Teerada Ambhanwong, Managing Director and Chief Executive Officer, and Naiyana Penvutikul, Executive Director, Cosmetic Marketing Division of O.C.C. Plc. co, conducted training course “Increase Sales by providing Services that meet Customers’ Demand” to COVERMARK’s sales persons from Bangkok and the provinces, for enhancing skill and strategy on sales and services to be more effective, at Grand Howard Hotel Bangkok recently.
