Retired Professor of the Institute of Chemistry, Former Vice President for Academic Affairs, University of the Philippines Diliman
Former Undersecretary (Vice Minister) for Research and Development, Department of Science and Technology (DOST), Philippines
Professor of the Department of Chemistry, University Registrar, De La Salle University
Chairperson of the Hokkaido University Alumni Association of the Philippines
Associate Professor of the Biology Department, De La Salle University
Secretary of the Hokkaido University Alumni Association of the Philippines
Professor of the Chemical Engineering, Head of the Waste and Resource Management Unit, Center for Engineering and Sustainable Development Research (CESDR), De La Salle University
Vice-Chairperson of the Hokkaido University Alumni Association of the Philippines
Associate Professor, Iligan Institute of Technology, Mindanao State University
Secretary of the Hokkaido University Alumni Association of the Philippines