The validity period of a credit card is usually below the credit card number. It is usually represented by a number like "xx/xx" + "/", with the month in front and the year in the back. For example, if the validity period on your credit card is 09/18, it means that the credit card is valid until September 2018, and the card cannot be used after September.
ICBC: ICBC’s general credit cards are valid for 3 to 5 years, and some chip cards can be valid for as long as 8 years.
BoCom: General cards are valid for 5 years, credit cards issued before June 1, 2013 are valid for 3 years, and supplementary cards are valid for the same period as the main card.
China Merchants Bank: The validity period is generally 5 years.
Guangfa: Guangfa Bank credit cards are generally valid for 5 years.
Minsheng: The validity period of Minsheng Bank credit cards is generally 3 or 5 years.
Industrial Bank: Industrial Bank credit cards are generally valid for 5 years.