52 1899 is the number segment used by Bank of Communications UnionPay-MasterCard, and 520 169 is the gold card number segment. Although the cooperation with MasterCard is not as much as before, it still exists.

At present, the standard card has cancelled the cooperation with visa and MasterCard, and only uses the 6222 UnionPay card.

However, Youth Card and Suning Card can still apply for UnionPay-MasterCard.

There is no difference in the use of the two, except that UnionPay-MasterCard has the function of dual currency, which can be settled in US dollars when used abroad and is widely used.

Simple UnionPay cards can only be settled in RMB, and the scope of application is even smaller.