Gaming cruise operator Macau Success will continue to increase its investment in Macau's gaming and entertainment business, according to executive director Marco Lee Siu-cheung. The company yesterday reported a 23 per cent rise in net profit to $5.3 million in the six months to March. Operating profit grew 58 per cent to $15 million and operating margin jumped from 9.5 per cent to 31 per cent. Revenue from its main profit contributor - the casino cruise - shot up 293 per cent to $47 million. Turnover dived 51.9 per cent from $104 million to $50 million, which Mr Lee said was linked to the disposal of the non-core construction and retail businesses.