Economy Thailand is Southeast Asia’s second largest economy with a gross domestic product (GDP) of around USD 300 billion. With a free-market economy, the Kingdom has a strong domestic market and a growing middle class, with the private sector being the main engine of growth. The Thai economy is well integrated into the global marketplace, with exports accounting for over 70 percent of the Kingdom’s GDP. Thailand also has a strong industrial sector (40 percent of GDP) and a robust and growing services sector (50 percent of GDP) centered on the tourism and financial services industries.