100 Baht - Rama X King's 72nd Birthday

Thailand's first polymer commemorative banknote, issued to mark Vajiralongkorn's 72nd birthday on 28 July 2024. The Bank of Thailand Note Printing Works has produced cotton-paper currency for decades, but this is the facility's first confirmed polymer substrate — an operationally significant shift, as polymer production requires distinct equipment and chemical processes that the Bangkok plant had not previously employed for circulating issues.

The transparent window, standard on polymer notes globally, is here integrated into the security architecture alongside colour-shifting ink — a combination that reflects how seriously the BOT has approached counterfeiting risk on a note almost certain to be hoarded rather than spent.