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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001309014-09-000224.txt : 20090331
<SEC-HEADER>0001309014-09-000224.hdr.sgml : 20090331
<ACCEPTANCE-DATETIME>20090331064440
ACCESSION NUMBER:		0001309014-09-000224
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20090330
FILED AS OF DATE:		20090331
DATE AS OF CHANGE:		20090331

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:		09715900

	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_3822.htm
<DESCRIPTION>LIVE FILING
<TEXT>
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United Microelectronics Corporation&nbsp;-&nbsp;Form&nbsp;6-K
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<A NAME="DOCUMENT_TOP">&nbsp;</A>
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<FONT size="+1"><B>
UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>
Washington, D.C. 20549</B>
</P>

<P>
<CENTER>
<FONT SIZE="+2" FACE="Arial"><B>Form 6-K</B></FONT><BR>

</CENTER>
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<P>
<CENTER>
<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
</FONT>
</CENTER>
</P>
<P>
<CENTER>
March 30, 2009
</CENTER>
</P>
<P>
<CENTER>
Commission File Number: 001-15128
</CENTER>
</P>
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<TABLE CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="100%">
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    <TD VALIGN="BOTTOM" ALIGN="CENTER" WIDTH="100%" COLSPAN="5">
	<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>
    </TD>
  </TR>
  <TR>
    <TD VALIGN="CENTER" ALIGN="CENTER" WIDTH="100%" COLSPAN="5">
	<FONT SIZE="-1">(Translation of registrant&#146;s name into English)</FONT>
    </TD>
  </TR>
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    <TD VALIGN="BOTTOM" ALIGN="CENTER" WIDTH="100%" COLSPAN="5">
	&nbsp;
    </TD>
  </TR>

  <TR>
    <TD VALIGN="BOTTOM" ALIGN="CENTER" WIDTH="100%" COLSPAN="5">
      <FONT FACE="Courier" SIZE="+0">No. 3 Li Hsin Road II<br>Science Park<br>Hsinchu, Taiwan, R.O.C.<br></FONT>
    </TD>
  </TR>
  <TR>
    <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>
    </TD>
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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>
  </TR>
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        &nbsp;
    </TD>
  </TR>

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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>]
    </TD>
  </TR>

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    <TD VALIGN="BOTTOM" ALIGN="LEFT" COLSPAN="5" WIDTH="100%">
        &nbsp;
    </TD>
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    <TD VALIGN="BOTTOM" ALIGN="LEFT" COLSPAN="5" WIDTH="100%">
        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>
  </TR>

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    <TD VALIGN="BOTTOM" ALIGN="LEFT" COLSPAN="5" WIDTH="100%">
        &nbsp;
    </TD>
  </TR>

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    <TD VALIGN="BOTTOM" ALIGN="LEFT" COLSPAN="5" WIDTH="100%">
        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>
  </TR>

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    <TD VALIGN="BOTTOM" ALIGN="LEFT" COLSPAN="5" WIDTH="100%">
        &nbsp;
    </TD>
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</TABLE>

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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>
    </TD>
  </TR>
  <TR>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="100%">
        &nbsp;
    </TD>
  </TR>
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<PRE>

</PRE>
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<FONT SIZE="+1">
<CENTER>
<B>SIGNATURES</B>
</CENTER>
</FONT>
<TABLE CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="100%">
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    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="100%">
       &nbsp;
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    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="100%">
       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.
    </TD>
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       &nbsp;
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<TABLE CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="100%">
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       &nbsp;
    </TD>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="4%%">
       &nbsp;
    </TD>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="56%">
       United Microelectronics Corporation
    </TD>
  </TR>

  <TR>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="40%">
       &nbsp;
    </TD>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="4%%">
       &nbsp;
    </TD>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="56%">
       &nbsp;
    </TD>
  </TR>

  <TR>
    <TD VALIGN="TOP" ALIGN="LEFT" WIDTH="40%">
       Date: 03/31/2009
    </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>
  </TR>

  <TR>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="40%">
       &nbsp;
    </TD>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="4%%">
       Name:&nbsp;
    </TD>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="56%">
       Chitung Liu
    </TD>
  </TR>

