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<SEC-DOCUMENT>0001309014-09-000130.txt : 20090223
<SEC-HEADER>0001309014-09-000130.hdr.sgml : 20090223
<ACCEPTANCE-DATETIME>20090223094234
ACCESSION NUMBER:		0001309014-09-000130
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20090223
FILED AS OF DATE:		20090223
DATE AS OF CHANGE:		20090223

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:		09626753

	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_3721.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>
</P>

<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>
February 23, 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>
  <TR>
    <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>
  </TR>
  <TR>
    <TD VALIGN="BOTTOM" ALIGN="CENTER" WIDTH="100%" COLSPAN="5">
	&nbsp;
    </TD>
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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>
  <TR>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" COLSPAN="5" WIDTH="100%">
        &nbsp;
    </TD>
  </TR>

  <TR>
    <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)(1):&nbsp;&nbsp;[<FONT FACE="Courier">&nbsp;</FONT>]
    </TD>
  </TR>

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

  <TR>
    <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>

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

  <TR>
    <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>

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

<TABLE CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="100%">
  <TR>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="100%">
        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>
</TABLE>
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<FONT SIZE="3">
<PRE>

</PRE>
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<FONT SIZE="+1">
<CENTER>
<B>SIGNATURES</B>
</CENTER>
</FONT>
<TABLE CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="100%">
  <TR>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="100%">
       &nbsp;
    </TD>
  </TR>
  <TR>
    <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>
  </TR>
  <TR>
    <TD VALIGN="BOTTOM" ALIGN="LEFT" WIDTH="100%">
       &nbsp;
    </TD>
  </TR>
</TABLE>
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<TABLE CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="100%">
  <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%">
       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: 02/23/2009
    </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>
</TABLE>
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<CENTER>
<FONT SIZE="+1"><B>
EXHIBIT&nbsp;INDEX
</B></FONT>
</CENTER>
<BR>
<CENTER>
<TABLE CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="60%">
  <TR VALIGN="BOTTOM">
    <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>
  </TR>
  <TR VALIGN="BOTTOM">
    <TD NOWRAP ALIGN="CENTER" WIDTH="8%">
      <HR SIZE="1" NOSHADE>
    </TD>
    <TD WIDTH="15%">
      &nbsp;
    </TD>
    <TD NOWRAP ALIGN="CENTER" WIDTH="77%">
      <HR ALIGN="LEFT" SIZE="1" WIDTH="88%" NOSHADE>
    </TD>
  </TR>
<!-- Exhibit Index Header Page -->
<!-- Exhibit Index Item -->
  <TR VALIGN="BOTTOM">
    <TD VALIGN="TOP" WIDTH="8%" nowrap>
      <FONT SIZE="-1">99<FONT>
    </TD>
    <TD WIDTH="15%">
       &nbsp;
    </TD>
    <TD ALIGN="LEFT" VALIGN="TOP" WIDTH="77%">
      <FONT SIZE="2">6K on 2009/02/23</FONT>
    </TD>
  </TR>
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  <TR VALIGN="BOTTOM">
    <TD VALIGN="TOP" WIDTH="8%" nowrap>
      &nbsp;
    </TD>
    <TD WIDTH="15%">
       &nbsp;
    </TD>
    <TD ALIGN="LEFT" VALIGN="TOP" WIDTH="77%">
      &nbsp;
    </TD>
  </TR>
</TABLE>
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</BODY>
</HTML>
<!-- End HTML Footer Page -->
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>exhibit1.htm
<DESCRIPTION>EX-99
<TEXT>
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<HEAD>
<TITLE>
Exhibit&nbsp;&nbsp;EX-99
</TITLE>
</HEAD>
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<BODY style="font-family: 'Times New Roman',Times,serif">


<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>Announcement on 2009/01/21: To announce the registration of capital reduction due to the
retirement of certain treasury stocks</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">99.2</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Announcement on 2009/01/22: Represent subsidiary UMC CAPITAL CORP. to announce related
materials on investment of MORGAN STANLEY FRN</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 2009/01/22: 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 2009/02/04:To announce accumulative shares repurchased exceeding NTD$300
million in value</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 2009/02/10: UMC announced its unconsolidated operating results for the fourth
quarter of 2008</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">99.6</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Announcement on 2009/02/10: To clarify reports on Commercial Times on Feb 10, 2009</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">99.7</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Announcement on 2009/02/10:To announce accumulative shares repurchased exceeding NTD$300
million in value</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">99.8</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Announcement on 2009/02/10: The Company&#146;s impairment of assets by applying ROC SFAS No.&nbsp;34</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">99.9</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Announcement on 2009/02/12: To announce accumulative shares repurchased exceeding NTD$300
million in value</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">99.10</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Announcement on 2009/02/16: To announce accumulative shares repurchased exceeding NTD$300
million in value</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">99.11</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Announcement on 2009/02/16: The completion of share buy-back program</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">99.12</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Announcement on 2009/02/10: January 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">99.13</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Announcement on 2009/02/10: 1) the trading and pledge of UMC common shares by directors,
supervisors, executive officers and 10% shareholders of UMC; 2) the acquisition and
disposition of assets by UMC</TD>
</TR>



