Taipei, Taiwan, R.O.C. – June 8, 2017 - United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (“UMC”), a leading global semiconductor foundry, today held its 2017 annual shareholders’ meeting.

At the meeting, shareholders approved:

1. The 2016 Business Report and Financial Statements. The company's consolidated revenue for 2016 was NT$147,870 million and net income attributable to stockholders of the parent was NT$8,316 million, with earnings per share of NT$0.68.

2. The 2016 cash distribution to stockholders totaled NT$6,112 million, at approximately NT$0.50 per share.

3. The option to issue a private placement plan 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 under the "Investors \ Events" section at http://www.umc.com.

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 comprehensive foundry solutions enable chip designers to leverage the company's sophisticated technology and manufacturing, which include high volume 28nm High-K/Metal Gate technology, 14nm FinFET mass production, ultra-low power platform processes specifically developed for Internet of Things (IoT) applications and the automotive industry's highest-rated AEC-Q100 Grade-0 manufacturing capabilities for the production of ICs found in vehicles. UMC's 11 wafer fabs are strategically located throughout Asia and are able to produce nearly 600,000 wafers per month. The company employs over 19,000 people worldwide, with offices in Taiwan, 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 introduction of new services and technologies, future outsourcing, competition, wafer capacity, 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. 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.