Taipei, Taiwan, R.O.C. – June 9, 2015 - United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) ("UMC"), a leading global semiconductor foundry, today announced its 2015 annual shareholders meeting results. Shareholders approved all agenda items including UMC's 2014 business report, financial statements and elected the Company's 13th term of Directors. The company also announced that Dr. Paul S.C. Hsu, who served a maximum tenure of four consecutive terms on the Board, has decided to retire after providing his valuable contributions to UMC as an independent director. Dr. Hsu spearheaded initiatives in corporate governance and set a high standard for UMC management’s performance evaluation. To fill the vacancy, shareholders have elected Dr. Wenyi Chu as the independent Board of Director at UMC. Dr. Chu, as the first female independent Board of Director, brings to UMC an extensive background in finance with specialization in strategic management. Dr. Chu’s financial knowledge and expertise will help UMC to develop sound corporate strategies aimed at fostering continued business growth.

At the meeting, the shareholders also approved:

1. The 2014 Business Report and Financial Statements. The consolidated revenue for 2014 was NT$140,012 million and net income attributable to the shareholder of the parent was NT$12,141 million, with earnings per share of NT$0.97.
2. Shareholder cash dividend of NT$6,939 million, at approximately NT$0.55 per share.
3. Employee cash bonus of NT$1,459 million.
4. The issuance plan of a private placement for common shares, ADR/GDR or CB/ECB, including secured or unsecured corporate bonds. The amount of shares issued or convertible is proposed to be no more than 10% of registered capital. The private placement plan will expire after a one-year period.

Details of each agenda item can be found at http://www.umc.com under the “Investors / Events” section.

UMC (NYSE: UMC, TWSE: 2303) is a leading global semiconductor foundry that provides advanced IC production for applications spanning every major sector of the electronics industry. UMC’s robust foundry solutions enable chip designers to leverage the company's sophisticated technology and manufacturing, which include volume production 28nm gate-last High-K/Metal Gate technology, ultra-low power platform processes specifically engineered for Internet of Things (IoT) applications and the automotive industry’s highest-rated AEC-Q100 Grade-0 manufacturing capabilities for production of ICs found in cars. UMC’s 10 wafer fabs are strategically located throughout Asia and are able to produce over 500,000 wafers per month. The company employs more than 17,000 people worldwide, with offices in Taiwan, mainland China, Europe, Japan, Korea, Singapore, and the United States. UMC can be found on the web at http://www.umc.com.

Note From UMC Concerning Forward-Looking Statements
Some of the statements in the foregoing announcement are forward looking within the meaning of the U.S. Federal Securities laws, including statements about future outsourcing, wafer capacity, technologies, business relationships and market conditions. Investors are cautioned that actual events and results could differ materially from these statements as a result of a variety of factors, including conditions in the overall semiconductor market and economy; acceptance and demand for products from UMC; and technological and development risks. Further information regarding these and other risks is included in UMC’s filings with the U.S. Securities and Exchange Commission, including its registration statements and reports on Forms F-1, F-3, F-6 and 20-F and 6-K, in each case as amended. UMC does not undertake any obligation to update any forward-looking statement as a result of new information, future events or otherwise, except as required under applicable law.