The Bank of China visa card has a Hong Kong dollar account.

The Bank of China Great Wall International Card is a chip credit card launched by Bank of China that complies with international standards. It can be used at more than 29 million VISA or MasterCard merchants in 256 countries and regions around the world. The Bank of China Great Wall International Zhuojun Card provides multiple Currency (British Pound, Euro, Hong Kong Dollar, US Dollar and Australian Dollar) and titanium and ordinary cards are available.

Visa card is a type of foreign currency card. Common ones include UnionPay card, MasterCard, etc. UnionPay cards are mainly used within China, while foreign currency cards are used abroad. If there is a Visa logo on the card, it can be used at any POS terminal and ATM machine abroad.