Abbreviation (letter) currency code: defines the name of currency, consisting of three letters, with the first two letters representing the two-letter country code defined according to ISO3 166, followed by the first letter of the currency name.

All currency pairs and other trading varieties on the foreign exchange trading platform are represented by English codes. Only by being familiar with the codes of foreign exchange trading varieties can traders choose the foreign exchange trading varieties that suit them. In the foreign exchange market, in order to improve the operation efficiency of the foreign exchange trading market, each currency needs to have standard codes and symbols. These foreign exchange trading codes are stipulated by the International Organization for Standardization.