SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 10-K

         ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
       EXCHANGE ACT OF 1934 - For the fiscal year ended December 31, 2005
                                                        -----------------

         Commission file number 1-640
                                -----

                               NL INDUSTRIES, INC.
- --------------------------------------------------------------------------------
             (Exact name of Registrant as specified in its charter)

           New Jersey                                           13-5267260
- -------------------------------                            -------------------
(State or other jurisdiction of                              (IRS Employer
 incorporation or organization)                            Identification No.)

5430 LBJ Freeway, Suite 1700, Dallas, Texas                    75240-2697
- -------------------------------------------                -------------------
  (Address of principal executive offices)                     (Zip Code)

Registrant's telephone number, including area code:          (972) 233-1700
                                                           -------------------

Securities registered pursuant to Section 12(b) of the Act:

                                                  Name of each exchange on
     Title of each class                               which registered
- ---------------------------                     -----------------------------
        Common stock                               New York Stock Exchange
      ($.125 par value)

Securities registered pursuant to Section 12(g) of the Act:

                  None.

Indicate by check mark:

     If the Registrant is a well-known  seasoned issuer,  as defined in Rule 405
     of the Securities Act. Yes    No X
                               ---   ---

     If the Registrant is not required to file reports pursuant to Section 13 or
     Section 15(d) of the Act. Yes    No X
                                  ---   ---

     Whether the  Registrant  (1) has filed all reports  required to be filed by
     Section  13 or 15(d) of the  Securities  Exchange  Act of 1934  during  the
     preceding  12 months and (2) has been  subject to such filing  requirements
     for the past 90 days. Yes X  No
                              ---   ---

     If disclosure of delinquent  filers  pursuant to Item 405 of Regulation S-K
     is not  contained  herein,  and  will  not be  contained,  to the  best  of
     Registrant's  knowledge,  in  definitive  proxy or  information  statements
     incorporated by reference in Part III of this Form 10-K or any amendment to
     this Form 10-K. Yes    No X
                        ---   ---

     Whether the Registrant is a large  accelerated  filer, an accelerated filer
     or a  non-accelerated  filer (as  defined in Rule 12b-2 of the Act).  Large
     accelerated filer    Accelerated filer X  Non-accelerated filer
                      ---                  ---                      ---

     Whether the  Registrant is a shell company (as defined in Rule 12b-2 of the
     Act). Yes    No X
              ---   ---

The  aggregate  market  value of the 7.9 million  shares of voting stock held by
nonaffiliates of NL Industries,  Inc. as of June 30, 2005 (the last business day
of the Registrant's most recently-completed  second fiscal quarter) approximated
$121 million.

As of February 28, 2006, 48,563,034 shares of the Registrant's common stock were
outstanding.

                       Documents incorporated by reference

The  information  required by Part III is  incorporated  by  reference  from the
Registrant's definitive proxy statement to be filed with the Commission pursuant
to  Regulation  14A not later  than 120 days  after the end of the  fiscal  year
covered by this report.


                                     PART I


ITEM 1.  BUSINESS

     NL Industries,  Inc. (NYSE: NL),  organized as a New Jersey  corporation in
1891,  has  operations  through   majority-owned   subsidiaries  and  less  than
majority-owned  affiliates in the component  products and chemicals  industries.
Information   regarding  the  Company's  business  segments  and  the  companies
conducting such businesses is set forth below.  Business and geographic  segment
financial  information  is  included  in  Note 3 to the  Consolidated  Financial
Statements,  which information is incorporated herein by reference.  The Company
is based in Dallas, Texas.


                               
Component Products                CompX is a leading  manufacturer  of  precision  ball  bearing
CompX International Inc.- 70%     slides,  security  products  and  ergonomic  computer  support
owned at December 31, 2005        systems   used   in   office    furniture,    computer-related
                                  applications  and a  variety  of other  industries.  CompX has
                                  production facilities in North America and Asia.

Chemicals                         Kronos  is  a  leading  global   producer  and  marketer  of
 Kronos Worldwide, Inc. - 36%     value-added  titanium dioxide pigments  ("TiO2"),  which are
  owned at December 31, 2005      used for imparting  whiteness,  brightness  and opacity to a
                                  diverse range of customer  applications and end-use markets,
                                  including  coatings,  plastics,  paper and other  industrial
                                  and   consumer   "quality-of-life"   products.   Kronos  has
                                  production  facilities  in Europe and North  America.  Sales
                                  of TiO2 represent  about 90% of Kronos' total sales in 2005,
                                  with  sales of other  products  that  are  complementary  to
                                  Kronos' TiO2 business comprising the remainder.


     At December 31, 2005, (i) Valhi (NYSE: VHI) held  approximately 83% of NL's
outstanding  common stock,  (ii) Contran  Corporation and its subsidiaries  held
approximately  92% of Valhi's  outstanding  common  stock,  (iii)  Valhi held an
additional  57% of Kronos'  outstanding  common stock and (iv)  Titanium  Metals
Corporation ("TIMET") (NYSE:TIE),  an affiliate of Valhi, held an additional 18%
of CompX's outstanding common stock.  Substantially all of Contran's outstanding
voting stock is held by trusts  established for the benefit of certain  children
and grandchildren of Harold C. Simmons, of which Mr. Simmons is sole trustee, or
is held by Mr.  Simmons  or persons or other  entities  related to Mr.  Simmons.
Consequently,  Mr. Simmons may be deemed to control such companies.  See Notes 1
and 17 to the Consolidated Financial Statements.

     On September 24, 2004, the Company  completed the acquisition of 10,374,000
shares of CompX common stock, representing  approximately 68% of the outstanding
shares of CompX common stock.  The CompX common stock was  purchased  from Valhi
and Valcor,  a wholly-owned  subsidiary of Valhi,  at a purchase price of $16.25
per share, or an aggregate of approximately  $168.6 million.  The purchase price
was paid by NL's  transfer  to Valhi and  Valcor of $168.6  million of NL's $200
million long-term note receivable from Kronos. The acquisition was approved by a
special committee of NL's board of directors comprised of directors who were not
affiliated with Valhi, and such special  committee  retained their own legal and
financial  advisors  who rendered an opinion to the special  committee  that the
purchase price was fair, from a financial point of view, to NL. NL's acquisition
was accounted for under accounting  principles  generally accepted in the United
States of America  ("GAAP") as a transfer  of net assets  among  entities  under
common control,  and accordingly  resulted in a change in reporting entity.  The
Company has  retroactively  restated its  consolidated  financial  statements to
reflect the consolidation of CompX for all periods presented.  See Note 2 to the
Consolidated Financial Statements.

     Prior to July 2004,  the Company  owned a majority  of Kronos'  outstanding
common stock, and the Company accounted for its ownership  interest in Kronos as
a  consolidated  subsidiary.  Following the Company's  July 2004 dividend in the
form of  shares of Kronos  common  stock  distributed  to NL  shareholders,  the
Company's  ownership  of Kronos  was  reduced  to less  than 50%.  Consequently,
effective  July 1, 2004 the  Company  ceased to  consolidate  Kronos'  financial
position,  results of  operations  and cash  flows,  and the  Company  commenced
accounting  for its  interest  in  Kronos  by the  equity  method.  The  Company
continues to report Kronos as a consolidated  subsidiary  through June 30, 2004,
including the  consolidation of Kronos' results of operations and cash flows for
the  first  two  quarters  of  2004.  See Note 2 to the  Consolidated  Financial
Statements.

     CompX and  Kronos  each  file  periodic  reports  with the  Securities  and
Exchange  Commission  ("SEC").  The  information set forth below with respect to
such companies has been derived from such reports.

     As  provided  by the  safe  harbor  provisions  of the  Private  Securities
Litigation  Reform Act of 1995, the Company cautions that the statements in this
Annual  Report on Form 10-K relating to matters that are not  historical  facts,
including,  but not limited to,  statements  found in this Item 1 -  "Business,"
Item 1A - "Risk Factors," Item 3 - "Legal  Proceedings,"  Item 7 - "Management's
Discussion and Analysis of Financial  Condition and Results of  Operations"  and
Item 7A -  "Quantitative  and  Qualitative  Disclosures  About Market Risk," 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 "believes,"  "intends,"  "may," "should,"
"could," "anticipates,"  "expects" or comparable terminology,  or by discussions
of strategies  or trends.  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.  Among the factors that could cause actual future results to
differ  materially from those described  herein are the risks and  uncertainties
discussed  in this Annual  Report and those  described  from time to time in the
Company's  other  filings  with  the SEC  including,  but 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  (such  as  Kronos'  TiO2
     operations),
o    Customer  inventory  levels (such as the extent to which Kronos'  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 and steel
     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 and component products),
o    Demand for office furniture,
o    Competitive   products  and  substitute   products,   including   increased
     competition from low-cost manufacturing sources (such as China),
o    Customer and competitor strategies,
o    The impact of pricing and production decisions,
o    Competitive technology positions,
o    Service industry employment levels,
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,
     the New Taiwan dollar 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 introduction of trade barriers,
o    Potential difficulties in integrating completed or future acquisitions,
o    Decisions to sell  operating  assets  other than in the ordinary  course of
     business,
o    Uncertainties associated with new product development,
o    The  ultimate  ability to utilize  income tax  attributes,  the benefits of
     which have been  recognized  under the  "more-likely-than-not"  recognition
     criteria,
o    Environmental matters (such as those requiring compliance with emission and
     discharge  standards for existing and new facilities as well as adjustments
     to environmental  remediation at sites related to former  operations of the
     Company),
o    Government  laws and  regulations  and possible  changes  therein  (such as
     changes in government regulations which might impose various obligations on
     present and former  manufacturers  of lead  pigment and  lead-based  paint,
     including NL, with respect to asserted health concerns  associated with the
     use of such products),
o    The ultimate  resolution of pending  litigation  (such as NL's lead pigment
     litigation and litigation surrounding environmental matters), 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  currently  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.

COMPONENT PRODUCTS - COMPX INTERNATIONAL INC.

     General.  CompX is a leading manufacturer of precision ball bearing slides,
security  products  (cabinet locks and other locking  mechanisms)  and ergonomic
computer support systems used in office furniture, computer-related applications
and a variety of other industries. CompX's products are principally designed for
use in medium- to  high-end  product  applications,  where  design,  quality and
durability  are critical to CompX's  customers.  CompX believes that it is among
the world's  largest  producers  of  precision  ball  bearing  slides,  security
products and ergonomic computer support systems. In 2005, precision ball bearing
slides,  security products and ergonomic  computer support systems accounted for
approximately 42%, 43% and 15%, respectively, of net sales related to continuing
operations, respectively.

     In January 2005,  CompX  completed the disposition of all of the net assets
of its Thomas Regout  operations  conducted in the Netherlands.  Thomas Regout's
results of operations are classified as discontinued operations in the Company's
Consolidated  Financial  Statements.  In August 2005, the Company  completed the
acquisition of a component product business for aggregate cash  consideration of
$7.3  million,  net of cash  acquired.  See  Notes 2 and 24 to the  Consolidated
Financial Statements.

     Products,  product  design and  development.  Precision ball bearing slides
manufactured to stringent  industry  standards are used in such  applications as
office  furniture,  computer-related  equipment,  file  cabinets,  desk drawers,
automated teller machines,  tool storage cabinets and imaging  equipment.  These
products include CompX's patented  Integrated Slide Lock in which a file cabinet
manufacturer  can reduce the possibility of multiple drawers being opened at the
same  time,  the  adjustable  patented  Ball  Lock  which  reduces  the  risk of
heavily-filled  drawers, such as auto mechanic tool boxes, from opening while in
movement,  and the Self-Closing  Slide, which is designed to assist in closing a
drawer and is used in applications such as bottom mount freezers.

     Security  products  are used in  various  applications  including  ignition
systems,  office  furniture,   vending  and  gaming  machines,  parking  meters,
electrical circuit panels, storage compartments, security devices for laptop and
desktop  computers as well as mechanical and  electronic  locks for the toolbox,
medical and other industries. These products include CompX's KeSet high security
system,  which has the  ability to change  the keying on a single  lock 64 times
without  removing the lock from its enclosure  and its  patented,  high-security
TuBar locking system. CompX believes it is a North American market leader in the
manufacture and sale of cabinet locks and other locking mechanisms.

     Ergonomic computer support systems include  articulating  computer keyboard
support  arms  (designed  to attach to desks in the  workplace  and home  office
environments  to  alleviate  possible  strains  and stress and  maximize  usable
workspace),  CPU storage  devices  which  minimize  adverse  effects of dust and
moisture and a number of complementary  accessories,  including  ergonomic wrist
rest aids,  mouse pad supports and flat screen  computer  monitor  support arms.
These products include CompX's Leverlock keyboard arm, which is designed to make
the adjustment of an ergonomic  keyboard arm easier.  In addition,  CompX offers
its  engineering  and design  capabilities  for the design  and  manufacture  of
products on a proprietary basis for key customers.

     CompX's  precision  ball  bearing  slides and  ergonomic  computer  support
systems are sold under the CompX  Precision  Slides,  CompX  Waterloo,  Waterloo
Furniture Components, CompX DurISLide, and CompX Dynaslide brand names. Security
products are sold under the CompX Security Products, National Cabinet Lock, Fort
Lock, Timberline Lock, Chicago Lock, Stock Locks, KeSet, eLock, ACE II and TuBar
brand names.  Ergonomic  products are sold under the CompX  ErgonomX brand name.
CompX believes that its brand names are well recognized in the industry.

     Sales,  marketing  and  distribution.  CompX sells  components  to original
equipment  manufacturers  ("OEMs") and to distributors through a dedicated sales
force. The majority of CompX's sales are to OEMs,  while the balance  represents
standardized  products sold through  distribution  channels.  Sales to large OEM
customers  are made  through the efforts of  factory-based  sales and  marketing
professionals  and  engineers  working in concert  with  field  salespeople  and
independent manufacturers'  representatives.  Manufacturers' representatives are
selected  based on special  skills in  certain  markets  or  relationships  with
current or potential customers.

     A significant portion of CompX's sales are made through distributors. CompX
has  a  significant  market  share  of  cabinet  lock  sales  to  the  locksmith
distribution  channel.  CompX  supports  its  distributor  sales  with a line of
standardized  products used by the largest  segments of the  marketplace.  These
products are packaged and  merchandised  for easy  availability  and handling by
distributors  and the  end  users.  Based  on  CompX's  successful  STOCK  LOCKS
inventory program,  similar programs have been implemented for distributor sales
of ergonomic  computer support systems and to some extent precision ball bearing
slides.  CompX also operates a small  tractor/trailer  fleet associated with its
Canadian  facilities  to provide an  industry-unique  service  response to major
customers for those Canadian manufactured products.

     CompX does not believe it is  dependent  upon one or a few  customers,  the
loss of which would have a material  adverse effect on its operations.  In 2005,
the ten largest  customers  accounted for about 43% of component  products sales
(2004 - 43%; 2003 - 44%). In 2004 and 2005,  one customer  accounted for 11% and
10%, respectively,  of CompX's sales. No single customer accounted for more than
10% of CompX's sales in 2003.

     Manufacturing  and  operations.  At December 31, 2005,  CompX  operated six
manufacturing  facilities in North America related to its continuing  operations
(two in  Illinois  and one in each of  Canada,  South  Carolina,  Wisconsin  and
Michigan) and two in Taiwan.  Precision ball bearing slides are  manufactured in
the facilities  located in Canada,  Michigan and Taiwan.  Security  products are
manufactured in the facilities located in South Carolina and Illinois. Ergonomic
products are  manufactured  in the facility  located in Canada.  Other component
products  are  manufactured  at the  Wisconsin  facility  acquired in 2005.  The
Company  owns all of these  facilities  except for one of the Taiwan  facilities
which is leased.  CompX also leases a distribution  center in California.  CompX
believes that all of its facilities are well  maintained  and  satisfactory  for
their intended purposes.

     Raw  materials.  Coiled  steel  is  the  major  raw  material  used  in the
manufacture  of precision  ball bearing  slides and ergonomic  computer  support
systems.  Plastic  resins for  injection  molded  plastics  are also an integral
material for ergonomic computer support systems.  Purchased  components and zinc
are the principal raw materials used in the  manufacture  of security  products.
These raw  materials  are  purchased  from  several  suppliers  and are  readily
available from numerous sources.

     CompX  occasionally  enters  into raw  material  purchase  arrangements  to
mitigate the short-term impact of future increases in raw material costs.  While
these  arrangements  do not commit CompX to a minimum volume of purchases,  they
generally  provide for stated unit prices  based upon  achievement  of specified
volume  purchase  levels.  This allows CompX to stabilize raw material  purchase
prices,  provided the specified  minimum  monthly  purchase  quantities are met.
Materials  purchased  outside of these  arrangements  are  sometimes  subject to
unanticipated and sudden price increases.  Due to the competitive  nature of the
markets  served by CompX's  products,  it is often  difficult  to  recover  such
increases in raw material costs through  increased product selling prices or raw
material surcharges.  Consequently, overall operating margins can be affected by
such raw material cost pressures.

     Competition.   The   markets  in  which  CompX   participates   are  highly
competitive.  CompX competes primarily on the basis of product design, including
ergonomic and aesthetic factors, product quality and durability,  price, on-time
delivery, service and technical support. CompX focuses its efforts on the middle
and high-end segments of the market, where product design,  quality,  durability
and service are placed at a premium.

     CompX competes in the precision ball bearing slide market  primarily on the
basis of product quality and price with two large  manufacturers and a number of
smaller  domestic  and foreign  manufacturers.  CompX  competes in the  security
products  market  with a  variety  of  relatively  small  domestic  and  foreign
competitors.  CompX  competes in the ergonomic  computer  support  system market
primarily  on the basis of product  quality,  features  and price with one major
producer and a number of smaller domestic unique manufacturers, and primarily on
the basis of price with a number of smaller domestic and foreign  manufacturers.
Although  CompX  believes that it has been able to compete  successfully  in its
markets to date, price competition from foreign-sourced products has intensified
in the current  economic  market.  There can be no assurance  that CompX will be
able to continue to successfully  compete in all of its existing  markets in the
future.

     Patents and  trademarks.  CompX  holds a number of patents  relating to its
component  products,  certain of which are believed to be important to CompX and
its continuing  business  activity.  CompX's patents generally have a term of 20
years,  and have  remaining  terms ranging from less than 3 years to 18 years at
December 31, 2005.  CompX's major  trademarks and brand names  including  CompX,
CompX Security Products, CompX Waterloo, CompX ErgonomX,  National Cabinet Lock,
KeSet,  Fort Lock,  Timberline Lock,  Chicago Lock, ACE II, TuBar,  STOCK LOCKS,
ShipFast,  Waterloo  Furniture  Components  Limited,  CompX  DurISLide and CompX
Dynaslide,  which  are  protected  by  registration  in the  United  States  and
elsewhere  with  respect to the products  CompX  manufactures  and sells.  CompX
believes such trademarks are well recognized in the component products industry.

     Regulatory and  environmental  matters.  CompX's  operations are subject to
federal,  state,  local and foreign  laws and  regulations  relating to the use,
storage, handling, generation,  transportation,  treatment, emission, discharge,
disposal  and  remediation  of, and  exposure to,  hazardous  and  non-hazardous
substances,  materials  and  wastes.  CompX's  operations  are also  subject  to
federal, state, local and foreign laws and regulations relating to worker health
and safety.  CompX believes that it is in substantial  compliance  with all such
laws and  regulations.  The costs of maintaining  compliance  with such laws and
regulations  have not  significantly  impacted  CompX to date,  and CompX has no
significant planned costs or expenses relating to such matters.  There can be no
assurance,  however,  that compliance with future laws and regulations  will not
require  CompX  to  incur  significant  additional  expenditures,  or that  such
additional   costs  would  not  have  a  material   adverse  effect  on  CompX's
consolidated financial condition, results of operations or liquidity.

     Employees.  As of December 31, 2005,  CompX  employed  approximately  1,230
persons,  including 750 in the United States,  330 in Canada, and 150 in Taiwan.
Approximately  70% of CompX's  employees  in Canada are  represented  by a labor
union covered by a collective  bargaining  agreement  which  provides for annual
wage increases  from 1% to 2.5% over the life of the contract.  A new collective
bargaining  agreement was ratified in December 2005 and expires in January 2009.
Wage increases for these Canadian employees  historically have also been in line
with  overall  inflation  indices.   CompX  believes  its  labor  relations  are
satisfactory.

CHEMICALS - KRONOS WORLDWIDE, INC.

     General.  Kronos is a leading  global  producer and marketer of value-added
TiO2, an inorganic chemical used for imparting whiteness, brightness and opacity
to a diverse  range of  customer  applications  and end-use  markets,  including
paints, paper,  plastics,  paper, ink, textiles,  ceramics,  food and cosmetics.
TiO2 is considered to be a "quality-of-life" product with demand affected by the
gross  domestic  product in various  regions of the  world.  TiO2,  the  largest
commercially  used  whitening  pigment  by  volume,  derives  its value from its
whitening  properties and  opacifying  ability  (commonly  referred to as hiding
power).  As a result of TiO2's high refractive index rating, it can provide more
hiding power than any other  commercially  produced white pigment.  In addition,
TiO2  demonstrates   excellent  resistance  to  chemical  attack,  good  thermal
stability  and  resistance  to  ultraviolet  degradation.  TiO2 is  supplied  to
customers in either a powder or slurry form.

     By volume,  approximately  one-half  of Kronos'  2005  sales  volumes  were
attributable  to markets in Europe with  approximately  38% to North America and
the balance to export markets. Kronos believes it is the second-largest producer
of TiO2 in Europe, with an estimated 20% share of European TiO2 sales volumes in
2005 and has an estimated 15% share of North American TiO2 sales volumes.

     Per capita  consumption of TiO2 in the United States and Western Europe far
exceeds  consumption  in other areas of the world and these regions are expected
to continue to be the largest  consumers of TiO2.  Significant  markets for TiO2
consumption  could  emerge in  Eastern  Europe,  the Far East or  China,  as the
economies in these regions continue to develop to the point that quality-of-life
products, including TiO2, experience greater demand.

     Products and operations.  TiO2 is produced in two crystalline forms: rutile
and  anatase.  Both the  chloride and sulfate  production  processes  (discussed
below)  produce  rutile  TiO2.  Chloride  process  rutile is  preferred  for the
majority of customer applications. From a technical standpoint, chloride process
rutile has a bluer  undertone and higher  durability than sulfate process rutile
TiO2.  Although many end-use  applications can use either form of TiO2, chloride
process rutile TiO2 is the preferred form for use in coatings and plastics,  the
two largest end-use  markets.  Anatase TiO2,  which is produced only through the
sulfate  production  process,  represents  a much smaller  percentage  of annual
global TiO2  production  and is preferred for use in selected  paper,  ceramics,
rubber tires, man-made fibers, food and cosmetics.

     Kronos  believes  that  there  are  no  effective   substitutes  for  TiO2.
Extenders, such as kaolin clays, calcium carbonate and polymeric opacifiers, are
used in a number of end-use  markets;  however the opacity in these  products is
not able to  duplicate  the  performance  characteristics  of TiO2,  and  Kronos
believes these products are unlikely to replace TiO2.

     Kronos  currently  produces over 40 different  TiO2 grades,  sold under the
Kronos  trademark,  which  provide a variety of  performance  properties to meet
customers' specific  requirements.  Kronos' major customers include domestic and
international paint, plastics and paper manufacturers.

     Kronos and its distributors and agents sell and provide technical  services
for its products to over 4,000 customers in over 100 countries with the majority
of sales in Europe and North  America.  TiO2 is distributed by rail and truck in
either  dry or slurry  form and by ocean  carrier  in dry form.  Kronos  and its
predecessors  have  produced and marketed  TiO2 in North  America and Europe for
over 80 years. Kronos believes that it has developed  considerable expertise and
efficiency  in the  manufacture,  sale,  shipment and service of its products in
domestic and international markets.

     Sales of TiO2  represented  about 90% of Kronos' total sales in 2005. Sales
of other products,  complementary to Kronos' TiO2 business, are comprised of the
following:

o    Kronos owns an ilmenite mine in Norway operated  pursuant to a governmental
     concession with an unlimited term. Ilmenite is a raw material used directly
     as a  feedstock  by some  sulfate-process  TiO2  plants,  including  all of
     Kronos' European  sulfate-process  plants.  The mine has estimated reserves
     that  are  expected  to  last  at  least  50  years.   Ilmenite   sales  to
     third-parties  represented  approximately  5% of Kronos'  consolidated  net
     sales in 2005.
o    Kronos manufactures and sells iron-based  chemicals,  which are by-products
     and processed  by-products of the TiO2 pigment  production  process.  These
     co-product chemicals are marketed through Kronos' Ecochem division, and are
     used  primarily  as  treatment  and  conditioning   agents  for  industrial
     effluents and municipal  wastewater as well as in the  manufacture  of iron
     pigments,  cement and agricultural  products.  Sales of iron based chemical
     products were about 4% of chemical sales in 2005.
o    Kronos  manufactures and sells certain titanium chemical products (titanium
     oxychloride and titanyl sulfate),  which are side-stream  products from the
     production of TiO2. Titanium oxychloride is used in specialty  applications
     in the formulation of pearlescent  pigments,  production of  electroceramic
     capacitors for cell phones and other  electronic  devices.  Titanyl sulfate
     products  are  used  primarily  in  pearlescent  pigments.  Sales  of these
     products were about 1% of chemical sales in 2005.