</TABLE>

<P align="center" style="font-size: 10pt; display: none">1
<!-- 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;99.1</B>




<P align="left" style="margin-left:1%; font-size: 12pt"><B>To announce the registration of capital reduction due to the retirement of certain treasury
stocks</B>



<P align="left" style="margin-left:1%; font-size: 12pt">1.Date of the Competent Authority&#146;s approval of the capital reduction: 2005/11/15



<P align="left" style="margin-left:1%; font-size: 12pt">2.Date of completion of capital amendment registration: 2009/01/19



<P align="left" style="margin-left:1%; font-size: 12pt">3.Effect on the company financial report (including any discrepancy between the amount of
paid-in capital and the number of shares outstanding and the effect on net worth per share):



<P align="left" style="margin-left:1%; font-size: 12pt">(1)&nbsp;Before the capital reduction: The paid-in capital is NT$135,434,870,510; the shares
outstanding are 13,543,487,051 shares; book value per share is NT$15.63



<P align="left" style="margin-left:1%; font-size: 12pt">(2)&nbsp;After the capital reduction: The paid-in capital is NT$129,877,713,150; the shares
outstanding are 12,987,771,315 shares; book value per share is NT$15.63



<P align="left" style="margin-left:1%; font-size: 12pt">4.Share conversion operations plan: None



<P align="left" style="margin-left:1%; font-size: 12pt">5.Any other matters that need to be specified:



<P align="left" style="margin-left:1%; font-size: 12pt">(1)&nbsp;The company received the SPA authorization letter on January&nbsp;21, 2009.



<P align="left" style="margin-left:1%; font-size: 12pt">(2)&nbsp;The company calculated the book value per share based on the date of capital reduction on
December&nbsp;17, 2008.


<P align="right" style="font-size: 12pt"><B>Exhibit&nbsp;99.2</B>




<P align="left" style="margin-left:1%; font-size: 12pt"><B>Announcement on 2009/01/22: Represent subsidiary UMC CAPITAL CORP. to announce related
materials on investment of MORGAN STANLEY FRN</B>



<P align="left" style="margin-left:1%; font-size: 12pt">1.Name and nature of the subject matter (if preferred shares, the terms and conditions of
issuance shall also be indicated, e.g.dividend yield): MORGAN STANLEY FRN (Floating Rate Note)



<P align="left" style="margin-left:1%; font-size: 12pt">2.Date of occurrence of the event: 2009/01/22



<P align="left" style="margin-left:1%; font-size: 12pt">3.Volume, unit price, and total monetary amount of the transaction: Transaction volume: 99
units, price per unit: USD$100,000, total amount of the transaction:USD$9,900,000



<P align="left" style="margin-left:1%; font-size: 12pt">4.Counterpart to the trade and its relationship to the Company (if the trading counterpart is
a natural person and furthermore is not an actual related party of the Company, the name of the
trading counterpart is not required to be disclosed): Morgan Stanley Private Wealth Management
Hong Kong; None



<P align="left" style="margin-left:1%; font-size: 12pt">5.Where the counterpart to the trade is an actual related party, a public announcement shall
also be made of 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 date of acquisition: N/A



<P align="left" style="margin-left:1%; font-size: 12pt">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: N/A



<P align="left" style="margin-left:1%; font-size: 12pt">7.Matters related to the creditor&#146;s rights currently being disposed of (including types of
collateral of the disposed creditor&#146;s rights; if the creditor&#146;s rights are creditor&#146;s rights
toward a related person, the name of the related person and the book amount of the creditor&#146;s
rights toward such related person currently being disposed of must also be announced): N/A



<P align="left" style="margin-left:1%; font-size: 12pt">8.Anticipated profit or loss from the disposal (not applicable in cases of acquisition of
securities) (where originally deferred, the status or recognition shall be stated and explained):
N/A



<P align="left" style="margin-left:1%; font-size: 12pt">9.Terms of delivery or payment (including payment period and monetary amount), restrictive
covenants in the contract, and other important stipulations: Paid in full in each transaction;
none.



