Filed by Millennium Chemicals Inc.
                       Pursuant to Rule 425 under the Securities Act of 1933 and
  Deemed Filed Pursuant to Rule 14a-12 under the Securities Exchange Act of 1934

                                     Subject Company:  Millennium Chemicals Inc.
                            Form S-4 Registration Statement File No.: 333-114877

Date:  October 5, 2004

This filing contains the text of an announcement sent to all employees of
Millennium on October 5, 2004. These materials are being filed pursuant to Rule
425 under the Securities Act of 1933.

MILLENNIUM CHEMICALS                                    INTEGRATION TEAM NOTES


From:     Marie Dreher, Myra Perkinson, Gus Williamson     Date: October 5, 2004

Subject:  LYONDELL-MILLENNIUM PROPOSED TRANSACTION         Location: Hunt Valley
          EXPECTED TO CLOSE DECEMBER 1, 2004


To:       All Employees

Lyondell and Millennium have set Tuesday, November 30, as the date for their
respective special shareholder meetings to consider the proposed transaction.
Pending shareholder approval, the transaction is now expected to close December
1, 2004.

Last week, Lyondell filed an amended joint proxy statement/prospectus with the
U.S. Securities and Exchange Commission (SEC) regarding the proposed transaction
with Millennium. The SEC has declared the joint proxy "effective," and Lyondell
and Millennium are now preparing to mail the joint proxy to their respective
shareholders. Also last week, Lyondell and Millennium set the meeting and record
dates related to the proposed transaction.

Now that the joint proxy is effective, the companies must:

     o    Give the New York Stock Exchange 10 days' advance notice of the record
          date (October 14);

     o    Print and mail the proxy to Lyondell and Millennium shareholders, once
          the record date has passed;

     o    Provide adequate time for shareholder consideration of the proposal.


The following questions and answers are intended to provide all employees with
an update on what is planned following the closing of the proposed transaction
with Lyondell.


Q:   WILL ANYTHING SPECIAL HAPPEN ON THE DAY OF CLOSING?

A:   On or shortly after the proposed  closing date of December 1, all employees
     throughout  the  Lyondell  enterprise  -  at  all  Lyondell,  Equistar  and
     Millennium  locations  globally - will be invited to  participate  in local
     celebration events with the theme,  "Joining  Together,  Growing Together."
     You'll be receiving more information about these events closer to the date.

Q:   AFTER THE PROPOSED  CLOSING,  WILL EVERYTHING STILL BE  "MILLENNIUM"?  WHAT
     NAME WILL WE USE?

A:   The name of the company  will be  "Lyondell  Chemical  Company"  across the
     global enterprise, the Lyondell logo will become the identifying symbol for
     the company.  Over time,  all  business  cards,  uniform  patches and plant
     signage will carry only the Lyondell  logo.  However,  we absolutely do not
     want to spend money on replacing signs and printing a large number of cards
     right now - we have other,  much higher  priorities  for our cash,  such as
     debt  reduction.  Over time,  in the  normal  course of  business,  the new
     corporate identity will be applied as items are replaced or reprinted.

Q:   WHAT WILL  BECOME OF THE  MILLENNIUM  NAME  FOLLOWING  THE  CLOSING  OF THE
     PROPOSED TRANSACTION?

A:   Because  of the legal  requirements  associated  with  public  debt held by
     Millennium, we will continue to exist as a legal entity. Publicly, the name
     will be used primarily in association with our products. For example, sales
     literature  will  refer to  "Millennium's  TiO2" and  customers  will still
     receive separate invoices for our products.  But it will be clear in all of
     the publications  and documents that  post-close,  Millennium is among "The
     Lyondell  Companies"  and most  communications  will take  place  under the
     Lyondell logo.

Q:   AFTER THE CLOSE, HOW WILL WE ANSWER THE PHONE AT ALL OF OUR SITES?

A:   Within a short  time,  we should all answer  "Lyondell  Chemical  Company,"
     "Lyondell  Chemical"  or  simply  "Lyondell."  For the  first  few  months,
     however, it may be helpful to say something such as "Millennium  Chemicals,
     a Lyondell Company" to help introduce callers to the new identity.

Q:   IF A CALLER SAYS, "OH, BUT I WAS CALLING MILLENNIUM," WHAT DO I SAY?

A:   You have the right number.  Millennium is now part of the Lyondell Chemical
     Company.


Q:   WHAT WILL I SAY WHEN ASKED "WHO DO YOU WORK FOR?"

A:   We will all be part of the Lyondell enterprise following the closing of the
     proposed  transaction.  Our paychecks  will continue to have the Millennium
     name,  as it will  continue  to  exist as a  separate  legal  entity  and a
     Lyondell  subsidiary,  but the public  face of the  company  and all of its
     component parts will be Lyondell.  We may make or sell Millennium products,
     or be employed by Millennium  in other roles,  but it will all be under the
     Lyondell  umbrella,  since  that is the way  Lyondell  will  represent  the
     enterprise to the world.

