Bangkok Expressway and Metro (BEM TB)

Bangkok Expressway and Metro Public Company Limited (BEM) is a Thai public transportation company that constructs, operates, and manages expressways and rapid rail transit systems. It operates multiple metro lines and expressways in Bangkok, and also engages in commercial development activities such as retail space rental and advertising within its transportation networks. The company is headquartered in Bangkok, Thailand, and was founded in 1998, with the current entity formed by a merger in 2015.