Shanghai Tunnel Engineering Co., Ltd. (hereinafter referred to as "Shanghai Tunnel") is a limited liability company that is invested or controlled by a non-natural person. It was established on July 18, 2014 with a registered capital of RMB 300 million. The company continues to innovate technologies around the cutting-edge tunnel construction, further strengthens its strong advantages in core fields such as super-large diameter tunnels, rail transit engineering, and ultra-deep foundation pits. It is a professional company in China that has carried out the research and development and construction application of shield tunnel technology.

Shanghai Tunnel has special grade general contracting for municipal public engineering construction, first-level general contracting for construction projects, first-level general contracting for highway engineering construction, first-level general contracting for mechanical and electrical engineering construction, first-level professional contracting for tunnel engineering, first-level professional contracting for foundation engineering, first-level professional contracting for foundation engineering, Highway transportation engineering professional contracting first-class (highway electromechanical engineering sub-item) and municipal industry engineering design grade A-class qualifications, business operations include infrastructure investment, design, construction general contracting and operation and maintenance, advanced equipment manufacturing, PC prefabrication, etc. In addition to the Yangtze River Delta, Pearl River Delta, Beijing-Tianjin-Hebei, Kunming, Zhengzhou, Wuhan, Urumqi and other places, it also penetrates into international markets such as Singapore, India, and Japan. Its comprehensive strength ranks among the forefront of the industry and is very professional and development potential in China. One of the construction companies.

In recent years, Shanghai Tunnel has successfully transformed from a traditional general contractor to a design and construction general contractor and engineering general integrator, and has successively invested and built into Ningbo Changhong Tunnel, Hangzhou Qianjiang Channel, Kunming South Connection Line, Nanjing Metro Airport Line, and Hangzhou South Station. A number of major infrastructure projects such as PPP projects. Up to now, the cumulative tunnel mileage of Shanghai Tunnel has reached 795 kilometers; among which the mileage of the construction of large-diameter shield tunnels above 14 meters has been completed to account for 81% of the total mileage of the country.

With the underground space construction business as the pillar, Shanghai Tunnel has built a research and development and manufacturing capability for underground construction equipment, high-precision steel molds, precast concrete components, high-performance waterproof materials and other products, and provides customers with "pre-sales service-product design ——Product manufacturing—installation and debugging—after-sales service “one-stop professional service throughout the whole process.

Since the Shanghai Tunnel started the shield tunnel excavation test in 1958, it has independently developed more than 200 shield machines of various types, more than 70 pipe headers of various types, and nearly a thousand sets of high-precision steel molds and supporting assembly lines. As an early enterprise in China engaged in shield tunnel construction, it has always been in the leading position in the shield equipment technology sector. Shanghai Tunnel has accumulated rich experience in the research and development and manufacturing of underground construction equipment and has unique technical advantages.

Shanghai Tunnel masters the key technologies of overall equipment integration and core components design and manufacturing, and independently develops and develops soil pressure balance, mud water balance and composite series tunnel boring machines with a diameter covering 0.6m-15.76m. The products generally use international BS standards to achieve safety, environmental protection and humanized system requirements, and meet the high reliability, high efficiency, and life cycle requirements of shield structures. Realize the industrialization and mass export of domestic boring machines, and the products are exported to Singapore, India and other countries. At present, a total of 266 boring machines have been delivered and 26 export orders have been delivered.