Bangkok Expressway and Metro Public Company Limited (BEM) welcome Mr.Sarawut Songsivilai, Director General of Department of Rail Transport and Delegation of Department of Rail Transport, visited the MRT Chalong Ratchadham Line (Purple Line) by taking the MRT from Tao Poon station to Khlong Bang Phai Depot to see the overall operation at Operation Control Center (OCC), Main Workshop and Driving Train Simulator