[Description 99.1 Announcement on 2011/12/27: To announce related materials on acquisition of machinery and equipment 99.2 Announcement on 2012/01/02: To announce related materials on acquisition of machinery and equipment 99.3 Announcement on 2012/01/03: To announce related materials on acquisition of machinery and equipment 99.4 Announcement on 2012/01/04: To announce related materials on disposal of SandForce, Inc. on behalf of UMC] [FORM 6-K January 30, 2012 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 01/30/2012 6-K 1 htm_6498.htm LIVE FILING]