Kronos Worldwide, Inc.                        Contact:   Gregory M. Swalwell
Three Lincoln Centre                                     Vice President, Finance
5430 LBJ Freeway, Suite 1700                             (972) 233-1700
Dallas, TX  75240-2697
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News Release
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FOR IMMEDIATE RELEASE
[LOGO GOES HERE]

                 KRONOS WORLDWIDE REPORTS THIRD QUARTER RESULTS


DALLAS,  TEXAS...November  6,  2006...Kronos  Worldwide,  Inc.  (NYSE:KRO) today
reported net income for the third quarter of 2006 of $11.6 million,  or $.24 per
diluted  share,  compared with net income of $8.0  million,  or $.16 per diluted
share,  in the third quarter of 2005. For the first nine months of 2006,  Kronos
reported net income of $40.2 million,  or $.82 per diluted share,  compared with
net  income of $62.2  million,  or $1.27 per  diluted  share,  in the first nine
months of 2005.

Net sales of $331.6 million in the third quarter of 2006 were $39.5 million,  or
14%,  higher than the third quarter of 2005. Net sales of $981.0 million for the
first nine months of 2006 were $85.3 million, or 10%, higher than the first nine
months of 2005.  Net sales  increased in the third quarter of 2006 primarily due
to higher TiO2 sales volumes and the favorable effect of fluctuations in foreign
currency  exchange rates (which  increased sales by  approximately  $9 million),
partially  offset by lower  average TiO2 selling  prices.  For the  year-to-date
period,  net sales increased due to higher TiO2 sales volumes,  partially offset
by the unfavorable  effect of fluctuations  in foreign  currency  exchange rates
(which decreased sales by approximately $11 million). The Company's average TiO2
selling prices in the first nine months of 2006 approximated  those of the first
nine  months  of 2005.  The table at the end of this  release  shows how each of
these items impacted the overall increase in sales.

The  Company's  TiO2 segment  profit (see  description  of non-GAAP  information
below)  for the third  quarter  of 2006 was $36.2  million  compared  with $39.5
million in the third quarter of 2005,  and was $110.8 million for the first nine
months of 2006 compared  with $146.8  million for the first nine months of 2005.
Segment profit decreased in the third quarter of 2006 as the favorable effect of
higher  sales  volumes was more than offset by the  unfavorable  effect of lower
average  TiO2 selling  prices,  higher  manufacturing  costs,  particularly  raw
materials and energy costs and the effect of  fluctuations  in foreign  currency
exchange rates, which decreased segment profit by approximately $3 million. Full
year segment  profit  decreased as the favorable  effect of higher sales volumes
was more than  offset by the  unfavorable  effect of higher  raw  materials  and
energy costs and the effect of fluctuations in foreign currency  exchange rates,
which decreased segment profit by approximately $18 million.

The  Company's  TiO2 sales volumes were 11% higher in both the third quarter and
first nine months of 2006 as compared to the same  periods in 2005,  with higher
sales volumes in the US,  Europe and export  markets  offsetting  the effects of
lower sales volumes in Canada.  The Company's  TiO2  production  volumes were 3%
higher in both the third  quarter  and first nine  months of 2006 as compared to
the same  periods in 2005,  with  operating  rates at near full  capacity in all
periods.  The Company's  finished goods inventories at September 30, 2006, which
represent less than 2 months of average  sales,  were lower compared to June 30,
2006. The Company's  TiO2 sales and production  volumes in the first nine months
of 2006 were both records for Kronos.







The Company's results for the first nine months of 2005 include a second quarter
securities  transaction gain of $5.4 million ($3.5 million,  or $.07 per diluted
share,  net of  income  taxes)  related  to a gain on the sale of the  company's
passive interest in a Norwegian smelting operation.

As previously  reported,  in April 2006 the Company's  wholly-owned  subsidiary,
Kronos  International,  Inc.  ("KII")  issued an  aggregate  of euro 400 million
principal  amount of new 6.5% Senior  Secured Notes due April 2013. KII used the
proceeds from the issuance of the 6.5% Senior Secured Notes to redeem all of its
8.875% Senior  Secured Notes in May 2006 at 104.437% of the aggregate  principal
amount of euro 375  million.  The Company  recognized  a $22.3  million  pre-tax
charge ($14.8 million,  or $.30 per diluted share, net of income tax benefit) in
the second  quarter of 2006  related to the early  extinguishment  of the 8.875%
Senior Secured Notes.  Other interest income increased for the third quarter and
the first nine  months of 2006,  due  primarily  to the  interest  earned in the
second  quarter from the net proceeds of the new 6.5% Senior Secured Notes which
were held in escrow for  approximately one month until the 8.875% Senior Secured
Notes were redeemed.

