Founded in 2017, Ningbo Yonggong Technology Co., Ltd. is a National-Level Specialized, Sophisticated, and Innovative "Little Giant" Enterprise as well as a National High-Tech Enterprise, integrating R&D, design, equipment manufacturing, and construction. As a system service provider in the field of mechanical metro cross-passage construction, the company delivers advanced tunneling equipment, cutting-edge techniques, and comprehensive engineering services.

The company's main products are special tunneling machines for mechanically excavated cross passages, including shield machines (Type I) and pipe jacking machines (Type II), with cutting diameters of Φ3290mm and Φ3685mm. The support systems include self-balancing and rear-support types. The equipment features a compact structure, intelligent operation, high tunneling efficiency, and ease of maintenance and transportation. The company's core business—cross passage construction and technical services—has been deployed in over 20 cities, including Ningbo, Beijing, Shenzhen, and Guangzhou, completing more than 300 cross passage projects. The construction process is safe and efficient, earning consistent praise from clients and general contractors. The company maintains the leading market share in the specialized field of mechanically excavated cross passage engineering nationwide.