100 Riels - Norodom Sihamoni

P#65 replaced the earlier 100-riel design issued under the same denomination but bearing imagery tied to the Sihanouk period. The 100-riel note has effectively functioned as Cambodia's smallest-denomination paper unit for decades, largely ignored in daily commerce — the US dollar dominates urban transactions, while the riel circulates mainly in small-change situations below the one-dollar threshold. At this face value, the note costs nearly as much to produce as it is worth in exchange.

The security specification for this issue is modest: a basic watermark and a single security thread, with no color-shifting ink or microprinting reported for the series.