The  Company's  effective  income tax rate  varies  significantly  from the U.S.
statutory  federal  income tax rate in 2006 due  primarily to an  aggregate  net
income tax benefit of $9.2 million,  or $.19 per diluted  share,  related to the
net effect of the withdrawal of certain income tax  assessments  previously made
by the Belgian and  Norwegian  tax  authorities,  the  favorable  resolution  of
certain  income  tax  issues  related  to  the  Company's   German  and  Belgian
operations,  the  unfavorable  resolution  of  certain  other  income tax issues
related to the Company's German operations,  an increase in the Company's income
tax  contingency  reserve  principally  related to ongoing  income tax audits in
Germany and the  enactment  of a reduction in the  Canadian  federal  income tax
rate. Such net $9.2 million income tax benefit includes a net income tax benefit
of $12.6  million  recognized  in the first six  months of 2006,  and a net $3.4
million  provision for income  taxes,  or $.07 per diluted  share,  in the third
quarter of the year. The Company's provision for income taxes in 2005 includes a
third quarter aggregate non-cash income tax expense of $5.0 million, or $.10 per
diluted share,  related to the effect of  developments  of certain the Company's
non-U.S. income tax audits.

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.  Although  the Company
believes 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  substantial  risks and
uncertainties  that could  significantly  impact  expected  results,  and actual
future   results  could  differ   materially   from  those   described  in  such
forward-looking  statements.  While it is not  possible to identify all factors,
the Company  continues  to face many risks and  uncertainties.  The factors that
could cause actual  future  results to differ  materially  include,  but are not
limited to, the following:

o    Future supply and demand for the Company's products,
o    The extent of the  dependence  of certain of the  Company's  businesses  on
     certain market sectors,
o    The cyclicality of the Company's businesses,
o    Customer  inventory  levels  (such as the  extent  to which  the  Company's
     customers may, from time to time,  accelerate  purchases of TiO2 in advance
     of  anticipated  price  increases or defer  purchases of TiO2 in advance of
     anticipated price decreases),
o    Changes in raw material and other operating costs (such as energy costs),
o    The possibility of labor disruptions,
o    General global  economic and political  conditions  (such as changes in the
     level of gross  domestic  product in  various  regions of the world and the
     impact of such changes on demand for TiO2),
o    Competitive products and substitute products,
o    Customer and competitor strategies,
o    The impact of pricing and production decisions,
o    Competitive technology positions,
o    The introduction of trade barriers,
o    Fluctuations  in currency  exchange  rates (such as changes in the exchange
     rate between the U.S. dollar and each of the euro, the Norwegian kroner and
     the Canadian dollar),
o    Operating  interruptions  (including,  but not limited to, labor  disputes,
     leaks,  natural  disasters,  fires,  explosions,  unscheduled  or unplanned
     downtime and transportation interruptions),
o    The timing and amounts of insurance recoveries,
o    The ability of the Company to renew or refinance credit facilities,
o    The ultimate  outcome of income tax audits,  tax settlement  initiatives or
     other tax matters,
o    The ultimate ability to utilize income tax attributes, the benefit of which
     has been recognized under the "more-likely-than-not" recognition criteria,
o    Environmental  matters  (such as those  requiring  emission  and  discharge
     standards for existing and new facilities),
o    Government laws and regulations and possible changes therein,
o    The ultimate resolution of pending litigation, and
o    Possible future litigation.

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.  The
Company   disclaims  any  intention  or  obligation  to  update  or  revise  any
forward-looking statement whether as a result of changes in information,  future
events or otherwise.

In an effort to provide  investors  with  additional  information  regarding the
Company's results of operations as determined by accounting principles generally
accepted in the United  States of America  ("GAAP"),  the Company has  disclosed
certain  non-GAAP  information,  which  the  Company  believes  provides  useful
information to investors:

o    The  Company  discloses  segment  profit,  which  is used by the  Company's
     management to assess the performance of the Company's TiO2 operations.  The
     Company believes  disclosure of segment profit provides useful  information
     to investors  because it allows investors to analyze the performance of the
     Company's  TiO2  operations in the same way that the  Company's  management
     assesses  performance.  The Company defines segment profit as income before
     income  taxes,  interest  expense  and  certain  general  corporate  items.
     Corporate items excluded from the  determination  of segment profit include
     corporate  expense and interest  income not  attributable  to the Company's
     TiO2 operations.

