A total of 17 countries and regions involving 79 companies have invested in Myanmar’s Thilawa Special Economic Zone, official report quoted the economic zone authorities as reporting Sunday. Foreign investment in the Thilawa SEZ also hit $838.3 million as of July with Singapore-based companies topping the investors in the SEZ with $372.147 million, disclosed the Directorate of Investment and Company Administration of Myanmar. The Thilawa SEZ, located at 2,400 hectares’ land in the outskirt of Yangon, represents the very first of its kind being developed in Myanmar with the other two, namely Dawei and Kyaukphyu SEZs being in progress.