He is the General Manager of Ghana National Trading Corporation (GNTC), and is responsible for the overall administration of GNTC department stores throughout Ghana. He has served in several positions within GNTC since 1976. Prior to joining GNTC he was a manager with Kingsway Stores, a division of UNC, from 1967 to 1975. Mr. Larbi-Siaw has traveled throughout Europe for study and business. He has attended several seminars and training courses in marketing and management.

Mr. Larbi-Siaw holds a B.Sc. degree in Economics from the University of Ghana (1967), and a Post-graduate Diploma in Marketing from The Research Institute of Management in Delft, The Netherlands (1983) .