Brasília, 27 (Agência Brasil - ABr) - The president of the Banco do Brasil, Eduardo Guimarães, says that besides being the leader in individual accounts, the institution also wants to be the number one corporate bank. Guimarães reports that Banco do Brasil will be busy during the first half of this year opening 55 branches in mid-size corporations (with revenue from R$10 million to R$100 million (US$4.2 million to US$41.8 million). (AB)