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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001047469-04-028866.txt : 20040916
<SEC-HEADER>0001047469-04-028866.hdr.sgml : 20040916
<ACCEPTANCE-DATETIME>20040915183348
ACCESSION NUMBER:		0001047469-04-028866
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20040914
FILED AS OF DATE:		20040916
DATE AS OF CHANGE:		20040915

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CELESTICA INC
		CENTRAL INDEX KEY:			0001030894
		STANDARD INDUSTRIAL CLASSIFICATION:	PRINTED CIRCUIT BOARDS [3672]
		IRS NUMBER:				980185558
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		6-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14832
		FILM NUMBER:		041032546

	BUSINESS ADDRESS:	
		STREET 1:		12 CONCORD PL
		STREET 2:		7TH FL
		CITY:			ONTARIO CANADA
		STATE:			A6
		ZIP:			M3C 1V7
		BUSINESS PHONE:		416442211
</SEC-HEADER>
<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>a2143505z6-k.htm
<DESCRIPTION>FORM 6-K
<TEXT>
<HTML>
<HEAD>

</HEAD>
<BODY BGCOLOR="#FFFFFF" LINK=BLUE  VLINK=PURPLE>
<BR>
<FONT SIZE=3 ><A HREF="#04TOR1963_1">QuickLinks</A></FONT>
<font size=3> -- Click here to rapidly navigate through this document</font>

<P><FONT SIZE=2>
<hr noshade width=100% align=left size=4>
<hr noshade width=100% align=left size=1> </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=5><B>FORM 6-K  </B></FONT></P>

<P ALIGN="CENTER"><FONT SIZE=5><B> SECURITIES AND EXCHANGE COMMISSION<BR>  </B></FONT><FONT SIZE=2>Washington,&nbsp;D.C. 20549 </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=3><B>Report of Foreign Private Issuer<BR>
Pursuant to Rule&nbsp;13a-16 or&nbsp;15d-16 of<BR>
the Securities Exchange Act of 1934  </B></FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2>For the month of September&nbsp;2004 </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2>001-14832<BR>
(</FONT><FONT SIZE=2><I>Commission File Number</I></FONT><FONT SIZE=2>) </FONT></P>

<HR NOSHADE>
<P ALIGN="CENTER"><BR><FONT SIZE=5><B>CELESTICA&nbsp;INC.<BR>  </B></FONT><FONT SIZE=2>(</FONT><FONT SIZE=2><I>Translation of registrant's name into English</I></FONT><FONT SIZE=2>) </FONT></P>

<HR NOSHADE>
<P ALIGN="CENTER"><FONT SIZE=2><B>1150 Eglinton Avenue East<BR>
Toronto, Ontario<BR>
Canada, M3C&nbsp;1H7<BR>
(416)&nbsp;448-5800<BR>
(</B></FONT><FONT SIZE=2><I>Address of principal executive offices</I></FONT><FONT SIZE=2>) </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Indicate
by check mark whether the registrant files or will file annual reports under cover of Form&nbsp;20-F or Form&nbsp;40-F: </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2>Form&nbsp;20-F&nbsp;&nbsp;<FONT
FACE="WINGDINGS">&#253;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Form&nbsp;40-F&nbsp;&nbsp;<FONT FACE="WINGDINGS">&#111;</FONT>
</FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Indicate by check mark whether the registrant is submitting the Form&nbsp;6-K in paper as permitted by
Regulation&nbsp;S-T&nbsp;Rule&nbsp;101(b)(1):&nbsp;<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Indicate
by check mark whether the registrant is submitting the Form&nbsp;6-K in paper as permitted by
Regulation&nbsp;S-T&nbsp;Rule&nbsp;101(b)(7):&nbsp;<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Indicate
by check mark whether by furnishing the information contained in this Form, is the registrant also thereby furnishing the information to the Commission pursuant to
Rule&nbsp;12g3-2(b) under the Securities Exchange Act of 1934. </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2>Yes&nbsp;&nbsp;<FONT FACE="WINGDINGS">&#111;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;No&nbsp;&nbsp;<FONT
FACE="WINGDINGS">&#253;</FONT> </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If "Yes" is marked, indicate below the file number assigned to the registrant in connection with
Rule&nbsp;12g3-2(b):&nbsp;82-<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> </FONT></P>


<P><FONT SIZE=2><hr
noshade width=100% align=left size=1>
<hr noshade width=100% align=left size=4> </FONT></P>

<HR NOSHADE>
<P style='page-break-before:always'></p>
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<P ALIGN="CENTER"><FONT SIZE=2><B>Celestica&nbsp;Inc.<BR>
Form&nbsp;6-K<BR>
Month of September&nbsp;2004  </B></FONT></P>


<P><FONT SIZE=2>The
following information filed with this Form&nbsp;6-K is not incorporated by reference in Celestica's registration statements, the prospectuses included therein, or any registration
statement subsequently filed by Celestica with the Securities and Exchange Commission: </FONT></P>

