Kuala Lumpur: Hong Leong Company (Malaysia) Bhd’s strategy in buying into UK casino and bingo-club operator, Rank Group plc, remains unclear even as it moves closer towards a 30% shareholding threshold requiring a takeover offer, industry observers said. As of Aug 12, Hong Leong, controlled by billionaire Tan Sri Quek Leng Chan, had increased its stake in Rank to 22.3% from 18.1% on July 22.