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







                             KRONOS WORLDWIDE, INC.
                   CONDENSED CONSOLIDATED STATEMENTS OF INCOME
               (In millions, except per share and metric ton data)
                                   (Unaudited)




                                                                  Three months ended         Nine months ended
                                                                     September 30,             September 30,
                                                               -----------------------------------------------------
                                                               -----------------------------------------------------
                                                                   2005        2006          2005         2006
                                                               -----------------------------------------------------
                                                               -----------------------------------------------------

                                                                                            
Net sales                                                       $   292.1    $   331.6    $   895.7     $   981.0
Cost of sales                                                       216.2        256.2        640.9         748.8
                                                                ---------    ---------    ---------     ---------

    Gross margin                                                     75.9         75.4        254.8         232.2

Selling, general and administrative expense                          36.9         39.4        112.0         118.5
Other operating income (expense):
  Currency transaction gains (losses), net                             .2          -            3.5          (2.9)
  Disposition of property & equipment                                 (.3)         (.6)         (.4)         (1.7)
  Other income                                                         .3           .2           .4            .2
                                                                     (1.0)        (1.3)        (3.9)         (3.9)
                                                                ---------    ---------    ---------     ---------

    Income from operations                                           38.2         34.3        142.4         105.4

Other income (expense):
  Trade interest income                                                .3           .6           .5           1.5
  Other interest income                                                .1           .2           .7           1.2
  Securities transaction gain                                         -            -            5.4           -
  Loss on prepayment of debt                                          -            -            -           (22.3)
  Interest expense                                                  (10.6)        (9.7)       (34.0)        (33.5)
                                                                ---------    ---------    ---------     ---------

    Income before income taxes                                       28.0         25.4        115.0          52.3

Provision for income taxes                                           20.0         13.8         52.8          12.1
                                                                ---------    ---------    ---------     ---------

    Net income                                                  $     8.0    $    11.6    $    62.2     $    40.2
                                                                =========    =========    =========     =========

Basic and diluted net income per share                          $     .16    $     .24    $    1.27     $    .82
                                                                =========    =========    =========     =========


Basic and diluted weighted-average
shares used in the calculation of net
income per share                                                     48.9         48.9         48.9          48.9

TiO2 data - metric tons in thousands:
  Sales volumes                                                       119          132          356           396
  Production volumes                                                  122          126          371           383









                             KRONOS WORLDWIDE, INC.

                       RECONCILIATION OF SEGMENT PROFIT TO
                             INCOME FROM OPERATIONS
                                  (In millions)
                                   (Unaudited)




                                                                  Three months ended         Nine months ended
                                                                     September 30,             September 30,
                                                               -----------------------------------------------------
                                                               -----------------------------------------------------
                                                                   2005        2006          2005         2006
                                                               -----------------------------------------------------
                                                               -----------------------------------------------------

                                                                                            
Segment profit                                                  $    39.5    $    36.2     $  146.8     $   110.8
Adjustments:
   Trade interest income                                              (.3)         (.6)         (.5)         (1.5)
   Corporate expense                                                 (1.0)        (1.3)        (3.9)         (3.9)
                                                                ---------    ---------     --------     ---------

Income from operations                                          $    38.2    $    34.3     $  142.4     $   105.4
                                                                =========    =========     ========     =========




                      IMPACT OF PERCENTAGE CHANGE IN SALES
                                   (Unaudited)




                                                                  Three months ended           Nine months ended
                                                                     September 30,               September 30,
                                                                    2006 vs. 2005                2006 vs. 2005
                                                                   ----------------            ----------------

                                                                                               
Percent change in sales:
    TiO2 product pricing                                                     -1%                         -%
    TiO2 sales volume                                                       +11%                       +11%
    TiO2 product mix                                                         +1%                         -%
    Changes in foreign currency exchange rates                               +3%                        -1%
                                                                          ------                      -----

Total                                                                      + 14%                      + 10%
                                                                          ======                      =====