The Hong Kong star did not respond to the accusations on his ex-girlfriend, which claimed that she was once a bar hostess.
Chinese actress Viann Zhang tearfully exclaimed that she was falsely accused of working as a bar hostess at a press conference on Sep 8.
According to the Hong Kong media, actor Ron Ng, who broke up with Viann back in July, drew a clear line between their relationship and refused to comment on the accusations.
"How do I feel hurt if I know the whole situation? The person has already spoken for herself. I wouldn't comment on anything that's unrelated to myself," the actor added when asked if he felt hurt for his ex.
Ron also calmly responded that he did "not wish to comment on her any further", when asked if he would render help to act as a character reference.
The 33-year-old claimed that he was in high spirits and was unaffected while filming for his upcoming TVB drama Triumph in the Skies II, which is slated for broadcast in 2013, on Hainan Island.