WorkVenture gives you an inside look at what it's like to work at Megachem (Thailand) PCL., office & team photos, reviews and more. This is the Megachem (Thailand) PCL. Company Page. All content is posted anonymously by employees currently or previously working at Megachem (Thailand) PCL..Apply to powerApply to AlphaApply to Bank of ThailandApply to TÜV Rheinland