex is a smelting reduction process: Coal gasification, iron ore reduction, and liquefaction of the resulting iron are combined in one process. The gases produced can immediately be used for heating or for generating electricity in a gas and steam turbine power plant.