Yunnan Construction and Investment Foundation Engineering Co., Ltd.

　　Yunnan Construction and Investment Foundation Engineering Co., Ltd. (abbreviated as Yunnan Construction and Investment Foundation Company) is a subsidiary of Yunnan Construction and Investment Group. Yunnan Construction and Investment Group is a key provincial state-owned enterprise and the main body of state-owned capital investment, operation and construction in Yunnan Province's construction sector and related industries. As of February 2022, the Group's registered capital was 103.47 billion yuan, with total assets of 695.847 billion yuan and net assets of 222.117 billion yuan. In 2018, Yunnan Construction and Investment Group ranked 5th among China's Top 80 Contractors; in 2021, it ranked 66th among China's Top 100 Multinational Corporations and 157th among China's Top 500 Enterprises; it has been listed in the Engineering News-Record (ENR) Top 250 for 12 consecutive times, ranking 106th in 2021.

　　Yunnan Construction and Investment Foundation Company takes foundation engineering as its main business, including geotechnical investigation, geotechnical design, and foundation engineering construction (foundation pit support, pile foundations, earthwork). It also undertakes expressway pile foundation construction, high slope construction, soft foundation treatment, bridge construction, tunnel construction, geological disaster treatment design and construction, as well as municipal engineering construction such as road engineering, utility tunnel construction, lakeside sewage interception, and ecological corridors.

　　Relying on the Group's related resources, Yunnan Construction and Investment Foundation Company organizes and carries out domestic and overseas engineering construction. The company has consistently adhered to the philosophy of technology leadership and innovation-driven development. The company has been recognized as a National High-tech Enterprise, a Yunnan Provincial Enterprise Technology Center, a Yunnan Provincial Innovative Enterprise, and a Yunnan Provincial Geotechnical Engineering Technology Research Center, among other titles. It hosts the Gong Xiaonan Academician Workstation and has established joint R&D platforms with universities such as Zhejiang University, Xi'an University of Technology, and Kunming University of Technology to carry out scientific research and the promotion and application of new technologies related to foundation engineering. The company vigorously pursues innovation, advocates green environmental protection and coordinated development, is committed to transforming scientific research results into productivity, and actively develops and promotes four-new technologies such as prefabricated steel internal bracing construction technology, TRD method, DJP method, jet-expanded conical frustum pressure-grouted pile technology, bamboo-joint piles, rotary drilling (long spiral) down-the-hole hammer hole-forming technology, and capsule-type expanded anchor cables.

　　Yunnan Construction and Investment Foundation Company has obtained more than 80 national patents (including 15 invention patents), completed 1 provincial and ministerial-level research project, compiled 13 provincial and ministerial-level construction methods, and participated in the compilation of 5 standards and specifications. It has 8 registered civil engineers (geotechnical), 38 first-class constructors, 8 registered cost engineers, and 8 registered safety engineers.

　　In recent years, Yunnan Construction and Investment Foundation Company has completed more than 1 million meters of various pile foundation construction annually, and in 2021 it completed an output value of 2.75 billion yuan, making it the largest foundation engineering company in Yunnan Province. After more than ten years of development, the company has accumulated a large management team capable of tackling tough and difficult tasks, and has built a large number of landmark foundation projects. The company has rich experience in dealing with various complex strata: such as ultra-long rotary drilled pile construction under confined water conditions, rotary drilled pile hole-forming through multiple karst caves in karst topography, rotary drilled pile construction in large-diameter boulder and gravel strata, rotary drilled pile construction in deep backfill soil, rotary drilled pile construction in deep soft soil, ultra-long long spiral construction (over 40 meters), and ultra-deep foundation pit engineering construction under complex conditions.

　　Yunnan Construction and Investment Foundation Company upholds the corporate philosophy of "Building a solid foundation, bearing all possibilities," follows the development positioning of being specialized, refined, strong and large, and consistently adheres to the development approach of specialization and technology. It comprehensively builds an integrated development pattern of investigation, design, construction, monitoring, testing, consulting, research and development, and experimentation, wholeheartedly providing society with quality products and dedicatedly providing customers with professional services, striving to build the company into a first-class in-province and nationally renowned foundation engineering company.