     Manufacturing  process,  properties and raw materials.  Kronos manufactures
TiO2 using both the chloride process and the sulfate process.  Approximately 73%
of Kronos' current  production  capacity is based on the chloride  process.  The
chloride  process is a continuous  process in which  chlorine is used to extract
rutile TiO2. The chloride process typically has lower  manufacturing  costs than
the sulfate  process due to higher yield and  production of less waste and lower
energy  requirements  and labor costs.  Because much of the chlorine is recycled
and feedstock  bearing a higher titanium  content is used, the chloride  process
produces  less waste than the sulfate  process.  The sulfate  process is a batch
chemical process that uses sulfuric acid to extract TiO2. Sulfate technology can
produce either anatase or rutile pigment.  Once an intermediate TiO2 pigment has
been produced by either the chloride or sulfate  process,  it is "finished" into
products  with  specific  performance  characteristics  for  particular  end-use
applications  through  proprietary  processes involving various chemical surface
treatments and intensive micronizing (milling). Due to environmental factors and
customer  considerations,  the proportion of TiO2 industry sales  represented by
chloride-process  pigments has increased  relative to  sulfate-process  pigments
and, in 2005,  chloride-process  production facilities represented approximately
64% of industry capacity.

     During 2005, Kronos operated four TiO2 facilities in Europe (one in each of
Leverkusen, Germany, Nordenham, Germany, Langerbrugge,  Belgium and Fredrikstad,
Norway). In North America,  Kronos operates a TiO2 facility in Varennes,  Quebec
and,  through a  manufacturing  joint venture  discussed  below,  has a one-half
interest in a TiO2 plant in Lake Charles,  Louisiana. TiO2 is produced using the
chloride  process at the  Leverkusen,  Langerbrugge,  Varennes  and Lake Charles
facilities,  while TiO2 is produced using the sulfate  process at the Nordenham,
Leverkusen,  Fredrikstad  and Varennes  facilities.  Kronos owns an ilmenite ore
mine in Norway operated pursuant to a governmental  concession with an unlimited
term,  and Kronos  also owns a TiO2  slurry  facility  in  Louisiana  and leases
various  corporate  and  administrative  offices in the U.S.  and various  sales
offices  in the  U.S.  and  Europe.  Kronos'  co-products  are  produced  at its
Norwegian,  Belgian  and  German  facilities,  and its  titanium  chemicals  are
produced at its Belgian  and  Canadian  facilities.  The  Company  believes  the
transportation  access to its facilities,  which is generally  maintained by the
applicable local government, is adequate for the Company's purposes.

     All of Kronos' principal  production  facilities are owned,  except for the
land under the Leverkusen and Fredrikstad  facilities.  The Fredrikstad plant is
located on public land and is leased  until  2013,  with an option to extend the
lease for an  additional 50 years.  Kronos leases the land under its  Leverkusen
TiO2 production facility pursuant to a lease with Bayer AG that expires in 2050.
The  Leverkusen  facility,  which  is  owned  by  Kronos  and  which  represents
approximately  one-third of Kronos' current TiO2 production capacity, is located
within  Bayer's  extensive  manufacturing  complex.  Rent  for such  land  lease
associated with the Leverkusen facility is periodically established by agreement
with  Bayer  for  periods  of at least  two  years at a time.  Under a  separate
supplies  and  services  agreement  expiring in 2011,  Bayer  provides  some raw
materials,  including chlorine,  auxiliary and operating materials and utilities
and services necessary to operate the Leverkusen facility.

     Kronos  produced  a company  record  492,000  metric  tons of TiO2 in 2005,
compared to the prior records of 484,000  metric tons in 2004 and 476,000 metric
tons in 2003. Such production amounts include the Company's one-half interest in
the joint  venture  owned  Louisiana  plant  discussed  below.  Kronos'  average
production capacity  utilization rates were near full capacity in 2003, 2004 and
2005.  Kronos'  production  capacity has increased by approximately 30% over the
past ten years due to  debottlenecking  programs,  with  only  moderate  capital
expenditures. Kronos believes its annual attainable production capacity for 2006
is  approximately  510,000  metric tons,  with some slight  additional  capacity
available in 2007 through Kronos' continued debottlenecking efforts.

     The primary raw materials used in the TiO2 chloride  production process are
titanium-containing   feedstock,  chlorine  and  coke.  Chlorine  and  coke  are
available from a number of suppliers. Titanium-containing feedstock suitable for
use in the chloride process is available from a limited but increasing number of
suppliers  around the world,  principally  in Australia,  South Africa,  Canada,
India and the United States. Kronos purchased  approximately 430,000 metric tons
of chloride  feedstock  in 2005,  of which the vast  majority  was slag.  Kronos
purchased chloride process grade slag in 2005 from a subsidiary of Rio Tinto plc
UK - Richards  Bay Iron and  Titanium  Limited  South  Africa  under a long-term
supply contract that expires at the end of 2007. Natural rutile ore is purchased
primarily from Iluka  Resources,  Limited  (Australia)  under a long-term supply
contract  that  expires at the end of 2009.  Kronos does not expect to encounter
difficulties  obtaining long-term  extensions to existing supply contracts prior
to  the  expiration  of the  contracts.  Raw  materials  purchased  under  these
contracts and extensions  thereof are expected to meet Kronos'  chloride process
feedstock requirements over the next several years.

     The primary raw materials used in the TiO2 sulfate  production  process are
titanium-containing  feedstock,  derived  primarily  from  rock and  beach  sand
ilmenite,  and  sulfuric  acid.  Sulfuric  acid is  available  from a number  of
suppliers. Titanium-containing feedstock suitable for use in the sulfate process
is available from a limited number of suppliers around the world. Currently, the
principal  active sources are located in Norway,  Canada,  Australia,  India and
South  Africa.   As  one  of  the  few   vertically   integrated   producers  of
sulfate-process  pigments,  Kronos  owns and  operates a rock  ilmenite  mine in
Norway, which provided all of Kronos' feedstock for its European sulfate-process
pigment plants in 2005.  Kronos  produced  approximately  816,000 metric tons of
ilmenite  in  2005,  of  which  approximately  317,000  metric  tons  were  used
internally  with  the  remainder  sold  to  third  parties.   For  its  Canadian
sulfate-process  plant,  Kronos also purchases sulfate grade slag (approximately
29,000 metric tons in 2005) primarily from Q.I.T.  Fer et Titane Inc.  Canada, a
subsidiary of Rio Tinto plc UK, under a long-term  supply  contract that expires
at the end of 2009. Raw materials purchased under these contracts and extensions
thereof  are  expected  to  meet  the  Company's   sulfate   process   feedstock
requirements over the next several years. The contracts contain fixed quantities
that Kronos is required  to  purchase,  although  these  contracts  allow for an
upward or downward  adjustment in the quantity  purchased.  The quantities under
these contracts do not require Kronos to purchase feedstock in excess of amounts
that Kronos would reasonably  consume in any given year. The pricing under these
agreements is generally negotiated annually.

     The number of sources of, and  availability  of,  certain raw  materials is
specific to the particular  geographic region in which a facility is located. As
noted  above,  Kronos  purchases   titanium-bearing  ore  from  three  different
suppliers in different  countries under multiple-year  contracts.  Political and
economic  instability in certain  countries from which Kronos  purchases its raw
material  supplies could  adversely  affect the  availability of such feedstock.
Should  Kronos'  vendors not be able to meet their  contractual  obligations  or
should Kronos be otherwise unable to obtain necessary raw materials,  Kronos may
incur  higher costs for raw  materials  or may be required to reduce  production
levels,  which  may have a  material  adverse  effect  on  Kronos'  consolidated
financial position, results of operations or liquidity.


                                                  Quantities of Raw Materials Procured or
                                                                   Mined
                                                ---------------------------------------------
                                                ---------------------------------------------
Production Process/Raw Material                        (In thousands of metric tons)

Chloride process plants -
                                                                 
  purchased slag or natural rutile ore                              433

Sulfate process plants:
  Raw ilmenite ore mined internally                                 317
  Purchased slag                                                     29


     TiO2  manufacturing  joint  venture.  Subsidiaries  of Kronos and  Huntsman
Holdings LLC  ("Huntsman")  each own a  50%-interest  in a  manufacturing  joint
venture,   Louisiana   Pigment  Company   ("LPC").   LPC  owns  and  operates  a
chloride-process TiO2 plant located in Lake Charles, Louisiana.  Production from
the plant is shared equally by Kronos and Huntsman (the "Partners")  pursuant to
separate offtake agreements.

     A  supervisory  committee,  composed  of four  members,  two of  which  are
appointed by each  Partner,  directs the  business and affairs of LPC  including
production  and output  decisions.  Two  general  managers,  one  appointed  and
compensated  by each Partner,  manage the operations of the joint venture acting
under the direction of the supervisory committee.

     Kronos is required to purchase  one-half of the TiO2  produced by the joint
venture.  The  manufacturing  joint venture operates on a break-even  basis, and
accordingly  Kronos does not report any equity in earnings of the joint venture.
With the  exception of raw material and packaging  costs for the pigment  grades
produced,  Kronos and Huntsman share all costs and capital  expenditures  of the
joint  venture  equally.  Kronos' share of the net costs of the joint venture is
reported as a component of its cost of sales as the related TiO2  acquired  from
the joint venture is sold.

     Competition.  The TiO2  industry  is highly  competitive.  Kronos  competes
primarily on the basis of price,  product quality and technical service, and the
availability of high  performance  pigment grades.  Although certain TiO2 grades
are  considered   specialty  pigments,   the  majority  of  Kronos'  grades  and
substantially all of Kronos'  production are considered  commodity pigments with
price generally being the most significant  competitive factor.  Kronos believes
that it is the leading seller of TiO2 in several  countries,  including Germany,
with an estimated 12% share of worldwide Ti02 sales volume.  Overall,  Kronos is
the world's fifth largest producer of TiO2.

     Kronos' principal competitors are E.I. du Pont de Nemours & Co. ("DuPont");
Millennium Chemicals,  Inc.; Tronox Incorporated;  Huntsman; and Ishihara Sangyo
Kaisha, Ltd. Kronos' five largest  competitors have estimated  individual shares
of TiO2 production  capacity ranging from 24% to 4%, and an estimated  aggregate
70% share of worldwide  TiO2  production  volume.  DuPont has about  one-half of
total North American TiO2  production  capacity and is Kronos'  principal  North
American competitor.

     Worldwide capacity additions in the TiO2 market resulting from construction
of greenfield plants require  significant  capital  expenditures and substantial
lead time (typically three to five years in Kronos'  experience).  Kronos is not
aware of any greenfield plant under construction in the United States, Europe or
any other part of the world.  However,  a competitor has announced its intention
to build a greenfield  facility in China, but it is not clear when  construction
will begin and it is not likely that any product would be available  until 2010,
at the  earliest.  During 2004,  certain  competitors  either idled or shut down
facilities.  However, Kronos does expect that industry capacity will increase as
Kronos and its competitors  continue to debottleneck their existing  facilities.
Based on the factors  described  above,  Kronos  expects that the average annual
increase in industry  capacity from announced  debottlenecking  projects will be
less than the  average  annual  demand  growth for TiO2 during the next three to
five years. However, no assurance can be given that future increases in the TiO2
industry  production  capacity and future average annual demand growth rates for
TiO2 will conform to Kronos'  expectations.  If actual  developments differ from
Kronos'  expectations,  Kronos  and the TiO2  industry's  performances  could be
unfavorably affected.

     Research and development. Kronos' expenditures for research and development
process  technology  and quality  assurance  activities  were  approximately  $7
million  in 2003,  $8  million  in 2004 and $9  million  in 2005.  Research  and
development  activities  are conducted  principally at the  Leverkusen,  Germany
facility.  Such  activities  are directed  primarily  toward  improving both the
chloride  and  sulfate  production  processes,  improving  product  quality  and
strengthening   Kronos'   competitive   position  by   developing   new  pigment
applications.

     Kronos continually seeks to improve the quality of its grades, and has been
successful at developing  new grades for existing and new  applications  to meet
the needs of customers and increase product life cycle. Since 1999, thirteen new
grades  have  been  added for  plastics,  coatings,  fiber  and  paper  laminate
applications.

     Patents and trademarks.  Patents held for products and production processes
are important to Kronos and its  continuing  business  activities.  Kronos seeks
patent  protection  for its technical  developments,  principally  in the United
States,  Canada  and  Europe,  and  from  time to  time  enters  into  licensing
arrangements with third parties.  Kronos' existing patents generally have a term
of 20 years from the date of filing,  and have remaining  terms ranging from one
to 20 years. Kronos seeks to protect its intellectual property rights, including
its patent rights,  and from time to time Kronos is engaged in disputes relating
to the protection and use of intellectual property relating to its products.

     Kronos' major trademarks,  including Kronos,  are protected by registration
in  the  United  States  and  elsewhere   with  respect  to  those  products  it
manufactures and sells.  Kronos also relies on unpatented  proprietary  know-how
and continuing  technological  innovation and other trade secrets to develop and
maintain its  competitive  position.  Kronos'  proprietary  chloride  production
process is an important part of Kronos'  technology,  and Kronos' business could
be harmed if Kronos should fail to maintain confidentiality of its trade secrets
used in this technology.

     Customer  base and annual  seasonality.  Kronos  believes  that neither its
aggregate  sales  nor  those  of  any  of  its  principal   product  groups  are
concentrated in or materially  dependent upon any single customer or small group
of customers.  Kronos' largest ten customers  accounted for approximately 26% of
sales  in  2005.  Neither  Kronos'  business  as a  whole  or that of any of its
principal product groups is seasonal to any significant  extent.  Due in part to
the  increase  in paint  production  in the spring to meet the spring and summer
painting season demand, TiO2 sales are generally higher in the first half of the
year than in the second half of the year.

     Employees.  As of December 31, 2005,  Kronos employed  approximately  2,415
persons (excluding employees of the Louisiana joint venture),  with 50 employees
in the United States, 420 employees in Canada and 1,945 employees in Europe.

     Hourly  employees in production  facilities  worldwide,  including the TiO2
joint  venture,  are  represented  by a  variety  of labor  unions,  with  labor
agreements  having various  expiration  dates.  In Europe,  union  employees are
covered by master  collective  bargaining  agreements in the chemicals  industry
that are renewed annually.  In Canada,  Kronos' union employees are covered by a
collective  bargaining  agreement that expires in June 2007. Kronos believes its
labor relations are good.

     Regulatory and environmental  matters.  Kronos'  operations are governed by
various  environmental laws and regulations.  Certain of Kronos' operations are,
or have been  engaged  in the  handling,  manufacture  or use of  substances  or
compounds  that may be  considered  toxic or  hazardous  within  the  meaning of
applicable  environmental laws and regulations.  As with other companies engaged
in similar  businesses,  certain  past and current  operations  and  products of
Kronos have the potential to cause  environmental  or other  damage.  Kronos has
implemented  and  continues  to  implement  various  policies and programs in an
effort to minimize these risks.  Kronos' policy is to maintain  compliance  with
applicable  environmental  laws and  regulations  at all its  facilities  and to
strive to improve its  environmental  performance.  It is  possible  that future
developments,   such  as  stricter   requirements  in  environmental   laws  and
enforcement  policies  thereunder,  could adversely  affect Kronos'  production,
handling, use, storage,  transportation,  sale or disposal of such substances as
well as  Kronos'  consolidated  financial  position,  results of  operations  or
liquidity.

     Kronos' U.S. manufacturing operations are governed by federal environmental
and worker  health and safety laws and  regulations,  principally  the  Resource
Conservation and Recovery Act ("RCRA"),  the Occupational Safety and Health Act,
the Clean Air Act, the Clean Water Act, the Safe  Drinking  Water Act, the Toxic
Substances   Control   Act  and  the   Comprehensive   Environmental   Response,
Compensation  and  Liability  Act, as amended by the  Superfund  Amendments  and
Reauthorization  Act  ("CERCLA"),  as well as the  state  counterparts  of these
statutes.  Kronos believes the TiO2 plant owned by the LPC joint venture and the
TiO2  slurry  facility  owned  by  Kronos  in  Lake  Charles,  Louisiana  are in
substantial compliance with applicable  requirements of these laws or compliance
orders issued thereunder. Kronos has no other U.S. plants.

     While the laws  regulating  operations of  industrial  facilities in Europe
vary from country to country,  a common regulatory  framework is provided by the
European Union (the "EU").  Germany and Belgium are members of the EU and follow
its initiatives. Norway, although not a member of the EU, generally patterns its
environmental regulations after the EU. Kronos believes that it has obtained all
required   permits  and  is  in  substantial   compliance   with  applicable  EU
requirements.

     At its sulfate  plant  facilities  in Leverkusen  and  Nordenham,  Germany,
Kronos  recycles weak sulfuric acid either through  contracts with third parties
or using its own facilities. At Kronos' Fredrikstad,  Norway plant, Kronos ships
its spent  acid to a third  party  location  where it is treated  and  disposed.
Kronos' Canadian  sulfate plant  neutralizes its spent acid and sells its gypsum
by-product to a local wallboard manufacturer. Kronos has a contract with a third
party to treat certain  sulfate-process  effluents at its German sulfate plants.
With regard to the German plants,  either party may terminate the contract after
giving three or four years advance notice, depending on the contract.

     From time to time,  Kronos'  facilities  may be  subject  to  environmental
regulatory  enforcement  under U.S.  and foreign  statutes.  Resolution  of such
matters   typically   involves  the   establishment   of  compliance   programs.
Occasionally,  resolution  may result in the payment of  penalties,  but to date
such  penalties have not involved  amounts  having a material  adverse effect on
Kronos'  consolidated  financial  position,  results of operations or liquidity.
Kronos  believes  that  all  its  plants  are  in  substantial  compliance  with
applicable environmental laws.

     Kronos'  capital   expenditures   related  to  its  ongoing   environmental
protection and improvement  programs in 2005 were approximately $4 million,  and
are currently expected to be approximately $6 million in 2006.

OTHER

     NL  Industries,  Inc. In addition to its 70% ownership of CompX and its 36%
ownership  of Kronos at December  31,  2005,  NL also holds  certain  marketable
securities  and  other  investments.  NL also  owns  100% of EWI  Re.  Inc.,  an
insurance brokerage and risk management services company.  See Notes 5 and 17 to
the Consolidated Financial Statements.

     Foreign  operations.  Through its subsidiaries and affiliates,  the Company
has  substantial  operations  and assets  located  outside  the  United  States,
principally chemicals operations in Germany,  Belgium and Norway,  chemicals and
component  products  operations in Canada and component  products  operations in
Taiwan. See Note 3 to the Consolidated  Financial Statements.  Approximately 71%
of Kronos' 2005 aggregate TiO2 sales were to non-U.S. customers, including 8% to
customers  in areas other than Europe and Canada.  Approximately  20% of CompX's
2005 sales were to non-U.S.  customers located principally in Canada and Europe.
Foreign  operations are subject to, among other things,  currency  exchange rate
fluctuations and the Company's  results of operations have in the past been both
favorably and unfavorably  affected by fluctuations in currency  exchange rates.
See Item 7 -  "Management's  Discussion and Analysis of Financial  Condition and
Results of Operations" and Item 7A - "Quantitative  and Qualitative  Disclosures
About Market Risk."

     CompX and Kronos have,  from time to time,  entered into  currency  forward
contracts  to  mitigate  exchange  rate  fluctuation  risk for a portion  of its
receivables related to their Canadian operations denominated in currencies other
than the Canadian  dollar  (principally  the U.S.  dollar) or for similar  risks
associated  with future sales.  CompX and Kronos may,  from time to time,  enter
into  currency  forward  contracts to mitigate  exchange rate  fluctuation  risk
associated with specific  transactions,  such as  intercompany  dividends or the
acquisition of a significant  amount of assets.  See Note 20 to the Consolidated
Financial  Statements.  Otherwise,  the  Company  does not  generally  engage in
currency derivative transactions.

     Political and economic  uncertainties  in certain of the countries in which
the Company  operates  may expose the Company to risk of loss.  The Company does
not believe  that there is currently  any  likelihood  of material  loss through
political or economic  instability,  seizure,  nationalization or similar event.
The Company cannot predict,  however,  whether events of this type in the future
could have a material effect on its operations.  The Company's manufacturing and
mining  operations  are also  subject to  extensive  and  diverse  environmental
regulations in each of the foreign countries in which they operate, as discussed
in the respective business sections elsewhere herein.

     Regulatory and environmental matters.  Regulatory and environmental matters
are discussed in the respective business sections contained elsewhere herein and
in Item 3 - "Legal  Proceedings." In addition,  the information included in Note
19  to  the  Consolidated   Financial   Statements  under  the  captions  "Legal
proceedings  --  lead  pigment  litigation"  and -  "Environmental  matters  and
litigation" is incorporated herein by reference.

     Insurance.   The  Company  maintains   insurance  for  its  businesses  and
operations, with customary levels of coverage,  deductibles and limits. See also
Item 3 - "Legal  Proceedings  -  Insurance  coverage  claims" and Note 17 to the
Consolidated Financial Statements.

     Acquisition and restructuring  activities.  The Company routinely  compares
its liquidity requirements and alternative uses of capital against the estimated
future  cash  flows to be  received  from its  subsidiaries  and  unconsolidated
affiliates,  and the estimated  sales value of those units.  As a result of this
process,  the  Company  has in the  past  and may in the  future  seek to  raise
additional   capital,   refinance  or   restructure   indebtedness,   repurchase
indebtedness in the market or otherwise,  modify its dividend  policy,  consider
the sale of interests in subsidiaries,  business units, marketable securities or
other assets,  or take a combination  of such steps or other steps,  to increase
liquidity,  reduce indebtedness and fund future activities. Such activities have
in the past and may in the future involve related companies.  From time to time,
the Company and related  entities also evaluate the  restructuring  of ownership
interests among its subsidiaries  and related  companies and expects to continue
this activity in the future.

     The Company and other  entities  that may be deemed to be  controlled by or
affiliated  with Mr.  Harold  C.  Simmons  routinely  evaluate  acquisitions  of
interests in, or combinations  with,  companies,  including  related  companies,
perceived by management to be undervalued in the  marketplace.  These  companies
may or may  not be  engaged  in  businesses  related  to the  Company's  current
businesses.  In a number of  instances,  the  Company has  actively  managed the
businesses acquired with a focus on maximizing return-on-investment through cost
reductions,  capital expenditures,  improved operating  efficiencies,  selective
marketing to address market niches,  disposition of marginal operations,  use of
leverage  and  redeployment  of  capital  to more  productive  assets.  In other
instances,  the Company has disposed of the acquired interest in a company prior
to gaining  control.  The Company  intends to consider  such  activities  in the
future and may, in connection with such activities,  consider issuing additional
equity  securities and increasing the  indebtedness of NL, its  subsidiaries and
related companies.

     Website and other available  information.  The Company files reports, proxy
and information  statements and other  information  with the SEC. NL maintains a
website  on the  Internet  with the  address of  www.nl-ind.com.  Copies of this
Annual Report on Form 10-K for the year ended December 31, 2005,  copies of NL's
Quarterly Reports on Form 10-Q for 2005 and 2006 and any Current Reports on Form
8-K for 2005 and 2006, and any amendments thereto, are or will be available free
of charge at such website as soon as reasonably  practical  after they are filed
with  the  SEC.  Additional  information  regarding  NL,  including  NL's  Audit
Committee  charter  and NL's Code of Business  Conduct  and Ethics,  can also be
found at this website as required.  Information contained on NL's website is not
part of this  report.  The Company will also  provide to anyone  without  charge
copies of such  documents  upon written  request to the Company.  Such  requests
should be directed to the attention of the Corporate  Secretary at the Company's
address on the cover page of this Form 10-K.

     The general public may read and copy any materials NL files with the SEC at
the SEC's Public  Reference  Room at 450 Fifth Street,  N.W.,  Washington,  D.C.
20549.  The  public  may  obtain  information  on the  operation  of the  Public
Reference Room by calling the SEC at 1-800-SEC-0330.  NL is an electronic filer,
and the SEC  maintains an Internet  website  that  contains  reports,  proxy and
information  statements,  and  other  information  regarding  issuers  that file
electronically  with the SEC,  including  NL. The Internet  address of the SEC's
website is www.sec.gov.

