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BRASILIA, Oct 15 (Reuters) - A unit of Brazilian tycoon Eike Batista's iron-ore mining company MMX Mineracao e Metalicos SA made an "urgent" bankruptcy protection petition before a Brazilian court on Wednesday.
MMX Sudeste Mineracao SA made the request after negotiations with creditors and efforts to seek new investors failed, MMX said in a filing. (Reporting by Bruno Marfinati; Writing by Alonso Soto; Editing by Ken Wills)