.51 billion ( $ 755 million in cash and 14.2 million shares of citigroup common stock ) from corporacion ubc internacional s.a . grupo . the results of grupo cuscatl e1n are included from may 11 , 2007 forward and are recorded in latin america consumer banking . acquisition of bank of overseas chinese in 2007 , citigroup completed its acquisition of bank of overseas chinese ( booc ) in taiwan for approximately $ 427 million