ITEM 1A.    RISK FACTORS

     Listed below are certain risk factors  associated  with the Company and its
businesses.  In addition to the potential effect of these risk factors discussed
below,  any risk factor  which  could  result in reduced  earnings or  operating
losses,  or reduced  liquidity,  could in turn  adversely  affect our ability to
service our liabilities or pay dividends on our common stock or adversely affect
the quoted market prices for our securities.

     We  could  incur  significant  costs  related  to legal  and  environmental
matters. NL formerly  manufactured lead pigments for use in paint. NL and others
have been named as defendants in various legal  proceedings  seeking damages for
personal injury, property damage and governmental  expenditures allegedly caused
by the use of lead-based paints. These lawsuits seek recovery under a variety of
theories,  including  public and private  nuisance,  negligent  product  design,
negligent   failure   to   warn,   strict   liability,   breach   of   warranty,
conspiracy/concert of action, aiding and abetting,  enterprise liability, market
share   or  risk   contribution   liability,   intentional   tort,   fraud   and
misrepresentation,  violations of state consumer protection  statutes,  supplier
negligence and similar claims. The plaintiffs in these actions generally seek to
impose on the  defendants  responsibility  for lead paint  abatement  and health
concerns  associated with the use of lead-based  paints,  including  damages for
personal  injury,  contribution  and/or  indemnification  for medical  expenses,
medical  monitoring  expenses and costs for  educational  programs.  As with all
legal proceedings, the outcome is uncertain. Any liability we might incur in the
future could be material.  See also Item 3 - "Legal  Proceedings  - Lead pigment
litigation."

     Certain  properties  and facilities  used in our former  businesses are the
subject of  litigation,  administrative  proceedings or  investigations  arising
under various environmental laws. These proceedings seek cleanup costs, personal
injury or property damages and/or damages for injury to natural resources.  Some
of these  proceedings  involve  claims for  substantial  amounts.  Environmental
obligations  are difficult to assess and estimate for numerous  reasons,  and we
may incur costs for environmental remediation in the future in excess of amounts
currently  estimated.  Any  liability  we  might  incur in the  future  could be
material.  See also Item 3 - "Legal  Proceedings  -  Environmental  matters  and
litigation."

     Our assets consist  primarily of investments in our operating  subsidiaries
and affiliates,  and we are dependent upon  distributions  from our subsidiaries
and  affiliates.  A majority of our cash flows are  generated  by our  operating
subsidiaries, and our ability to service our liabilities and to pay dividends on
our common  stock  depends to a large  extent upon the cash  dividends  or other
distributions  we receive from our  subsidiaries.  Our subsidiaries are separate
and  distinct  legal  entities  and  they  have  no  obligation,  contingent  or
otherwise, to pay such cash dividends or other distributions to us. In addition,
the payment of dividends or other  distributions  from our subsidiaries could be
subject to  restrictions on or taxation of dividends or repatriation of earnings
under applicable law, monetary transfer restrictions,  foreign currency exchange
regulations  in  jurisdictions  in which  our  subsidiaries  operate,  any other
restrictions  imposed by current or future  agreements to which are subsidiaries
may be a party, including debt instruments. Events beyond our control, including
changes in general business and economic conditions,  could adversely impact the
ability of our subsidiaries to pay dividends or make other  distributions to us.
If our  subsidiaries  would become unable to make  sufficient  cash dividends or
other  distributions  to us, our ability to service our  liabilities  and to pay
dividends  on our common  stock could be  adversely  affected.  In  addition,  a
significant  portion  of our  assets  consists  of  ownership  interests  in our
subsidiaries  and  affiliates.  If we were  required  to  liquidate  any of such
securities  in  order  generate  funds to  satisfy  our  liabilities,  we may be
required  to sell  such  securities  at a time or times at which we would not be
able to realize what we believe to be the actual value of such assets.

     Subject to specified limitations,  the agreements covering the indebtedness
of our subsidiaries permit our subsidiaries to incur additional debt,  including
secured  debt.  At  December  31,  2005,  the  outstanding  indebtedness  of our
subsidiaries  and affiliates  aggregated  $467.4 million,  substantially  all of
which relates to KII's Senior  Secured Notes.  In addition,  as of such date our
subsidiaries and affiliates have unused borrowing  availability of approximately
$186.0 million under our  subsidiaries'  credit  facilities,  subject to certain
tests.  Any borrowing or other  liabilities or our subsidiaries are structurally
senior to any liabilities of NL, and a substantial  portion of our subsidiaries'
assets collateralize the indebtedness of our subsidiaries.  If any new debt were
to be added to our  subsidiaries'  current debt levels,  then the related  risks
that we and they now face, as more fully described herein, could intensify.

     Demand for, and prices of,  certain of our products are cyclical and we may
experience  prolonged  depressed market  conditions for our products,  which may
result in reduced earnings or operating losses. A significant portion of our net
income is  attributable  to sales of TiO2 by Kronos.  Pricing  within the global
TiO2 industry over the long term is cyclical,  and changes in industry  economic
conditions,  especially in western  industrialized  nations,  can  significantly
impact  our  earnings  and  operating  cash  flows.  This may  result in reduced
earnings or operating losses.

     Historically,  the  markets  for  many  of our  products  have  experienced
alternating  periods of tight  supply,  causing  prices  and  profit  margins to
increase,  followed  by periods of  capacity  additions,  and demand  reductions
resulting in oversupply and declining prices and profit margins.  Selling prices
(in billing  currencies)  for TiO2 were generally:  increasing  during the first
quarter of 2003, flat during the second quarter of 2003,  decreasing  during the
last half of 2003 and the first quarter of 2004,  flat during the second quarter
of 2004, increasing in the last half of 2004 and in the first six months of 2005
and decreasing during the second half of 2005.

     Our overall average TiO2 selling prices in billing currencies:

o    were 3% higher in 2003 as compared to 2002;

o    were 2% lower in 2004 as compared to 2003; and

o    were 8% higher in 2005 as compared to 2004.

     Future  growth in demand for TiO2 may not be  sufficient  to alleviate  any
future  conditions of excess industry  capacity,  and such conditions may not be
sustained or may be further aggravated by anticipated or unanticipated  capacity
additions  or other  events.  The  demand  for TiO2  during a given year is also
subject to annual seasonal fluctuations.  TiO2 sales are generally higher in the
first  half of the year than in the  second  half of the year due in part to the
increase  in paint  production  in the  spring  to meet the  spring  and  summer
painting season demand.

     As a global  business,  we are exposed to local business risks in different
countries,  which could result in losses. CompX and Kronos conduct some of their
businesses in several jurisdictions outside of the United States and are subject
to risks normally associated with international operations,  which include trade
barriers,  tariffs,  exchange  controls,  national and regional  labor  strikes,
social and political risks, general economic risks, seizures,  nationalizations,
compliance  with a  variety  of  foreign  laws,  including  tax  laws,  and  the
difficulty in enforcing  agreements and collecting  receivables  through foreign
legal systems. For example, we have substantial net operating loss carryforwards
in Germany,  and any change in German tax law that adversely impacts our ability
to fully utilize such carryforwards could adversely affect us.

     We may incur losses from fluctuations in currency exchange rates. CompX and
Kronos operate their businesses in several different  countries,  and sell their
products  worldwide.  Therefore,  we are exposed to risks  related to the prices
that we receive for our products and the need to convert  currencies that we may
receive for some of our products into the currencies required to pay some of our
debt, or into  currencies in which we may purchase  certain raw materials or pay
for certain  services,  all of which could result in future losses  depending on
fluctuations in foreign currency exchange rates.

     We sell several of our products in mature and highly competitive industries
and face price pressures in the markets in which we operate, which may result in
reduced  earnings or operating  losses.  The global  markets in which Kronos and
CompX operate their businesses are highly competitive. Competition is based on a
number of  factors,  such as price,  product  quality and  service.  Some of our
competitors  may be able to drive down  prices for our  products  because  their
costs are lower than our  costs,  especially  CompX's  competitors  in Asia.  In
addition, some of our competitors' financial,  technological and other resources
may be greater than our resources,  and such  competitors  may be better able to
withstand changes in market  conditions.  Our competitors may be able to respond
more quickly than we can to new or emerging technologies and changes in customer
requirements.  Further,  consolidation of our competitors or customers in any of
the  industries  in which we  compete  may  result  in  reduced  demand  for our
products. In addition, in some of our businesses new competitors could emerge by
modifying  their  existing  production  facilities  so  they  could  manufacture
products that compete with our products.  The  occurrence of any of these events
could result in reduced earnings or operating losses.

     Higher costs or limited  availability of our raw materials may decrease our
liquidity. The number of sources for, and availability of, certain raw materials
is  specific  to the  particular  geographical  region  in which a  facility  is
located.  For example,  titanium-containing  feedstocks  suitable for use in our
TiO2  facilities  are available  from a limited  number of suppliers  around the
world.  Political  and  economic  instability  in the  countries  from  which we
purchase our raw material  supplies could adversely  affect their  availability.
Should our vendors not be able to meet their contractual obligations,  should we
be otherwise  unable to obtain  necessary  raw materials or should we experience
increased raw material and other operating  costs, we may incur higher costs for
raw material or other  operating  costs or may be required to reduce  production
levels, either of which may decrease our liquidity as we may be unable to offset
such higher costs with increased selling prices for our products.

     We are subject to many environmental and safety regulations with respect to
our operating  facilities that may result in unanticipated costs or liabilities.
Our facilities are subject to extensive laws, regulations,  rules and ordinances
relating to the protection of the  environment,  including  those  governing the
discharge of pollutants in the air and water and the generation,  management and
disposal of hazardous  substances  and wastes or other  materials.  We may incur
substantial  costs,  including  fines,  damages and criminal  penalties or civil
sanctions,  or experience  interruptions in our operations for actual or alleged
violations or compliance  requirements  arising under  environmental  laws.  Our
operations could result in violations under environmental laws, including spills
or other  releases  of  hazardous  substances  to the  environment.  Some of our
operating facilities are in densely populated urban areas or in industrial areas
adjacent to other operating facilities. In the event of an accidental release or
catastrophic  incident,  we could incur material costs as a result of addressing
such an event and in implementing measures to prevent such incidents.  Given the
nature  of  our  business,  violations  of  environmental  laws  may  result  in
restrictions   imposed  on  our  operating   activities  or  substantial  fines,
penalties, damages or other costs, including as a result of private litigation.

     Our  production  facilities  have  been  used  for a  number  of  years  to
manufacture products or conduct mining operations. We may incur additional costs
related  to  compliance  with  environmental  laws  applicable  to our  historic
operations  and  these  facilities.   In  addition,  we  may  incur  significant
expenditures  to comply  with  existing  or  future  environmental  laws.  Costs
relating  to  environmental  matters  will be  subject  to  evolving  regulatory
requirements  and will depend on the timing of  promulgation  and enforcement of
specific  standards that impose  requirements  on our  operations.  Costs beyond
those   currently   anticipated  may  be  required  under  existing  and  future
environmental laws.

     If our patents are declared  invalid or our trade  secrets  become known to
competitors, our ability to compete may be adversely affected. Protection of our
proprietary  processes  and other  technology  is important  to our  competitive
position.  Consequently,  we rely on judicial  enforcement for protection of our
patents,  and  our  patents  may be  challenged,  invalidated,  circumvented  or
rendered unenforceable.  Furthermore, if any pending patent application filed by
us does not result in an issued patent,  or if patents are issued to us but such
patents do not provide meaningful protection of our intellectual property,  then
the use of any such  intellectual  property by our  competitors  could result in
decreasing our cash flows. Additionally,  our competitors or other third parties
may obtain patents that restrict or preclude our ability to lawfully  produce or
sell our products in a competitive manner, which could have the same effects.

     We also rely on certain  unpatented  proprietary  know-how  and  continuing
technological  innovation  and other trade  secrets to develop and  maintain our
competitive position.  Although it is our practice to enter into confidentiality
agreements to protect our intellectual  property,  because these confidentiality
agreements  may  be  breached,   such  agreements  may  not  provide  sufficient
protection for our trade secrets or proprietary  know-how,  or adequate remedies
may not be available in the event of an  unauthorized  use or disclosure of such
trade secrets and know-how.  In addition,  others could obtain knowledge of such
trade secrets through independent development or other access by legal means.

     Loss of key  personnel  or our ability to attract and retain new  qualified
personnel  could hurt our businesses and inhibit our ability to operate and grow
successfully.  Our success in the highly competitive markets in which we operate
will continue to depend to a significant  extent on the leadership  teams of our
businesses and other key management personnel.  We generally do not have binding
employment agreements with any of these managers.  This increases the risks that
we may not be able to retain our current management  personnel and we may not be
able to recruit  qualified  individuals to join our management  team,  including
recruiting  qualified  individuals to replace any of our current  personnel that
may leave in the future.

     Our relationships with our union employees could  deteriorate.  At December
31,  2005,  we employed  approximately  3,650  persons  worldwide in our various
businesses.  A  significant  number of our  employees  are subject to collective
bargaining  or  similar  arrangements.  We may not be able  to  negotiate  labor
agreements with respect to these  employees on satisfactory  terms or at all. If
our employees were to engage in a strike,  work stoppage or other  slowdown,  we
could  experience a significant  disruption of our  operations or higher ongoing
labor costs.


     Our  leverage  may impair our  financial  condition or limit our ability to
operate our businesses. As of December 31, 2005, our total consolidated debt was
approximately  $1.6 million,  substantially  all of which relates to CompX,  and
Kronos had total debt of approximately  $465.3 million.  Our level of debt could
have important consequences to our stockholders and creditors, including:

o    making it more difficult for us to satisfy our obligations  with respect to
     our liabilities;

o    increasing  our  vulnerability  to adverse  general  economic  and industry
     conditions;

o    requiring  that a portion of our cash flow from  operations be used for the
     payment of interest on our debt,  therefore reducing our ability to use our
     cash flow to fund working capital,  capital expenditures,  dividends on our
     common stock, acquisitions and general corporate requirements;

o    limiting our ability to obtain additional  financing to fund future working
     capital,   capital   expenditures,   acquisitions  and  general   corporate
     requirements;

o    limiting our  flexibility  in planning for, or reacting to,  changes in our
     business and the industry in which we operate; and

o    placing us at a competitive  disadvantage  relative to other less leveraged
     competitors.

     In addition to our  indebtedness,  we are party to various  lease and other
agreements  pursuant to which, along with our indebtedness,  we are committed to
pay approximately  $21.6 million in 2006. Kronos was similarly  committed to pay
approximately  $272.1 million. Our ability to make payments on and refinance our
debt, and to fund planned capital expenditures, depends on our future ability to
generate  cash flow.  To some  extent,  this is  subject  to  general  economic,
financial,  competitive,  legislative,  regulatory  and other  factors  that are
beyond  our  control.  In  addition,  our  ability  to  borrow  funds  under our
subsidiaries'  credit  facilities in the future will in some instances depend in
part on these  subsidiaries'  ability to maintain specified financial ratios and
satisfy  certain  financial   covenants   contained  in  the  applicable  credit
agreement.  Our business may not generate cash flows from  operating  activities
sufficient  to enable us to pay our debts  when they  become due and to fund our
other liquidity needs. As a result, we may need to refinance all or a portion of
our debt before  maturity.  We may not be able to  refinance  any of our debt on
favorable  terms, if at all. Any inability to generate  sufficient cash flows or
to refinance our debt on favorable terms could have a material adverse effect on
our financial condition.

ITEM 1B. UNRESOLVED STAFF COMMENTS

     Not applicable.

ITEM 2. PROPERTIES

     NL's principal  executive offices are located in an office building located
at 5430 LBJ Freeway, Dallas, Texas, 75240-2697. The principal properties used in
the  operations of the  subsidiaries  and  affiliates of the Company,  including
certain risks and uncertainties related thereto, are described in the applicable
business  sections  of  Item 1 -  "Business."  The  Company  believes  that  its
facilities are generally adequate and suitable for their respective uses.

ITEM 3. LEGAL PROCEEDINGS

     The  Company is  involved  in various  legal  proceedings.  In  addition to
information that is included below,  certain information called for by this Item
is  included  in  Note  19  to  the  Consolidated  Financial  Statements,  which
information is incorporated herein by reference.

Lead pigment litigation.

     NL's former operations included the manufacture of lead pigments for use in
paint and lead-based paint. NL, other former  manufacturers of lead pigments for
use  in  paint   and   lead-based   paint   (together,   the   "former   pigment
manufacturers"), and the Lead Industries Association ("LIA"), which discontinued
business  operations  in 2002,  have been named as  defendants  in various legal
proceedings   seeking   damages  for  personal   injury,   property  damage  and
governmental  expenditures  allegedly  caused by the use of  lead-based  paints.
Certain of these  actions have been filed by or on behalf of states,  large U.S.
cities or their public housing  authorities  and school  districts,  and certain
others have been asserted as class actions. These lawsuits seek recovery under a
variety of theories,  including public and private  nuisance,  negligent product
design,  negligent  failure  to warn,  strict  liability,  breach  of  warranty,
conspiracy/concert of action, aiding and abetting,  enterprise liability, market
share   or  risk   contribution   liability,   intentional   tort,   fraud   and
misrepresentation,  violations of state consumer protection  statutes,  supplier
negligence and similar claims.

     The plaintiffs in these actions  generally seek to impose on the defendants
responsibility for lead paint abatement and health concerns  associated with the
use of lead-based  paints,  including damages for personal injury,  contribution
and/or  indemnification  for medical expenses,  medical monitoring  expenses and
costs for  educational  programs.  A number of cases are  inactive  or have been
dismissed or  withdrawn.  Most of the remaining  cases are in various  pre-trial
stages.  Some are on appeal  following  dismissal or summary judgment rulings in
favor of either the  defendants or the  plaintiffs.  In addition,  various other
cases are pending (in which NL is not a defendant)  seeking  recovery for injury
allegedly  caused by lead  pigment and  lead-based  paint.  Although NL is not a
defendant in these cases, the outcome of these cases may have an impact on cases
that might be filed against NL in the future.

     NL believes  these actions are without  merit,  intends to continue to deny
all  allegations  of wrongdoing  and liability and to defend against all actions
vigorously.  NL has never settled any of these cases, nor have any final adverse
judgments  against NL been entered.  However,  see the  discussion  below in The
State of Rhode  Island  case.  See also  Note 19 to the  Consolidated  Financial
Statements.  NL has not  accrued  any  amounts  for  pending  lead  pigment  and
lead-based paint litigation. Liability that may result, if any, cannot currently
be  reasonably  estimated.  There  can be no  assurance  that NL will not  incur
liability  in the future in respect of this  pending  litigation  in view of the
inherent  uncertainties  involved  in court  and jury  rulings  in  pending  and
possible  future cases.  If any such future  liability  were to be incurred,  it
could have a material  adverse  effect on the Company's  consolidated  financial
position, results of operations and liquidity.

     In August 1992, NL was served with an amended complaint in Jackson,  et al.
v. The Glidden Co., et al., Court of Common Pleas,  Cuyahoga County,  Cleveland,
Ohio (Case No. 236835).  Plaintiffs seek  compensatory  and punitive damages for
personal  injury  caused  by the  ingestion  of  lead,  and an  order  directing
defendants  to  abate  lead-based  paint in  buildings.  Plaintiffs  purport  to
represent a class of similarly  situated  persons  throughout the State of Ohio.
The trial court  denied  plaintiffs'  motion for class  certification.  In 2003,
defendants filed a motion for summary judgment on all claims,  which was granted
in January 2006. In February 2006, plaintiffs filed a notice of appeal.

     In  September  1999,  an  amended  complaint  was  filed in  Thomas v. Lead
Industries Association,  et al. (Circuit Court, Milwaukee,  Wisconsin,  Case No.
99-CV-6411)  adding as defendants  the former  pigment  manufacturers  to a suit
originally filed against  plaintiff's  landlords.  Plaintiff,  a minor,  alleges
injuries  purportedly  caused by lead on the  surfaces  of  premises in homes in
which he resided.  Plaintiff seeks compensatory and punitive damages, and NL has
denied liability.  In January 2003, the trial court granted  defendants'  motion
for summary  judgment,  dismissing  all counts of the  complaint.  The plaintiff
appealed  the  dismissal,  and in June 2004 the  appellate  court  affirmed  the
dismissal.  In July 2005,  the Wisconsin  Supreme  Court  affirmed the appellate
court's  dismissal of plaintiff's  civil  conspiracy  and  enterprise  liability
claims and reversed and remanded the appellate  court's dismissal of plaintiff's
risk contribution claim. The matter is now proceeding in the trial court.

     In October 1999, NL was served with a complaint in State of Rhode Island v.
Lead  Industries  Association,  et al.  (Superior  Court  of Rhode  Island,  No.
99-5226).  The State seeks  compensatory  and  punitive  damages for medical and
educational  expenses,  and public and private building  abatement expenses that
the  State  alleges  were  caused by lead  paint,  and for  funding  of a public
education campaign and health screening  programs.  Plaintiff seeks judgments of
joint and several  liability  against the former pigment  manufacturers  and the
LIA. Trial began before a Rhode Island state court jury in September 2002 on the
question of whether lead pigment in paint on Rhode Island  buildings is a public
nuisance.  On October 29, 2002,  the trial judge declared a mistrial in the case
when the jury was  unable  to reach a  verdict  on the  question,  with the jury
reportedly  deadlocked 4-2 in the  defendants'  favor.  Other claims made by the
Attorney General, including violation of the Rhode Island Unfair Trade Practices
and  Consumer  Protection  Act,  strict  liability,  negligence,  negligent  and
fraudulent misrepresentation, civil conspiracy, indemnity, and unjust enrichment
were not the subject of the 2002 trial and remain  pending.  In March 2003,  the
court denied motions by plaintiffs  and defendants for judgment  notwithstanding
the  verdict.  In January  2004,  plaintiff  requested  the court to dismiss its
claims for state-owned buildings,  claiming all remaining claims did not require
a jury and asking the court to reconsider the trial schedule.  In February 2004,
the   court   dismissed   the   strict    liability,    negligence,    negligent
misrepresentation and fraud claims with prejudice, and the time for the state to
appeal this  dismissal has not yet run. In March 2004,  the court ruled that the
defendants have a constitutional right to a trial by jury under the Rhode Island
Constitution.  Plaintiff appealed such ruling, and in July 2004 the Rhode Island
Supreme  Court  dismissed  plaintiff's  appeal of, and  plaintiff's  petition to
review,  the trial court's  ruling.  In May 2005, the trial court  dismissed the
conspiracy  claim  with  prejudice,  and the time for the state to  appeal  this
dismissal has not yet begun to run. In September  2005, the State  dismissed its
Unfair Trade Practices Act claim against NL without  prejudice.  Trial commenced
on  November  1,  2005 on the  State's  remaining  claims  of  public  nuisance,
indemnity and unjust enrichment against NL and three other defendants. Following
the State's  presentation  of its case,  the trial court  dismissed  the State's
claims of indemnity and unjust enrichment. The public nuisance claim was sent to
the jury in February 2006,  and the jury found that NL and two other  defendants
substantially  contributed  to the creation of a public  nuisance as a result of
the collective  presence of lead pigments in paints and coatings on buildings in
Rhode Island. The jury also found that NL and the two other defendants should be
ordered to abate the public  nuisance.  Following  the jury  verdict,  the trial
court  dismissed  the  State's  claim  for  punitive  damages.  The scope of the
abatement remedy will be determined by the judge. The extent, nature and cost of
such  remedy  is not  currently  known  and will be  determined  only  following
additional proceedings. NL intends to appeal any adverse judgment that the trial
court may enter against it.

     In October  1999,  NL was served with a complaint in Smith,  et al. v. Lead
Industries Association, et al. (Circuit Court for Baltimore City, Maryland, Case
No.  24-C-99-004490).  Plaintiffs,  seven minors from four  families,  each seek
compensatory  damages of $5 million  and  punitive  damages of $10  million  for
alleged  injuries due to  lead-based  paint.  Plaintiffs  allege that the former
pigment  manufacturers and other companies  alleged to have  manufactured  paint
and/or  gasoline  additives,  the  LIA  and  the  National  Paint  and  Coatings
Association are jointly and severally liable. NL has denied liability. The trial
court,  on defendants'  motions,  dismissed all plaintiffs'  claims.  Plaintiffs
appealed,  and in May 2004 the court of appeals  reinstated  certain claims.  In
September 2004, the court of appeals granted plaintiffs'  petition for review of
such  court's  affirmation  of the  dismissal  of  certain  of  the  plaintiffs'
remaining claims. In April 2005 the court of appeals vacated the decision of the
intermediate  appellate court,  stating that such court should not have accepted
the  appeal,  and  remanded  the  case  back  to the  trial  court  for  further
proceedings.  In February 2006,  the trial court issued orders again  dismissing
the Smith  family's  case and  severing and staying the cases of the three other
families. Plaintiffs have appealed.