<UL>
<DL compact>
<DT style='margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD><FONT SIZE=2>Press
Release, dated September&nbsp;14, 2004, the text of which is attached hereto as Exhibit&nbsp;99.1 and&nbsp;is incorporated herein by reference. </FONT></DD></DL>
</UL>
<BR>

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<TABLE WIDTH="100%" BORDER=0 CELLSPACING=0 CELLPADDING=0>
<TR VALIGN="BOTTOM">
<TH WIDTH="8%" ALIGN="LEFT"><FONT SIZE=1><B>Exhibits<BR> </B></FONT><HR NOSHADE></TH>
<TH WIDTH="2%"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH WIDTH="90%" ALIGN="LEFT"><FONT SIZE=1>&nbsp;</FONT><BR></TH>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="8%"><FONT SIZE=2>99.1</FONT></TD>
<TD WIDTH="2%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="90%"><FONT SIZE=2>Press Release, dated September&nbsp;14, 2004</FONT></TD>
</TR>
</TABLE>
<!-- end of user-specified TAGGED TABLE -->

<HR NOSHADE>
<P style='page-break-before:always'></p>
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<P ALIGN="CENTER"><FONT SIZE=2><A
NAME="bg1963_signatures"> </A>
<A NAME="toc_bg1963_1"> </A>
<BR></FONT><FONT SIZE=2><B>SIGNATURES    <BR>    </B></FONT></P>

<P><FONT SIZE=2>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. </FONT></P>

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<TR VALIGN="TOP">
<TD WIDTH="44%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="2%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD COLSPAN=2><FONT SIZE=2>CELESTICA&nbsp;INC.</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="44%"><BR><FONT SIZE=2> Date: September&nbsp;15, 2004</FONT></TD>
<TD WIDTH="2%"><FONT SIZE=2><BR>&nbsp;</FONT></TD>
<TD WIDTH="4%"><FONT SIZE=2><BR>
&nbsp;</FONT></TD>
<TD WIDTH="50%"><FONT SIZE=2><BR>
&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="44%"><BR><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="2%"><FONT SIZE=2><BR>&nbsp;</FONT></TD>
<TD WIDTH="4%"><FONT SIZE=2><BR>
By:</FONT></TD>
<TD WIDTH="50%"><FONT SIZE=2><BR>
/s/&nbsp;&nbsp;</FONT><FONT SIZE=2>ELIZABETH L. DELBIANCO</FONT><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><HR NOSHADE><FONT SIZE=2> Elizabeth L. DelBianco<BR>
Chief Legal Officer<BR></FONT>
</TD>
</TR>
</TABLE>
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<HR NOSHADE>
<P style='page-break-before:always'></p>
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<P ALIGN="CENTER"><FONT SIZE=2><A
NAME="bg1963_exhibit_index"> </A>
<A NAME="toc_bg1963_2"> </A>
<BR></FONT><FONT SIZE=2><B>EXHIBIT INDEX    <BR>    </B></FONT></P>


<P><FONT SIZE=2>99.1&nbsp;&#151;&nbsp;Press
Release, dated September&nbsp;14, 2004 </FONT></P>

<HR NOSHADE>
<P style='page-break-before:always'></p>
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<BR>
<P><br><A NAME="04TOR1963_1">QuickLinks</A><br></P><!-- TOC_BEGIN -->
<FONT SIZE=2><A HREF="#toc_bg1963_1">SIGNATURES</A></FONT><BR>
<FONT SIZE=2><A HREF="#toc_bg1963_2">EXHIBIT INDEX</A></FONT><BR>
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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>a2143505zex-99_1.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
<HTML>
<HEAD>

</HEAD>
<BODY BGCOLOR="#FFFFFF" LINK=BLUE  VLINK=PURPLE>
<BR>
<FONT SIZE=3 ><A HREF="#04TOR1963_2">QuickLinks</A></FONT>
<font size=3> -- Click here to rapidly navigate through this document</font>
<!-- TOC_END -->
<P ALIGN="RIGHT"><FONT SIZE=2><B>Exhibit 99.1</B></FONT></P>

<P><FONT SIZE=2>FOR
IMMEDIATE
RELEASE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tuesday, September&nbsp;14, 2004
 </FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2><A
NAME="da1963_celestica_updates_guidance_for_third_quarter"> </A>
<A NAME="toc_da1963_1"> </A>
<BR></FONT><FONT SIZE=2><B>CELESTICA UPDATES GUIDANCE FOR THIRD QUARTER    <BR>    </B></FONT></P>

<P><FONT SIZE=2>TORONTO,
Ontario&nbsp;&#151;&nbsp;Celestica&nbsp;Inc. (NYSE, TSX: CLS), a world leader in electronics manufacturing services (EMS), today announced an update to its financial
guidance for the third quarter ending September&nbsp;30, 2004. </FONT></P>

