OKFN Korea organised International Open Data Day in Korea (Feb 23, Seoul). There were over 50 participants ranging from students to professors with various domains. We focused on developing more qualified data from raw data. Datasets collected the Seoul Open Data Portal (http://data.seoul.go.kr), including culture, population, healthcare, politics, etc. The results were visualised by Google Fusion tables. The results can be found: Google Drive (Open-Data-Day-in-Korea). We will share more information here and Facebook page of OKFN Korea.