The tragedy occurred after the La Paila river burst its banks, sending a torrent of mud, rocks and uprooted bushes hurtling through the town of Corinto, in the southwestern department of Cauca.
The bank has opened in Chile a representative office which will act as a 'bridge' between the Middle East and Latin America.
Two other offers were lower, but disqualified after it emerged that both included an individual with a false diploma.
The Brazilian company will use the proceeds to repay existing debts, reinforce working capital, and finance future investments.
With 80% of works completed, conclusion is expected for March 2018.
Both countries plan to sign a free trade agreement this week, as President Pedro-Pablo Kuczynski seeks to drum up foreign investment and expand infrastructure projects.
The authority of Mexico's Veracruz port opened technical bids for the last of four contracts to build terminals under the expansion project.
The two contracts are worth US$130mn, and works are expected to begin in February.
The concessionaire is concerned that the short distance between Tancredo Neves and Pampulha airports in Brazil's Minas Gerais state will lead to less demand, thus threatening investments.