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st 1 QUARTER OF 2011 EARNINGS RELEASE On Monday, May 16, 2011, before the opening of BM&FBovespa's trading session. EARNINGS RELEASE AGENDA EARNINGS RELEASE AGENDA Doris Pompeu Brasil - Investor Relations Consultant Phone: (+55 11) 3254-6710 - [email protected] Vinicius Santos Silva - IR and M&A Officer Phone: (+55 11) 3152 3239 - [email protected] Further information: Access code: Magnesita Refratários Please call 5 minutes prior to the start of the call The audio of the conference will be avaiable on Magnesita’s website as of May 18, 2011. CONFERENCE CALL IN PORTUGUESE Date & Time: CONFERENCE CALL IN ENGLISH Date & Time: Presentation: Connection numbers: Tuesday, May 17, 2011 - 9:00 a.m. (US EDT) / 10:00 a.m. (Brasília time) , 2011 - 10:30 a.m. (US EDT) / 11:30 a.m. (Brasília time) Flávio Rezende Barbosa - Financial and Investor Relations VP As of 8:00 a.m. (US EDT), on May 17, 2011, the slide presentation will be available on the Company´s website for both viewing and downloading. Participants may have access either by phone or by webcast, whose access link will be located on the Company's website. Participants calling from Brazil: (+55 11) 4688-6361 Participants calling from other countries: 1-786-924-6977 Tuesday, May 17