<P align="left" style="margin-left:1%; font-size: 12pt">10.The manner in which the current transaction was decided, the reference basis for the
decision on price, and the decision-making department: Follow the article of the FRN; Receive the
principal of the FRN on due date; The Chairman &#038; President Office



<P align="left" style="margin-left:1%; font-size: 12pt">11.Current cumulative volume, amount, and shareholding percentage of holdings of the security
being traded (including the current trade) and status of any restriction of rights (e.g.pledges):
cumulative volume:0 units; amount: USD$0; percentage of holdings: N/A



<P align="left" style="margin-left:1%; font-size: 12pt">12.Current ratio of long or short term securities investment (including the current trade) to
the total assets and shareholder&#146;s equity as shown in the most recent financial statement and the
operating capital as shown in the most recent financial statement: ratio of total assets: 63.50%
ratio of shareholder&#146;s equity: 63.56%; the operational capital as shown in the most recent
financial statement: USD$27,670,046



<P align="left" style="margin-left:1%; font-size: 12pt">13.Broker and broker&#146;s fee: N/A



<P align="left" style="margin-left:1%; font-size: 12pt">14.Concrete purpose or use of the acquisition or disposition: financing operation



<P align="left" style="margin-left:1%; font-size: 12pt">15.Net worth per share of company underlying securities acquired or disposed of: N/A



<P align="left" style="margin-left:1%; font-size: 12pt">16.Do the directors have any objection to the present transaction?: No



<P align="left" style="margin-left:1%; font-size: 12pt">17.Has the CPA issued an opinion on the unreasonableness of the price of the current
transaction?: No



<P align="left" style="margin-left:1%; font-size: 12pt">18.Any other matters that need to be specified: None


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




<P align="left" style="margin-left:1%; font-size: 12pt"><B>To announce related materials on acquisition of machinery and equipment</B>



<P align="left" style="margin-left:1%; 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



<P align="left" style="margin-left:1%; font-size: 12pt">2.Date of the occurrence of the event: 2008/02/27~2009/01/21



<P align="left" style="margin-left:1%; font-size: 12pt">3.Transaction volume (e.g.XX square meters, equivalent to XX p&#146;ing), unit price, total
transaction price: Transaction volume: one batch; average unit price:$735,354,244 NTD; total
transaction price:$735,354,244 NTD



<P align="left" style="margin-left:1%; font-size: 12pt">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): MURATA MACHINERY TAIWAN,LTD.; non-related party
transaction



<P align="left" style="margin-left:1%; font-size: 12pt">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



<P align="left" style="margin-left:1%; font-size: 12pt">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



<P align="left" style="margin-left:1%; font-size: 12pt">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



<P align="left" style="margin-left:1%; font-size: 12pt">8.Terms of delivery or payment (including payment period and monetary amount): 1) 90% paid
upon shipment; 10% paid after acceptance 2) 100% paid after acceptance



<P align="left" style="margin-left:1%; font-size: 12pt">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: transaction: price negotiation; the reference basis for the decision on price: market
price. The decision-making department: the Selection Meeting



<P align="left" style="margin-left:1%; font-size: 12pt">10.Name of the professional appraisal institution and its appraisal amount: Not applicable



<P align="left" style="margin-left:1%; font-size: 12pt">11.Reason for any significant discrepancy with the transaction amount, and opinion of the
certifying CPA: Not applicable



<P align="left" style="margin-left:1%; font-size: 12pt">12.Is the appraisal report price a limited price or specific price?: Not applicable



<P align="left" style="margin-left:1%; font-size: 12pt">13.Has an appraisal report not yet been obtained?: Not applicable



<P align="left" style="margin-left:1%; font-size: 12pt">14.Reason an appraisal report has not yet been obtained: Not applicable



<P align="left" style="margin-left:1%; font-size: 12pt">15.Broker and broker&#146;s fee: Not applicable



<P align="left" style="margin-left:1%; font-size: 12pt">16.Concrete purpose or use of the acquisition or disposition: To produce integrated circuits



<P align="left" style="margin-left:1%; font-size: 12pt">17.Do the directors have any objection to the present transaction?: No



<P align="left" style="margin-left:1%; font-size: 12pt">18.Any other matters that need to be specified: None



<P align="left" style="margin-left:1%; font-size: 12pt; text-indent: 42%"><B>Exhibit&nbsp;99.4</B>



<P align="left" style="margin-left:1%; font-size: 12pt"><B>To announce accumulative shares repurchased exceeding NTD$300&nbsp;million in value</B>



<P align="left" style="margin-left:1%; font-size: 12pt">1.Date the cumulative number of shares repurchased in the current repurchase accounted for 2
percent or more of the shares issued by the company or the cumulative value of shares repurchased
amounted to NT$300&nbsp;million or more: 2009/02/04



<P align="left" style="margin-left:1%; font-size: 12pt">2.Number of shares repurchased this time: 45,695,000 shares



<P align="left" style="margin-left:1%; font-size: 12pt">3.Type of shares repurchased this time: Common share



<P align="left" style="margin-left:1%; font-size: 12pt">4.Total monetary amount of shares repurchased this time: NTD$346,253,318



<P align="left" style="margin-left:1%; font-size: 12pt">5.Average repurchase price per share this time: NTD$7.58



<P align="left" style="margin-left:1%; font-size: 12pt">6.Cumulative number of own shares held during the repurchase period: 136,874,000 shares



<P align="left" style="margin-left:1%; font-size: 12pt">7.Ratio of cumulative number of own shares held during the repurchase period to the total
number of the Company&#146;s issued shares: 1.01



