Bt9m sign for Patong Hill, Phuket A computer-generated image of how the sign and lookout area will appear when completed. The current state of the project on Patong Hill road. PHUKET: -- Work is underway on a nine-million-baht sign welcoming motorists to Patong. Patong Mayor Pian Keesin said the sign, meant to mark the border between Kathu and Patong, is destined to become a famous Patong landmark. Construction started on April 9 and is scheduled to finish by September 5. Almost 9.1