The Singapore Dollar (SGD) is the official currency of Singapore, first introduced in 1967. It is identified by the ISO 4217 code SGD and is commonly represented by the symbols $ or S$. The issuance and management of the Singapore Dollar are overseen by the Monetary Authority of Singapore. Commonly used banknote denominations include 2, 5, 10, 50, and 100 dollars. Additionally, there are coins in denominations of 5 cents, 10 cents, 20 cents, 50 cents, and 1 dollar. All money changers in Hong Kong facilitate the buying and selling of Singapore Dollar.

The Indonesian Rupiah, commonly known as the Indonesian Rupiah, is the circulating currency of Indonesia. The Rupiah has been in circulation since 1946. Its ISO 4217 code is IDR, and it is commonly represented by the symbol Rp. The issuance and management of the Indonesian Rupiah are the responsibility of Bank Indonesia. Currently, there are banknotes in denominations of 1000, 2000, 5000, 10,000, 20,000, 50,000, and 100,000 Rupiah. Additionally, there are coins in values of 100, 200, 500, and 1000 Rupiah. While the Indonesian Rupiah may not be a globally mainstream trading currency, the demand for its exchange remains robust in Hong Kong due to the presence of over 160,000 Indonesian residents. Currently, all money changers in Hong Kong facilitate the exchange of Indonesian Rupiah.