Taipei, Taiwan, R.O.C. – June 15, 2011 - United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) ("UMC"), a leading global semiconductor foundry, today held its 2011 annual shareholders meeting, during which shareholders approved all agenda items including UMC's 2010 business report and financial statements.

At the meeting, shareholders also approved:

• The 2010 retained earnings distribution, which includes shareholder cash dividend of NT$14,034 million, estimated at approximately NT$1.12 per share, employee cash bonus of NT$2,477 million, and directors' remuneration of NT$21 million. The details of the dividend distribution rate and date will be set during UMC's upcoming Board Meeting.
• The amendment of the Company's "Articles of Incorporation" and "Procedure for Election of Directors and Supervisors".
  Details of each agenda item can be found in the investor relations section at http://www.umc.com.

UMC (NYSE: UMC, TWSE: 2303) is a leading global semiconductor foundry that provides advanced technology and manufacturing services for applications spanning every major sector of the IC industry. UMC's customer-driven foundry solutions allow chip designers to leverage the strength of the company's leading-edge processes, which include production proven 65nm, 45/40nm, mixed signal/RFCMOS, and a wide range of specialty technologies. Production is supported through 10 wafer manufacturing facilities that include two advanced 300mm fabs; Fab 12A in Taiwan and Singapore-based Fab 12i are both in volume production for a variety of customer products. The company employs over 13,000 people worldwide and has offices in Taiwan, Japan, Singapore, Europe, and the United States. UMC can be found on the web at http://www.umc.com.