Raw material yard management and the feeding of the blast furnacesare essential processes for an integrated steelwork, and for CSTin particular as the Company plans to raise their annual output from5 to 7.5 Mt. Accordingly, CST has developed a model of raw materialsupply that takes into account every step of the cycle. The modelincludes two complementary modules, one for supply andconsumption of the raw materials and the other one for raw materialstransport. The model has revealed the need for a significantincrease of the conveyor capacity and has made it possible to definemore appropriate priority rules.