Police say the suspect worked as a private instructor and hosted classes at his residence near Warden and Steeles avenues.
He is alleged to have sexually assaulted a child he was teaching on May 28.
The Toronto Police Service’s Child and Youth Support Center launched an investigation in June, which eventually led to the arrest of the suspect the following month.
Police have now released an image of the suspect and are appealing for more information.
“Police are concerned that there may be other victims,” said a press release issued Tuesday.
Guo Cheng Xia, 62, of Toronto, is charged with one count of sexual assault and one count of sexual interference.