     In February  2000,  NL was served with a complaint  in City of St. Louis v.
Lead  Industries  Association,  et al.  (Missouri  Circuit  Court 22nd  Judicial
Circuit,  St.  Louis City,  Cause No.  002-245,  Division  1).  Plaintiff  seeks
compensatory  and  punitive  damages for its  expenses  discovering  and abating
lead-based  paint,  detecting  lead  poisoning  and  providing  medical care and
educational  programs for City  residents,  and the costs of educating  children
suffering injuries due to lead exposure.  Plaintiff seeks judgments of joint and
several  liability  against  the former  pigment  manufacturers  and the LIA. In
November 2002, defendants' motion to dismiss was denied. In May 2003, plaintiffs
filed an amended complaint alleging only a nuisance claim.  Defendants'  renewed
motion to dismiss and motion for summary judgment were denied by the trial court
in March 2004,  but the trial court  limited  plaintiff's  complaint to monetary
damages from 1990 to 2000, specifically excluding future damages. In March 2005,
the defendants filed a motion for summary  judgment.  In January 2006, the trial
court granted defendants' motion for summary judgment. Plaintiffs have appealed.

     In April 2000,  NL was served with a complaint  in County of Santa Clara v.
Atlantic Richfield  Company,  et al. (Superior Court of the State of California,
County of Santa Clara,  Case No.  CV788657)  brought  against the former pigment
manufacturers,  the LIA and  certain  paint  manufacturers.  The County of Santa
Clara seeks to represent a class of California governmental entities (other than
the  state and its  agencies)  to  recover  compensatory  damages  for funds the
plaintiffs  have  expended or will in the future  expend for medical  treatment,
educational expenses,  abatement or other costs due to exposure to, or potential
exposure to, lead paint,  disgorgement of profit,  and punitive  damages.  Santa
Cruz,  Solano,  Alameda,  San Francisco,  and Kern  counties,  the cities of San
Francisco and Oakland,  the Oakland and San Francisco  unified school  districts
and housing  authorities  and the Oakland  Redevelopment  Agency have joined the
case as  plaintiffs.  In February  2003,  defendants  filed a motion for summary
judgment.  In July  2003,  the court  granted  defendants'  motion  for  summary
judgment on all remaining  claims.  In March 2006, the appellate  court affirmed
the dismissal of plaintiffs'  trespass claim,  Unfair  Competition Law claim and
public  nuisance  claim for  government-owned  properties.  The appellate  court
reversed the dismissal of  plaintiffs'  public  nuisance  claim for  residential
housing  properties,  plaintiffs'  negligence  and strict  liability  claims for
government-owned buildings and plaintiffs' fraud claim.

     In June 2000, a complaint was filed in Illinois state court,  Lewis, et al.
v. Lead Industries Association,  et al. (Circuit Court of Cook County, Illinois,
County Department,  Chancery Division,  Case No. 00CH09800).  Plaintiffs seek to
represent two classes,  one of all minors between the ages of six months and six
years who  resided in housing in  Illinois  built  before  1978,  and one of all
individuals  between the ages of six and twenty years who lived between the ages
of six months and six years in Illinois  housing built before 1978 and had blood
lead levels of 10  micrograms/deciliter  or more.  The  complaint  seeks damages
jointly  and  severally  from the former  pigment  manufacturers  and the LIA to
establish a medical  screening fund for the first class to determine  blood lead
levels,  a medical  monitoring  fund for the second class to detect the onset of
latent diseases,  and a fund for a public education campaign. In March 2002, the
court dismissed all claims.  Plaintiffs appealed, and in June 2003 the appellate
court  affirmed  the  dismissal  of five of the six  counts of  plaintiffs,  but
reversed the dismissal of the conspiracy count. In May 2004,  defendants filed a
motion for summary judgment on plaintiffs'  conspiracy count,  which was granted
in February  2005.  In February  2006,  the court of appeals  reversed the trial
court's dismissal of the case and remanded the case for further proceedings.  In
March 2006,  the  defendants  filed a petition  with the Illinois  Supreme Court
seeking review of the appellate court's ruling.

     In February  2001, NL was served with a complaint in Barker,  et al. v. The
Sherwin-Williams   Company,   et  al.   (Circuit  Court  of  Jefferson   County,
Mississippi, Civil Action No. 2000-587, and formerly known as Borden, et al. vs.
The  Sherwin-Williams  Company,  et al.). The complaint  seeks joint and several
liability for  compensatory and punitive damages from more than 40 manufacturers
and retailers of lead pigment and/or paint,  including NL, on behalf of 18 adult
residents  of  Mississippi  who were  allegedly  exposed  to lead  during  their
employment in  construction  and repair  activities.  In 2003, the court ordered
that the  claims of ten of the  plaintiffs  be  transferred  to  Holmes  County,
Mississippi  state court.  In April 2004,  the parties  jointly  petitioned  the
Mississippi  Supreme Court to transfer these ten plaintiffs to their appropriate
venue,  and in May 2004 the  Mississippi  Supreme Court remanded the case to the
trial court in Holmes  County and  instructed  the court to  transfer  these ten
plaintiffs to their appropriate  venues.  Five of these ten plaintiffs have been
dismissed without prejudice with respect to NL, and five remain against NL. With
respect to the eight plaintiffs in Jefferson  County,  seven of these plaintiffs
have been  dismissed  without  prejudice  with  respect to NL,  and one  remains
against NL.

     In May 2001,  NL was served with a  complaint  in City of  Milwaukee  v. NL
Industries,  Inc. and Mautz Paint  (Circuit  Court,  Civil  Division,  Milwaukee
County,  Wisconsin,  Case No.  01CV003066).  Plaintiff  seeks  compensatory  and
equitable relief for lead hazards in Milwaukee homes, restitution for amounts it
has spent to abate lead and punitive  damages.  NL has denied all liability.  In
July 2003,  defendants'  motion for  summary  judgment  was granted by the trial
court.  In November 2004, the appellate  court reversed this ruling and remanded
the case. Defendants filed a petition for review of the appellate court's ruling
in December 2004 with the Wisconsin Supreme Court, but withdrew this petition in
July 2005.  The case is now  proceeding  in the trial  court.  In January  2006,
defendants filed a motion to dismiss plaintiffs' claim.

     In January and February 2002, NL was served with complaints by 25 different
New Jersey  municipalities  and counties which have been  consolidated as In re:
Lead Paint Litigation (Superior Court of New Jersey, Middlesex County, Case Code
702).  Each  complaint  seeks  abatement  of lead paint from all housing and all
public buildings in each jurisdiction and punitive damages jointly and severally
from the former pigment  manufacturers  and the LIA. In November 2002, the court
entered  an order  dismissing  this case with  prejudice.  In August  2005,  the
appellate  court  affirmed the trial court's  dismissal of all counts except for
the state's public nuisance count, which has been reinstated.  In November 2005,
the New Jersey Supreme Court granted defendants'  petition seeking review of the
appellate court's ruling on the public nuisance count.

     In January  2002,  NL was served  with a complaint  in Jackson,  et al., v.
Phillips  Building  Supply of Laurel,  et al.  (Circuit  Court of Jones  County,
Mississippi,  Dkt.  Co.  2002-10-CV1).  The  complaint  seeks  joint and several
liability from three local retailers and six non-Mississippi companies that sold
paint for  compensatory  and  punitive  damages  on behalf of three  adults  for
injuries alleged to have been caused by the use of lead paint.  After removal to
federal  court,  in February  2003 the case was remanded to state court.  NL has
denied all liability and pre-trial  proceedings are continuing.  In August 2004,
plaintiffs  voluntarily  agreed  to  dismiss  one  plaintiff  and to  sever  the
remaining two plaintiffs. In July 2005, plaintiffs voluntarily agreed to dismiss
another plaintiff without prejudice, leaving one plaintiff remaining. In January
2006, the court set a trial date of April 2007.

     In April 2003,  NL was served with a complaint  in Jones v. NL  Industries,
Inc., et al.  (Circuit Court of LeFlore  County,  Mississippi,  Civil Action No.
2002-0241-CICI).  The plaintiffs,  fourteen children from five families, sued NL
and one landlord alleging strict liability,  negligence,  fraudulent concealment
and  misrepresentation,  and seek  compensatory and punitive damages for alleged
injuries  caused by lead paint.  Defendants  removed this case to federal court.
Discovery is  proceeding.  In September  2005,  the court set the trial date for
July 2006. In January 2006, defendants filed a motion for summary judgment.

     In November  2003,  NL was served with a  complaint  in Lauren  Brown v. NL
Industries,  Inc.,  et al.  (Circuit  Court  of Cook  County,  Illinois,  County
Department,  Law Division,  Case No. 03L 012425).  The  complaint  seeks damages
against  NL and two local  property  owners  on  behalf of a minor for  injuries
alleged to be due to exposure to lead paint contained in the minor's  residence.
NL has denied all allegations of liability. Discovery is proceeding.

     In December  2004,  NL was served with a complaint  in Terry,  et al. v. NL
Industries,  Inc., et al. (United States  District Court,  Southern  District of
Mississippi, Case No. 4:04 CV 269 PB). The plaintiffs, seven children from three
families,  sued NL and  one  landlord  alleging  strict  liability,  negligence,
fraudulent concealment and misrepresentation, and seek compensatory and punitive
damages for alleged  injuries caused by lead paint.  The plaintiffs in the Terry
case are alleged to have resided in the same housing  complex as the  plaintiffs
in the Jones case.  NL has denied all  allegations  of liability and has filed a
motion to dismiss plaintiffs' fraud claim. In August 2005, the court denied NL's
motion to strike  plaintiffs'  fraud claim for lack of  particularity,  allowing
plaintiffs to re-plead this claim.

     In  October  2005,  NL was served  with a  complaint  in Evans v.  Atlantic
Richfield  Company,  et. al.  (Circuit  Court,  Milwaukee,  Wisconsin,  Case No.
05-CV-9281).  Plaintiff, a minor, alleges injuries purportedly caused by lead on
the surfaces of the homes in which she resided. Plaintiff seeks compensatory and
punitive damages. NL has denied all allegations of liability.  In December 2005,
defendants filed a motion to dismiss the defective product damages claims.

     In December 2005, NL was served with a complaint in Hurkmans v.  Salczenko,
et al.  (Circuit  Court,  Marinette  County,  Wisconsin,  Case  No.  05-CV-418).
Plaintiff,  a minor, alleges injuries purportedly caused by lead on the surfaces
of the home in which he resided.  Plaintiff seeks compensatory  damages.  NL has
denied all liability. In February 2006, defendants filed a motion to dismiss the
defective product damages claim.

     In January  2006,  NL was served  with a complaint  in Hess,  et. al. v. NL
Industries,  Inc., et al.  (Missouri  Circuit Court 22nd Judicial  Circuit,  St.
Louis City, Cause No.  052-11799).  Plaintiffs are two minor children who allege
injuries  purportedly  caused by lead on the  surfaces of the home in which they
resided.  Plaintiffs seek compensatory and punitive damages.  NL intends to deny
all allegations of liability.

     In  addition  to  the  foregoing   litigation,   various   legislation  and
administrative  regulations  have, from time to time, been proposed that seek to
(a) impose  various  obligations  on present  and former  manufacturers  of lead
pigment and lead-based paint with respect to asserted health concerns associated
with the use of such products and (b)  effectively  overturn court  decisions in
which NL and other pigment manufacturers have been successful.  Examples of such
proposed  legislation  include  bills which would  permit  civil  liability  for
damages on the basis of market share, rather than requiring  plaintiffs to prove
that the defendant's  product caused the alleged  damage,  and bills which would
revive  actions  barred by the statute of  limitations.  While no legislation or
regulations  have been  enacted  to date that are  expected  to have a  material
adverse effect on NL's consolidated financial position, results of operations or
liquidity,  the imposition of market share liability or other  legislation could
have such an effect.

Environmental matters and litigation.

     General.  The Company's  operations  are governed by various  environmental
laws and  regulations.  Certain of the  Company's  businesses  are and have been
engaged in the handling,  manufacture or use of substances or compounds that may
be considered toxic or hazardous within the meaning of applicable  environmental
laws and  regulations.  As with other companies  engaged in similar  businesses,
certain  past and  current  operations  and  products  of the  Company  have the
potential to cause  environmental  or other damage.  The Company has implemented
and  continues  to  implement  various  policies  and  programs  in an effort to
minimize  these  risks.  The  Company's  policy is to maintain  compliance  with
applicable environmental laws and regulations at all of its plants and to strive
to improve  environmental  performance.  From time to time,  the  Company may be
subject to environmental regulatory enforcement under U.S. and foreign statutes,
resolution of which typically involves the establishment of compliance programs.
It is  possible  that future  developments,  such as  stricter  requirements  of
environmental laws and enforcement policies  thereunder,  could adversely affect
the  Company's  production,  handling,  use,  storage,  transportation,  sale or
disposal  of such  substances.  The  Company  believes  all of its plants are in
substantial compliance with applicable environmental laws.

     Certain  properties and facilities used in the Company's former businesses,
including  divested  primary  and  secondary  lead  smelters  and former  mining
locations of NL, are the subject of civil litigation, administrative proceedings
or  investigations   arising  under  federal  and  state   environmental   laws.
Additionally,  in connection with past disposal practices,  the Company has been
named as a defendant, potentially responsible party ("PRP") or both, pursuant to
the  Comprehensive  Environmental  Response,  Compensation and Liability Act, as
amended by the Superfund  Amendments and  Reauthorization  Act  ("CERCLA"),  and
similar state laws in various  governmental and private actions  associated with
waste disposal sites, mining locations,  and facilities  currently or previously
owned,  operated  or  used  by  the  Company  or  its  subsidiaries,   or  their
predecessors,  certain  of  which  are  on the  U.S.  EPA's  Superfund  National
Priorities List or similar state lists.  These  proceedings  seek cleanup costs,
damages for  personal  injury or property  damage  and/or  damages for injury to
natural resources.  Certain of these proceedings  involve claims for substantial
amounts.  Although  the  Company may be jointly  and  severally  liable for such
costs,  in most cases it is only one of a number of PRPs who may also be jointly
and severally liable.

     Environmental obligations are difficult to assess and estimate for numerous
reasons including the complexity and differing  interpretations  of governmental
regulations,  the number of PRPs and the PRPs'  ability or  willingness  to fund
such  allocation of costs,  their financial  capabilities  and the allocation of
costs among PRPs,  the  solvency of other  PRPs,  the  multiplicity  of possible
solutions,  and the years of  investigatory,  remedial and  monitoring  activity
required.   In  addition,   the  imposition  of  more  stringent   standards  or
requirements  under  environmental  laws or  regulations,  new  developments  or
changes  respecting  site cleanup  costs or allocation of such costs among PRPs,
solvency of other PRPs,  the results of future  testing and analysis  undertaken
with respect to certain sites or a determination that the Company is potentially
responsible for the release of hazardous substances at other sites, could result
in  expenditures in excess of amounts  currently  estimated by the Company to be
required for such matters. In addition,  with respect to other PRPs and the fact
that the Company may be jointly and severally  liable for the total  remediation
cost at certain  sites,  the Company  could  ultimately be liable for amounts in
excess of its accruals due to, among other things,  reallocation  of costs among
PRPs or the  insolvency  of one or more  PRPs.  No  assurance  can be given that
actual costs will not exceed  accrued  amounts or the upper end of the range for
sites for which  estimates  have been made,  and no assurance  can be given that
costs  will not be  incurred  with  respect  to  sites  as to which no  estimate
presently  can be made.  Further,  there  can be no  assurance  that  additional
environmental matters will not arise in the future. If any such future liability
were to be incurred,  it could have a material  adverse  effect on the Company's
consolidated financial statements, results of operations and liquidity.

     The  Company  records  liabilities  related  to  environmental  remediation
obligations  when  estimated  future  expenditures  are probable and  reasonably
estimable.  Such accruals are adjusted as further  information becomes available
or  circumstances  change.  Estimated  future  expenditures  are  generally  not
discounted to their present value.  Recoveries of  remediation  costs from other
parties, if any, are recognized as assets when their receipt is deemed probable.
At December 31, 2005, no receivables for such recoveries have been recognized.

     The exact time frame over which the Company makes  payments with respect to
its accrued  environmental  costs is unknown and is dependent upon,  among other
things,  the timing of the actual  remediation  process which in part depends on
factors  outside the control of the  Company.  At each balance  sheet date,  the
Company makes an estimate of the amount of its accrued environmental costs which
will be paid out over the subsequent 12 months,  and the Company classifies such
amount as a current liability.  The remainder of the accrued environmental costs
is classified as a noncurrent liability.

     NL.  Certain  properties  and  facilities  used  in  the  Company's  former
operations,  including  divested  primary and secondary lead smelters and former
mining  locations,   are  the  subject  of  civil   litigation,   administrative
proceedings  or  investigations  arising under  federal and state  environmental
laws. Additionally,  in connection with past disposal practices, the Company has
been named as a defendant,  PRP, or both,  pursuant to CERCLA, and similar state
laws in approximately 60 governmental and private actions  associated with waste
disposal sites,  mining locations and facilities  currently or previously owned,
operated or used by the  Company,  or its  subsidiaries  or their  predecessors,
certain of which are on the U.S. EPA's  Superfund  National  Priorities  List or
similar state lists. These proceedings seek cleanup costs,  damages for personal
injury or  property  damage  and/or  damages  for injury to  natural  resources.
Certain of these proceedings  involve claims for substantial  amounts.  Although
the Company may be jointly and severally  liable for such costs,  in most cases,
it is only one of a number of PRPs who may also be jointly and severally liable.
In  addition,  the Company is a party to a number of  lawsuits  filed in various
jurisdictions alleging CERCLA or other environmental claims.

     On a quarterly  basis,  the Company  evaluates the  potential  range of its
liability  at sites  where it has been  named as a PRP or  defendant,  including
sites for which the Company's wholly-owned  environmental management subsidiary,
NL Environmental  Management  Services,  Inc. ("EMS") has contractually  assumed
NL's  obligation.  See  Note 19 to the  Consolidated  Financial  Statements.  At
December 31, 2005,  the Company had accrued $55 million for those  environmental
matters  which the  Company  believes  are  reasonably  estimable.  The  Company
believes it is not  possible to estimate  the range of costs for certain  sites.
The upper end of the range of reasonably possible costs to the Company for sites
for which the Company believes it is possible to estimate costs is approximately
$80  million.  The  Company's  estimates  of  such  liabilities  have  not  been
discounted to present value.

     At  December  31,  2005,  there  are  approximately  20 sites for which the
Company  is  currently  unable to  estimate a range of costs.  For these  sites,
generally the investigation is in the early stages,  and it is either unknown as
to whether or not the Company  actually had any association with the site, or if
the Company had an association with the site, the nature of its  responsibility,
if any, for the contamination at the site and the extent of  contamination.  The
timing on when  information  would become  available to the Company to allow the
Company to estimate a range of loss is unknown and  dependent on events  outside
the control of the Company,  such as when the party alleging  liability provides
information to the Company.  On certain of these sites that had previously  been
inactive,  NL has received general and special notices of liability from the EPA
alleging  that NL, along with other PRPs, is liable for past and future costs of
remediating  environmental  contamination  allegedly caused by former operations
conducted  at such sites.  These  notifications  may assert that NL,  along with
other PRPs,  is liable for past  clean-up  costs that could be material to NL if
liability for such amounts ultimately were determined against NL.

     In January  2003, NL received a general  notice of liability  from the U.S.
EPA regarding the site of a formerly  owned lead  smelting  facility  located in
Collinsville,  Illinois. The U.S. EPA alleged the site contained elevated levels
of lead. In July 2004, NL and the U.S. EPA entered into an administrative  order
on consent to perform a removal  action with respect to  residential  properties
located  at the site.  NL has  complied  with the  order  and has  substantially
completed the clean-up work  associated  with the order.  NL anticipates it will
undertake to perform an additional  removal action with respect to ponds located
within the residential area.

     In December  2003,  NL was served with a complaint  in The Quapaw  Tribe of
Oklahoma et al. v. ASARCO  Incorporated  et al. (United States  District  Court,
Northern District of Oklahoma, Case No.  03-CII-846H(J)).  The complaint alleges
public nuisance, private nuisance, trespass, unjust enrichment, strict liability
and deceit by false  representation  against NL and six other  mining  companies
with respect to former  operations in the Tar Creek mining district in Oklahoma.
The  complaint  seeks class  action  status for former and current  owners,  and
possessors of real property located within the Quapaw  Reservation.  Among other
things, the complaint seeks actual and punitive damages from the defendants.  NL
has  moved  to  dismiss  the  complaint  and  has  denied  all  of   plaintiffs'
allegations.  In April 2004, plaintiffs filed an amended complaint adding claims
under CERCLA and RCRA,  and NL moved to dismiss those claims.  In June 2004, the
court dismissed  plaintiffs'  claims for unjust  enrichment and fraud as well as
one of the RCRA claims. In September 2004, the court stayed the case, pending an
appeal by the tribe related to sovereign  immunity issues. In February 2006, the
court of appeals affirmed the trial court's ruling that plaintiffs  waived their
sovereign immunity to defendants' counter claim for contribution and indemnity.

     In February 2004, NL was served in Evans v. ASARCO (United States  District
Court, Northern District of Oklahoma, Case No. 04-CV-94EA(M)), a purported class
action  on behalf  of two  classes  of  persons  living  in the town of  Quapaw,
Oklahoma:  (1) a medical  monitoring class of persons who have lived in the area
since  1994,  and (2) a property  owner  class of  residential,  commercial  and
government property owners.  Four individuals are named as plaintiffs,  together
with the mayor of the town of Quapaw,  Oklahoma, and the School Board of Quapaw,
Oklahoma.  Plaintiffs  allege  causes of action in  nuisance  and seek a medical
monitoring program, a relocation program, property damages and punitive damages.
NL answered the complaint and denied all of plaintiffs'  allegations.  The trial
court subsequently  stayed all proceedings in this case pending the outcome of a
class  certification  decision in another case that had been pending in the same
U.S. District Court, a case from which NL has been dismissed with prejudice.

     In January 2006, NL was served in Brown et. al. v. NL Industries,  Inc. et.
al. (Circuit Court Wayne County,  Michigan,  Case No. 06-602096 CZ), a purported
class action on behalf of a class of property  owners living in the Krainz Woods
Neighborhood of Wayne County,  Michigan.  Plaintiffs  allege causes of action in
negligence,  nuisance,  trespass and under the Michigan  Natural  Resources  and
Environmental  Protection Act with respect to a lead smelting  facility formerly
operated by NL and another defendant. Plaintiffs seek property damages, personal
injury damages, loss of income and medical expense and medical monitoring costs.
In February  2006, NL filed a petition to remove the case to federal  court.  NL
intends to deny all allegations of liability.

     See also Item 1. "Business - Regulatory and Environmental  Matters and Note
19 to the Consolidated Financial Statements."

Insurance coverage claims.

     In October  2005 NL was  served  with a  complaint  in  OneBeacon  American
Insurance Company v. NL Industries, Inc., et. al. (Supreme Court of the State of
New York,  County of New York,  Index No.  603429-05).  The plaintiff,  a former
insurance carrier,  seeks a declaratory  judgment of its obligations to NL under
insurance  policies issued to NL by the plaintiff's  predecessor with respect to
certain lead pigment lawsuits. NL filed a motion to dismiss the New York action.
NL has filed an action  against  OneBeacon  and certain  other former  insurance
companies, captioned NL Industries, Inc. v. OneBeacon America Insurance Company,
et. al. (District Court for Dallas County,  Texas, Case No. 05-11347)  asserting
that OneBeacon has breached its obligations to NL under such insurance  policies
and seeking a declaratory  judgment of OneBeacon's  obligations to NL under such
policies.  Certain of the former  insurance  companies  have filed a petition to
remove the Texas action to federal court.

     In February 2006, NL was served with a complaint in Certain Underwriters at
Lloyds, London v. Millennium Holdings LLC et. Al. (Supreme Court of the State of
New York,  County of New York,  Index No.  06/60026).  The  plaintiff,  a former
insurance  carrier of NL, seeks a  declaratory  judgment of its  obligations  to
defendants  under  insurance  policies  issued to defendants  by plaintiff  with
respect to certain lead pigment lawsuits.

     NL has reached an agreement with a former  insurance  carrier in which such
carrier  would  reimburse  NL for a portion of its past and future lead  pigment
litigation  defense costs,  although the amount that NL will ultimately  recover
from such carrier with respect to such defense  costs  incurred by NL is not yet
determinable. In addition, during 2005, NL recognized $2.2 million of recoveries
from certain  insolvent former insurance  carriers relating to the settlement of
excess  insurance  claims  that  were  paid to NL.  While NL  continues  to seek
additional  insurance  recoveries,  there  can be no  assurance  that NL will be
successful in obtaining reimbursement for either defense costs or indemnity. Any
such additional  insurance  recoveries would be recognized when their receipt is
deemed probable and the amount is determinable.

