Shanghai Tunnel Engineering Co., Ltd. consults, plans, designs, invests, constructs, and operates urban infrastructure in China, Hong Kong, India, Singapore, Macau, and internationally. It undertakes tunnels, rail transit, roads and bridges, gas and new energy, water and environment, underground space, and urban public space; and provides operation and maintenance services. The company also offers prefabricated civil and commercial building products; PC pre-cast components; and digital solutions, software products, and systematic professional services in the field of infrastructure. In addition, it researches, develops, and sells shield tunneling machines; and industrial funds, financial leasing, and factoring services. The company was founded in 1965 and is based in Shanghai, China.