CS.CS was established on January 18, 2018, with its registered office located in Chongqing. The company is dedicated to the design, research, development, and manufacturing of semiconductor materials, wafers, and laser chips, occupying a total area of 75 mu. It possesses a comprehensive technical team and advanced manufacturing technologies and equipment for gallium arsenide and indium phosphide epitaxial wafers, as well as laser chip production. Guided by the mission “Leading Technology, Shaping the Future,” the company upholds the corporate ethos of “Quality First, Bold Innovation, Diligence and Dedication, Green Development.” It adheres to the principles of “Health, Safety, Respect, and Mutual Success,” prioritizing product quality control and service enhancement. Customer-centric and innovation-driven, the company pursues win-win outcomes for clients, employees, and the enterprise. Primary products include: substrates, epitaxial wafers, and chips.