<SEC-DOCUMENT>0001309014-13-000124.txt : 20130225
<SEC-HEADER>0001309014-13-000124.hdr.sgml : 20130225
<ACCEPTANCE-DATETIME>20130225065111
ACCESSION NUMBER:		0001309014-13-000124
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20130225
FILED AS OF DATE:		20130225
DATE AS OF CHANGE:		20130225

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			UNITED MICROELECTRONICS CORP
		CENTRAL INDEX KEY:			0001033767
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		6-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15128
		FILM NUMBER:		13637011

	BUSINESS ADDRESS:	
		STREET 1:		978 HIGHLANDS CIRCLE
		CITY:			LOS ALTOS
		STATE:			CA
		ZIP:			94024
		BUSINESS PHONE:		6509688855

	MAIL ADDRESS:	
		STREET 1:		978 HIGHLANDS CIRCLE
		CITY:			LOS ALTOS
		STATE:			CA
		ZIP:			94024
</SEC-HEADER>
<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>htm_7438.htm
<DESCRIPTION>LIVE FILING
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United Microelectronics Corporation&nbsp;-&nbsp;Form&nbsp;6-K
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UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>
Washington, D.C. 20549</B>
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<FONT SIZE="+2" FACE="Arial"><B>FORM 6-K</B></FONT><BR>

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<FONT size="+1">
REPORT OF FOREIGN PRIVATE ISSUER<BR>PURSUANT TO RULE 13a-16 OR 15d-16<BR>UNDER THE SECURITIES EXCHANGE ACT OF 1934
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February 25, 2013
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Commission File Number: 001-15128
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	<FONT SIZE="+2"><B>United Microelectronics Corporation</B></FONT><BR>
	<FONT SIZE="-7">&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;</FONT>
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	<FONT SIZE="-1">(Translation of registrant&#146;s name into English)</FONT>
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	&nbsp;
    </TD>
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      <FONT FACE="Courier" SIZE="+0">No. 3 Li Hsin Road II<br>Science Park<br>Hsinchu, Taiwan, R.O.C.<br></FONT>
    </TD>
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    <TD VALIGN="BOTTOM" ALIGN="CENTER" WIDTH="100%" COLSPAN="5">
        <FONT SIZE="-7">&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;</FONT><BR>
	    <FONT SIZE="-1">(Address of principal executive office)</FONT>
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	&nbsp;
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	Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:&nbsp;&nbsp;[<FONT FACE="Courier">x</FONT>]&nbsp;Form 20-F&nbsp;&nbsp;&nbsp;&nbsp;[<FONT FACE="Courier">&nbsp;</FONT>]&nbsp;Form 40-F
    </TD>
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        &nbsp;
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        Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):&nbsp;&nbsp;[<FONT FACE="Courier">&nbsp;</FONT>]
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        &nbsp;
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        Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):&nbsp;&nbsp;[<FONT FACE="Courier">&nbsp;</FONT>]
    </TD>
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        &nbsp;
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        Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934:&nbsp;&nbsp;[<FONT FACE="Courier">&nbsp;</FONT>]&nbsp;Yes&nbsp;&nbsp;&nbsp;&nbsp;[<FONT FACE="Courier">x</FONT>]&nbsp;No
    </TD>
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        &nbsp;
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        If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):&nbsp;&nbsp;&nbsp;<FONT FACE="Courier"><U>&nbsp;n/a&nbsp;</U></FONT>
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        &nbsp;
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<B>SIGNATURES</B>
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       Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
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       &nbsp;
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       &nbsp;
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    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="4%%">
       &nbsp;
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    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="56%">
       United Microelectronics Corporation
    </TD>
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       &nbsp;
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       Date: 02/25/2013
    </TD>
    <TD VALIGN="TOP" ALIGN="LEFT" WIDTH="4%%">
       By:
    </TD>
    <TD VALIGN="TOP" ALIGN="LEFT" WIDTH="56%">
       Chitung Liu<BR><HR WIDTH="30%" NOSHADE>
    </TD>
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       &nbsp;
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    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="4%%">
       Name:&nbsp;
    </TD>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="56%">
       Chitung Liu
    </TD>
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       &nbsp;
    </TD>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="4%%">
       Title:
    </TD>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="56%">
       Chief Financial Officer
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       &nbsp;
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    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="4%%">
       &nbsp;
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       &nbsp;
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EXHIBIT&nbsp;INDEX
</B></FONT>
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      <FONT SIZE="-1"><B>Exhibit No.</B></FONT>
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      &nbsp;
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    <TD NOWRAP ALIGN="LEFT" WIDTH="77%">
      <FONT SIZE="-1"><B>Description</B></FONT>
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      <HR SIZE="1" NOSHADE>
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      <FONT SIZE="-1">99<FONT>
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       &nbsp;
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    <TD ALIGN="LEFT" VALIGN="TOP" WIDTH="77%">
      <FONT SIZE="2">6K on 02/25/2013</FONT>
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      &nbsp;
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      &nbsp;
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<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>exhibit1.htm
<DESCRIPTION>EX-99
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Exhibit&nbsp;&nbsp;EX-99
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<P align="center" style="font-size: 10pt"><FONT style="font-size: 12pt"><B>Exhibit</B></FONT>


