As long as it is the currency of Hong Kong, it can be exchanged in major banks, and it can be exchanged with ID cards. If you change money at Bank of Communications or Bank of China, the exchange rate is higher, about a few cents, haha.
According to today's foreign exchange rate: 100 RMB =88.06 RMB,
Standard Chartered HKD 1993 is still in circulation, but the exchange value is not high now. If the quality of the coin surface is ok, it is recommended to collect it!