<P align="left" style="margin-left:1%; font-size: 12pt">8.Any other matters that need to be specified: None


<P align="left" style="font-size: 12pt; text-indent: 43%"><B>Exhibit&nbsp;99.5</B>


<P align="left" style="font-size: 12pt"><B>UMC announced its unconsolidated operating results for the fourth quarter of 2008</B>
<BR>
1.Date of the investor/press conference: 2009/02/10
<BR>
2.Location of the investor/press conference: 3rd Floor, Far Eastern Plaza Hotel, 201 Tunhwa South
Rd., Sec. 2, Taipei
<BR>
3.Financial and business related information: United Microelectronics Corporation (NYSE: UMC; TSE:
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 2008. Year-over-year revenue decreased
about 32.9% to NT$18.54&nbsp;billion from NT$27.62&nbsp;billion, and a 25.1% QoQ decrease from NT$24.75
billion in 4Q08.The gross margin rate was 10.2%, the operating margin was -6.3%. Affected by the
impairment loss, net non-operating loss was NT$21.78&nbsp;billion, net loss was NT$23.51&nbsp;billion and
loss per share was NT$1.81 for the fourth quarter of 2008. For 2008 whole year, the operating
income was NT$92.53&nbsp;billion, gross margin was 16.9%;opertaing gain was NT$2.3&nbsp;billion and operating
margin was 2.5%. Influenced by impairment loss in 2H08,net non-operating loss is NT$23.7&nbsp;billion.
The company has a net loss of NT$22.32&nbsp;billion and loss per share of $1.7 for 2008.
<BR>
Dr.&nbsp;Shih-Wei Sun, CEO of UMC said, &#147;The global economic recession in 4Q08 also impacted UMC,
characterized by a sharp drop in customer demand during the quarter. For the quarter, wafer
shipments dropped to 567 thousand 8-inch equivalent wafers. Customers still remain conservative
about end market demand and are strictly controlling their purchase orders and inventory levels.
However, UMC&#146;s internal indicators have shown signs that the demand drop may have bottomed out, and
we are closely watching for signs of recovery. Although it is difficult to predict upcoming
industry conditions, UMC R&#038;D for advanced technologies remains on schedule as originally planned.
<BR>
Many customers are adopting our 40/45nm technologies with customer products currently in pilot
production using low-power and high-performance logic processes. In addition, we have already
proven high-k/metal-gate (HK/MG) technology with yielding 45nm SRAM test products. This is an
important milestone for UMC&#146;s HK/MG technology. We are also an industry leader in 28nm, having
independently developed the foundry industry&#146;s first fully functional 28nm SRAM chip.
<BR>
These technology breakthroughs will further enhance our long-term competitiveness.&#148; Mr.Chitung Liu,
CFO of UMC said, &#147;UMC always follows financial accounting standards strictly, and we hope that our
financial report can timely reflect the company&#146;s overall financial status. UMC had net
non-operating losses of NT$21.78&nbsp;billion in 4Q08, separated into three main parts: (1)&nbsp;under the
impact of the global financial crisis, we recognized investment losses of NT$12.32&nbsp;billion and
other-than-temporary losses on financial assets of NT$2.82&nbsp;billion pursuant to ROC GAAP SFAS No.&nbsp;5
and SFAS No.&nbsp;34, respectively; (2)&nbsp;the impairment losses for goodwill and idle assets totaling
NT$4.07&nbsp;billion were recognized pursuant to SFAS No.&nbsp;35; (3)&nbsp;the loss on decline in market value of
inventories, NT$2.68&nbsp;billion, was recognized pursuant to SFAS No.&nbsp;10. However, UMC had net cash
inflow of NT$10.93&nbsp;billion during 4Q, since all of the aforementioned non-operating losses were
non-cash charges.&#148; Dr.&nbsp;Sun continued, &#147;In the second half of 2008, UMC took solid steps towards
enhancing UMC operations, including improving production efficiency, implementing cost
rationalization policies, and streamlining human resource allocation. Through cost-control
measures, we have lowered our operating breakeven point to approximately 60% utilization rate.
Going forward, we will continue to enhance execution and monitor results to look for areas that can
be further improved upon.
<BR>
UMC has independent R&#038;D and solid manufacturing capabilities backed by a healthy financial
structure, and supported through sufficient operating capital. We will continue to strengthen the
development of our advanced technologies, and follow our Customer-Driven Foundry Solution strategy
to provide customized solutions to our global foundry customers.&#148;


<P align="left" style="font-size: 12pt">4.Any other matters that need to be specified: None



<P align="left" style="margin-left:1%; font-size: 12pt; text-indent: 42%"><B>Exhibit&nbsp;99.6</B>


<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><B>To clarify reports on Commercial Times on Feb 10, 2009</B></TD>
</TR>

