"Courtyard" is a brand name owned by Marriott. Therfore, it is not the case that Marriott is ending its association with Courtyards in Phuket or anywhere else. What may be happening id that the management contract between Marriott and the owners of the Courtyards in Phuket may be ending. This could be at the initiative of either Marriott or the owners and is fairly common. At that point the hotel will still exist, with largely the same staff other than Marriott Corporate managers, but may become a Hilton, Holiday Inn or be independent of any international management company.