Shanghai Tunnel Engineering Co., Ltd. engages in the consulting, planning, design, investment, construction, operation, maintenance, and upgradation of urban infrastructure in China and internationally. The company operates through Infrastructure Construction Business and Equipment Manufacturing Business segments. Its portfolio includes tunnels, roads and bridges, rail transit, water affairs, energy, construction and real estate, equipment, green materials, and underground space development projects. The company is also involved in the investment, real estate, engineering management, public facilities management, civil engineering construction, housing construction, and technology promotion and application business, as well as manufacturing, acceptance, maintenance, and testing of various shield equipment. Further, it provides architectural decoration, design, and financial services. Shanghai Tunnel Engineering Co., Ltd. was founded in 1965 and is based in Shanghai, China.