Is Changguang Jizhi a subsidiary of Chinese Academy of Sciences?

No, according to official website's inquiry, Changguang Extreme Optical Technology Co., Ltd. is a joint-stock enterprise of Changchun Institute of Optics and Mechanics of Chinese Academy of Sciences and Shenzhen Xinkailai Technology Co., Ltd., and Changchun Institute of Optics and Mechanics of Chinese Academy of Sciences holds 60% of the shares and is not a subsidiary.