</TABLE>


<P align="left" style="font-size: 12pt">1.Name of the reporting media: Economic Daily News, A1
<BR>
2.Date of the report: 2009/02/10
<BR>
3.Content of the report: UMC sell machinery to KYEC
<BR>
4.Summary of the information provided by investors: None
<BR>
5.Company&#146;s explanation of the reportage or provided information: The Company&#146;s policy is to follow
the Regulations Governing the Acquisition and Disposal of Assets by Public Companies and announce
the material machinery transactions when necessary. The company has no comment on the report
related to UMC&#146;s operating activities published by the mass media.
<BR>
6.Countermeasures: None
<BR>
7.Any other matters that need to be specified: None



<P align="left" style="margin-left:1%; font-size: 12pt; text-indent: 42%"><B>Exhibit&nbsp;99.7</B>



<P align="left" style="margin-left:1%; font-size: 12pt"><B>To announce accumulative shares repurchased exceeding NTD$300&nbsp;million in value</B>



<P align="left" style="margin-left:1%; font-size: 12pt">1.Date the cumulative number of shares repurchased in the current repurchase accounted for 2
percent or more of the shares issued by the company or the cumulative value of shares repurchased
amounted to NT$300&nbsp;million or more: 2009/02/10



<P align="left" style="margin-left:1%; font-size: 12pt">2.Number of shares repurchased this time: 60,700,000 shares



<P align="left" style="margin-left:1%; font-size: 12pt">3.Type of shares repurchased this time: Common share



<P align="left" style="margin-left:1%; font-size: 12pt">4.Total monetary amount of shares repurchased this time: NTD$480,780,436



<P align="left" style="margin-left:1%; font-size: 12pt">5.Average repurchase price per share this time: NTD$7.92



<P align="left" style="margin-left:1%; font-size: 12pt">6.Cumulative number of own shares held during the repurchase period: 197,574,000 shares



<P align="left" style="margin-left:1%; font-size: 12pt">7.Ratio of cumulative number of own shares held during the repurchase period to the total
number of the Company&#146;s issued shares: 1.46



<P align="left" style="margin-left:1%; font-size: 12pt">8.Any other matters that need to be specified: None



<P align="left" style="margin-left:1%; font-size: 12pt; text-indent: 42%"><B>Exhibit&nbsp;99.8</B>



<P align="left" style="margin-left:1%; font-size: 12pt"><B>The Company&#146;s impairment of assets by applying ROC SFAS No.&nbsp;34</B>



<P align="left" style="margin-left:1%; font-size: 12pt">1.Date of occurrence of the event: 2009/02/10



<P align="left" style="margin-left:1%; font-size: 12pt">2.Company name: United Microelectronics Corp.



<P align="left" style="margin-left:1%; font-size: 12pt">3.Relationship to the Company (please enter &#147;head office&#148; or &#147;affiliate company&#148;): head
office



<P align="left" style="margin-left:1%; font-size: 12pt">4.Reciprocal shareholding ratios: N/A



<P align="left" style="margin-left:1%; font-size: 12pt">5.Cause of occurrence: none



<P align="left" style="margin-left:1%; font-size: 12pt">6.Countermeasures: none



<P align="left" style="margin-left:1%; font-size: 12pt">7.Any other matters that need to be specified: The company announced the effect of the
impairment loss from Hsun-Chieh Investment Company (1)&nbsp;Following the impairment test pursuant to
ROC SFAS No.34, Hsun-Chieh Investment Company, the company&#146;s long-term investment accounted for
under the equity method, has decided to recognize an other-than-temporary impairment loss. The
company recognized a proportional loss of NT$9.2&nbsp;billion under the equity method. This is a
non-cash impairment loss, and does not have any impact on the working capital and cash flow of the
company.



<P align="left" style="margin-left:1%; font-size: 12pt">(2)&nbsp;The company reviewed and evaluated the investment periodically, and has recorded the
possible investment loss under unrealized loss on financial instruments under stockholder&#146;s
equity. This impairment of assets has a minor effect on shareholders equity and net value per
share in the current period.



<P align="left" style="margin-left:1%; font-size: 12pt">(3)&nbsp;All figures have not yet been audited by an independent accountant.



<P align="left" style="margin-left:1%; font-size: 12pt; text-indent: 42%"><B>Exhibit&nbsp;99.9</B>



<P align="left" style="margin-left:1%; font-size: 12pt"><B>To announce accumulative shares repurchased exceeding NTD$300&nbsp;million in value</B>



<P align="left" style="margin-left:1%; font-size: 12pt">1.Date the cumulative number of shares repurchased in the current repurchase accounted for 2
percent or more of the shares issued by the company or the cumulative value of shares repurchased
amounted to NT$300&nbsp;million or more: 2009/02/12



<P align="left" style="margin-left:1%; font-size: 12pt">2.Number of shares repurchased this time: 55,860,000 shares



<P align="left" style="margin-left:1%; font-size: 12pt">3.Type of shares repurchased this time: Common share



