KRONOS WORLDWIDE, INC.                Contact: Gregory M. Swalwell
Three Lincoln Centre                           Vice President, Finance and Chief
5430 LBJ Freeway, Suite 1700                   Financial Officer
Dallas, Texas  75240-2697                      (972) 233-1700


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                                  News Release
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 KRONOS WORLDWIDE, INC. ANNOUNCES COMMENCEMENT OF EXCHANGE OFFER FOR (euro)400
  MILLION OF SENIOR SECURED NOTES OF ITS KRONOS INTERNATIONAL, INC. SUBSIDIARY



DALLAS, TX - June 26, 2006 - Kronos Worldwide,  Inc. (NYSE: KRO) today announced
that its wholly-owned  subsidiary,  Kronos  International,  Inc.,  commenced its
offer to holders of (euro)400 million  aggregate  principal amount of its 6 1/2%
Senior  Secured  Notes due 2013 issued on April 11, 2006 to exchange  such notes
for a like  principal  amount  of notes  that  have  been  registered  under the
Securities Act of 1933, as amended.  Kronos International,  Inc. conducts Kronos
Worldwide's titanium dioxide pigment operations in Europe.

The exchange  offer is scheduled to expire on July 24, 2006, at 12:00  midnight,
New York City time, unless further extended by Kronos International. The Bank of
New York in London has been  appointed  as the  exchange  agent for the exchange
offer.  Requests for  assistance or documents  should be directed to the Bank of
New York at 011 44(207) 964 6513 or 011 44(207) 964 7235.

The statements in this release relating to matters that are not historical facts
are  forward-looking   statements  that  represent   management's   beliefs  and
assumptions based on currently available information. Forward-looking statements
can be identified by the use of words such as "will," "anticipates,"  "expects,"
or comparable  terminology or by discussions of strategy or trends.  Although we
believe that the expectations  reflected in such forward-looking  statements are
reasonable,  it cannot give any assurances that these expectations will prove to
be correct.  Such  statements by their nature  involve risks and  uncertainties,
including,  but not  limited  to,  global  economic  and  political  conditions,
financial  market  conditions,  changes  in  foreign  currency  exchange  rates,
operating interruptions  (including,  but not limited to, labor disputes, leaks,
fires, explosions,  unscheduled downtime,  transportation interruptions, war and
terrorist  activities),  and  other  risks  and  uncertainties  detailed  in our
Securities and Exchange  Commission  filings.  Should one or more of these risks
materialize (or the  consequences of such a development  worsen),  or should the
underlying  assumptions prove incorrect,  actual results could differ materially
from those  forecasted  or expected.  We disclaim any intention or obligation to
update  publicly  or  revise  such  statements,  whether  as  a  result  of  new
information, future events or otherwise.

Kronos  Worldwide,  Inc. is a major  international  producer of titanium dioxide
pigments.

This news release does not  constitute an offer to sell or the  solicitation  of
any offer to buy any securities.