Chinese metallurgists increased emissions, but reduced air and water pollution
In April 2025, Chinese metallurgical enterprises, members of the CISA industry association, increased their total emissions by 18.3% compared to April 2024. This is evidenced by the association's data.
Despite the increase in the indicator, emissions of sulfur dioxide, particulate matter and nitrogen oxides in exhaust gases decreased by 8.6%, 4.7% and 11.2% YoY, respectively.
Total energy consumption by participating enterprises increased by 0.5% YoY in April. Combined energy consumption (electricity, gas, coal, etc.) per ton of steel increased by 0.3% YoY, while comparative energy consumption decreased by 0.2%. At the same time, electricity consumption per ton of steel increased by 2.5% YoY.
Total electricity consumption increased by 8.8% yoy. Own electricity production increased by 16.1% YoY, and its share in the total balance increased by 4.04 percentage points. The production of clean energy increased by 67.6% year–on–year, in the share of wind - by 447%, and solar - by 70.3%.
Water consumption by the association's member enterprises increased by 2.6% yoy. Water intake increased by 7.1% YoY, and the volume of reuse decreased by 2.5%. The water reuse rate fell by 0.07 percentage points to 98.38%. Water consumption per ton of steel increased by 4.6% YoY, to 2.39 cubic meters.
Wastewater emissions decreased by 9.7% YoY. The content of chemical oxygen consumption (COD) in water decreased by 19% YoY, ammonia – by 16.1%, suspended solids – by 23.2%.
The insulation level of steelmaking slag, blast furnace slag and iron-containing dust remained above 98%. The use of combustible gases, including blast furnace, converter and coke oven gas, exceeded 98%. The share of coke oven gas usage increased by 0.54 percentage points.