Itaúsa - Investimentos Itaú S.A. (BOVESPA:ITSA4) has granted the H.I.G. Capital, LLC exclusivity to negotiate the possible sale of its controlling stake of oxo-alcohols and plasticizer producer Elekeiroz S.A. (BOVESPA:ELEK4). The exclusivity right for H.I.G. Capital, LLC will last for 60 days, Itausa said. The right does not impose any binding commitments to reach any deal, and both companies could end talks for any reason.