Flag of Thailand

red : which stands for the blood spilt to maintain Thailand's independence, or often more simply described as representing Thai people.
white : which stands for Buddhism, the predominant religion of the country.
blue : which stands for the Monarchy of Thailand.

Trat Province

SaKaeo Province

Rayong Province

Prachinburi Province

Chonburi Province

Chanthaburi Province

Yala Province

Trang Province

SuratThani Province