<DIV align="center">
<TABLE style="font-size: 12pt" cellspacing="0" border="0" cellpadding="0" width="95%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="4%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="90%">&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="font-size: 12pt">
    <TD nowrap colspan="3" align="center" valign="top">Exhibit
</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Description</DIV></TD>
</TR>
<TR style="font-size: 1px">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top" style="border-top: 1px solid #000000"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">99.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Announcement on 2013/02/01: UMC will convene 4Q 2012 investor conference</DIV></TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">99.2</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Announcement on 2013/02/06: UMC announced its unconsolidated operating results for the fourth
quarter of 2012</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">99.3</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Announcement on 2013/02/21: To announce related materials on acquisition of machinery and
equipment</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">99.4</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Announcement on 2013/02/08: December Revenue</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">99.5</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Announcement on 2013/02/08: the trading and pledge of UMC common shares by directors,
executive officers and 10% shareholders of UMC</TD>
</TR>



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<P align="center" style="font-size: 10pt; display: none">1
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<P align="right" style="font-size: 12pt"><B>Exhibit&nbsp;99.1</B>



<P align="center" style="font-size: 12pt"><B>UMC will convene 4Q 2012 investor conference</B>



<P align="left" style="font-size: 12pt">1.Date of the investor conference:2013/02/06
<BR>
2.Time of the investor conference:14:00
<BR>
3.Location of the investor conference:
<BR>
2F Shangri-La Ballroom, Far Eastern Plaza Hotel 201 Tun Hwa South Road, Sec. 2, Taipei
<BR>
4.Brief information disclosed in the investor conference:
<BR>
UMC Q4 2012 Financial and Operating Results.
<BR>
5.The presentation of the investor conference release:
<BR>
It will be released after the investor conference.
<BR>
6.Will the presentation be released in the Company&#146;s website:
<BR>
Yes, please refer to the Company&#146;s website at www.umc.com
<BR>
7.Any other matters that need to be specified:None


<P align="center" style="font-size: 10pt; display: none">2
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<P align="right" style="font-size: 12pt"><B>Exhibit&nbsp;99.2</B>



<P align="center" style="font-size: 12pt"><B>UMC announced its unconsolidated operating results for the fourth quarter of 2012</B>



<P>
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    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>1.Date of occurrence of the event:2013/02/06</TD>
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    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>2.Company name:UNITED MICROELECTRONICS CORP.</TD>
</TR>

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    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>3.Relationship to the Company (please enter &#147;head office&#148; or &#147;affiliate company&#148;):head office</TD>
</TR>

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    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>4.Reciprocal shareholding ratios:N/A</TD>
</TR>

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<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

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    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>5.Cause of occurrence:</TD>
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    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>UMC Reports Fourth Quarter 2012 Results</TD>
</TR>

