Shanghai Tunnel Engineering Co.

Shanghai Tunnel Engineering Co., Ltd. (STEC) is a comprehensive enterprise engaged in all stages of urban infrastructure development, ranging from initial consultation, strategic planning, and financial investment to actual construction, ongoing operation, routine maintenance, and modernization. Its extensive work spans both domestic projects within China and international ventures. The company's diverse construction portfolio encompasses a wide array of critical infrastructure, including tunnels, mass transit systems (such as railways), roads and bridges, architectural and real estate developments, power generation facilities, water treatment plants, and the complex utilization of underground spaces. Beyond its construction activities, STEC also manufactures and supplies specialized heavy machinery, particularly various types of tunnel boring machines (TBMs), including slurry shields. Furthermore, it produces and distributes key construction materials, such as precast concrete, environmentally friendly concrete solutions, and asphalt-based products. Established in 1965, Shanghai Tunnel Engineering Co., Ltd. is headquartered in Shanghai, China.