C9 Hotelworks research shows Phuket recorded 6.13M international arrivals in Jan-Sep 2026, with THB400B in tourism revenue and 5,517 hotel keys across 30 pipeline properties.C9 Hotelworks research shows Phuket recorded 6.13M international arrivals in Jan-Sep 2026, with THB400B in tourism revenue and 5,517 hotel keys across 30 pipeline properties.