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    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Company to enhance advanced processes and long-term competitiveness specialty technologies
continues to grow</TD>
</TR>

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    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>United Microelectronics Corporation (NYSE: UMC; TWSE: 2303) (&#147;UMC&#148; or &#147;The Company&#148;), a leading
global semiconductor foundry, today announced its unconsolidated operating results for the
fourth quarter of 2012.</TD>
</TR>

</TABLE>


<P>
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<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Revenue was NT$26.09&nbsp;billion, an 8.5% quarter-over-quarter decrease from NT$28.53&nbsp;billion in 3Q12,
and a 6.8% year-over-year increase from NT$24.43&nbsp;billion in 4Q11. Gross margin was 16.8%,
operating margin was 3.7%, net income was NT$1.17&nbsp;billion, and earnings per ordinary share
were NT$ 0.09. In 2012, revenue for the full year was NT$106.00&nbsp;billion, with NT$9.08&nbsp;billion
operating income, NT$7.92&nbsp;billion net income and NT$0.63 earnings per share.</TD>
</TR>

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<P>
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    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Mr.&nbsp;Po-Wen Yen, UMC&#146;s newly appointed CEO, said, &#147;In 4Q 2012, both UMC&#146;s revenue and gross profit
were in line with expectations. Quarter-over-quarter revenue decline was primarily attributed
to decreased wafer shipments. A total of 1.07&nbsp;million 8-inch equivalent wafers were shipped,
with overall capacity utilization at 80%. Due to the impact from declining wafers shipments
and currency appreciation, gross margin for the quarter was 16.8%. Revenue contribution from
40nm continued its sequential increase to 15%, reaching our internal target.&#148;</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>CEO Yen continued, &#147;As industry competition intensifies, the bar has been raised with regard to
customer expectations for leading-edge technology products&#146; time to market and foundry service
flexibility. As UMC&#146;s newly appointed CEO, my first priority is to enhance R&D for advanced
processes. In order to realize maximum benefits from our R&D efforts, we will increase
internal resources while leverage outside collaboration so that we may effectively integrate
R&D with manufacturing to ensure timely delivery of key projects. For example, UMC&#146;s FinFET
development began in 2010, and was bolstered in 2012 through a cooperative licensing agreement
with IBM for their fundamental FinFET technology. Our FinFET development team has since</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

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    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>been making good progress. Meanwhile, UMC recently demonstrated the world&#146;s first TSV-enabled
3DIC chip stacking technology developed under an open ecosystem collaboration. The 3DIC,
developed with an OSAT partner, reached a major milestone by passing package-level reliability
assessment. This successful collaboration reaffirms our strong commitment to elevating
technology capabilities in order to fulfill the promise of providing high value-added services
to customers. UMC&#146;s operating results can be further enhanced through management&#146;s team
effort to increase capacity, control cost, and expand our customer base. Although UMC&#146;s 28nm
ramp has been slower than anticipated, we remain dedicated to advanced technology development
and timely capacity deployment to serve our customers&#146; needs. Equally important is our
customers&#146; unwavering commitment to bringing their new and existing 28nm products to fruition
at UMC.&#148;</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>CEO Yen added, &#147;In the short-term, we continue to see elevated demand uncertainty from customers,
along with supply chain inventory that will need additional time to digest. When demand
recovers, we are optimistic about the growth momentum from the strong mobile communications
segment. 2013 is a critical year for UMC to demonstrate continuous success. In addition to
acquiring Hejian Technology&#146;s operation, which will help UMC expand in the China market and
broaden the company&#146;s operating scale, we will continue to invest appropriate capex to further
our advanced process R&D and expand leading-edge capacity. These endeavors will help expedite
company growth and strengthen competitiveness to enhance UMC and its customers&#146; overall value
while increasing shareholders&#146; equity.&#148;</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>First Quarter of 2013 Outlook & Guidance :</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Foundry Segment Wafer Shipment: To increase by approximately 6%</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Foundry Segment Profitability: Operating margin to be approximately break-even</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Foundry Segment Capacity Utilization: Approximately 75%</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">2013</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Foundry CAPEX Budget: US$1.5bn</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Guidance to Non-Operating Income and New Business Segment:</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Non-Operating Income after-tax to be approximately US$100mn &#043;</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>New Business Segment revenue to be approximately NT$2bn, and</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">&#149;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>perating margin to be in loss of approximately NT$1bn</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>6.Countermeasures:N/A</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>7.Any other matters that need to be specified:N/A</TD>
</TR>