  <TR>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="40%">
       &nbsp;
    </TD>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="4%%">
       Title:
    </TD>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="56%">
       Chief Financial Officer
    </TD>
  </TR>
  <TR>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="40%">
       &nbsp;
    </TD>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="4%%">
       &nbsp;
    </TD>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="56%">
       &nbsp;
    </TD>
  </TR>
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EXHIBIT&nbsp;INDEX
</B></FONT>
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<BR>
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    <TD NOWRAP ALIGN="LEFT" WIDTH="8%">
      <FONT SIZE="-1"><B>Exhibit No.</B></FONT>
    </TD>
    <TD WIDTH="15%">
      &nbsp;
    </TD>
    <TD NOWRAP ALIGN="LEFT" WIDTH="77%">
      <FONT SIZE="-1"><B>Description</B></FONT>
    </TD>
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    <TD NOWRAP ALIGN="CENTER" WIDTH="8%">
      <HR SIZE="1" NOSHADE>
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      &nbsp;
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    <TD NOWRAP ALIGN="CENTER" WIDTH="77%">
      <HR ALIGN="LEFT" SIZE="1" WIDTH="88%" NOSHADE>
    </TD>
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      <FONT SIZE="-1">99<FONT>
    </TD>
    <TD WIDTH="15%">
       &nbsp;
    </TD>
    <TD ALIGN="LEFT" VALIGN="TOP" WIDTH="77%">
      <FONT SIZE="2">6-K filing on 03/31/2009</FONT>
    </TD>
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      &nbsp;
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       &nbsp;
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      &nbsp;
    </TD>
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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>exhibit1.htm
<DESCRIPTION>EX-99
<TEXT>
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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>



<P align="left" style="font-size: 12pt"><U>Exhibit</U> <U>Description</U>


<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">99.1</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>UMC Files 2008 Financial Statements Prepared in Accordance with ROC GAAP with the ROC
Securities and Futures Bureau</TD>
</TR>


</TABLE>

<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 Files 2008 Financial Statements Prepared in Accordance with ROC GAAP with the ROC Securities<BR>
and Futures Bureau</B>



<P align="left" style="font-size: 12pt"><B>Taipei, R.O.C. &#151; March&nbsp;31, 2009 </B>- United Microelectronics Corporation (NYSE: UMC; TAIEX: 2303),
(UMC)&nbsp;today filed its fiscal year 2008 financial statements prepared in accordance with ROC GAAP
with the ROC Securities and Futures Bureau. The financial statements are available at the Market
Observation Post System of the Taiwan Stock Exchange at
<U>http://emops.twse.com.tw/emops_all.htm</U> under the &#147;electronic book&#148; section. UMC will file
its annual report on Form 20-F and full financial statements for fiscal year 2008 prepared in
accordance with ROC GAAP (including the reconciliations to US GAAP) with the U.S. Securities and
Exchange Commission on or before June&nbsp;30, 2009. For any inquiries, please contact UMC-IR at
ir@umc.com.


<P align="left" style="font-size: 12pt">SAFE HARBOR: FORWARD-LOOKING STATEMENTS
<BR>
This announcement includes statements that may constitute forward-looking statements made pursuant
to the safe harbor provision of the Private Securities Litigation Reform Act of 1995. These
forward-looking statements can be identified by terminology such as &#147;will,&#148; &#147;expects,&#148;
&#147;anticipates,&#148; &#147;future,&#148; &#147;intends,&#148; &#147;plans,&#148; &#147;believes,&#148; &#147;estimates&#148; and similar statements. UMC
may also make written or oral forward-looking statements in its periodic reports to the U.S.
Securities and Exchange Commission on forms 20-F and 6-K., in its annual report to shareholders, in
press releases and other written materials and in oral statements made by its officers, directors
or employees to third parties. Statements that are not historical facts, including statements about
UMC&#146;s beliefs and expectations, are forward-looking statements. Forward-looking statements involve
inherent risks and uncertainties that could cause actual results to differ materially from the
forward-looking statements. A number of important factors could cause actual results to differ
materially from those contained in any forward-looking statement. Potential risks and uncertainties
include, but are not limited to, risks outlined in UMC&#146;s filings with the U.S. Securities and
Exchange Commission, including its registration statements on Form F-1, F-3, F-6 and 20-F, in each
case as amended. UMC does not undertake any obligation to update any forward-looking statement,
except as required under applicable law.


<P align="left" style="font-size: 12pt">This release is not an offer of securities for sale in the United States. Securities may not be
offered or sold in the United States absent registration or an exemption from registration. Any
public offering of securities to be made in the United States will be made by means of a prospectus
that may be obtained from the issuer or selling security holder and that will contain detailed
information about the company and management, as well as financial statements.



<P align="center" style="font-size: 10pt; display: none">2


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