The Bank of Thailand (BOT), by appointment to His Majesty King Maha Vajiralongkorn Bodindradebayavarangkun, will print and issue the new 20-Baht, 50-Baht, and 100-Baht Thai banknotes to be put into circulation starting on April 6th, 2018, Chakri Memorial Day.
To celebrate the Royal Birthday of His Majesty King Maha Vajiralongkorn Bodindradebayavarangkun, the 500-Baht and 1,000-Baht banknotes will be issued on July 28th, 2018.
For more information: https://www.bot.or.th/Thai/PressandSpeeches/Press/News2561/n1761e.pdf