Royal Group announces $300 million Koh Rong investment project The Royal Group, one of the largest investment companies in Cambodia, has announced a $285 million investment project in Preah Sihanouk, intending to making Koh Rong into a world-class resort. The announcement was made iat an event of Koh Rong Royal Silver Beach Recreation Area Project Launch Conference on Dec 28 at Preah Sihanouk...