Korean currency
In 1902, won was introduced as the official currency unit replacing yang at 1 won = 5 yang. The bank of Korea was established 1909 but soon after in 1910, Imperial Japan annexed Korean Empire. Under Colonial rule, the country was made to use the currency unit "yen" in the name of Korean yen, which took over the Korean won at par. After the division of Korea, the state of South Korea was established and recognized in 1948, and won was again made the official currency of the new state. "jeon" was made the subunit of the currency that divided it into 100 equal parts. Bank of Joseon issued the currency for independent South Korea for the first time that too in banknotes only.
Delta Asia Financial Group
Although virtually every bank in Macao handled North Korean funds, U.S. regulators singled out Banco Delta Asia because the shutdown of a smaller bank would create less financial disruption. North Korea was able to gain access to funds deposited at the bank by raising the issue with the United States at the Six-party talks on nuclear weapons technology in Beijing. However, the bank remains under U.S. sanction and is therefore unable to conduct business in either U.S. dollars or in Hong Kong dollars. The sanctions are said to have intimidated other banks from doing business with North Korea and disrupted the country's system for transferring foreign exchange. Macau has responded by stepping up enforcement of anti money laundering laws.