The Second Institute of Civil Aviation Administration of China (CAAC), referred to as CAAC ii, is the largest airport weak current product provider and system integrator in China. In September 2019, Beijing Daxing International Airport was put into operation, and CAII, as the representative of an important participant, was cordially received by General Secretary Xi Jinping.

While carrying out the non-stop construction in an orderly manner, AVIC-KDN has strengthened the cooperation with the Second Institute of Civil Aviation in the weak current engineering of the airport, further improving the quality and efficiency of the completion of the airport engineering project.