Notified on 28 July 2009, this merger operation consists of the acquisition, by the investment fund REF IV Associates Cayman LP (henceforth "REF IV Associates"), via the special purpose entity REF IV Luxembourg S.à.r.l., of exclusive control of the undertaking Crioestaminal - Saúde e Tecnologia SA (henceforth "Crioestaminal") and its subsidiaries.