 He was a large shareholder and board member of the Banco de Peru y Londres, the largest South American bank of its day, major shareholder at Banco Italiano.Owned a large "sodium nitrate" mine called Compania Salitrera La Aguada de Pisagua (mineral fertilizer saltpeter), silver and zinc mines under Minera Nueva Italia, and owned 60% of the Compania Nacional de Cerveza, maker of Pilsen Callao (this brewery and the industrial/financial conglomerate attached to it was the last large business controlled by his heirs, it was sold to a competitor in 1994).He also had land development businesses through Cia.