Carbon Composite Agglomerates (CCB) are the mixtures of fine iron ore (hematite, magnetite, iron-bearing ironmaking dust, and pre-reduced iron-bearing ore fine) and fine carbonaceous materials (fine coke fine coal, charcoal, and char) adding some binding agents in most cases. CCBs were tested in some practical blast furnaces and it revealed that the use of CCB can improve the energy efficiency of a BF. Furthermore, the effective use of non-coking coal, and iron-bearing dust and sludge in steel works would extend the variety of raw materials and promotes resource recycling.