Chapter 4 examines the export-import structure between Myanmar and its major trading partners, and revealed comparative advantages of major commodities are calculated. It aims to explore the trade structure to know the specialization of production that is targeted for export. When a country specializes in the production of a few goods, it exports those goods that have comparative advantage. Consequently, it increases national income, which in turn raises the level of output and the growth rate of economy. Therefore, study on the structure of trade and comparative advantage of the commodities for a country is important.