<P><FONT SIZE=2>Based
on its current estimates, the company now expects revenue in the range of US$2.05 to US$2.15&nbsp;billion, and adjusted net earnings per share of
US$0.07&nbsp;&#151;&nbsp;US$0.11. The company's previous guidance for the third quarter, which was provided on July&nbsp;22, 2004, was for revenue of US$2.25 to
US$2.40&nbsp;billion and US$0.11 to US$0.17 adjusted net earnings per share. </FONT></P>

<P><FONT SIZE=2>The
company said the revision in revenue is due to recent order reductions from some of its largest communications and IT customers. </FONT></P>

<P><FONT SIZE=2>The
company will hold a conference call tomorrow, Wednesday, September&nbsp;15 at 8:30 am EST to discuss the updated guidance. The conference call can be accessed at
416-640-1907 or at www.celestica.com. </FONT></P>

<P><FONT SIZE=2>The
company's full third quarter results will be released on October&nbsp;21, 2004. </FONT></P>

<P><FONT SIZE=2><B><U>About Celestica</U>  </B></FONT></P>

<P><FONT SIZE=2>Celestica
is a world leader in the delivery of innovative electronics manufacturing services (EMS). Celestica operates a highly sophisticated global manufacturing network with operations in Asia,
Europe and the Americas, providing a broad range of integrated services and solutions to leading OEMs&nbsp;(original equipment manufacturers). Celestica's expertise in quality, technology and supply
chain management, enables the company to provide competitive advantage to its customers by improving time-to-market, scalability and manufacturing efficiency. </FONT></P>


<P><FONT SIZE=2>For
further information on Celestica, visit its website at <U>http://www.celestica.com</U>. The company's security filings can also be accessed at
<U>http://www.sedar.com</U> and <U>http://www.sec.gov</U>. </FONT></P>

<P ALIGN="RIGHT"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;more....
</FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2>-2-
</FONT></P>

<HR NOSHADE>
<P style='page-break-before:always'></p>
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<P><FONT SIZE=2><B><U>Safe Harbour and Fair Disclosure Statement</U>  </B></FONT></P>

<P><FONT SIZE=2><I>This news release contains forward-looking statements related to our future growth, trends in our industry and our financial and operational results and performance that are
based on current expectations, forecasts and assumptions involving risks and uncertainties that could cause actual outcomes and results to differ materially. These risks and uncertainties include, but
are not limited to: the challenges of effectively managing our operations during uncertain economic conditions; the challenge of responding to lower-than-expected customer
demand; the effects of price competition and other business and competitive factors generally affecting the EMS industry; our dependence on the information technology and communications industries;
our dependence on a limited number of customers and on industries affected by rapid technological change; component constraints; variability of operating results among periods; and the ability to
manage our restructuring and the shift of production to lower cost geographies. These and other risks and uncertainties and factors are discussed in the Company's various public filings at
www.sedar.com and http://www.sec.gov, including our Annual Report on Form&nbsp;20-F and&nbsp;subsequent reports on Form&nbsp;6-K filed with the Securities and Exchange
Commission.</I></FONT></P>


<P><FONT SIZE=2><I>We disclaim any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or
otherwise.</I></FONT></P>

<P><FONT SIZE=2><I>As of its date, this press release contains all material information associated with this event.</I></FONT></P>

<P ALIGN="CENTER"><FONT SIZE=2>-&nbsp;30&nbsp;-
</FONT></P>

<P><FONT SIZE=2>For
further information contact: </FONT></P>

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<TR VALIGN="BOTTOM">
<TH WIDTH="49%" ALIGN="CENTER"><FONT SIZE=1>&nbsp;</FONT><BR></TH>
<TH WIDTH="2%"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH WIDTH="49%" ALIGN="LEFT"><FONT SIZE=1>&nbsp;</FONT><BR></TH>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="49%"><FONT SIZE=2>Laurie Flanagan</FONT></TD>
<TD WIDTH="2%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="49%"><FONT SIZE=2>Paul Carpino</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="49%"><FONT SIZE=2>Global Communications</FONT></TD>
<TD WIDTH="2%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="49%"><FONT SIZE=2>Investor Relations</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="49%"><FONT SIZE=2>phone: 416-448-2200</FONT></TD>
<TD WIDTH="2%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="49%"><FONT SIZE=2>phone: 416-448-2211</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD WIDTH="49%"><FONT SIZE=2>email: media@celestica.com</FONT></TD>
<TD WIDTH="2%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="49%"><FONT SIZE=2>email: ir@celestica.com</FONT></TD>
</TR>
</TABLE>
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<HR NOSHADE>
<P style='page-break-before:always'></p>
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<BR>
<P><br><A NAME="04TOR1963_2">QuickLinks</A><br></P><!-- TOC_BEGIN -->
<FONT SIZE=2><A HREF="#toc_da1963_1">CELESTICA UPDATES GUIDANCE FOR THIRD QUARTER</A></FONT><BR>
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