AIC Brazil has recently revamped both Cosigua and Divinopolis steel plants for Gerdau Group. The project for Cosigua in Rio de Janeiro intervened on 2 stands in Mill 2, replacing DC with AC power supplies and fitting the existing plant with modern motors and ABB's ACS880 Multi drives. Inversely, the job on Divinópolis has consisted of the automation modernization on the 80 tonnes per hour pusher-type reheating furnace, raising energy efficiency. Brand-new ABB PLCs (AC800M-PM866), for combustion and movements, were included in the project's package, fitting with Siemens Simatic WinCC and HMI TP1200 Comfort Panel technology, plus Engineering and Client Stations. The reduction of heat losses and the increase in productivity that arises from cutting down furnace shutdown time has been addressed by the software upgrade, which includes new Temperature Control on three-zone, new movement controls (Entry Side, Inside Furnace, Exit Side), and new screens.Gerdau Cosigua hosts a 932,000 tonne per year steel meltshop, two section mills 1 million tonne per year in total and a 600,000 tonne per year wire rod mill. Gerdau Divinopolis is capable of producing 430,000 tonne per year of pig iron, 600,000 tonne per year of crude steel and 480,000 tonne per year of merchant bars and wire rod.