1 Ringgit

Brunei's Currency and Monetary Board has maintained a Currency Interchangeability Agreement with Singapore since 1967, meaning this note was — and remains — accepted at par in Singapore as "customary tender." Few bilateral currency arrangements of this kind have survived as long or functioned as smoothly, largely because both economies kept their inflation rates close enough to make parity politically painless.

Thomas De La Rue printed the series throughout the run, consistent with Brunei's long-standing relationship with the firm dating back to pre-independence issues.