315 baht (21 provinces) Kanchanaburi, Chai Nat, Nakhon Phanom, Nakhon Sawan, Nan, Beung Kan, Buriram, Prachuap Khiri Khan, Phayao, Phatthalung, Phitsanulok, Petchburi, Phetchabun, Yasothon, Roi Et, Loei, Sa Kaeo, Surin, Ang Thong, Udon Thani, and Uttaradit