     The issue of whether  insurance  coverage for defense costs or indemnity or
both will be found to exist  for NL's lead  pigment  litigation  depends  upon a
variety of factors,  and there can be no assurance that such insurance  coverage
will be available.  NL has not considered any potential insurance recoveries for
lead  pigment  or  environmental   litigation  matters  in  determining  related
accruals.

     NL has settled insurance  coverage claims concerning  environmental  claims
with certain of its principal  former  carriers.  A portion of the proceeds from
these  settlements were placed into special purpose trusts,  as discussed below.
No further material settlements  relating to environmental  remediation coverage
are expected.

     At December 31, 2004,  NL had $19 million in  restricted  cash,  restricted
cash  equivalents  and restricted  marketable  debt  securities  held by special
purpose trusts,  the assets of which can only be used to pay for certain of NL's
future environmental  remediation and other environmental  expenditures.  Use of
such  restricted  balances does not affect the Company's  consolidated  net cash
flows. All of such $19 million was so used by NL during 2005.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

     No matters were submitted to a vote of security  holders during the quarter
ended December 31, 2005.

                                     PART II


ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS

     NL's  common  stock is listed  and  traded on the New York  Stock  Exchange
(symbol: NL). As of February 28, 2006, there were approximately 4,100 holders of
record of NL common  stock.  The  following  table  sets  forth the high and low
closing per share sales  prices for NL common  stock for the periods  indicated,
according to Bloomberg, and cash dividends paid during such periods. On February
28, 2006 the closing  price of NL common stock  according to the NYSE  Composite
Tape was $13.19.


                                                                        Regular
                                                                       dividends
                                               High        Low            paid *
                                               ----        ---         ---------

 Year ended December 31, 2004

                                                               
   First Quarter                              $15.25      $12.05        $ .20
   Second Quarter                              15.15       11.00          .20
   Third Quarter                               19.47       12.32          .20
   Fourth Quarter                              23.10       18.78          .20


 Year ended December 31, 2005

   First Quarter                              $23.27      $19.17        $ .25
   Second Quarter                              22.56       14.70          .25
   Third Quarter                               19.64       12.78          .25
   Fourth Quarter                              18.59       13.83          .25

__________________________

*    In 2004, the Company paid four quarterly  dividends of $.20 per share using
     shares of Kronos common stock in the form of pro-rata dividends,  valued as
     of the respective dividend  declaration dates.  Dividends paid in 2005 were
     cash  dividends  except for the first quarter of 2005 when the Company paid
     dividends of $.25 per share using shares of Kronos common stock in the form
     of pro rata dividends, valued as of the dividend declaration date. See Note
     2 to the Consolidated Financial Statements.

     On March 15, 2006,  the  Company's  Board of  Directors  declared a regular
quarterly cash dividend of $.125 per share to stockholders of record as of March
27, 2006 to be paid on March 31, 2006.  However,  the declaration and payment of
future dividends, and the amount thereof, is discretionary and is dependent upon
the Company's results of operations,  financial condition, cash requirements for
its businesses,  contractual  restrictions  and other factors deemed relevant by
the Company's Board of Directors. The amount and timing of past dividends is not
necessarily  indicative  of the amount or timing of any future  dividends  which
might be paid. There are currently no contractual  restrictions on the amount of
NL dividends which may be paid.

ITEM 6. SELECTED FINANCIAL DATA

     The following  selected  financial data should be read in conjunction  with
the  Company's  Consolidated  Financial  Statements  and Item 7 -  "Management's
Discussion and Analysis of Financial Condition and Results of Operations."





                                                                       Years ended December 31,
                                                    ------------------------------------------------------------
                                                    2001         2002          2003           2004          2005
                                                    ----         ----          ----           ----          ----
                                                                (In millions, except per share data)

 STATEMENTS OF OPERATIONS DATA:
   Net sales:
                                                                                      
     Chemicals (1)                               $  835.1     $  875.2       $1,008.2      $  559.1     $     -
     Component products                             179.7        166.7          173.9         182.6        186.4
                                                 --------     --------       --------      --------     --------

                                                 $1,014.8     $1,041.9       $1,182.1      $  741.7     $  186.4
                                                 ========     ========       ========      ========     ========

   Segment profit:
     Chemicals (1)                               $  169.2     $   96.5       $  137.4      $   66.4     $     -
     Component products                              15.7          4.4            9.0          16.3         19.3
                                                 --------     --------       --------      --------     --------

                                                 $  184.9     $  100.9       $  146.4      $   82.7     $   19.3
                                                 ========     ========       ========      ========     ========

   Equity in earnings of Kronos (1)              $     -      $     -        $     -       $    9.6     $   25.5
                                                 ========     ========       ========      ========     ========

   Income (loss) from continuing
    operations                                   $  138.0     $   39.1       $  (18.3)     $  159.3     $   33.2
   Discontinued operations                           (1.1)         (.2)          (2.9)          3.5          (.3)
                                                 --------     --------       --------      --------     --------

     Net income (loss)                           $  136.9     $   38.9       $  (21.2)     $  162.8     $   32.9
                                                 ========     ========       ========      ========     ========

 DILUTED EARNINGS PER SHARE DATA:
   Income (loss) from continuing
    operations                                   $   2.77     $    .80       $   (.38)     $   3.29     $    .68
   Discontinued operations                           (.02)         -             (.06)          .07          -
                                                 --------     --------       --------      --------     --------

     Net income (loss)                           $   2.75     $    .80       $   (.44)     $   3.36     $    .68
                                                 ========     ========       ========      ========     ========

   Dividends per share (2)                       $    .80     $   3.30       $    .80      $    .80     $   1.00
                                                 ========     ========       ========      ========     ========

  Weighted average common shares
   outstanding                                     49,856        48,612        47,795        48,419       48,587

BALANCE SHEET DATA (at year end):
  Total assets                                    $1,377.9     $1,315.6      $1,476.5      $  551.6     $  484.7
  Long-term debt                                     244.5        355.6         382.5            .1          1.4
  Stockholders' equity                               485.0        362.9         127.5         233.6        219.7

STATEMENT OF CASH FLOW DATA:
  Net cash provided (used) by:
    Operating activities                          $  157.1     $  114.7      $  114.9      $   92.7     $   (5.3)
    Investing activities                             (59.9)       (39.9)        (27.4)         34.5         18.5
    Financing activities                             (77.3)      (157.6)         13.8          98.6        (22.7)


(1)  The Company ceased to  consolidate  the chemicals  operations  conducted by
     Kronos  effective  July 1, 2004,  at which time the  Company  commenced  to
     account for its interest in Kronos by the equity method.  See Note 2 to the
     Consolidated Financial Statements.

2)   Excludes the  distribution  of shares of Kronos common stock at December 8,
     2003. Amounts paid in 2000, 2001, 2002 and 2003 were cash dividends,  while
     amounts  paid in 2004 and the  first  quarter  of 2005  were in the form of
     shares of Kronos common  stock.  See Note 2 to the  Consolidated  Financial
     Statements and Item 5 - "Market For Registrant's  Common Equity and Related
     Stockholder Matters."



ITEM 7. MANAGEMENT'S  DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS

RESULTS OF OPERATIONS

Summary

     As  discussed  in  Note  1 to the  Consolidated  Financial  Statements,  on
September  24, 2004,  the Company  purchased  10,374,000  shares of CompX common
stock  from  Valhi  and  a  wholly-owned   subsidiary  of  Valhi,   representing
approximately  68% of the  outstanding  shares of CompX  common  stock.  Because
Valhi,  NL and CompX are all entities under the common  control of Contran,  the
Company's acquisition of the shares of CompX common stock results in a change in
reporting  entity and the Company has  retroactively  restated its  consolidated
financial  statements  to reflect  the  consolidation  of CompX for all  periods
presented.

     Also as  discussed  in  Note 1 to the  Consolidated  Financial  Statements,
following  the  Company's  July  2004  dividend  in the form of shares of Kronos
common stock distributed to NL shareholders,  the Company's  ownership of Kronos
was reduced to less than 50%.  Consequently,  effective July 1, 2004 the Company
ceased to consolidate Kronos' financial position, results of operations and cash
flows and the Company  commenced  accounting  for its  interest in Kronos by the
equity  method.  The  Company  continues  to  report  Kronos  as a  consolidated
subsidiary through June 30, 2004, including the consolidation of Kronos' results
of  operations  and  cash  flows  for  the  first  two  quarters  of  2004.  The
deconsolidation of Kronos effective July 1, 2004 has a significant effect on the
comparability of the Company's consolidated financial statements.

     The Company reported income from continuing operations of $33.2 million, or
$.68 per diluted share, in 2005 compared to income from continuing operations of
$159.3 million,  or $3.29 per diluted share in 2004 and a loss of $18.3 million,
or ($.38) per diluted share, in 2003.

     The decrease in the Company's  diluted earnings per share from 2004 to 2005
is due  primarily to the net effects of (i) higher  component  products  segment
profit,  (ii) higher earnings  attributable to Kronos' income from operations in
2005, (iii) security  transaction gains from the sale of shares of Kronos common
stock in 2005 and (iv)  significant  second  quarter  2004  non-cash  income tax
benefits  related  to Kronos  and NL.  The  increase  in the  Company's  diluted
earnings per share from 2003 to 2004 is due  primarily to the net effects of (i)
lower chemicals segment profit,  (ii) higher component  products segment profit,
(iii)  lower   environmental   remediation  and  legal  expenses  and  (iv)  the
significant second quarter 2004 income tax benefits.

     Income from  continuing  operations in 2005 includes (i) income  related to
NL's sales of Kronos  common  stock in market  transactions  of $.17 per diluted
share, (ii) income from Kronos' second quarter sale of its passive interest in a
Norwegian  smelting  operation of $.03 per diluted  share,  (iii) a net non-cash
income tax expense of $.03 per diluted share related to the aggregate effects of
recent developments with respect to certain non-U.S. income tax audits of Kronos
(principally in Germany,  Belgium and Canada) and (iv) a net non-cash income tax
expense of $.02 per diluted  share  related to the  aggregate  effects of recent
developments  with respect to certain U.S.  income tax audits of NL and a change
in CompX's permanent  reinvestment  conclusion regarding certain of its non-U.S.
subsidiaries.

     Income from  continuing  operations in 2004  includes (i) a second  quarter
income tax benefit related to the reversal of Kronos'  deferred income tax asset
valuation allowance in Germany of $2.80 per diluted share, (ii) a second quarter
income tax  benefit  related to the  reversal of the  deferred  income tax asset
valuation  allowance related to EMS and the adjustment of estimated income taxes
due upon the IRS  settlement  related to EMS of $1.00 per diluted  share,  (iii)
income related to Kronos' contract dispute  settlement of $.04 per diluted share
and (iv) income  related to NL's fourth  quarter sales of Kronos common stock in
market transactions of $.03 per diluted share.

     Income  from  continuing  operations  in 2003  includes  (i) an income  tax
benefit relating to Kronos' refund of prior year German income taxes of $.51 per
diluted  share and (ii)  gains  from the  disposal  of  property  and  equipment
(principally  related to  certain  real  property  of NL)  aggregating  $.17 per
diluted share.

     Each of these items is more fully  discussed  below  and/or in the notes to
the Consolidated Financial Statements.

     The  Company  currently  believes  its net  income  in 2006  will be  lower
compared to 2005 due  primarily  to the effects of  security  transaction  gains
recognized in 2005,  as discussed  above,  and lower  earnings  attributable  to
Kronos.

Critical accounting policies and estimates

     The  accompanying   "Management's  Discussion  and  Analysis  of  Financial
Condition and Results of Operations"  are based upon the Company's  consolidated
financial  statements,  which have been prepared in accordance  with  accounting
principles  generally  accepted in the United  States of America  ("GAAP").  The
preparation of these financial statements requires the Company to make estimates
and judgments  that affect the reported  amounts of assets and  liabilities  and
disclosure of  contingent  assets and  liabilities  at the date of the financial
statements, and the reported amount of revenues and expenses during the reported
period.  On an ongoing basis,  the Company  evaluates its  estimates,  including
those related to bad debts,  inventory  reserves,  impairments of investments in
marketable  securities and investments  accounted for by the equity method,  the
recoverability  of  other  long-lived  assets  (including   goodwill  and  other
intangible assets),  pension and other  post-retirement  benefit obligations and
the  underlying  actuarial  assumptions  related  thereto,  the  realization  of
deferred  income  tax  assets  and  accruals  for   environmental   remediation,
litigation, income tax and other contingencies.  The Company bases its estimates
on historical experience and on various other assumptions that it believes to be
reasonable  under the  circumstances,  the  results  of which form the basis for
making judgments about the reported amounts of assets, liabilities, revenues and
expenses.  Actual  results may differ from  previously-estimated  amounts  under
different assumptions or conditions.

     The Company believes the following critical  accounting policies affect its
more  significant  judgments  and  estimates  used  in  the  preparation  of its
consolidated financial statements:

o    The Company maintains allowances for doubtful accounts for estimated losses
     resulting from the inability of its customers to make required payments and
     other factors.  The Company takes into  consideration the current financial
     condition  of its  customers,  the age of the  outstanding  balance and the
     current economic  environment when assessing the adequacy of the allowance.
     If the financial  condition of the Company's customers were to deteriorate,
     resulting in an impairment of their  ability to make  payments,  additional
     allowances  may be  required.  During 2003,  2004 and 2005,  the net amount
     written off against the allowance for doubtful  accounts as a percentage of
     the balance of the allowance  for doubtful  accounts as of the beginning of
     the year ranged from 2% to 16%.

o    The Company  provides  reserves  for  estimated  obsolete  or  unmarketable
     inventories  equal to the difference  between the cost of inventory and the
     estimated net realizable  value using  assumptions  about future demand for
     its products and market  conditions.  If actual market  conditions are less
     favorable than those projected by management, additional inventory reserves
     may be required.

o    The Company owns  investments  in certain  companies that are accounted for
     either as  marketable  securities  carried at fair value or  accounted  for
     under the equity method.  For all of such investments,  the Company records
     an  impairment  charge when it believes an  investment  has  experienced  a
     decline in fair value below its cost basis (for  marketable  securities) or
     below its carrying value (for equity method  investees)  that is other than
     temporary.  Future adverse  changes in market  conditions or poor operating
     results of underlying investments could result in losses or an inability to
     recover the carrying value of the investments  that may not be reflected in
     an investment's  current  carrying  value,  thereby  possibly  requiring an
     impairment charge in the future.

     At December 31, 2005, the carrying value of all of the Company's marketable
     securities  exceeded  the  cost  basis  of each of such  investments.  With
     respect to the Company's  investment in Valhi,  which  comprised all of the
     Company's  marketable  equity  securities  at December 31, 2005,  the $87.1
     million  carrying value of such investment  exceeded its $34.6 million cost
     basis by about 151%.  At December  31,  2005,  the $29.01 per share  quoted
     market price of the  Company's  investment  in Kronos (the  Company's  only
     equity method investee)  exceeded its per share net carrying value by about
     244%.

o    The Company  recognizes an impairment charge associated with its long-lived
     assets,  including  property and equipment,  goodwill and other  intangible
     assets,  whenever it determines that recovery of such  long-lived  asset is
     not probable.  Such determination is made in accordance with the applicable
     GAAP requirements  associated with the long-lived asset, and is based upon,
     among other things,  estimates of the amount of future net cash flows to be
     generated by the  long-lived  asset and estimates of the current fair value
     of the asset. Adverse changes in such estimates of future net cash flows or
     estimates  of fair  value  could  result in an  inability  to  recover  the
     carrying  value of the  long-lived  asset,  thereby  possibly  requiring an
     impairment charge to be recognized in the future.

     Under  applicable  GAAP (SFAS No. 144,  "Accounting  for the  Impairment or
     Disposal of Long-Lived Assets"), property and equipment is not assessed for
     impairment unless certain impairment  indicators,  as defined, are present.
     During 2005, no such impairment indicators, as defined, were present.

     Under  applicable  GAAP  (SFAS No.  142,  "Goodwill  and  other  Intangible
     Assets"), goodwill is required to be reviewed for impairment at least on an
     annual basis.  Goodwill will also be reviewed for impairment at other times
     during each year when impairment  indicators,  as defined,  are present. At
     December  31,  2005,  goodwill   attributable  to  the  component  products
     operating segment was assigned to two reporting units within that operating
     segment,  one consisting of CompX's  security  products  operations and one
     consisting  of CompX's  Michigan,  Canadian and Taiwanese  operations.  The
     estimated fair values of the two CompX reporting units are determined based
     on discounted cash flow  projections.  Significant  judgment is required in
     estimating the discounted  cash flows for the CompX reporting  units.  Such
     estimated  cash  flows  are  inherently  uncertain,  and  there  can  be no
     assurance  that CompX will  achieve the future cash flows  reflected in its
     projections.  No goodwill impairments related to continuing operations were
     deemed  to exist as a result  of the  Company's  annual  impairment  review
     completed  during the third quarter of 2005, as the estimated fair value of
     each such  reporting unit exceeded the net carrying value of the respective
     reporting  unit.  The  Company's  goodwill  also relates to an  acquisition
     completed prior to 2003. See Notes 8 and 24 to the  Consolidated  Financial
     Statements.

     As  discussed  in  Note 8 to the  Consolidated  Financial  Statements,  the
     Company  recognized  a $6.5  million  goodwill  impairment  with respect to
     CompX's  European  operations  in the  fourth  quarter  of 2004,  following
     CompX's  decision  to  dispose  of  those  assets.  The  disposal  of  such
     operations  was  completed in January  2005,  and  therefore the Company no
     longer reports any goodwill  attributable to such operation at December 31,
     2005.

o    The  Company   maintains   various   defined   benefit  pension  plans  and
     postretirement   benefits  other  than  pensions   ("OPEB").   The  amounts
     recognized as defined benefit  pension and OPEB expenses,  and the reported
     amounts of prepaid and accrued  pension  costs and accrued OPEB costs,  are
     actuarially  determined based on several  assumptions,  including  discount
     rates,  expected  rates of returns on plan assets and expected  health care
     trend rates.  Variances from these actuarially assumed rates will result in
     increases or decreases,  as applicable,  in the recognized pension and OPEB
     obligations,  pension and OPEB  expenses  and funding  requirements.  These
     assumptions are more fully described below under  " Assumptions  on defined
     benefit pension plans and OPEB plans."

o    The Company records a valuation allowance to reduce its deferred income tax
     assets to the amount that is  realizable  under the  "more-likely-than-not"
     recognition  criteria.  While the Company  has  considered  future  taxable
     income  and  ongoing  prudent  and  feasible  tax  planning  strategies  in
     assessing  the need for a valuation  allowance,  it is possible that in the
     future the  Company may change its  estimate of the amount of the  deferred
     income tax assets  that would  "more-likely-than-not"  be  realized  in the
     future,  resulting  in an  adjustment  to the  deferred  income  tax  asset
     valuation allowance that would either increase or decrease,  as applicable,
     reported net income in the period such change in estimate was made.

     In addition,  the Company makes an evaluation at the end of each  reporting
     period as to whether or not some or all of the  undistributed  earnings  of
     its  foreign  subsidiaries  are  permanently  reinvested  (as that  term is
     defined in GAAP).  While the  Company may have  concluded  in the past that
     some of such undistributed earnings are permanently  reinvested,  facts and
     circumstances can change in the future, and it is possible that a change in
     facts and circumstances,  such as a change in the expectation regarding the
     capital  needs of its foreign  subsidiaries,  could  result in a conclusion
     that some or all of such  undistributed  earnings are no longer permanently
     reinvested.  In such an event, the Company would be required to recognize a
     deferred  income  tax  liability  in  an  amount  equal  to  the  estimated
     incremental  U.S.  income tax and  withholding  tax liability that would be
     generated  if  all of  such  previously-considered  permanently  reinvested
     undistributed  earnings were distributed to the U.S. In this regard, during
     2005 CompX  determined  that certain of the  undistributed  earnings of its
     non-U.S.  operations could no longer be considered permanently  reinvested,
     and in  accordance  with GAAP CompX  recognized  an aggregate  $9.0 million
     provision for deferred income taxes on such  undistributed  earnings of its
     foreign subsidiaries. See Note 15 to the Consolidated Financial Statements.

o    The Company records accruals for environmental, legal, income tax and other
     contingencies and commitments when estimated future expenditures associated
     with such contingencies become probable,  and the amounts can be reasonably
     estimated.  However, new information may become available, or circumstances
     (such as applicable laws and regulations) may change,  thereby resulting in
     an  increase  or  decrease  in the amount  required  to be accrued for such
     matters (and therefore a decrease or increase in reported net income in the
     period of such change).

     Segment  profit  for  each of the  Company's  two  operating  segments  are
impacted by certain of these significant judgments and estimates,  as summarized
below:

o    Chemicals - allowance  for  doubtful  accounts,  reserves  for  obsolete or
     unmarketable inventories,  impairment of equity method investees,  goodwill
     and other  long-lived  assets,  defined  benefit pension and OPEB plans and
     loss accruals.
o    Component products - allowance for doubtful accounts, reserves for obsolete
     or  unmarketable  inventories,  impairment  of  long-lived  assets and loss
     accruals.

     In  addition,  general  corporate  and  other  items  are  impacted  by the
significant  judgments and estimates for impairment of marketable securities and
equity method investees, defined benefit pension and OPEB plans, deferred income
tax asset valuation allowances and loss accruals.

Component products



                                          Years ended December 31,                    % Change
                                  -------------------------------------        -----------------------
                                   2003            2004            2005         2003-04       2004-05
                                   ----            ----            ----         -------       -------
                                             (In $ millions)

                                                                                   
 Net sales                       $ 173.9        $ 182.6         $ 186.4            +5%           +2%
 Segment profit                      9.0           16.3            19.3           +81%          +18%

 Segment profit margin               5%             9%             10%


     Component product sales were higher in 2005 as compared to 2004 principally
due to increases in selling prices for certain products across all product lines
to recover volatile raw material prices, sales volume associated with a business
acquired in 2005 and the net effect of fluctuations in currency  exchange rates,
which increased sales by $1.5 million,  as discussed below,  partially offset by
sales volume  decreases for certain products  resulting from Asian  competition.
During  2005,  sales of  security  products  (including  sales  of the  business
acquired in 2005)  increased  6% as compared to 2004,  while sales of  precision
slide and ergonomic products decreased 1% and 2%,  respectively.  The percentage
changes  in slide and  ergonomic  products  include  the impact  resulting  from
changes in foreign  currency  exchange  rates.  Sales of security  products  are
generally denominated in U.S. dollars.

     Component  products  sales were  higher in 2004 as  compared to 2003 due in
part to the favorable effect of fluctuations in foreign currency exchange rates,
which increased  component products sales by $2.5 million in 2004 as compared to
2003,  as  discussed  below.  Component  products  sales  comparisons  were also
impacted by  increases  in product  prices for  precision  slides and  ergonomic
products  which  were  primarily  a pass  through  of raw  material  steel  cost
increases to customers.  During 2004,  sales of slide products  increased 13% as
compared to 2003,  while sales of security  products  decreased less than 1% and
sales of ergonomic products increased 1% during the same period.

     Component  products segment profit increased in 2005 as compared to 2004 as
the favorable impact of continued  reductions in  manufacturing,  fixed overhead
and other  overhead  costs more than  offset the  negative  impact of changes in
foreign  currency  exchange rates, as discussed  below,  and higher raw material
costs.

     Component  products  segment  profit  comparisons  in 2004  were  favorably
impacted by the effect of certain cost reduction initiatives undertaken in 2003.
Component  products  segment  profit  comparisons  were also impacted by the net
effects of  increases in the cost of steel (the primary raw material for CompX's
products) and continued  reductions in  manufacturing,  fixed overhead and other
overhead costs.

