The Bank of Thailand (BOT) has announced two designs of THB 100 commemorative banknotes honoring Queen Sirikit The Queen Mother and Princess Bajrakitiyabha, following royal permission. The bank has produced 10 million notes of each design. They will be available for exchange at face value from December 21, 2026, through outlets including commercial banks.
The fronts match the current Series 17 THB 100 polymer banknote, while the reverse designs depict the royal figures’ duties and initiatives. Special fluorescent elements display colors and patterns under ultraviolet light that differ from circulating banknotes. The BOT has also produced 2 million souvenir folders, priced at THB 10 per set, with all sales proceeds to be presented to the king for royal charities.