China Communications Construction Group Co., Ltd., with the brand name of CCCC, is mainly engaged in the investment, design, construction and operation of transportation and urban infrastructure such as roads, water transportation, railways, and airports. It is the world's largest port design and construction enterprise, the world's leading highway and bridge design and construction enterprise, the world's leading dredging enterprise, and the world's largest container crane manufacturer. As the largest international engineering contracting enterprise in Asia with strong independent innovation capabilities, it has created multiple "world fist" projects, and has integrated service capabilities throughout the entire industry chain of large transportation and cities. It has unique advantages in internationalization, river, lake and sea governance, and other aspects.

CCCC has been engaged in infrastructure-related industries for over 100 years, with 55 wholly-owned subsidiaries, including China's earliest established dredging enterprises, port construction enterprises, road construction enterprises, and foreign contracting enterprises. It has established nearly 300 overseas institutions and conducted businesses in  157 countries and regions.