RAS AL KHAIMAH, United Arab Emirates–(BUSINESS WIRE)–U.S.-operated hotel brands will account for almost half of the total portfolio of the hospitality developments within Ras Al Khaimah, United Arab Emirates. A total of 6,365 of the 12,811 hotel keys in the Emirate are set to be operated through U.S. companies and brands, making it the largest single-market share held by any group of operators. The increase in U.S.-operated keys in Ras Al Khaimah builds on the Emirate’s long-standing partners