The highest market share of credit cards in Hong Kong is HSBC, which offers the most discounts among different businesses in Hong Kong. Secondly, Citigroup, Standard Chartered, Hang Seng, Bank of China and American Express also have certain target customers and market share, and many businesses also have discounts. For example, American Express has a good mileage points program; Bank of China and Hang Seng often offer discounts in supermarket chains and department stores, such as Wanning, Parknshop and Muji. Standard Chartered and Citigroup often offer discounts at sporting goods stores and travel agencies.
If you want to find a credit card with the highest acceptance, the widest coverage of ATM/POS and the biggest discount in Hong Kong, it is undoubtedly HSBC. Just look at the subway advertisement. HSBC has many large credit card promotions.