Korean currency
The yen was the currency of Korea during the Colonial rule, from 1910 to 1945, and was issued by the Bank of Joseon It was equivalent to the Japanese yen and consisted of Japanese currency and banknotes issued specifically for Korea. It was replaced by the South Korean won at par in 1945, and by the North Korean won in 1947.
Mount Kumgang
The Mount Kumgang Tourist Region is thought to be one way for the North Korean government to receive hard currency from abroad. Therefore, the official currency of the tour is neither the South Korean won nor the North Korean won, but the US dollar. Since 2003, food and services to South Korean tourists are provided by some North Koreans. But most of the staff in the hotels are Chinese citizens of Korean heritage with Korean language skills. The area is developed by Hyundai Asan, which plans to expand the site with a proper ski resort to complement the current sleigh course, and complete golf courses. Many plans for expansion, however, are in their earliest stages.