Itaú Unibanco Holding S.A.

(new corporate denomination of ITAÚ UNIBANCO BANCO MÚLTIPLO S.A.)

CNPJ. 60.872.504/0001-23   A Publicly Listed Company NIRE. 35300010230

MATERIAL FACT

PAYMENT OF COMPLEMENTARY INTEREST ON CAPITAL

We wish to inform our Stockholders that at a meeting of the Board of Directors of ITAÚ UNIBANCO HOLDING S.A. (new corporate denomination of ITAÚ UNIBANCO BANCO MÚLTIPLO S.A.) held on August 10, 2009, it was decided:

a) to declare complementary interest on capital in the amount of R$0,20 per share, for account of the mandatory dividend for the fiscal year 2009, less 15% income tax at source, resulting in net interest of R$0.17per share, with the exception of legal entity stockholders demonstrating immunity or exemption from such tax;

b) to pay this complementary interest on capital on August 31, 2009, based on the closing stockholding position as of August 21, 2009.

São Paulo-SP, August 10, 2009.

ITAÚ UNIBANCO HOLDING S.A.

(new corporate denomination of ITAÚ UNIBANCO BANCO MÚLTIPLO S.A.)

ALFREDO EGYDIO SETUBAL

Investor Relations Officer