<P align="left" style="margin-left:1%; font-size: 12pt">4.Total monetary amount of shares repurchased this time: NTD$450,784,884



<P align="left" style="margin-left:1%; font-size: 12pt">5.Average repurchase price per share this time: NTD$8.07



<P align="left" style="margin-left:1%; font-size: 12pt">6.Cumulative number of own shares held during the repurchase period: 253,434,000 shares



<P align="left" style="margin-left:1%; font-size: 12pt">7.Ratio of cumulative number of own shares held during the repurchase period to the total
number of the Company&#146;s issued shares: 1.87



<P align="left" style="margin-left:1%; font-size: 12pt">8.Any other matters that need to be specified: None



<P align="left" style="margin-left:1%; font-size: 12pt; text-indent: 42%"><B>Exhibit&nbsp;99.10</B>



<P align="left" style="margin-left:1%; font-size: 12pt"><B>To announce accumulative shares repurchased exceeding NTD$300&nbsp;million in value</B>



<P align="left" style="margin-left:1%; font-size: 12pt">1.Date the cumulative number of shares repurchased in the current repurchase accounted for 2
percent or more of the shares issued by the company or the cumulative value of shares repurchased
amounted to NT$300&nbsp;million or more: 2009/02/16



<P align="left" style="margin-left:1%; font-size: 12pt">2.Number of shares repurchased this time: 46,566,000 shares



<P align="left" style="margin-left:1%; font-size: 12pt">3.Type of shares repurchased this time: Common share



<P align="left" style="margin-left:1%; font-size: 12pt">4.Total monetary amount of shares repurchased this time: NTD$398,839,693



<P align="left" style="margin-left:1%; font-size: 12pt">5.Average repurchase price per share this time: NTD$8.57



<P align="left" style="margin-left:1%; font-size: 12pt">6.Cumulative number of own shares held during the repurchase period: 300,000,000 shares



<P align="left" style="margin-left:1%; font-size: 12pt">7.Ratio of cumulative number of own shares held during the repurchase period to the total
number of the Company&#146;s issued shares: 2.22



<P align="left" style="margin-left:1%; font-size: 12pt">8.Any other matters that need to be specified: None



<P align="left" style="margin-left:1%; font-size: 12pt; text-indent: 42%"><B>Exhibit&nbsp;99.11</B>



<P align="left" style="margin-left:1%; font-size: 12pt"><B>The completion of share buy-back program</B>



<P align="left" style="margin-left:1%; font-size: 12pt">1.Originally determined ceiling on total monetary amount of the share repurchase:
NTD$65,426,786,000



<P align="left" style="margin-left:1%; font-size: 12pt">2.Original scheduled period for the repurchase: 2008/12/17~2009/02/16



<P align="left" style="margin-left:1%; font-size: 12pt">3.Originally determined number of shares to be repurchased: A maximum of 300,000,000 shares



<P align="left" style="margin-left:1%; font-size: 12pt">4.Originally determined type of shares to be repurchased: Common shares



<P align="left" style="margin-left:1%; font-size: 12pt">5.Originally determined repurchase price range: NTD$5.12 to NTD$11.52 per share.



<P align="left" style="margin-left:1%; font-size: 12pt">6.Date of expiry of the repurchase period or completion of the repurchase: 2009/02/16



<P align="left" style="margin-left:1%; font-size: 12pt">7.Number of shares repurchased: 300,000,000 shares



<P align="left" style="margin-left:1%; font-size: 12pt">8.Type of shares repurchased: Common shares



<P align="left" style="margin-left:1%; font-size: 12pt">9.Total monetary amount of shares repurchased: NTD$2,393,337,299



<P align="left" style="margin-left:1%; font-size: 12pt">10.Average repurchase price per share: NTD$7.98



<P align="left" style="margin-left:1%; font-size: 12pt">11.Cumulative number of own shares held: 300,000,000 shares



<P align="left" style="margin-left:1%; font-size: 12pt">12.Ratio of cumulative number of own shares held during the repurchase period to the total
number of the Company&#146;s issued shares: 2.22%



<P align="left" style="margin-left:1%; font-size: 12pt">13.Reason for non-completion of the share repurchase at expiry of the repurchase period: Not
applicable



<P align="left" style="margin-left:1%; font-size: 12pt">14.Any other matters that need to be specified: None


<P align="right" style="font-size: 12pt"><B>Exhibit&nbsp;99.12</B>



<P align="center" style="font-size: 12pt"><B>United Microelectronics Corporation</B><BR>
February&nbsp;23, 2009



<P align="left" style="font-size: 12pt">This is to report the changes or status of 1) Sales volume 2) Funds lent to other parties 3)
Endorsements and guarantees 4) Financial derivative transactions for the period of January&nbsp;2009.


