The most common Hong Kong banknotes & coins in use are:
Banknotes: HK$100 & HK$20
Coins: HK$5 & HK$2 & HK$1
P.S.
Try to prevent getting exchange in HK$1,000 (banknote) & HK$10 (coin) if possible:
-Counterfeit has been found before in Hong Kong
-Not convenient for small purchase/get exchange
Banknotes: HK$100 & HK$20
Coins: HK$5 & HK$2 & HK$1
P.S.
Try to prevent getting exchange in HK$1,000 (banknote) & HK$10 (coin) if possible:
-Counterfeit has been found before in Hong Kong
-Not convenient for small purchase/get exchange