[Description 99.1 Announcement on 2010/04/20: To announce related materials on acquisition of machinery and equipment 99.2 Announcement on 2010/04/23: To announce related materials on acquisition of machinery and equipment 99.3 Announcement on 2010/04/23: To announce related materials on acquisition of machinery and equipment 99.4 Announcement on 2010/04/28: To announce its unconsolidated operating results for the first quarter of 2010 99.5] [FORM 6-K May 24, 2010 United Microelectronics Corporation ——————————————————————————————————— No. 3 Li Hsin Road II ——————————————————————————————————— x x n/a United Microelectronics Corporation Chitung Liu Chitung Liu Chief Financial Officer Description 99 6K on 05/24/2010 6-K 1 htm_5022.htm LIVE FILING]