 The largest concentrations can be found in Kharkiv, Kiev, Odessa, Mykolaiv, Cherkasy, Lviv, Luhansk, Donetsk, Dnipropetrovsk, Zaporizhia, and Crimea.The largest ethnic representative body, the Association of Koreans in Ukraine, is located in Kharkiv, where roughly 150 Korean families reside; the first Korean language school was opened in 1996 under their direction.One of the most famous Korean-Ukrainians is Oleksandr Sin, former mayor of Zaporizhzhia.