DQ [DAQO NEW ENERGY] SC 13G/A: 1 Name of reporting person Guangfu Xu (Mr.
[1 Name of reporting person Guangfu Xu (Mr. Xu) 2 Check the appropriate box if a member of a group ¨ ¨ (a) 3 SEC use only 4 Citizenship or place of organization Peoples Republic of China Number of shares beneficially owned by]