Of this, 19.9 million tons were blast furnace slag (BFS) and 15.9 million tons were steelwork slag (SWS). Thanks to an additional 0.6 million tons of stockpile reduction, a total of 20.5 million tons of BFS and 13.3 million tonnes of SWS were used primarily as building materials and fertilizers as well as in metallurgy. As a result, the by-products…