</TABLE>

<P align="center" style="font-size: 10pt; display: none">3
<!-- PAGEBREAK -->


<P><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 12pt">



</TABLE>


<P align="right" style="font-size: 12pt"><B>Exhibit&nbsp;99.3</B>



<P align="center" style="font-size: 12pt"><B>To announce related materials on acquisition of machinery and equipment</B>



<P align="left" style="font-size: 12pt">1.Name and nature of the subject matter (e.g.land located at Sublot XX, Lot XX, North District,
Taichung City): Machinery and equipment
<BR>
2.Date of the occurrence of the event: 2012/12/07~2013/02/21
<BR>
3.Transaction volume (e.g.XX square meters, equivalent to XX p&#146;ing), unit price, total transaction
price: Transaction volume: a batch; average unit price: $ 538,364,500 NTD; total transaction price:
$ 538,364,500 NTD
<BR>
4.Counterparty to the trade and its relationship with the company (if the trading counterpart is a
natural person and is not an actual related party of the Company, the name of the trading
counterpart is not required to be disclosed): Advanced Ion Beam Technology, Inc. ; non-related
party transaction
<BR>
5.Where the counterpart to the trade is an actual related party, a public announcement shall also
include the reason for choosing the related party as trading counterpart and the identity of the
previous owner (including its relationship with the company and the trading counterpart), price of
transfer and the date of acquisition: Not applicable
<BR>
6.Where a person who owned the property within the past five years has been an actual related
person of the company, a public announcement shall also include the dates and prices of acquisition
and disposal by the related person and the person&#146;s relationship to the company at those times: Not
applicable
<BR>
7.Anticipated loss or profit from the disposal (not applicable in cases of acquisition of assets)
(where originally deferred, the status or recognition shall be stated and explained):Not applicable
<BR>
8.Terms of delivery or payment (including payment period and monetary amount):Base on purchase
order payment term.
<BR>
9.The manner of deciding on this transaction (such as tender invitation , price comparison, or
price negotiation), the reference basis for the decision on price and the decision-making
department:
<BR>
transaction: price negotiation; the reference basis for the decision on price:
<BR>
market price. The decision-making department: the Selection Meeting
<BR>
10.Name of the professional appraisal institution and its appraisal amount: Not applicable
<BR>
11.Reason for any significant discrepancy with the transaction amount, and opinion of the
certifying CPA: Not applicable
<BR>
12.Is the appraisal report price a limited price or specific price?:Not applicable
<BR>
13.Has an appraisal report not yet been obtained?:Not applicable
<BR>
14.Reason an appraisal report has not yet been obtained: Not applicable
<BR>
15.Broker and broker&#146;s fee: None
<BR>
16.Concrete purpose or use of the acquisition or disposition: For production
<BR>
17.Do the directors have any objection to the present transaction?:No
<BR>
18.Any other matters that need to be specified: None


<P align="right" style="font-size: 12pt"><B>Exhibit&nbsp;99.4</B>



<P align="center" style="font-size: 12pt">February&nbsp;8, 2013<BR>
This is to report the changes or status of 1) Sales volume 2) Funds lent to other parties 3)<BR>
Endorsements and guarantees 4) Financial derivative transactions for the period of January&nbsp;2013.