     CompX has  substantial  operations  and assets  located  outside the United
States in Canada  and  Taiwan.  A portion of CompX's  sales  generated  from its
non-U.S.  operations are denominated in currencies  other than the U.S.  dollar,
principally  the  Canadian  dollar and the New Taiwan  dollar.  In  addition,  a
portion of CompX's sales generated from its non-U.S.  operations are denominated
in the U.S.  dollar.  Most raw materials,  labor and other  production costs for
such  non-U.S.   operations  are  denominated  primarily  in  local  currencies.
Consequently,  the translated  U.S.  dollar values of CompX's  foreign sales and
operating results are subject to currency  exchange rate fluctuations  which may
favorably or unfavorably  impact reported earnings and may affect  comparability
of  period-to-period  operating  results.  During 2005,  currency  exchange rate
fluctuations  positively  impacted the Company's sales  comparisons with 2004 as
discussed  above,  and negatively  impacted  component  products  segment profit
comparisons  for the same periods by  approximately  $2.0 million.  During 2004,
currency exchange rate fluctuations positively impacted component products sales
comparisons  with  2003  as  discussed  above,   while  currency  exchange  rate
fluctuations  did not  significantly  impact  component  products segment profit
comparisons for the same periods.  The positive impact on sales relates to sales
denominated in non-U.S.  dollar  currencies  translating into higher U.S. dollar
sales due to a  strengthening  of the local  currency  in  relation  to the U.S.
dollar.  The negative  impact on operating  income results from the U.S.  dollar
denominated  sales of non-U.S.  operations  converting into lower local currency
amounts due to the weakening of the U.S. dollar.  This negatively impacts margin
as it results in less local currency  generated from sales to cover the costs of
non-U.S. operations which are denominated in local currency.

     While demand has stabilized across most product segments, certain customers
continue to seek lower cost Asian sources as alternatives  to CompX's  products.
CompX believes the impact of this will be mitigated through ongoing  initiatives
to  expand  both  new  products  and new  market  opportunities.  Asian  sourced
competitive  pricing  pressures  are  expected to continue to be a challenge  as
Asian  manufacturers,  particularly  those located in China,  gain market share.
CompX's strategy in responding to the competitive  pricing pressure has included
reducing   production  cost  through  product   reengineering,   improvement  in
manufacturing processes or moving production to lower-cost facilities, including
its own Asian based  manufacturing  facilities.  CompX also has  emphasized  and
focused on  opportunities  where it can  provide  value-added  customer  support
services that Asian based  manufacturers  are generally  unable to provide.  The
combination of CompX's cost control  initiatives  together with its  value-added
approach to development  and marketing of products are believed to help mitigate
the impact of competitive pricing pressures.

     CompX will  continue to focus on cost  improvement  initiatives,  utilizing
lean  manufacturing  techniques and prudent balance sheet management in order to
minimize  the  impact  of lower  sales,  particularly  to the  office  furniture
industry,  and to develop value-added customer  relationships with an additional
focus on sales of CompX's  higher-margin  ergonomic computer support systems and
security products to improve operating results. In addition,  CompX continues to
develop  sources  for  lower  cost  components  for  certain  product  lines  to
strengthen  its  ability  to meet  competitive  pricing  when  practical.  These
actions,  along with other activities to eliminate excess capacity, are designed
to position CompX to expand more  effectively on both new product and new market
opportunities to improve CompX's profitability.

Chemicals - Kronos

     Relative  changes in Kronos' TiO2 sales and income from  operations  during
the past three years are primarily due to (i) relative changes in TiO2 sales and
production  volumes,  (ii) relative  changes in TiO2 average  selling prices and
(iii) relative  changes in foreign currency  exchange rates.  Selling prices (in
billing currencies) were generally: increasing during the first quarter of 2003,
flat during the second quarter of 2003,  decreasing  during the third and fourth
quarters of 2003 and the first quarter of 2004,  flat during the second  quarter
of 2004,  increasing  during  the last half of 2004 and  first  half of 2005 and
decreasing during the last half of 2005.

     Effective July 1, 2004 the Company ceased to consolidate  Kronos' financial
position,  results  of  operations  and cash  flows  and the  Company  commenced
accounting  for its  interest  in  Kronos  by the  equity  method.  The  Company
continues to report Kronos as a consolidated  subsidiary  through June 30, 2004,
including the  consolidation of Kronos' results of operations and cash flows for
the first two quarters of 2004.  The  following  table shows  information  about
Kronos'  sales and segment  profit for the 2003,  2004 and 2005,  including  the
periods  (the  second  half of 2004 and  2005) for  which  the  Company  did not
consolidate Kronos' results of operations.


                                 Years ended December 31,                % Change             Six months ended
                         -------------------------------------    -----------------------    ------------------
                          2003            2004            2005     2003-04       2004-05        June 30,2004
                          ----            ----            ----     -------       -------        ------------
                                    (In $ millions)


                                                                                
Net sales                $1,008.2      $1,128.6       $ 1,196.7      +12%           +6%           $559.1
Segment profit              137.4         119.6           181.5      -13%          +52%             66.4

Segment profit margin        14%           11%             15%                                      12%

TiO2 operating
   statistics:
   Average selling price
     index (1990=100)        84            82              89
     Sales volume*          462           500             478
     Production volume*     476           484             492
   Production capacity
     at beginning of
     year*                  470           480             495
   Production rate as a
     percentage of
     capacity              Full          Full              99%

  Percent change in TiO2 average selling prices:
    Using actual foreign currency exchange rates                     + 4%          + 9%
    Impact of changes in foreign exchange rates                      - 6%          - 1%
                                                                     ----          ----

                                                                     - 2%          + 8%
                                                                     ====          ====

________________________________
*    Metric tons, in thousands

     Kronos' sales  increased $68.1 million (6%) in 2005 as compared to 2004 due
primarily to the net effects of higher average TiO2 selling  prices,  lower TiO2
sales  volumes and the  favorable  effect of  fluctuations  in foreign  currency
exchange rates,  which increased sales by  approximately  $16 million as further
discussed  below.  Excluding the effect of fluctuations in the value of the U.S.
dollar  relative to other  currencies,  Kronos'  average TiO2 selling  prices in
billing  currencies  were 8% higher in 2005 as compared to 2004. When translated
from billing currencies into U.S. dollars using actual foreign currency exchange
rates  prevailing  during the respective  periods,  Kronos' average TiO2 selling
prices in 2005 increased 9% as compared to 2004.

     Kronos' sales increased $120.4 million (12%) in 2004 as compared to 2003 as
the favorable effect of fluctuations in foreign currency  exchange rates,  which
increased  chemicals  sales by  approximately  $60 million as further  discussed
below,  and higher sales  volumes  more than offset the impact of lower  average
TiO2 selling  prices.  Excluding the effect of  fluctuations in the value of the
U.S. dollar relative to other currencies, Kronos' average TiO2 selling prices in
billing  currencies  were 2% lower in 2004 as compared to 2003.  When translated
from billing currencies into U.S. dollars using actual foreign currency exchange
rates  prevailing  during the respective  periods,  Kronos' average TiO2 selling
prices in 2004 increased 4% in 2004 as compared to 2003.

     Kronos' sales are  denominated  in various  currencies,  including the U.S.
dollar,  the euro, other major European  currencies and the Canadian dollar. The
disclosure of the  percentage  change in Kronos'  average TiO2 selling prices in
billing  currencies  (which excludes the effects of fluctuations in the value of
the U.S.  dollar  relative  to other  currencies)  is  considered  a  "non-GAAP"
financial measure under regulations of the SEC. The disclosure of the percentage
change in Kronos'  average TiO2 selling  prices  using actual  foreign  currency
exchange rates prevailing  during the respective  periods is considered the most
directly  comparable  financial measure presented in accordance with GAAP ("GAAP
measure").  Kronos  discloses  percentage  changes in its average TiO2 prices in
billing  currencies  because Kronos  believes such  disclosure  provides  useful
information  to  investors  to allow them to analyze  such  changes  without the
impact of changes in  foreign  currency  exchange  rates,  thereby  facilitating
period-to-period  comparisons of the relative  changes in average selling prices
in the actual various billing currencies. Generally, when the U.S. dollar either
strengthens  or weakens  against  other  currencies,  the  percentage  change in
average  selling  prices  in  billing   currencies  will  be  higher  or  lower,
respectively,  than such percentage changes would be using actual exchange rates
prevailing during the respective  periods.  The difference between the 4% and 9%
increases  in  Kronos'  average  TiO2  selling  prices  during  2004  and  2005,
respectively,  as compared to the  respective  prior year using  actual  foreign
currency  exchange  rates  prevailing  during the  respective  periods (the GAAP
measure),  and the 2% decrease  and 8% increase in Kronos'  average TiO2 selling
prices in billing  currencies (the non-GAAP  measure) during such periods is due
to the effect of changes in foreign  currency  exchange  rates.  The above table
presents in a tabular format (i) the percentage  change in Kronos'  average TiO2
selling prices using actual foreign currency  exchange rates  prevailing  during
the respective periods (the GAAP measure), (ii) the percentage change in Kronos'
average TiO2 selling  prices in billing  currencies  (the non-GAAP  measure) and
(iii) the percentage  change due to changes in foreign  currency  exchange rates
(or the reconciling item between the non-GAAP measure and the GAAP measure).

     Kronos's  segment profit  increased $61.9 million (52%) in 2005 as compared
to 2004,  as the  effect  of higher  average  TiO2  selling  prices  and  higher
production  volumes more than offset the impact of lower sales  volumes,  higher
raw  material  and  maintenance  costs in 2005 and the $6.3  million  of  income
related to a contract dispute settlement with a customer  recognized in 2004, as
further discussed below.

     On September  22, 2005,  the  chloride-process  TiO2  facility  operated by
Kronos' 50%-owned joint venture, Louisiana Pigment Company ("LPC"),  temporarily
halted  production  due  to  Hurricane  Rita.  Although  storm  damage  to  core
processing facilities was not extensive, a variety of factors, including loss of
utilities,  limited  access and  availability  of employees  and raw  materials,
prevented the  resumption of partial  operations  until October 9, 2005 and full
operations  until late 2005.  The joint  venture  expects  the  majority  of its
property  damage  and  unabsorbed  fixed  costs  for  periods  in  which  normal
production  levels were not achieved  will be covered by  insurance,  and Kronos
believes   insurance  will  cover  its  lost  profits   (subject  to  applicable
deductibles) resulting from its share of the lost production from LPC. Insurance
proceeds  from the lost profit for product that Kronos was not able to sell as a
result of the loss of  production  from LPC,  are expected to be  recognized  by
Kronos during 2006, although the amount and timing of such insurance  recoveries
is not  presently  determinable.  The effect on Kronos'  financial  results will
depend on the timing and amount of insurance recoveries.

     Kronos' segment profit decreased $17.8 million (13%) in 2004 as compared to
2003, as the effect of lower average TiO2 selling prices and higher raw material
and maintenance costs more than offset the impact of higher sales and production
volumes and income from the contract dispute settlement.  Kronos' segment profit
increased  $40.9  million (42%) in 2003 compared to 2002 due primarily to higher
average TiO2 selling prices and higher TiO2 sales and production volumes.

     Chemicals segment profit in 2004 includes $6.3 million of income related to
the settlement of a contract dispute with a customer. As part of the settlement,
the customer  agreed to make payments to Kronos  through 2007  aggregating  $7.3
million.  The $6.3 million gain  recognized  represents the present value of the
future  payments  to be paid by the  customer to Kronos.  The  dispute  with the
customer  concerned the customer's alleged past failure to purchase the required
amount  of TiO2  from  Kronos  under  the  terms of  Kronos'  contract  with the
customer. See Note 18 to the Consolidated Financial Statements.

     Kronos'  TiO2 sales  volumes in 2005  decreased  4% compared to 2004,  with
volumes  lower in all  regions of the world.  Approximately  one-half of Kronos'
2005 TiO2 sales  volumes  were  attributable  to  markets  in  Europe,  with 38%
attributable  to North  America  and the  balance  to  export  markets.  Overall
worldwide demand for TiO2 in 2005 is estimated to have declined by approximately
5% from the  exceptionally  strong demand levels in 2004.  Kronos attributes the
decline in overall sales and its own sales to slower overall  economic growth in
2005  and  inventory  destocking  by  its  customers.   Kronos'  segment  profit
comparisons were favorably impacted by higher production levels, which increased
2%. Kronos' operating rates were near full capacity in both periods, and Kronos'
production  volumes in 2005 set a new record  for  Kronos,  which was the fourth
consecutive year record production volumes were achieved.

     Kronos' TiO2 sales volumes in 2004 increased 8% compared to 2003, as higher
volumes in European and export markets more than offset lower volumes in Canada.
Approximately  one-half of Kronos' 2004 TiO2 sales volumes were  attributable to
markets in Europe,  with 38%  attributable  to North  America and the balance to
export  markets.  Demand for TiO2 remained  strong  throughout  2004,  and while
Kronos  believes that the strong demand is largely  attributable  to the end-use
demand of its  customers,  it is possible that some portion of the strong demand
resulted from customers  increasing their inventory levels of TiO2 in advance of
implementation  of announced or anticipated  price  increases.  Kronos'  segment
profit  comparisons were also favorably  impacted by higher  production  levels,
which  increased  2%.  Kronos'  operating  rates were near full capacity in both
periods,  and Kronos' sales and production volumes in 2004 were both new records
for Kronos.

     Kronos has  substantial  operations and assets  located  outside the United
States (primarily in Germany,  Belgium, Norway and Canada). A significant amount
of Kronos' sales  generated  from its non-U.S.  operations  are  denominated  in
currencies  other  than the U.S.  dollar,  principally  the  euro,  other  major
European  currencies  and the  Canadian  dollar.  A  portion  of  Kronos'  sales
generated  from its non-U.S.  operations  are  denominated  in the U.S.  dollar.
Certain raw materials,  primarily titanium-containing  feedstocks, are purchased
in U.S.  dollars,  while  labor  and  other  production  costs  are  denominated
primarily in local currencies. Consequently, the translated U.S. dollar value of
Kronos'  foreign  sales and operating  results are subject to currency  exchange
rate fluctuations  which may favorably or adversely impact reported earnings and
may affect the comparability of  period-to-period  operating  results.  Overall,
fluctuations  in the  value of the U.S.  dollar  relative  to other  currencies,
primarily the euro, increased Kronos' TiO2 sales by a net $16 million in 2005 as
compared to 2004 and  increased  Kronos' TiO2 sales by a net $60 million in 2004
as compared to 2003.  Fluctuations  in the value of the U.S.  dollar relative to
other  currencies   similarly  impacted  Kronos'  foreign   currency-denominated
operating expenses. Kronos' operating costs that are not denominated in the U.S.
dollar, when translated into U.S. dollars, were higher in 2005 and 2004 compared
to the same periods of the respective prior years.  Overall,  currency  exchange
rate  fluctuations  resulted in a net  increase of $6 million in Kronos'  income
from  operations  in each of 2004 and 2005 as compared to the  respective  prior
year.

     Kronos  expects its income from  operations in 2006 will be somewhat  lower
than 2005, as the favorable effect of anticipated  modest  improvements in sales
volumes and average TiO2  selling  prices are expected to be more than offset by
the effect of higher  production  costs,  particularly  raw  material and energy
costs.  Kronos'  expectations as to the future  prospects of Kronos and the TiO2
industry are based upon a number of factors  beyond Kronos'  control,  including
worldwide  growth of gross domestic  product,  competition  in the  marketplace,
unexpected  or   earlier-than-expected   capacity  additions  and  technological
advances.  If actual  developments  differ from  Kronos'  expectations,  Kronos'
results of operations could be unfavorably affected.

     Kronos' efforts to debottleneck its production facilities to meet long-term
demand continue to prove  successful.  Such  debottlenecking  efforts  included,
among other things,  the addition of finishing  capacity in the German  facility
and  equipment  upgrades  and  enhancements  in several  locations  to allow for
reduced downtime for maintenance  activities.  Kronos'  production  capacity has
increased by  approximately  30% over the past ten years due to  debottlenecking
programs,  with only moderate capital  expenditures.  Kronos believes its annual
attainable  production  capacity for 2006 is approximately  510,000 metric tons,
with some slight  additional  capacity  expected to be available in 2007 through
its continued debottlenecking efforts.

     Equity in earnings of Kronos - second half of 2004 and year ended  December
31, 2005


                                                     Six months ended             Year ended
                                                       December 31,              December 31,
                                                           2004                      2005
                                                           ----                      ----
                                                      (In millions)             (In millions)
 Kronos historical:
                                                                            
   Net sales                                             $ 569.5                  $1,196.7

   Segment profit                                        $  53.3                  $  181.5
   Other general corporate, net                             (1.6)                     (4.1)
   Securities transaction gain                                -                        5.4
   Interest expense                                        (25.9)                    (44.7)
                                                         -------                  --------

                                                            25.8                     138.1
   Income tax expense                                        5.5                      67.1
                                                         -------                  --------

     Net income                                          $  20.3                  $   71.0
                                                         =======                  ========

   Equity in earnings of Kronos Worldwide, Inc.          $   9.6                  $   25.5
                                                         =======                  ========


     See above for a  discussion  relating to Kronos'  operations  during  2004.
Securities  transaction  gain in 2005  relates  to the sale of  Kronos'  passive
interest in a Norwegian smelting  operation,  which had a nominal carrying value
for financial reporting purposes,  for aggregate  consideration of approximately
$5.4 million  consisting of cash of $3.5 million and  inventory  with a value of
$1.9 million.  Kronos' interest expense in the second half of 2004 and full year
2005 relates principally to Kronos International, Inc.'s ("KII" - a wholly-owned
subsidiary  of Kronos)  Senior  Secured  Notes.  In  addition,  in 2004  Kronos'
interest  expense  also  related to a $200  million  long-term  note  payable to
affiliates which was fully prepaid in the fourth quarter of 2004.

     Kronos' income tax expense in 2005 includes the net non-cash effects of (i)
the aggregate  favorable effects of recent  developments with respect to certain
non-U.S.  income tax audits of Kronos,  principally  in Belgium and  Canada,  of
$11.5  million  and (ii) the  unfavorable  effect  with  respect  to the loss of
certain income tax attributes of Kronos in Germany of $17.5 million.

General corporate and other items

     General  corporate  interest  and  dividend  income.  Interest and dividend
income  fluctuates  in part based upon the amount of funds  invested  and yields
thereon.  Aggregate  interest and dividend income decreased $4.0 million in 2005
compared  to  2004  primarily  due to the  repayment  of  $31.4  million  of the
Company's note receivable  from Kronos in the fourth quarter of 2004.  Aggregate
interest and dividend  income  increased  $4.6 million in 2004  compared to 2003
primarily  due to interest  on NL's note  receivable  from Kronos  which was not
eliminated  upon  consolidation  in the last six  months  of 2004.  The  Company
expects  interest  income  will be lower in 2006 than 2005 due to lower  average
levels of funds available for investment.

     Securities  transactions.  Net securities transactions gains in 2005 relate
principally to a $14.7 million  pre-tax gain ($8.0 million,  or $.17 per diluted
share, net of income taxes) related to NL's sale of approximately 470,000 shares
of Kronos  common stock in market  transactions  during 2005.  See Note 2 to the
Consolidated  Financial  Statements.  Net securities  transactions gains in 2004
includes a $2.2 million gain ($1.4 million,  or $.03 per diluted  share,  net of
income  taxes)  related to NL's sale of shares of Kronos  common stock in market
transactions.   See  Note  2  to  the  Consolidated  Financial  Statements.  Net
securities transactions gains in 2003 included a $2.3 million noncash securities
gain related to the exchange of the  Company's  holdings of Tremont  Corporation
common stock for shares of Valhi,  Inc.  common stock as a result of a series of
merger transactions completed in February 2003.

     Other general  corporate income items. The gain on disposal of fixed assets
in 2003  relates  primarily  to the  sale of  certain  real  property  of NL not
associated  with any operations.  NL has certain other real property,  including
some subject to environmental remediation, which could be sold in the future for
a profit.  Noncompete  income  relates to NL's $20 million of proceeds  from the
disposal of its specialty chemicals business unit in January 1998 related to its
agreement  not to  compete  in the  rheological  products  business,  which  was
recognized as a component of general corporate income ratably over the five-year
non-compete period ended in January 2003 ($333,000 recognized in 2003). See Note
18 to the Consolidated Financial Statements.

     Insurance  recoveries.  NL has reached an agreement with a former insurance
carrier in which such carrier  would  reimburse NL for a portion of its past and
future lead pigment litigation  defense costs,  although the amount that NL will
ultimately recover from such carrier with respect to such defense costs incurred
by NL is not yet  determinable.  In addition,  during 2005, NL  recognized  $2.2
million of recoveries from certain insolvent former insurance  carriers relating
to settlement of excess insurance claims that were paid to NL.

     Insurance  recoveries of $823,000 in 2003, $552,000 in 2004 and $804,000 in
2005 relate to NL's settlements  with certain of its former insurance  carriers.
These  settlements,  as well as similar  prior  settlements  NL reached prior to
2003,  resolved court proceedings in which NL had sought  reimbursement from the
carriers  for legal  defense  costs and  indemnity  coverage  for certain of its
environmental remediation expenditures. No further material settlements relating
to litigation concerning  environmental  remediation coverages are expected. See
Note 18 to the Consolidated Financial Statements.

     While NL continues to seek additional insurance recoveries, there can be no
assurance  that NL will be  successful  in  obtaining  reimbursement  for either
defense  costs or  indemnity.  NL has not  considered  any  potential  insurance
recoveries in determining  related accruals for lead pigment litigation matters.
Any such additional  insurance recoveries would be recognized when their receipt
is deemed probable and the amount is determinable.

     General corporate  expenses.  Net general  corporate  expenses in 2005 were
$2.8 million  (16%) higher than 2004 due  primarily to higher legal  expenses of
NL. Net general  corporate  expenses in 2004 were $40.3  million lower than 2003
due primarily to lower environmental remediation and legal expenses.

     Net general corporate  expenses in calendar 2006 are currently  expected to
be higher as compared to 2005,  primarily due to higher expected  litigation and
related expenses. However, obligations for environmental remediation obligations
are difficult to assess and estimate,  and no assurance can be given that actual
costs will not exceed accrued  amounts or that costs will not be incurred in the
future with respect to sites for which no estimate of liability can presently be
made. See Note 19 to the Consolidated Financial Statements.

     Interest expense. Substantially all of the interest expense in 2004 relates
to Kronos and  consequently,  interest  expense in 2004 decreased  $16.0 million
compared to 2003 primarily due to the  deconsolidation  of Kronos effective July
1, 2004.  Interest  expense  related to CompX in 2005 declined by  approximately
$200,000  in 2005  compared to 2004 due  primarily  to lower  average  levels of
outstanding  debt.  The Company does not  currently  expect to report a material
amount of interest expense in 2006.

     Provision  for income  taxes.  The  principal  reasons  for the  difference
between the Company's  effective income tax rates and the U.S. federal statutory
income  tax  rates  are  explained  in  Note  15 to the  Consolidated  Financial
Statements.

     The Company's  income tax expense in 2005 includes the net non-cash effects
of (i) the  favorable  effect of recent  developments  with  respect  to certain
income tax items of NL of $7.4 million (or $.15 per diluted  share) and (ii) the
unfavorable  effect with respect to a change in CompX's  permanent  reinvestment
conclusion regarding its non-U.S. subsidiaries of $9.0 million ($6.1 million, or
$.13 per diluted share, net of minority interest).

     As  more  fully  described  in  Note  15  to  the  Consolidated   Financial
Statements, Kronos had previously provided a deferred income tax asset valuation
allowance  against  substantially  all of its tax loss  carryforwards  and other
deductible temporary  differences in Germany because Kronos did not believe they
met the "more-likely-than-not" recognition criteria. During the first six months
of 2004,  Kronos reduced its deferred  income tax asset  valuation  allowance by
approximately  $8.7  million,  primarily as a result of the  utilization  of its
German net operating loss carryforwards, the benefit of which had not previously
been  recognized.  At June 30, 2004, after  considering all available  evidence,
Kronos concluded that these German tax loss  carryforwards  and other deductible
temporary differences now met the  "more-likely-than-not"  recognition criteria.
Under applicable GAAP related to accounting for income taxes at interim periods,
a change in  estimate  at an  interim  period  resulting  in a  decrease  in the
valuation  allowance is segregated into two  components,  the portion related to
the remaining interim periods of the current year and the portion related to all
future years.  The portion of the valuation  allowance  reversal  related to the
former is recognized over the remaining interim periods of the current year, and
the portion of the  valuation  allowance  related to the latter is recognized at
the time the  change in  estimate  is made.  Accordingly,  as of June 30,  2004,
Kronos reversed  $268.6 million of the valuation  allowance (the portion related
to future years), and Kronos reversed the remaining $3.4 million during the last
six months of 2004. Prior to the complete utilization of such carryforwards,  it
is possible  that the Company  might  conclude in the future that the benefit of
such carryforwards would no longer meet the  "more-likely-than-not"  recognition
criteria,  at which point the Company would be required to recognize a valuation
allowance   against  the   then-remaining   tax  benefit   associated  with  the
carryforwards.

