[Description 99.1 Announcement on 2010/01/22: Represent subsidiary TLC Capital Co, Ltd. to announce related materials on investment of mainland Chinese company 99.2 Announcement on 2010/01/25: Represent subsidiary Fortune Venture Capital Corp.to announce related materials on disposal of PixArt Imaging Inc. securities 99.3 Announcement on 2010/02/02: Represent subsidiary UMC New Business Investment Corporation to announce the cquisition of TOPCELL SOLAR INTERNATIONAL] [FORM 6-K February 22, 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 02/22/2010 6-K 1 htm_4791.htm LIVE FILING]