Notice to the Market – Closing of the Third Window for the Conversion of Units

NOTICE TO THE MARKET
Closing of the Third Window for the Conversion of Units

Rio de Janeiro, May 24, 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 yesterday May 23, 2013, the third period for the conversion of shares as part of the Units Program has now closed.

By the end of the period, 611,744 common shares issued by the Company had been converted into preferred shares and 4,082,614 preferred shares issued by the Company had been converted into common shares. As a result of these conversions, 56.7% of Contax‘s total capital stock is now in the form of units.

The fourth conversion period will open next Monday, May 27, 2013 and the Conversion Request Periods and Share Conversion / Unit Issue Dates must be observed.

For further details regarding the Conversion Request Periods and Share Conversion, please refer to the full notice.