     Also during 2004, NL recognized a second  quarter $48.5 million  income tax
benefit  related to income  tax  attributes  of EMS.  This  income  tax  benefit
resulted from a settlement  agreement  reached with the U.S. IRS  concerning the
IRS'  previously-reported  examination  of a certain  restructuring  transaction
involving  EMS,  and  included  (i) a $17.4  million  tax  benefit  related to a
reduction  in the  amount  of  additional  income  taxes and  interest  which NL
estimates  it will be  required to pay related to this matter as a result of the
settlement  agreement  and  (ii) a $31.1  million  tax  benefit  related  to the
reversal of a deferred income tax asset valuation  allowance  related to certain
tax attributes of EMS (including a U.S. net operating loss  carryforward)  which
NL now believes meet the "more-likely-than-not" recognition criteria.

     In  January  2004,  the  German  federal  government  enacted  new  tax law
amendments  that limit the annual  utilization of income tax loss  carryforwards
effective  January  1, 2004 to 60% of  taxable  income  after  the first  euro 1
million of taxable income. The new law will have a significant effect on Kronos'
cash tax  payments  in  Germany  going  forward,  the  extent  of which  will be
dependent upon the level of taxable income earned in Germany.

     During  2003,  NL and  Kronos  reduced  their  deferred  income  tax  asset
valuation allowance by an aggregate of approximately $7.2 million,  primarily as
a result of the  utilization  of  certain  income tax  attributes  for which the
benefit had not previously been  recognized.  In addition,  Kronos  recognized a
$38.0 million income tax benefit related to the net refund of certain prior year
German income taxes.

     As  discussed  in  Note 1 to the  Consolidated  Financial  Statements,  the
Company commenced to recognize  deferred income taxes with respect to the excess
of the  financial  reporting  carrying  amount  over the income tax basis of its
investment in Kronos beginning in December 2003 following the Company's pro-rata
distribution  of  shares  of  Kronos  common  stock  to NL's  shareholders.  The
aggregate  amount  of such  deferred  income  taxes  (benefit)  included  in the
Company's provision for income taxes was $39.5 million in 2003, $23.2 million in
2004 and nil in 2005. In addition,  the Company's  provision for income taxes in
2003,  2004 and 2005  includes an aggregate  $30.3  million,  $21.2  million and
$913,000,  respectively,  for the  current  income  tax  effect  related to NL's
distribution of such shares of Kronos common stock to its shareholders.

     In October  2004,  the American  Jobs Creation Act of 2004 was enacted into
law.  The new law  provided for a special 85%  deduction  for certain  dividends
received from a controlled foreign  corporation in 2005. In the third quarter of
2005, the Company and Kronos each completed its evaluation of this new provision
and determined  that it would not benefit from such special  dividends  received
deduction.

     Minority interest.  The Company commenced  recognizing minority interest in
Kronos  following the Company's  December 2003  distribution of a portion of the
shares of Kronos common stock to its stockholders, and ceased reporting minority
interest in Kronos  effective July 1, 2004 upon the  deconsolidation  of Kronos.
See Note 13 to the Consolidated Financial Statements.

     Minority  interest  in  NL's  subsidiary  also  related  to  EMS.  EMS  was
established  in 1998, at which time EMS  contractually  assumed  certain of NL's
environmental liabilities. EMS' earnings are based, in part, upon its ability to
favorably  resolve these  liabilities on an aggregate  basis. See Note 13 to the
Consolidated Financial Statements.

     Discontinued  operations.   See  Note  24  to  the  Consolidated  Financial
Statements.

     Related party transactions.  The Company is a party to certain transactions
with  related  parties.  See  Notes  2 and  17  to  the  Consolidated  Financial
Statements.  It is the  policy of the  Company  to engage in  transactions  with
related  parties on terms,  in the opinion of the Company,  no less favorable to
the Company than could be obtained from unrelated parties.

     Accounting  principles  newly adopted in 2003 and 2004.  See Note 22 to the
Consolidated Financial Statements.

     Accounting  principles  not yet  adopted.  See Note 23 to the  Consolidated
Financial Statements.

Assumptions on defined benefit pension plans and OPEB plans

     Defined benefit pension plans. NL maintains various defined benefit pension
plans in the U.S., and Kronos maintains various defined benefit pension plans in
Europe,  Canada  and  the  U.S.  See  Note  16  to  the  Consolidated  Financial
Statements.

     The Company  accounts for its defined  benefit pension plans using SFAS No.
87,  "Employer's  Accounting for Pensions."  Under SFAS No. 87, defined  benefit
pension plan expense and prepaid and accrued  pension costs are each  recognized
based on certain actuarial  assumptions,  principally the assumed discount rate,
the assumed  long-term rate of return on plan assets and the assumed increase in
future compensation levels. The Company recognized  consolidated defined benefit
pension plan expense of $8.9 million in 2003,  $6.8 million in 2004 and $700,000
in 2005.  Such expense in 2004 includes  one-half of the defined benefit pension
expense  attributable  to Kronos'  plans for the period during which the Company
consolidated  Kronos' results of operations.  The amount of funding requirements
for these  defined  benefit  pension  plans is generally  based upon  applicable
regulations  (such as ERISA in the U.S.), and will generally differ from pension
expense  recognized  under  SFAS  No.  87  for  financial   reporting  purposes.
Contributions  made by the Company to all of its plans  aggregated $14.1 million
in 2003, $9.1 million in 2004 and $700,000 in 2005. Such  contributions  in 2004
includes  one-half of the  contributions  attributable  to Kronos' plans for the
period during which the Company consolidated Kronos' results of operations.

     The discount rates the Company  utilizes for  determining  defined  benefit
pension  expense  and the  related  pension  obligations  are  based on  current
interest  rates  earned on  long-term  bonds that receive one of the two highest
ratings given by recognized rating agencies in the applicable  country where the
defined  benefit  pension  benefits  are being paid.  In  addition,  the Company
receives advice about appropriate discount rates from the Company's  third-party
actuaries,  who may in some cases utilize their own market indices. The discount
rates  are  adjusted  as of each  valuation  date  (September  30th) to  reflect
then-current  interest  rates on such long-term  bonds.  Such discount rates are
used to determine the actuarial  present value of the pension  obligations as of
December 31st of that year,  and such discount  rates are also used to determine
the interest  component of defined  benefit  pension  expense for the  following
year.

     At December 31, 2005, approximately 85% of the projected benefit obligation
related to NL plans in the U.S, with the remainder related to an immaterial plan
in the United Kingdom  associated  with a former  disposed  business unit of the
Company.  The Company  uses  several  different  discount  rate  assumptions  in
determining  its  consolidated  defined  benefit  pension plan  obligations  and
expense  because the Company  maintains  defined  benefit  pension  plans in the
United States and the United Kingdom and the interest rate  environment  differs
from country to country.

     The Company  used the  following  discount  rates for its  defined  benefit
pension plans:


                                                          Discount rates used for:
                         -------------------------------------------------------------------------------------------
                                Obligations at                Obligations at                 Obligations at
                            December 31, 2003 and      December 31, 2004 and expense      December 31, 2005 and
                               expense in 2004                    in 2005                    expense in 2006
                         --------------------------  ---------------------------------- ----------------------------

                                                                                           
  U.S.                                 5.9%                         5.8%                            5.5%
  United Kingdom                       5.3%                         5.5%                            5.0%
  Germany                              5.3%                          *                               *
  Canada                               6.3%                          *                               *
  Norway                               5.5%                          *                               *

__________________________

*    Not  applicable,   as  effective  July  1,  2004,  the  Company  no  longer
     consolidates Kronos.

     The  assumed  long-term  rate of  return  on  plan  assets  represents  the
estimated  average rate of earnings  expected to be earned on the funds invested
or to be invested  in the plans'  assets  provided to fund the benefit  payments
inherent in the projected benefit  obligations.  Unlike the discount rate, which
is adjusted each year based on changes in current long-term  interest rates, the
assumed  long-term  rate of return on plan  assets will not  necessarily  change
based upon the actual,  short-term  performance  of the plan assets in any given
year.  Defined  benefit  pension  expense  each year is based  upon the  assumed
long-term  rate of return on plan assets for each plan and the actual fair value
of the plan  assets as of the  beginning  of the year.  Differences  between the
expected  return on plan  assets  for a given  year and the  actual  return  are
deferred  and  amortized  over future  periods  based  either upon the  expected
average  remaining  service life of the active plan  participants (for plans for
which  benefits  are still  being  earned by active  employees)  or the  average
remaining  life  expectancy  of the inactive  participants  (for plans for which
benefits are not still being earned by active employees).

     At December 31, 2005,  approximately 89% of the plan assets related to plan
assets  for NL's  plans in the U.S.,  with the  remainder  related to the United
Kingdom plan. The Company uses several  different  long-term  rates of return on
plan asset  assumptions in determining its consolidated  defined benefit pension
plan expense  because the Company  maintains  defined  benefit pension plans the
United States and the United Kingdom, the plan assets in different countries are
invested in a different mix of investments and the long-term rates of return for
different investments differ from country to country.

     In  determining  the  expected  long-term  rate of  return  on  plan  asset
assumptions,  the Company  considers  the long-term  asset mix (e.g.  equity vs.
fixed  income) for the assets for each of its plans and the  expected  long-term
rates of return for such asset  components.  In addition,  the Company  receives
advice  about   appropriate   long-term  rates  of  return  from  the  Company's
third-party actuaries. Such assumed asset mixes are summarized below:

o    During 2003,  2004 and 2005,  the plan assets in the U.S.  were invested in
     the Combined  Master  Retirement  Trust ("CMRT"),  a collective  investment
     trust  sponsored by Contran to permit the collective  investment by certain
     master  trusts  which fund certain  employee  benefits  plans  sponsored by
     Contran and certain of its  affiliates.  Harold Simmons is the sole trustee
     of the CMRT. The CMRT's long-term investment objective is to provide a rate
     of return  exceeding a composite  of broad  market  equity and fixed income
     indices  (including the S&P 500 and certain Russell indices) utilizing both
     third-party  investment  managers  as well as  investments  directed by Mr.
     Simmons.  During the 18-year history of the CMRT through December 31, 2005,
     the average  annual rate of return has been  approximately  14% (with a 36%
     return for 2005).

     The Company  regularly  reviews its actual asset allocation for each of its
plans,  and will  periodically  rebalance the  investments  in each plan to more
accurately reflect the targeted allocation when considered appropriate.

     The Company's  assumed  long-term  rates of return on plan assets for 2003,
2004 and 2005 were as follows:


                                              2003               2004                 2005
                                              ----               ----                 ----

                                                                             
  U.S.                                        10.0%              10.0%                10.0%
  United Kingdom                               7.5%               7.0%                 6.5%
  Germany                                      6.5%                *                    *
  Canada                                       7.0%                *                    *
  Norway                                       6.0%                *                    *

__________________________

*    Not  applicable,   as  effective  July  1,  2004,  the  Company  no  longer
     consolidates Kronos.

     The Company  currently expects to utilize the same long-term rate of return
on plan asset assumptions in 2006 as it used in 2005 for purposes of determining
the 2006 defined benefit pension plan expense.

     To the extent that a plan's particular  pension benefit formula  calculates
the pension benefit in whole or in part based upon future  compensation  levels,
the projected benefit  obligations and the pension expense will be based in part
upon expected increases in future compensation  levels. For all of the Company's
plans for which the benefit  formula is so  calculated,  the  Company  generally
bases the assumed expected increase in future  compensation  levels upon average
long-term inflation rates for the applicable country.

     In  addition  to the  actuarial  assumptions  discussed  above,  because NL
maintains  defined  benefit  pension  plans  outside  the  U.S.,  the  amount of
recognized defined benefit pension expense and the amount of prepaid and accrued
pension costs will vary based upon relative changes in foreign currency exchange
rates.

     As  discussed  above,  assumed  discount  rates  and rate of return on plan
assets are  re-evaluated  annually.  A reduction  in the assumed  discount  rate
generally  results in an actuarial loss, as the  actuarially-determined  present
value of  estimated  future  benefit  payments  will  increase.  Conversely,  an
increase in the assumed discount rate generally results in an actuarial gain. In
addition,  an actual return on plan assets for a given year that is greater than
the assumed return on plan assets results in an actuarial gain,  while an actual
return  on plan  assets  that is less  than the  assumed  return  results  in an
actuarial  loss.  Other actual  outcomes that differ from previous  assumptions,
such as  individuals  living longer or shorter than assumed in mortality  tables
which are also used to determine  the  actuarially-determined  present  value of
estimated future benefit payments, changes in such mortality table themselves or
plan amendments,  will also result in actuarial losses or gains. Under GAAP, all
of such actuarial gains and losses are not recognized in earnings currently, but
instead  are  deferred  and  amortized  into income in the future as part of net
periodic defined benefit pension cost. However, any actuarial gains generated in
future periods would reduce the negative  amortization  effect of any cumulative
unrecognized  actuarial  losses,  while any actuarial losses generated in future
periods  would  reduce  the  favorable  amortization  effect  of any  cumulative
unrecognized actuarial gains.

     During 2005, all of the Company's defined benefit pension plans generated a
net actuarial loss of $4.1 million.  This actuarial loss resulted primarily from
the  general  overall  reduction  in the assumed  discount  rates as well as the
unfavorable  effect of using updated  mortality tables (which generally  reflect
individuals living longer than prior mortality tables used), partially offset by
an actual return on plan assets in excess of the assumed return.

     Based  on the  actuarial  assumptions  described  above  and  NL's  current
expectation  for what actual  average  foreign  currency  exchange rates will be
during 2006, NL expects its defined benefit pension income will approximate $2.2
million in 2006. In comparison,  NL expects to be required to make approximately
$400,000 of contributions to such plans during 2006.

     As noted above,  defined benefit pension expense and the amounts recognized
as accrued  pension  costs are based upon the  actuarial  assumptions  discussed
above. The Company believes all of the actuarial assumptions used are reasonable
and appropriate.  If NL had lowered the assumed discount rate by 25 basis points
for all of its plans as of December 31, 2005, NL's aggregate  projected  benefit
obligations  would have  increased by  approximately  $1.3 million at that date.
Such a change would not materially  impact NL's defined  benefit pension expense
for 2006. Similarly,  if NL lowered the assumed long-term rate of return on plan
assets by 25 basis  points for all of its plans,  NL's defined  benefit  pension
expense would be expected to increase by approximately $100,000 during 2006.

     OPEB plans.  Certain  subsidiaries  of the  Company in the U.S.  and Canada
currently  provide certain health care and life insurance  benefits for eligible
retired employees.  See Note 16 to the Consolidated  Financial  Statements.  The
Company  accounts for such OPEB costs under SFAS No. 106,  Employers  Accounting
for  Postretirement  Benefits  other than  Pensions.  Under SFAS No.  106,  OPEB
expense  and  accrued  OPEB  costs are based on certain  actuarial  assumptions,
principally  the assumed  discount  rate and the assumed  rate of  increases  in
future health care costs. The Company  recognized  consolidated  OPEB expense of
$329,000 in 2003,  $1.1  million in 2004 and  $558,000 in 2005.  Such expense in
2004 includes one-half of the OPEB expense attributable to Kronos' plans for the
period  during which the Company  consolidated  Kronos'  results of  operations.
Similar to defined benefit pension  benefits,  the amount of funding will differ
from the expense recognized for financial reporting purposes,  and contributions
to the plans to cover benefit  payments  aggregated  $3.8 million in 2003,  $3.5
million in 2004 and $2.2  million in 2005.  Such  contributions  in 2004 include
one-half  of the  contributions  attributable  to  Kronos'  plans for the period
during  which  the  Company   consolidated   Kronos'   results  of   operations.
Substantially  all of the Company's  accrued OPEB cost relates to benefits being
paid to current  retirees and their  dependents,  and no material amount of OPEB
benefits  are being  earned  by  current  employees.  As a  result,  the  amount
recognized  for OPEB expense for financial  reporting  purposes has been, and is
expected to continue to be,  significantly  less than the amount of OPEB benefit
payments  made each year.  Accordingly,  the amount of accrued  OPEB expense has
been, and is expected to continue, to decline gradually.

     The  assumed  discount  rates the Company  utilizes  for  determining  OPEB
expense and the related accrued OPEB obligations are generally based on the same
discount rates the Company utilizes for its defined benefit pension plans.

     In estimating  the health care cost trend rate,  the Company  considers its
actual health care cost experience,  future benefit structures,  industry trends
and advice from its third-party actuaries. In certain cases, NL has the right to
pass on to retirees all or a portion of  increases in health care costs.  During
each of the past three years, the Company has assumed that the relative increase
in health care costs will generally  trend downward over the next several years,
reflecting,  among other things,  assumed  increases in efficiency in the health
care system and  industry-wide  cost containment  initiatives.  For example,  at
December  31, 2005 the  expected  rate of  increase in future  health care costs
ranges from 9% in 2006, declining to 5.5% in 2009 and thereafter.

     Based  on the  actuarial  assumptions  described  above  and  NL's  current
expectation  for what actual  average  foreign  currency  exchange rates will be
during 2006, the Company expects its consolidated  OPEB expense will approximate
$600,000 in 2006. In comparison,  the Company expects the employer  contribution
portion of costs to approximate $1.6 million during 2006.

     As noted  above,  OPEB  expense and the amount  recognized  as accrued OPEB
costs are based upon the  actuarial  assumptions  discussed  above.  The Company
believes all of the actuarial  assumptions  used are reasonable and appropriate.
If the Company had lowered the assumed  discount rate by 25 basis points for all
of its OPEB plans as of December 31, 2005,  the  Company's  aggregate  projected
benefit obligations would have increased by approximately $200,000 at that date,
and the  Company's  OPEB  expense  would be  expected  to  increase by less than
$50,000  during 2006.  Similarly,  if the assumed  future health care cost trend
rate had been  increased by 100 basis  points,  the Company's  accumulated  OPEB
obligations would have increased by approximately $800,000 at December 31, 2005,
and OPEB expense would have increased by $50,000 in 2005.

Foreign operations

     Kronos. Kronos has substantial operations located outside the United States
(principally  Europe and  Canada) for which the  functional  currency is not the
U.S. dollar. As a result, the reported amount of the Company's net investment in
Kronos will fluctuate based upon changes in currency exchange rates. At December
31, 2005,  Kronos had substantial net assets  denominated in the euro,  Canadian
dollar, Norwegian kroner and British pound sterling.

     CompX.  CompX has  substantial  operations and assets  located  outside the
United States,  principally slide and/or ergonomic product  operations in Canada
and Taiwan.

LIQUIDITY AND CAPITAL RESOURCES

Summary

     The Company's  primary  source of liquidity on an ongoing basis is its cash
flows from  operating  activities,  which is generally  used to (i) fund capital
expenditures,  (ii) repay any  short-term  indebtedness  incurred  primarily for
working  capital  purposes and (iii)  provide for the payment of  dividends.  In
addition,  from time-to-time the Company will incur  indebtedness,  generally to
(i) fund short-term working capital needs, (ii) refinance existing  indebtedness
or (iii) fund major  capital  expenditures  or the  acquisition  of other assets
outside  the  ordinary   course  of  business.   Also,  the  Company  will  from
time-to-time  sell assets outside the ordinary course of business,  the proceeds
of which  are  generally  used to (i)  repay  existing  indebtedness  (including
indebtedness  which may have been  collateralized by the assets sold), (ii) make
investments  in  marketable  and other  securities,  (iii)  fund  major  capital
expenditures  or the  acquisition of other assets outside the ordinary course of
business or (iv) pay dividends.

     Based  upon the  Company's  expectations  for the  industries  in which its
subsidiaries  and  affiliates  operate,  and  the  anticipated  demands  on  the
Company's  cash  resources  as  discussed  herein,  the Company  expects to have
sufficient  liquidity  to meet its  obligations  including  operations,  capital
expenditures,  debt  service and  current  dividend  policy.  To the extent that
actual  developments  differ  from the  Company's  expectations,  the  Company's
liquidity could be adversely affected.

     The  deconsolidation  of Kronos  effective  July 1, 2004 has a  significant
effect on the comparability of the Company's consolidated cash flows.

Consolidated cash flows

     Operating  activities.  Trends  in cash  flows  from  operating  activities
(excluding the impact of significant asset  dispositions and relative changes in
assets  and  liabilities)  are  generally  similar  to trends  in the  Company's
earnings. However, certain items included in the determination of net income are
non-cash,  and therefore  such items have no impact on cash flows from operating
activities.  Non-cash items included in the  determination of net income include
depreciation  and  amortization  expense,  deferred  income  taxes and  non-cash
interest expense.  Non-cash  interest expense relates  principally to Kronos and
CompX and consists of amortization of deferred financing costs.

     Certain other items included in the determination of net income may have an
impact on cash flows from operating activities,  but the impact of such items on
cash  flows from  operating  activities  will  differ  from their  impact on net
income. For example, equity in earnings of affiliates will generally differ from
the amount of distributions received from such affiliates,  and equity in losses
of affiliates does not  necessarily  result in current cash outlays paid to such
affiliates.  The amount of periodic  defined  benefit  pension  plan expense and
periodic  OPEB  expense  depends  upon a number of  factors,  including  certain
actuarial assumptions,  and changes in such actuarial assumptions will result in
a change in the  reported  expense.  In  addition,  the amount of such  periodic
expense  generally  differs from the  outflows of cash  required to be currently
paid for such benefits.

     Certain  other items  included in the  determination  of net income have no
impact on cash flows from  operating  activities,  but such items do impact cash
flows  from  investing  activities  (although  their  impact on such cash  flows
differs from their impact on net income). For example, realized gains and losses
from the disposal of long-lived  assets are included in the determination of net
income,  although the proceeds  from any such disposal are shown as part of cash
flows from investing activities.

     Relative changes in assets and liabilities generally result from the timing
of production,  sales, purchases and income tax payments.  Such relative changes
can  significantly  impact the  comparability  of cash flow from operations from
period to period,  as the income  statement  impact of such items may occur in a
different period from when the underlying cash transaction  occurs. For example,
raw  materials  may be  purchased  in one  period,  but the payment for such raw
materials may occur in a subsequent period. Similarly,  inventory may be sold in
one period,  but the cash collection of the receivable may occur in a subsequent
period.

     Cash flows from  operating  activities  changed from $92.7  million of cash
provided  by  operating  activities  in  2004 to $5.3  million  of cash  used by
operating activities in 2005. This $98.0 million decrease in cash generated from
operating  activities  was  due  primarily  to the  deconsolidation  of  Kronos,
effective July 1, 2004. As such, cash flows from operating activities in 2004 is
not  comparable to 2005.  Cash flows from  operating  activities  decreased from
$114.9 million provided by operating activities in 2003 to $92.7 million of cash
provided by operating  activities in 2004.  This $22.2 million  decrease was due
primarily to the  deconsolidation  of Kronos,  effective  July 1, 2004. As such,
cash flows from operating activities in 2003 is not comparable to 2004. Relative
changes in accounts  receivable are affected by, among other things,  the timing
of sales and the collection of the resulting  receivables.  Relative  changes in
inventories and accounts payable and accrued  liabilities are affected by, among
other  things,  the timing of raw  material  purchases  and the payment for such
purchases  and the  relative  difference  between  production  volumes and sales
volumes.  Relative changes in accrued environmental costs are affected by, among
other things,  the period in which recognition of the  environmental  accrual is
recognized and the period in which the remediation expenditure is actually made.

     NL does not have complete access to the cash flows of its  subsidiaries and
affiliates, in part due to limitations contained in certain credit agreements as
well as the fact that certain of such  subsidiaries  and affiliates are not 100%
owned by NL. A detail of NL's consolidated cash flows from operating  activities
is presented in the table below. Eliminations consist of intercompany dividends.


                                                               Years ended December 31,
                                                             ----------------------------
                                                    2003                2004                 2005
                                                    ----                ----                 ----
                                                                   (In millions)

Cash provided (used) by
 operating activities:
                                                                                 
  Kronos                                         $ 107.7             $  67.5              $    -
  CompX                                             24.4                30.2                 20.0
  NL Parent                                        (19.9)                7.1                (10.1)
  Other                                              9.7                 1.6                (10.0)
  Eliminations                                      (7.0)              (13.7)                (5.2)
                                                 -------             -------              -------

                                                 $ 114.9             $  92.7              $  (5.3)
                                                 =======             =======              =======


     Investing  activities.   The  Company's  capital  expenditures  were  $44.3
million,  $16.2 million and $10.7 million in 2003,  2004 and 2005,  respectively
and are disclosed by business  segment in Note 3 to the  Consolidated  Financial
Statements.  Such capital  expenditures  in 2004 include the first six months of
Kronos'   capital   expenditures   for  the  period  during  which  the  Company
consolidated Kronos' cash flows.

     At December 31, 2005,  firm purchase  commitments  for capital  projects in
process  approximated  $3  million,  all of which  relates to CompX's  component
products  facilities.  Aggregate  capital  expenditures for 2006 are expected to
approximate  $16 million for CompX,  and are  expected to be financed  primarily
from operations or existing cash resources and credit facilities.

