Lien Ninh Transport and Service Joint Stock Company is a Vietnam-based public passenger transportation and automotive support services provider. Founded in 2005 and headquartered in Hanoi, Vietnam, the company primarily operates within the municipal public transit sector, serving urban commuters, students, and general passengers across the greater Hanoi metropolitan area. The company organizes its operations across four primary business segments: Public Passenger Transportation, Automotive Repair and Maintenance, Petroleum and Fuel Distribution, and Parking and Depot Services. The company's core products and services include subsidized intra-city public bus passenger transportation across contracted municipal routes in Hanoi; comprehensive vehicle maintenance, automotive repair, technical inspection, and genuine spare parts replacement for buses and commercial fleet vehicles; retail distribution of diesel fuel, gasoline, lubricants, and automotive consumables through dedicated fueling stations; and fleet parking management, vehicle storage, and terminal staging operations. In recent developments, Lien Ninh Transport and Service Joint Stock Company is actively advancing a strategic fleet modernization and green transition program aligned with national and municipal clean-energy public transit directives, initiating the phased transition from conventional diesel buses toward compressed natural gas (CNG) and electric vehicles. The company is also upgrading its depot infrastructure to accommodate alternative fuel charging and maintenance requirements, deploying digital smart-card ticketing and automated fare collection systems across its active routes, and restructuring operational logistics under updated service contracts with the Hanoi Department of Transport to improve route efficiency, reduce emissions, and elevate transit service standards.