SOURCE: MMX

June 23, 2008 09:24 ET

MMX Reminder: Record Date for Withdrawal Rights Period

RIO DE JANEIRO, BRAZIL--(Marketwire - June 23, 2008) - MMX Mineração e Metálicos S.A. ("MMX" or "Company") (Bovespa: MMXM3) (TSX: XMM), based on the Minutes of the Ordinary and Extraordinary Shareholders' Meeting held on June 19, 2008 at 9:00 a.m. and on the Public Announcement disclosed by MMX on that date, confirms that only shareholders holding shares as of the close of the trading session on April 8, 2008 on the São Paulo Stock Exchange (Bovespa) may exercise the withdrawal rights resulting from the approval of the partial split-up of MMX.

For additional information, please contact ri@mmx.com.br.

MMX Mineração e Metálicos S.A.

Nelson José Guitti Guimarães
Chief Financial and Investor Relations Officer