Back in Cambodia since 1991, Kith Meng, 39, has built his Royal Group into an empire that owns Cambodia's biggest mobile phone company and television network and is developing a $2 billion resort and casino on a fishermen's island on Cambodia's coast. The country's most successful businessman, he supports Prime Minister Hun Sen and benefits from his ties to the government, which granted the 99-year lease on the island for his resort. Kith Meng is a Neak Oknha, an honor the royal family confers on a few of the wealthiest members of society.