[Description 99.1 Announcement on 2014/10/09: UMC Board Resolves to Enter a Joint Venture Agreement for a 12” Fab in China 1 UMC Board Resolves to Enter a Joint Venture Agreement for a 12” Fab in China 1.Date of occurrence of the event:2014/10/09 Po-Wen Yen, CEO of UMC, said “China’s domestic semiconductor market has become the world’s largest. Current levels of] [FORM 6-K October 9, 2014 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 10/09/2014 6-K 1 htm_8915.htm LIVE FILING]

[Description 99.1 Announcement on 2014/08/26: To announce related materials on acquisition of machinery and equipment 99.2 Announcement on 2014/08/28: Important Resolutions from 12th term 19th Board Meeting 99.3 Announcement on 2014/08/28: To announce related materials on acquisition of the common shares of a new company jointly established with Fujitsu Semiconductor Limited 99.4 Announcement on 2014/08/29: UMC and Fujitsu Semiconductor Limited] [FORM 6-K September 29, 2014 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 09/29/2014 6-K 1 htm_8882.htm LIVE FILING]

[UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS FOR THE SIX-MONTH PERIODS ENDED JUNE 30, 2014 AND 2013 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 September 5, 2014 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 umcfs2q14_6k.htm CONSOLIDATED FINANCIAL STATEMENTS]

[Description 99.1 Announcement on 2014/07/30: Important Resolutions from 12th term 18th Board Meeting 99.2 Announcement on 2014/07/30: UMC announced its unconsolidated operating results for the second quarter of 2014 99.3 Announcement on 2014/07/31: To announce related materials on acquisition of Intangible assets 99.4 Announcement on 2014/08/01: To announce related materials on acquisition of machinery and equipment 99.5 Announcement on 2014/08/05:] [FORM 6-K August 25, 2014 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 08/25/2014 6-K 1 htm_8818.htm LIVE FILING]