How old is Cao Song? Feikai material dongmi

Cao Song: Male, born in 1983, China nationality, no permanent residence abroad, master of economics, has worked in the company since April 2007, and is currently the secretary of the board of directors and investment director of the company. Shanghai Feikai Electronic Materials Co., Ltd., Changxing Electronic Materials (Kunshan) Co., Ltd., Shanghai _ Xinkai New Materials Co., Ltd., Jiangsu Hecheng Display Technology Co., Ltd., Science and Technology Co., Ltd., Anqing Laiting Optoelectronic Technology Co., Ltd., Shanghai Kaiyun Optoelectronic Materials Co., Ltd., Vice Chairman of Guangdong Kaichuang Display Technology Co., Ltd., Shanghai Zhaofei New Materials Co., Ltd., Anqing Kaibo Optoelectronic Materials Technology Co., Ltd., Yong (