<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="13%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="9%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="9%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="6%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="6%">&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="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 12pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Period</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" 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>2009</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>2008</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><DIV style="margin-left:10px; text-indent:-10px"><I>January</I></DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="left"><I>Invoice amount<BR></I></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,291,303</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">6,650,679</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">(4,359,376</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD nowrap align="right">-66</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><I>2009</I></DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" nowrap align="left"><I>Invoice amount<BR></I></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,291,303</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">6,650,679</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">(4,359,376</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD nowrap align="right">-66</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><I>January</I></DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" nowrap align="left"><I>Net sales<BR></I></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,152,994</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">8,215,553</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">(5,062,559</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD nowrap align="right">-62</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><I>2009</I></DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" nowrap align="left"><I>Net sales<BR></I></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,152,994</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">8,215,553</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">(5,062,559</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD nowrap align="right">-62</TD>
    <TD nowrap>%</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)</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="50%">&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="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="14%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="14%">&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><DIV style="margin-left:10px; text-indent:-10px"><FONT style="font-size: 12pt"><I>UMC</I></FONT></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="right"><FONT style="font-size: 12pt"></FONT></TD>
    <TD align="right"><FONT style="font-size: 12pt">0</FONT></TD>
    <TD><FONT style="font-size: 12pt"></FONT></TD>
    <TD>&nbsp;</TD>
    <TD align="right"><FONT style="font-size: 12pt"></FONT></TD>
    <TD align="right"><FONT style="font-size: 12pt">0</FONT></TD>
    <TD><FONT style="font-size: 12pt"></FONT></TD>
    <TD>&nbsp;</TD>
    <TD align="right"><FONT style="font-size: 12pt"></FONT></TD>
    <TD align="right"><FONT style="font-size: 12pt">25,975,543</FONT></TD>
    <TD><FONT style="font-size: 12pt"></FONT></TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><FONT style="font-size: 12pt"><I>UMC&#146;s subsidiaries</I></FONT></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="right"><FONT style="font-size: 12pt"></FONT></TD>
    <TD align="right"><FONT style="font-size: 12pt">0</FONT></TD>
    <TD><FONT style="font-size: 12pt"></FONT></TD>
    <TD>&nbsp;</TD>
    <TD align="right"><FONT style="font-size: 12pt"></FONT></TD>
    <TD align="right"><FONT style="font-size: 12pt">0</FONT></TD>
    <TD><FONT style="font-size: 12pt"></FONT></TD>
    <TD>&nbsp;</TD>
    <TD align="right"><FONT style="font-size: 12pt"></FONT></TD>
    <TD align="right"><FONT style="font-size: 12pt">110,595</FONT></TD>
    <TD><FONT style="font-size: 12pt"></FONT></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">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="50%">&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="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="14%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="14%">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>Change in This Month</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>Balance as of period end</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>Limit of endorsements</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="font-size: 10pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><I>UMC</I></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="right"><FONT style="font-size: 12pt"></FONT></TD>
    <TD align="right"><FONT style="font-size: 12pt">0</FONT></TD>
    <TD><FONT style="font-size: 12pt"></FONT></TD>
    <TD>&nbsp;</TD>
    <TD align="right"><FONT style="font-size: 12pt"></FONT></TD>
    <TD align="right"><FONT style="font-size: 12pt">0</FONT></TD>
    <TD><FONT style="font-size: 12pt"></FONT></TD>
    <TD>&nbsp;</TD>
    <TD align="right"><FONT style="font-size: 12pt"></FONT></TD>
    <TD align="right"><FONT style="font-size: 12pt">51,951,085</FONT></TD>
    <TD><FONT style="font-size: 12pt"></FONT></TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><FONT style="font-size: 10pt"><I>UMC&#146;s subsidiaries</I></FONT></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="right"><FONT style="font-size: 12pt"></FONT></TD>
    <TD align="right"><FONT style="font-size: 12pt">0</FONT></TD>
    <TD><FONT style="font-size: 12pt"></FONT></TD>
    <TD>&nbsp;</TD>
    <TD align="right"><FONT style="font-size: 12pt"></FONT></TD>
    <TD align="right"><FONT style="font-size: 12pt">0</FONT></TD>
    <TD><FONT style="font-size: 12pt"></FONT></TD>
    <TD>&nbsp;</TD>
    <TD align="right"><FONT style="font-size: 12pt"></FONT></TD>
    <TD align="right"><FONT style="font-size: 12pt">4,161,134</FONT></TD>
    <TD><FONT style="font-size: 12pt"></FONT></TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD colspan="5" align="left"><FONT style="font-size: 10pt"><I>UMC endorses for subsidiaries</I></FONT><BR></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><I><FONT style="font-size: 10pt"></I><FONT style="font-size: 12pt">0</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><FONT style="font-size: 12pt"></FONT></TD>
    <TD align="right"><FONT style="font-size: 12pt">0</FONT></TD>
    <TD><FONT style="font-size: 12pt"></FONT></TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD colspan="5" align="left"><FONT style="font-size: 10pt"><I>UMC&#146;s subsidiaries endorse for UMC</I></FONT><BR></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><I><FONT style="font-size: 10pt"></I><FONT style="font-size: 12pt">0</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><FONT style="font-size: 12pt"></FONT></TD>
    <TD align="right"><FONT style="font-size: 12pt">0</FONT></TD>
    <TD><FONT style="font-size: 12pt"></FONT></TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD colspan="5" align="left"><FONT style="font-size: 10pt"><I>UMC endorses for PRC companies</I></FONT><BR></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><I><FONT style="font-size: 10pt"></I><FONT style="font-size: 12pt">0</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><FONT style="font-size: 12pt"></FONT></TD>
    <TD align="right"><FONT style="font-size: 12pt">0</FONT></TD>
    <TD><FONT style="font-size: 12pt"></FONT></TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD colspan="5" align="left"><FONT style="font-size: 10pt"><I>UMC&#146;s subsidiaries endorse for PRC companies</I></FONT><BR></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><I><FONT style="font-size: 10pt"></I><FONT style="font-size: 12pt">0</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><FONT style="font-size: 12pt"></FONT></TD>
    <TD align="right"><FONT style="font-size: 12pt">0</FONT></TD>
    <TD><FONT style="font-size: 12pt"></FONT></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</TD>
</TR>

