Chang Guang Satellite Technology Co., Ltd.（CGSTL）was founded in December 1st, 2014. Jilin-1 satellite constellation is a key project in progress and Phase 1 of the Project consists of 138 satellites.The phase I of the project consists of 138 satellites. CGSTL is the first commercial remote sensing satellite company in the whole industry chain, which integrates satellite research, development, operation management and remote sensing information services. CGSTL can provide customers with high time resolution, high spatial resolution, high spectral resolution, fast wide area coverage of satellite remote sensing data and comprehensive application services of spatial information based on satellite remote sensing data.