[Description 99.1 Announcement on 2013/06/13: UMC joins IBM chip alliance for 10nm process development 1 UMC joins IBM chip alliance for 10nm process development 1.Date of occurrence of the event:2013/06/13 In accordance with the agreement. 7.Effect on company finances and business (not applicable where rescinded): Improving company finances and business. 8.Concrete purpose/objective (not applicable where rescinded): UMC joins IBM chip] [FORM 6-K June 13, 2013 United Microelectronics Corporation ——————————————————————————————————— No. 3 Li Hsin Road II ——————————————————————————————————— x x n/a United Microelectronics Corporation Chitung Liu Chitung Liu CFO Description 99 6K on 2013/06/13 6-K 1 htm_7763.htm LIVE FILING]

[FORM 6-K June 13, 2013 United Microelectronics Corporation ——————————————————————————————————— No. 3 Li Hsin Road II ——————————————————————————————————— x x n/a United Microelectronics Corporation Chitung Liu Chitung Liu CFO 6-K 1 htm_7762.htm LIVE FILING]

[UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS FOR THE THREE-MONTH PERIODS ENDED MARCH 31, 2013 AND 2012 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 June 7, 2013 United Microelectronics Corporation ——————————————————————————————————— No. 3 Li Hsin Road II ——————————————————————————————————— x x n/a United Microelectronics Corporation Chitung Liu Chitung Liu Chief Financial Officer 6-K 1 umc_fs1q13-6k.htm CONSOLIDATED FINANCIAL STATEMENTS 1Q13]

[Description 99.1 Announcement on 2013/04/26: To announce the differences for 2012 financial statements between ROC GAAP and US GAAP 99.2 Announcement on 2013/04/29: To announce related materials on acquisition of machinery and equipment 99.3 Announcement on 2013/04/29: To announce accumulative shares repurchased exceeding NTD$300 million in value 99.4 Announcement on 2013/05/02: To announce related materials on acquisition of machinery and] [FORM 6-K May 28, 2013 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 05/27/2013 6-K 1 htm_7710.htm LIVE FILING]

[UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS FOR THE YEARS ENDED DECEMBER 31, 2012 AND 2011 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 Chinese] [FORM 6-K May 06, 2013 United Microelectronics Corporation ——————————————————————————————————— No. 3 Li Hsin Road II ——————————————————————————————————— x x n/a United Microelectronics Corporation Chitung Liu Chitung Liu Chief Financial Officer 6-K 1 umcfs4q12_6k1.htm CONSOLIDATED FINANCIAL STATEMENTS 4Q12]