Hotels Marriott to greatly expand Thailand operations By Danny King / January 31, 2013 Share 1 -- Marriott International will double its number of hotel rooms under management in Thailand, and will reflag hotels in Bangkok and Phuket. Marriott, which manages a dozen Thailand hotels totaling about 3,100 rooms, will add seven hotels owned by TCC Hotels Group totaling about 3,000 rooms. This includes the JW Marriott Pattaya Resort & Spa, Ritz-Carlton Bangkok and Hua Hin Marriott Resort & Spa — hotels that Marriott currently doesn't manage. Bangkok’s Imperial Queen’s Park Hotel and Imperial Adamas Phuket Beach Resort will both be reflagged under Marriott’s flagship badge. In all, TCC will invest about $500 million upgrading the seven properties. Follow Danny King on Twitter @dktravelweekly.