Stockbroker Gilbert Yeung attacked an American-Korean banker after a row over a woman, a court heard yesterday. The 29-year-old eldest son of Emperor Group boss Albert Yeung Sau-shing - incensed when the banker refused to allow his girlfriend to accompany him - and three others allegedly attacked Kim Hok-yung, 34, after a night out in Lan Kwai Fong. Yeung denied causing bodily harm on December 14, and the prosecution offered no evidence because Mr Kim was not in Hong Kong. Magistrate Barnabas Fung dismissed the charge after Yeung agreed to be bound over to keep the peace for 18 months at a sum of $5,000. The prosecution told Western Court Yeung had gone to a bar and met a 22-year-old Norwegian woman who was with Mr Kim. When she and Mr Kim left an hour later, Yeung insisted on driving her home. Mr Kim told Yeung to go away, but was struck on the head from behind. He was chased and beaten up by a gang of four, including Yeung, the court heard. Mr Kim needed hospital treatment for bruises on his shoulders, cheek and forehead. Earlier at an identification parade at Central police station, he picked out Yeung as one of his attackers. Yeung quit working for Emperor - which has its core business in financial services, jewellery and watches - in January last year.