</TABLE>


<P align="left" style="font-size: 12pt">a Hedging purpose : NT$ thousand

<DIV align="center">
<TABLE style="font-size: 12pt" cellspacing="0" border="0" cellpadding="0" width="95%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="62%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="6%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="7%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="6%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="7%">&nbsp;</TD>
</TR>
<TR style="font-size: 12pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><I>Financial instruments</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000">Forwards</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000">IRS</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><I>Deposit Paid</I></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><I>Royalty Income (Paid)</I></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><I>Unwritten-off Trading Contracts</I></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,834,960</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">7,500,000</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><I>Fair Value</I></DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">(57,295</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">82,915</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><I>Net Profit from Fair Value</I></DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">(117,045</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,554</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><I>Written-off Trading Contracts</I></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">5,779,253</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">7,500,000</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><I>Realized profit (loss)</I></DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">(1,058</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="left" style="font-size: 12pt">b Trading purpose :</FONT><FONT style="font-size: 10pt"> </FONT><FONT style="font-size: 12pt">NT$ thousand
</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="92%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 12pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><I>Financial instruments</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000">Credit-linked Deposits</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><I>Deposit Paid</I></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><I>Unwritten-off Trading Contracts</I></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><I>Net Profit from Market Value</I></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><I>Written-off Trading Contracts</I></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px"><I>Realized profit (loss)</I></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


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


<P align="right" style="font-size: 12pt"><B>Exhibit&nbsp;99.13</B>



<P align="center" style="font-size: 12pt"><B>United Microelectronics Corporation</B><BR>
For the month of January, 2009



<P align="left" style="font-size: 12pt">This is to report 1) the trading of directors, supervisors, 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, supervisors, executive officers and 10% shareholders of UMC; 3) the
acquisition assets by UMC; 4) the disposition of assets by UMC for the month of January, 2009.


<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, supervisors, 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="20%">&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="7%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="7%">&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="7%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="7%">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><I>Number of shares</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><I>Number of shares held as</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><I>held as of</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><I>of</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD nowrap align="left" colspan="3" style="border-bottom: 1px solid #000000"><I>Title</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><I>Name</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><I>December 31, 2008</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><I>January 31, 2009</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><I>Changes</I></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<!-- 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: 10pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right"><FONT style="font-size: 12pt">2)</FONT></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><FONT style="font-size: 12pt">The pledge and clear of pledge of UMC common shares by directors, supervisors, executive
officers and 10% shareholders:</FONT></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="20%">&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="7%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="7%">&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="7%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="7%">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><I>Number of shares</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><I>Number of shares held as</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><I>held as of</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><I>of</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD nowrap align="left" colspan="3" style="border-bottom: 1px solid #000000"><I>Title</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><I>Name</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><I>December 31, 2008</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><I>January 31, 2009</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><I>Changes</I></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<!-- 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: 10pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="right"><FONT style="font-size: 12pt">3)</FONT></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><FONT style="font-size: 12pt">The acquisition assets (NT$ Thousand)</FONT></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="72%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="4%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="4%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="4%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="4%">&nbsp;</TD>
</TR>
<TR style="font-size: 12pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><I>Description of assets</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><I>January</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><I>2009</I></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px">Fixed assets</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">44,864</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">44,864</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px">Semiconductor Manufacturing Equipment</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">379,666</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">379,666</TD>
    <TD>&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>The disposition of assets (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="84%">&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="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 12pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><I>Description of assets</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><I>January</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><I>2009</I></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px">Fixed assets</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD><DIV style="margin-left:10px; text-indent:-10px">Semiconductor Manufacturing Equipment</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



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


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