Hello, are you asking what is the relationship between 4D Numerical State and 4D Tuxin? The relationship between 4D Numerical State and 4D Tuxin is that 4D Numerical State is a subsidiary of 4D Tuxin. Ltd. is a subsidiary of Beijing Siwei Tuxin Technology Co., Ltd (listed on the Shenzhen Stock Exchange 002405), which is an excellent enterprise with considerable scale and influence in the industries of geographic information, automatic driving and artificial intelligence. Ltd. is a large-scale comprehensive enterprise, and has formed a healthy industrial chain and ecological closed loop with its partners, mainly covering GIS software system development, navigation electronic map, location big data application, drone inclined photogrammetry, smart city construction, artificial intelligence research and development.