The Gaon Chart is the national chart of South Korea and is intended to be the equivalent of Oricon in Japan and Billboard in the United States.
The Gaon Album Chart are a set national charts that ranks the best-selling albums, including mini-albums and singles, in South Korea, provided by the Korea Music Content Industry Association. The charts are made up of charts tracking domestic album sales, international album sales and a combined overall album sales in weekly, monthly and year-end format.
Kim Jaejoong’s 2nd Album NO.X tops GAON Weekly Album Chart (Week: 2/14∼2/20). This is the second time that Kim Jaejoong’s NO.X Album topped this chart. Previously NO.X Album ranked 1st with only 2 days of sales (Week: 2/7∼2/13) Link