[UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS FOR THE NINE-MONTH PERIODS ENDED SEPTEMBER 30, 2011 AND 2010 Address: No. 3 Li-Hsin Road II, Hsinchu Science Park, Hsinchu City, Taiwan, R.O.C. Telephone: 886-3-578-2258 The reader is advised that these consolidated financial statements have been prepared originally in Chinese. In the event of a conflict between these financial statements and the] [FORM 6-K November 22, 2011 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 1 . 6K on 20111122]

[UMC Receives Government Approval to Acquire Stakes in He Jian 1.Date of occurrence of the event:2011/10/31] [FORM 6-K October 31, 2011 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 20111031 6-K 1 htm_6230.htm LIVE FILING]

[Description 99.1 Announcement on 2011/09/30: Mainland Chinese company investment on behalf of subsidiary, TLC Capital Co., LTD. 99.2 Announcement on 2011/10/03: To announce related materials on acquisition of machinery and equipment 99.3 Announcement on 2011/10/04: Represent subsidiary NexPower Technology CORP. to announce the impairment of assets by applying ROC SFAS No. 35 99.4 Announcement on 2011/10/05: To announce repurchased and] [FORM 6-K October 26, 2011 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 20111026 6-K 1 htm_6219.htm LIVE FILING]

[Description 99.1 Announcement on 2011/09/01: To announce related materials on acquisition of machinery and equipment 99.2 Announcement on 2011/09/05: UMC will attend investor conferences on 2011/09/06 99.3 Announcement on 2011/09/07: To announce related materials on acquisition of machinery and equipment 99.4 Announcement on 2011/09/13: UMC will attend investor conferences on 2011/09/15 99.5 Announcement on 2011/09/08: August Revenue 99.6 Announcement on] [FORM 6-K September 27, 2011 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 20110927 6-K 1 htm_6155.htm LIVE FILING]

[UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS FOR THE SIX-MONTH PERIODS ENDED JUNE 30, 2011 AND 2010 Address: No. 3 Li-Hsin Road II, Hsinchu Science Park, Hsinchu City, Taiwan, R.O.C. Telephone: 886-3-578-2258 The reader is advised that these financial statements have been prepared originally in Chinese. In the event of a conflict between these financial statements and the original] [FORM 6-K September 16, 2011 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 1 . 6K on 20110225]