Global: Performance and progress - Resources
In 2014, 81% of our steel production residues were converted to by-products, either within our own business or through third parties. Internally, we re-used 18 million tonnes of slag in 2014. Both these results were the same rate as achieved the previous year. In mining, 10% of our residues were re-used as by-products, a slight decrease over 2013. Meanwhile, 11 million tonnes of slag from our steelmaking processes were sold to the cement industry in 2014 for use in place of clinker, enabling them to avoid over eight million tonnes of CO2 emissions.