The article discusses various reports published within the issue including one by J. Y. Shi, D. L. S. McElwain, and L. J. Wibberley on a modeling model of a novel coal based on iron ore direct reduction process and another by V. Singh, V. Tathavadka, Mohan S. Rao, and S. Kumar on the effect of chrome ore granulometry on sintered pellet properties.