Notice to the Market – Closing of the fifth period for the conversion of Units

NOTICE TO THE MARKET
LAST CONVERSION PERIOD WILL BEGIN NEXT MONDAY

Rio de Janeiro, June 6, 2013 – Contax Participações S.A. (“Contax” or “Company”) hereby informs its shareholders, investors and the market in general that, pursuant to the Minutes of the Board of Directors’ Meeting held today June 06, 2013, the fifth period for the conversion of shares as part of the Units Program has now closed.

By the end of the period, 1,880,484 common shares issued by the Company had been converted into preferred shares and 4,714,748 preferred shares issued by the Company had been converted into common shares. As a result of these conversions, 65.2% of Contax’s total capital stock is now in the form of units.

The last conversion period will begin next Monday, June 10, 2013 and will be closed on June 12. The procedures and terms for the conversion of shares which are not Share Multiples (“Conversion”) and the issue of the corresponding Units are detailed in the Material Fact of April 25, 2013.