Buenaventura served as PCIB's president and chief executive officer for ten years; during this time he also served as President of the Bankers Association of the Philippines (1994-1997) and Chairman of the ASEAN Banking Council (1996-1997).
Buenaventura was president and CEO of PCIB for ten years; during this period, he also held the positions of President of the Bankers Association of the Philippines and Chairman of the ASEAN Banking Council.