<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">1)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Sales volume (NT$ Thousand)</TD>
</TR>

</TABLE>

<DIV align="center">
<TABLE style="font-size: 12pt" cellspacing="0" border="0" cellpadding="0" width="95%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="4%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="18%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="7%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="8%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="7%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="7%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="4%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
</TR>
<TR style="font-size: 12pt" valign="bottom">
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>Period</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Items</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>2012</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>2011</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>Changes</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>%</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="font-size: 12pt">
    <TD nowrap colspan="3" align="center" valign="top"><I>January</I>
</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Net sales
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">9,452,116</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">8,844,488</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">607,628</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">6.87</TD>
    <TD nowrap valign="top">%</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top"><I>2013</I></TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Net sales
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">9,452,116</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">8,844,488</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">607,628</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">6.87</TD>
    <TD nowrap valign="top">%</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">2)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Funds lent to other parties (NT$ Thousand) : None</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">3)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Endorsements and guarantees (NT$ Thousand) :</TD>
</TR>

</TABLE>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="95%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="13%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="17%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="17%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="16%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="17%">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B><I>Balance as of period end</I></B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>This Month</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>Last Month</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>Limit of lending</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="font-size: 10pt">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><FONT style="font-size: 12pt"><I>UMC</I></FONT>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top"><FONT style="font-size: 12pt">1,400,000</FONT></TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top"><FONT style="font-size: 12pt">0</FONT></TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top"><FONT style="font-size: 12pt">41,181,228</FONT></TD>
    <TD nowrap valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">4)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Financial derivatives transactions : None</TD>
</TR>




</TABLE>

<P align="center" style="font-size: 10pt; display: none">4
<!-- PAGEBREAK -->


<P><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 12pt">



</TABLE>


<P align="right" style="font-size: 12pt"><B>Exhibit&nbsp;99.5</B>



<P align="center" style="font-size: 12pt"><B>United Microelectronics Corporation</B><BR>
For the month of January, 2013



<P align="left" style="font-size: 12pt">This is to report 1) the trading of directors, executive officers and 10% shareholders of United
Microelectronics Corporation (&#147;UMC&#148;) (NYSE: UMC); 2) the pledge and clear of pledge of UMC common
shares by directors, executive officers and 10% shareholders of UMC;


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">1)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The trading of directors, executive officers and 10% shareholders</TD>
</TR>

</TABLE>

<DIV align="center">
<TABLE style="font-size: 12pt" cellspacing="0" border="0" cellpadding="0" width="95%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="5%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="29%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="34%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="9%">&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="font-size: 12pt">
    <TD align="left" valign="top"><I>Title</I>
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><I>Name</I>
</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><FONT style="font-size: 10pt"><I>Number of shares<BR>
held as of<BR>
December&nbsp;31, 2012</I></FONT>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><FONT style="font-size: 10pt"><I>Number of shares held as<BR>
of<BR>
January&nbsp;31, 2013</I></FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><FONT style="font-size: 10pt"><BR>
<BR>
<I>Changes</I></FONT></TD>
</TR>
<TR style="font-size: 1px">
    <TD align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD valign="top" style="border-top: 1px solid #000000"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size: 10pt">
    <TD align="left" valign="top"><FONT style="font-size: 12pt">&#151;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&#151;
</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&#151;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&#151;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&#151;</TD>
</TR>
<TR style="font-size: 1px">
    <TD align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD valign="top" style="border-top: 1px solid #000000"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 12pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right">2)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The pledge and clear of pledge of UMC common shares by directors, executive officers and 10%
shareholders:</TD>
</TR>

</TABLE>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="95%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="8%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="14%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="23%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="13%">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><I>Number of shares</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><I>Number of shares pledged</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><I>pledged as of</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><I>as of</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><I>Title</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><I>Name</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><I>December 31, 2012</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><I>January 31, 2013</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><I>Changes</I></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="font-size: 10pt">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><FONT style="font-size: 12pt">&#151;</FONT>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><FONT style="font-size: 12pt">&#151;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><FONT style="font-size: 12pt">&#151;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><FONT style="font-size: 12pt">&#151;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><FONT style="font-size: 12pt">&#151;</FONT></TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<P align="center" style="font-size: 10pt; display: none">5




<!-- v.121908 -->
</BODY>

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</HTML>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
