UnionPay credit cards issued in Hong Kong can be classified into 4 levels: classic card, gold card, platinum card and diamond card, while diamond card is the most premium one.
Cardholders of UnionPay Diamond Card can enjoy free access to Plaza Premium lounge up to 3 times a year and other exclusive offers, such as hotel dining discounts and movie ticket buy 1 get 1 free. Applicants with a minimum annual salary of HK$150,000 are able to apply.