Q:   HOW CAN I GET MORE INFORMATION ABOUT CHANGES THAT MAY OCCUR AFTER THE CLOSE
     OF THE PROPOSED TRANSACTION?

A:   First, make sure you talk with your supervisor.  In addition, there will be
     lots of information  and resources  made  available  closer to the proposed
     closing  date and in the  weeks  that  follow.  We'll  use  email,  InSite,
     employee meetings and other, regular communications mechanisms to help keep
     you informed.

Q:   WHAT IF I HAVE QUESTIONS OR SUGGESTIONS RELATED TO THE PROPOSED TRANSACTION
     AND INTEGRATION ACTIVITIES?

A:   If you have  questions or suggestions  related to the proposed  transaction
     and integration activities,  you may submit a question directly by email to
     Ask Millennium.  (We cannot reply to individual  employees but will address
     questions of general interest in leadership updates. If you have a question
     specific  to your  job or  function,  please  continue  to talk  with  your
     supervisor.)


These materials contain forward-looking statements within the meaning of the
Private Securities Litigation Reform Act of 1995. Such statements include, but
are not limited to, statements about the benefits of the proposed transaction
between Lyondell Chemical Company ("Lyondell") and Millennium Chemicals Inc.
("Millennium") including Millennium's plans, objectives, expectations and
intentions and other statements that are not historical facts. Such statements
are based upon the current beliefs and expectations of Millennium's management
and are subject to significant risks and uncertainties. Actual results may
differ materially from those set forth in the forward-looking statements. The
following factors, among others, could affect the proposed transaction and the
anticipated results: approval by Lyondell's and Millennium's respective
shareholders and the parties' ability to achieve expected synergies in the
transaction within the expected timeframes or at all. Additional factors that
could cause Millennium's results to differ materially from those described in
the forward-looking statements can be found in Exhibit 99.1 to Millennium's
Annual Report on Form 10-K for the year ended December 31, 2003, which was filed
with the SEC on March 12, 2004, Exhibit 99.1 to Millennium's Quarterly Report on
Form 10-Q for the quarter ended March 31, 2004, which was filed with the SEC on
May 14, 2004 and the Form S-4 (as defined below). Millennium disclaims any
obligation to update any forward-looking statements, whether as a result of new
information, future events, or otherwise.


In addition, in connection with the proposed transaction, Lyondell and
Millennium have filed relevant materials with the SEC, including Lyondell's
Amendment No. 3 to its registration statement on Form S-4 (as amended, the "Form
S-4" containing a preliminary joint proxy statement/prospectus regarding the
proposed transaction between Lyondell and Millennium, which was filed on
September 30, 2004.) The definitive proxy statement/prospectus will be sent to
holders of Lyondell's and Millennium's common stock when it becomes available.
INVESTORS AND SECURITY HOLDERS ARE URGED TO READ THE PRELIMINARY JOINT PROXY
STATEMENT/PROSPECTUS ON FILE WITH THE SEC AND ANY OTHER RELEVANT DOCUMENTS FILED
OR THAT WILL BE FILED WITH THE SEC, INCLUDING THE DEFINITIVE JOINT PROXY
STATEMENT/PROSPECTUS THAT WILL BE PART OF THE DEFINITIVE REGISTRATION STATEMENT,
AS THEY BECOME AVAILABLE, BECAUSE THEY CONTAIN, OR WILL CONTAIN, IMPORTANT
INFORMATION. Investors and security holders may obtain a free copy of the
definitive joint proxy statement/prospectus (when it becomes available) and
other documents filed by Lyondell and Millennium with the SEC at the SEC's web
site at www.sec.gov. The definitive joint proxy statement/prospectus (when it
becomes available) and the other documents filed by Millennium may also be
obtained free from Millennium by calling Millennium's Investor Relations
department at 410-229-8113.

The respective executive officers and directors of Lyondell and Millennium and
other persons may be deemed to be participants in the solicitation of proxies in
respect of the proposed transaction. Information regarding Lyondell's executive
officers and directors is available in the proxy statement filed with the SEC by
Lyondell on March 16, 2004 and in the Form S-4, and information regarding
Millennium's directors and its executive officers is available in Millennium's
Amendment No. 1 to its Annual Report on Form 10-K for the year ended December
31, 2003, which was filed with the SEC on April 27, 2004, and in the Form S-4.
Other information regarding the participants in the proxy solicitation and a
description of their direct and indirect interests, by security holdings or
otherwise, will be contained in the definitive joint proxy statement/prospectus
and other relevant materials filed with the SEC, as they become available.