RIO DE JANEIRO, Aug 28 (Reuters) - Brazil's struggling iron ore miner MMX Mineracao e Metalicos SA said on Thursday that its chief executive had stepped down with immediate effect.
MMX said in a statement that Carlos Roberto de Castro Gonzalez had resigned and been replaced by Ricardo Furquim Werneck Guimarães. No reason was given for the management change.
The company, part of Eike Batista's troubled conglomerate EBX Group, has had to close its last producing iron ore mine due to falling prices for the steel making commodity. The miner is trying to find a partner to expand the project and increase efficiency. (Reporting by Stephen Eisenhammer; Editing by Chris Reese)