The underground Ben Thanh metro station, considered the central station for Ho Chi Minh City’s first metro line project, is 99 percent complete, according to the municipal Management Authority for Urban Railways (MAUR). An underground pathway linking Ben Thanh Station with Opera House Station on Ho Chi Minh City’s metro line No. A construction worker cleans a handrail at the underground Ben Thanh station, which will service Ho Chi Minh City’s metro line No. Photo: Chau Tuan / Tuoi TreEngineers work on the underground Ben Thanh station, which will service Ho Chi Minh City’s metro line No. Photo: Chau Tuan / Tuoi TreEngineers work on the underground Ben Thanh station, which will service Ho Chi Minh City’s metro line No.