     During  2005,  (i)  NL  sold  shares  of  Kronos  common  stock  in  market
transactions for $19.2 million, (ii) CompX received a net $18.1 million from the
sale of its Thomas Regout  European  operations  (which had  approximately  $4.0
million of cash at the date of disposal),  (iii) NL acquired  CompX common stock
in market  transactions for $3.6 million,  (iv) EMS collected $10 million on its
loan to one of the Contran family trusts and (v) CompX acquired a company for an
aggregate of $7.3 million.  See Notes 2, 3 and 15 to the Consolidated  Financial
Statements.

     During  2004,  (i)  NL  sold  shares  of  Kronos  common  stock  in  market
transactions for net proceeds of $2.7 million,  (ii) Kronos repaid $31.4 million
of its note payable to NL in the fourth  quarter of 2004 and (iii) EMS collected
$4 million of its loan to one of the Contran  family trusts  described in Note 1
to the Consolidated Financial Statements.

     During 2003, (i) EMS collected $4 million on its loan to one of the Contran
family trusts and (ii) the Company  generated  approximately  $12.8 million from
the sale of  property  and  equipment,  primarily  certain  real  property of NL
discussed above.

     Financing  activities.  During 2004,  (i) CompX repaid a net $26.0  million
under its revolving bank credit  facility and (ii) Kronos  borrowed and repaid a
net of euro 26 million ($32 million when borrowed) under its European  revolving
bank credit facility during the first six months of 2004.

     Distributions to minority interest are primarily  comprised of Kronos' cash
dividends  in the first half of 2004 and CompX's  fourth  quarter  2004 and four
2005 quarterly cash dividends, in both cases paid to shareholders other than NL.
Other cash flows from financing activities relate primarily to proceeds from the
sale of NL common stock issued upon exercise of stock options.

     During 2003,  (i) CompX repaid a net $5 million  under its  revolving  bank
credit  facility  and (ii) Kronos  borrowed an aggregate of euro 15 million ($16
million when borrowed)  under its European  revolving  bank credit  facility and
repaid kroner 80 million ($11  million) and euro 30 million ($34 million)  under
such  facility.  NL paid cash  dividends  aggregating  $38.2  million  for 2003.
Distributions  to minority  interest in 2002 are  primarily  comprised  of CompX
dividends  paid to its  shareholders  other than Valhi and  Valcor,  and capital
transactions with affiliates during 2003 relates  principally to CompX dividends
paid to Valhi and Valcor.

     CompX closed on an extension of its credit  facility in December  2005. The
$50 million secured revolving bank credit facility is collateralized by a pledge
of 65% of the  ownership  interests  in  CompX's  first-tier  non-United  States
subsidiaries.  Provisions  contained in CompX's  revolving bank credit  facility
could  result  in the  acceleration  of such  indebtedness  prior to its  stated
maturity  for reasons  other than  defaults  from failing to comply with typical
financial  covenants.  For example,  the credit  agreement  allows the lender to
accelerate  the  maturity  of the  indebtedness  upon a change  of  control  (as
defined) of the borrower.  The terms of the credit agreement could result in the
acceleration of all or a portion of the indebtedness  following a sale of assets
outside of the ordinary course of business.

     On March 15, 2006,  the  Company's  Board of  Directors  declared a regular
quarterly cash dividend of $.125 per share to be paid to  stockholders of record
as of March 27, 2006 to be paid on March 31, 2006.

     Off  balance  sheet  financing  arrangements.  Other than  operating  lease
commitments disclosed in Note 19 to the Consolidated  Financial Statements,  the
Company is not party to any material off-balance sheet financing arrangements.

Component products - CompX International

     CompX's capital  expenditures  during the past three years aggregated $24.7
million.  Such  capital  expenditures  included  manufacturing   equipment  that
emphasizes improved production efficiency and increased production capacity.

     CompX received  approximately  $18.1 million cash (net of costs to sell) in
January 2005 upon the sale of its Thomas Regout  operations in the  Netherlands.
See Note 24 to the Consolidated  Financial  Statements.  CompX believes that its
cash on hand,  together  with  cash  generated  from  operations  and  borrowing
availability under its bank credit facility,  will be sufficient to meet CompX's
liquidity  needs for working  capital,  capital  expenditures,  debt service and
dividends.  To the extent that CompX's actual operating  results or developments
differ from CompX's expectations, CompX's liquidity could be adversely affected.
CompX,  which had suspended its regular quarterly dividend of $.125 per share in
the second  quarter of 2003,  reinstated its regular  quarterly  dividend at the
$.125 per share rate in the fourth quarter of 2004.

     CompX periodically evaluates its liquidity  requirements,  alternative uses
of  capital,  capital  needs and  available  resources  in view of,  among other
things,  its capital  expenditure  requirements,  dividend  policy and estimated
future operating cash flows. As a result of this process,  CompX has in the past
and may in the future seek to raise additional capital, refinance or restructure
indebtedness,   issue  additional   securities,   modify  its  dividend  policy,
repurchase  shares of its common  stock or take a  combination  of such steps or
other steps to manage its liquidity and capital resources.  In the normal course
of business,  CompX may review  opportunities  for  acquisitions,  divestitures,
joint  ventures  or  other  business  combinations  in  the  component  products
industry.  In the event of any such transaction,  CompX may consider using cash,
issuing  additional equity securities or increasing the indebtedness of CompX or
its subsidiaries.

Chemicals - Kronos

     At December 31, 2005, Kronos had cash, cash equivalents and marketable debt
securities of $76.0 million,  including restricted balances of $3.9 million, and
Kronos had  approximately  $136 million  available for borrowing under its U.S.,
Canadian and European credit facilities. Based upon Kronos' expectations for the
TiO2  industry and  anticipated  demands on Kronos' cash  resources as discussed
herein,  Kronos  expects  to  have  sufficient  liquidity  to  meet  its  future
obligations including operations, capital expenditures, debt service and current
dividend  policy.  To the extent that actual  developments  differ from  Kronos'
expectations, Kronos' liquidity could be adversely affected.

     At December 31, 2005, Kronos'  outstanding debt was comprised of (i) $449.3
million  related to KII's Senior  Secured Notes,  (ii) $11.5 million  related to
Kronos' U.S. subsidiary's revolving bank credit facility and (iii) approximately
$4.5 million of other indebtedness.  Prior to December 31, 2004, Kronos had $200
million  of  long-term  notes  payable  to  NL,  $168.6  million  of  which  was
subsequently assigned to affiliates upon the acquisition of 10,374,000 shares of
CompX.  See Note 1 to the  Consolidated  Financial  Statements.  The entire $200
million of long-term  notes,  including  the  remaining  balance owed to NL, was
prepaid by Kronos in the fourth quarter of 2004.

     Pricing  within the TiO2  industry  is  cyclical,  and  changes in industry
economic  conditions  significantly  impact Kronos'  earnings and operating cash
flows.  Cash flow from  operations is considered the primary source of liquidity
for Kronos.  Changes in TiO2  pricing,  production  volume and customer  demand,
among other things, could significantly affect the liquidity of Kronos.

     Kronos' capital  expenditures during the past three years aggregated $117.9
million,  including  $15  million  ($4  million  in 2005)  for  Kronos'  ongoing
environmental protection and compliance programs. Kronos' estimated 2006 capital
expenditures are $41 million,  including $6 million in the area of environmental
protection and compliance.

     See Note 15 to the Consolidated Financial Statements for certain income tax
examinations  currently  underway with respect to certain of Kronos'  income tax
returns in  various  U.S.  and  non-U.S.  jurisdictions,  and see Note 19 to the
Consolidated  Financial Statements with respect to certain legal proceedings and
environmental matters with respect to Kronos.

     Kronos periodically evaluates its liquidity requirements,  alternative uses
of capital,  capital needs and availability of resources in view of, among other
things,  its  dividend  policy,   its  debt  service  and  capital   expenditure
requirements  and estimated  future  operating  cash flows.  As a result of this
process, Kronos has in the past and may in the future seek to reduce, refinance,
repurchase or restructure  indebtedness,  raise additional  capital,  repurchase
shares of its common stock,  modify its dividend policy,  restructure  ownership
interests, sell interests in subsidiaries or other assets, or take a combination
of such steps or other steps to manage its liquidity and capital  resources.  In
the normal  course of its  business,  Kronos may  review  opportunities  for the
acquisition,  divestiture,  joint venture or other business  combinations in the
chemicals or other  industries,  as well as the acquisition of interests in, and
loans to, related  entities.  In the event of any such  transaction,  Kronos may
consider  using  available  cash,   issuing  equity   securities  or  increasing
indebtedness  to the  extent  permitted  by  the  agreements  governing  Kronos'
existing debt.

     Kronos has  substantial  operations  located  outside the United States for
which the functional  currency is not the U.S. dollar. As a result, the reported
amounts of Kronos' assets and  liabilities  related to its non-U.S.  operations,
and therefore Kronos' and the Company's  consolidated net assets, will fluctuate
based upon changes in currency exchange rates.

NL Industries Parent

     At December 31, 2005, NL (exclusive  of CompX) had cash,  cash  equivalents
and marketable debt securities of $59.9 million,  including  restricted balances
of $4.3 million.

     See Note 15 to the Consolidated Financial Statements for certain income tax
examinations  currently  underway  with  respect to  certain of NL's  income tax
returns,  and see Note 19 to the Consolidated  Financial Statements with respect
to certain legal proceedings and environmental matters with respect to NL.

     In  addition  to  those  legal  proceedings  described  in  Note  19 to the
Consolidated  Financial  Statements,   various  legislation  and  administrative
regulations  have,  from time to time,  been  proposed  that seek to (i)  impose
various  obligations  on present and former  manufacturers  of lead  pigment and
lead-based  paint with respect to asserted health  concerns  associated with the
use of such products and (ii)  effectively  overturn court decisions in which NL
and other pigment manufacturers have been successful.  Examples of such proposed
legislation  include bills which would permit civil liability for damages on the
basis of market  share,  rather  than  requiring  plaintiffs  to prove  that the
defendant's  product  caused the alleged  damage,  and bills which would  revive
actions  barred  by  the  statute  of  limitations.   While  no  legislation  or
regulations  have been  enacted  to date that are  expected  to have a  material
adverse effect on NL's consolidated financial position, results of operations or
liquidity,  imposition of market share liability or other legislation could have
such an effect.

     In December 2003, NL completed the distribution of  approximately  48.8% of
Kronos' outstanding common stock to its shareholders under which NL shareholders
received  one share of  Kronos'  common  stock for every two shares of NL common
stock  held.  Approximately  23.9  million  shares of Kronos  common  stock were
distributed.  Immediately  prior to the  distribution of shares of Kronos common
stock, Kronos distributed a $200 million promissory note payable by Kronos to NL
(of which NL  transferred  an aggregate of $168.6 million to Valhi and Valcor in
connection with NL's  acquisition of the shares of CompX common stock previously
held by Valhi and Valcor,  as discussed in Note 2 to the Consolidated  Financial
Statements).

     During 2005,  NL paid its first  quarter $.25 per share  regular  quarterly
dividend in the form of shares of Kronos  common  stock in which an aggregate of
approximately 266,000 shares, or approximately .5% of Kronos' outstanding common
stock, were distributed to NL shareholders in the form of pro-rata dividends. NL
paid cash  dividends  of $.25 per share in each of the second,  third and fourth
quarters of 2005.

     During 2004, NL paid each of its $.20 per share regular quarterly dividends
in the  form of  shares  of  Kronos  common  stock  in  which  an  aggregate  of
approximately  2.5% of Kronos'  outstanding  common stock was  distributed to NL
shareholders  in the form of pro-rata  dividends.  Following  the second of such
quarterly  dividends  in  2004,  NL  no  longer  owned  a  majority  of  Kronos'
outstanding  common stock, and accordingly NL ceased to consolidate Kronos as of
July 1, 2004.  During the fourth quarter of 2004, NL  transferred  approximately
5.5 million  shares of Kronos  common  stock to Valhi in  satisfaction  of a tax
liability and the tax liability  generated from the use of such Kronos shares to
settle such tax liability.  See Note 2 to the Consolidated Financial Statements.
In the fourth quarter of 2004, NL also sold 64,500 shares of Kronos common stock
in market transactions for an aggregate of approximately $2.7 million.

     On September  24, 2004, NL completed  the  acquisition  of the CompX shares
previously  held by Valhi and Valcor at a purchase price of $16.25 per share, or
an aggregate of  approximately  $168.6  million.  The purchase price was paid by
NL's  transfer  to Valhi  and  Valcor  of $168.6  million  of NL's $200  million
long-term note  receivable  from Kronos (which  long-term note was eliminated in
the preparation of the Company's Consolidated Financial Statements).  See Note 1
to the  Consolidated  Financial  Statements.  NL's acquisition was accounted for
under GAAP as a transfer of net assets among entities under common control,  and
accordingly  resulted  in a change  in  reporting  entity  and the  Company  has
retroactively  restated its  consolidated  financial  statements  to reflect the
consolidation of CompX for all periods  presented.  After such  acquisition,  NL
retained a $31.4  million note  receivable  from Kronos,  which note  receivable
Kronos  fully  prepaid in  November  2004 using funds from KII's  November  2004
issuance of euro 90 million principal amount of KII Senior Secured Notes.

     The Company periodically evaluates its liquidity requirements,  alternative
uses of capital,  capital needs and  availability of resources in view of, among
other  things,  its dividend  policy,  its debt service and capital  expenditure
requirements  and estimated  future  operating  cash flows.  As a result of this
process,  NL has in the past and may in the future  seek to  reduce,  refinance,
repurchase or restructure  indebtedness,  raise additional  capital,  repurchase
shares of its common stock,  modify its dividend policy,  restructure  ownership
interests, sell interests in subsidiaries or other assets, or take a combination
of such steps or other steps to manage its liquidity and capital  resources.  In
the normal course of its business, NL may review opportunities for acquisitions,
divestitures,  joint  ventures or other business  combinations  in the component
products or other  industries,  as well as the  acquisition of interests in, and
loans  to,  related  entities.  In the  event  of any such  transaction,  NL may
consider using its available cash,  issuing its equity  securities or increasing
its  indebtedness  to the extent  permitted  by the  agreements  governing  NL's
existing debt.

     Because NL's operations are conducted  primarily  through its  subsidiaries
and  affiliates,  NL's  long-term  ability  to meet  its  parent  company  level
corporate  obligations is dependent in large measure on the receipt of dividends
or other  distributions  from its subsidiaries  and affiliates.  Kronos' current
regular  quarterly cash dividends are $.25 per share. At that rate, and based on
the 17.5  million  shares of Kronos held by NL at December  31,  2005,  NL would
directly  receive  aggregate  annual  dividends  from  Kronos of $17.5  million.
CompX's current regular  quarterly  dividends are $.125 per share. At that rate,
and based on the 10.4 million shares of CompX held indirectly by NL (through its
ownership  interest in CompX Group) or held directly by NL at December 31, 2005,
NL would receive aggregate annual dividends from CompX of $5.2 million. See Note
3 to the Consolidated Financial Statements. See also the discussion contained in
Item 1A - "Risk Factors - Our assets  consist  primarily of  investments  in our
operating  subsidiaries  and affiliates and we are dependent upon  distributions
from our subsidiaries and affiliates."

Non-GAAP financial measures

     In an effort to provide investors with additional information regarding the
Company's results of operations as determined by GAAP, the Company has disclosed
certain  non-GAAP   information  which  the  Company  believes  provides  useful
information to investors:

o    The Company  discloses  percentage  changes in Kronos' average TiO2 selling
     prices in  billing  currencies,  which  excludes  the  effects  of  foreign
     currency  translation.  The Company believes  disclosure of such percentage
     changes  allows  investors to analyze  such  changes  without the impact of
     changes  in  foreign   currency   exchange  rates,   thereby   facilitating
     period-to-period  comparisons  of the relative  changes in average  selling
     prices in the actual various billing currencies.  Generally,  when the U.S.
     dollar  either  strengthens  or  weakens  against  other  currencies,   the
     percentage  change in average selling prices in billing  currencies will be
     higher or lower, respectively,  than such percentage changes would be using
     actual exchange rates prevailing during the respective periods.

Summary of debt and other contractual commitments

     As  more  fully  described  in  the  notes  to the  Consolidated  Financial
Statements,  the Company is a party to various debt,  lease and other agreements
which  contractually  and  unconditionally  commit the  Company  to pay  certain
amounts  in the  future.  See  Notes  12 and  19 to the  Consolidated  Financial
Statements.  The following table summarizes such contractual  commitments of the
Company and its  consolidated  subsidiaries  as of December 31, 2005 by the type
and date of payment.


                                                                          Payment due date
                                            ----------------------------------------------------------------------
                                                                                            2011 and
 Contractual commitment                      2006         2007/2008       2009/2010           after         Total
 ----------------------                      ----         ---------       ---------         ---------      ------
                                                                         (In millions)

                                                                                            
Third-party indebtedness                   $   .2          $   .5           $   .9           $   -         $  1.6
Estimated tax obligations                     1.4              -                -                -            1.4
Operating leases                               .5              .3               .1               -             .9
Raw material and other purchase
    obligations                              16.9              -                -                -           16.9
Fixed asset acquisitions                      2.6              -                -                -            2.6
                                           ------          ------           ------           ------        ------

                                           $ 21.6          $   .8           $  1.0           $   -         $ 23.4


     The  timing  and  amount  shown for the  Company's  commitments  related to
third-party  indebtedness,  operating  leases and fixed asset  acquisitions  are
based upon the contractual  payment amount and the contractual  payment date for
such  commitments.  The  timing  and  amount  shown for raw  material  and other
purchase obligations,  which consist of all open purchase orders and contractual
obligations  (primarily  commitments to purchase raw materials) is also based on
the  contractual  payment  amount  and the  contractual  payment  date  for such
commitments.  The amount shown for tax obligations is the consolidated amount of
income taxes  payable at December  31, 2005,  which is assumed to be paid during
2006.  Fixed asset  acquisitions  include firm purchase  commitments for capital
projects.

     The above table does not reflect any amounts that the Company  might pay to
fund its defined  benefit pension plans and OPEB plans, as the timing and amount
of any such future  fundings are unknown and  dependent  on, among other things,
the future  performance of defined  benefit  pension plan assets,  interest rate
assumptions  and actual  future  retiree  medical  costs.  Such defined  benefit
pension plans and OPEB plans are discussed above in greater detail.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

     General.  The  Company is exposed  to market  risk from  changes in foreign
currency exchange rates, interest rates and equity security prices. In the past,
the Company has periodically  entered into interest rate swaps or other types of
contracts  in order to manage a portion of its interest  rate market  risk.  The
Company has also periodically  entered into currency forward contracts to either
manage a nominal  portion of foreign  exchange rate market risk  associated with
receivables  denominated  in a  currency  other  than  the  holder's  functional
currency or similar risk  associated  with future  sales,  or to hedge  specific
foreign currency  commitments.  Otherwise,  the Company does not generally enter
into  forward or option  contracts  to manage  such market  risks,  nor does the
Company enter into any such contract or other type of derivative  instrument for
trading or speculative purposes.  Other than as described below, the Company was
not a party to any material  forward or derivative  option  contract  related to
foreign exchange rates, interest rates or equity security prices at December 31,
2004 and 2005. See Notes 1 and 20 to the Consolidated Financial Statements.  The
following  discussion  relates to NL and its  consolidated  subsidiaries at each
date indicated.

     Interest  rates.  The  Company is exposed  to market  risk from  changes in
interest rates,  primarily  related to  indebtedness.  NL had no indebtedness at
December  31, 2004 or 2005.  Outstanding  indebtedness  at December 31, 2004 and
2005 relates solely to CompX.

     At  December  31,  2005,   no  amounts  were   outstanding   under  CompX's
variable-rate  revolving  bank credit  agreement.  The  remaining  variable rate
indebtedness outstanding at December 31, 2004 and 2005 is not material.

     Foreign  currency  exchange  rates.  The  Company is exposed to market risk
arising  from  changes  in  foreign  currency  exchange  rates  as a  result  of
manufacturing  and  selling  its  products  worldwide.  Earnings  are  primarily
affected by  fluctuations  in the value of the U.S. dollar relative to the euro,
the Canadian dollar and the New Taiwan dollar.

     Certain of the Company's  sales  generated by its non-U.S.  operations  are
denominated in U.S.  dollars.  The Company  periodically  uses currency  forward
contracts  to  manage a very  nominal  portion  of  foreign  exchange  rate risk
associated  with  receivables  denominated in a currency other than the holder's
functional  currency or similar exchange rate risk associated with future sales.
The Company  has not entered  into these  contracts  for trading or  speculative
purposes in the past, nor does the Company  currently  anticipate  entering into
such  contracts for trading or speculative  purposes in the future.  Derivatives
used to hedge  forecasted  transactions  and specific cash flows associated with
foreign currency  denominated  financial  assets and liabilities  which meet the
criteria for hedge accounting are designated as cash flow hedges.  Consequently,
the  effective  portion  of gains  and  losses is  deferred  as a  component  of
accumulated other comprehensive income and is recognized in earnings at the time
the hedged item affects  earnings.  Contracts  that do not meet the criteria for
hedge  accounting  are  marked-to-market  at each  balance  sheet  date with any
resulting  gain or loss  recognized in income  currently as part of net currency
transactions.  To manage such exchange  rate risk,  at December 31, 2005,  CompX
held a series of contracts to exchange an aggregate of U.S.  $6.5 million for an
equivalent amount of Canadian dollars at an exchange rate of Cdn. $1.19 per U.S.
dollar.  Such  contracts  mature through March 2006. The exchange rate was $1.17
per U.S.  dollar at December 31, 2005. At December 31, 2004 CompX held contracts
maturing through March 2005 to exchange an aggregate of U.S. $7.2 million for an
equivalent amount of Canadian dollars at an exchange rates of Cdn. $1.19 to Cdn.
$1.23 per U.S.  dollar.  At December 31, 2004, the actual exchange rate was Cdn.
$1.21  per U.S.  dollar.  The  estimated  fair  value of such  contracts  is not
material at December 31, 2004 and 2005.

     Marketable  equity  and debt  security  prices.  The  Company is exposed to
market  risk due to changes in prices of the  marketable  securities,  which are
owned.  The fair value of such debt and equity  securities  at December 31, 2004
and 2005 was $75.8 million and $87.1 million, respectively. The potential change
in the  aggregate  fair  value of these  investments,  assuming  a 10% change in
prices,  would be $7.6 million at December 31, 2004 and $8.7 million at December
31, 2005. The fair value of restricted  marketable  debt  securities at December
31,  2004  and 2005 was  $13.3  million  and  $9.3  million,  respectively.  The
potential change in the aggregate fair value of these investments assuming a 10%
change in prices  would be $1.3  million at December  31,  2004 and  $930,000 at
December 31, 2005.

     Other. The Company believes there may be a certain amount of incompleteness
in the sensitivity  analyses  presented  above.  For example,  the  hypothetical
effect of changes in interest rates discussed above ignores the potential effect
on other  variables  which affect the Company's  results of operations  and cash
flows,  such as demand for the  Company's  products,  sales  volumes and selling
prices and operating  expenses.  Contrary to the above  assumptions,  changes in
interest  rates rarely result in  simultaneous  parallel  shifts along the yield
curve. Accordingly,  the amounts presented above are not necessarily an accurate
reflection  of the  potential  losses  the  Company  would  incur  assuming  the
hypothetical changes in market prices were actually to occur.

     The above  discussion and estimated  sensitivity  analysis  amounts include
forward-looking  statements of market risk which assume hypothetical  changes in
market prices.  Actual future market  conditions  will likely differ  materially
from such assumptions.  Accordingly,  such forward-looking statements should not
be  considered  to be  projections  by the  Company of future  events,  gains or
losses.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

     The information  called for by this Item is contained in a separate section
of this Annual Report.  See "Index of Financial  Statements and Schedules" (page
F-1).

ITEM  9.  CHANGES  IN AND  DISAGREEMENTS  WITH  ACCOUNTANTS  ON  ACCOUNTING  AND
FINANCIAL DISCLOSURE

     None.

ITEM 9A. CONTROLS AND PROCEDURES

     Remediation of Prior Material  Weakness.  A material  weakness is a control
deficiency, or a combination of control deficiencies,  that results in more than
a remote  likelihood  that a  material  misstatement  of the  annual or  interim
financial  statements  will  not be  prevented  or  detected.  The  Company  has
previously  concluded  that as of  December  31,  2004 and March 31, June 30 and
September  30, 2005,  the Company did not maintain  effective  controls over the
accounting for income taxes, including the determination and reporting of income
taxes  payable to  affiliates,  deferred  income  tax  assets  and  liabilities,
deferred  income tax asset  valuation  allowance,  and the  provision for income
taxes. Specifically, the Company did not have adequate personnel with sufficient
knowledge of income tax accounting and reporting.  Additionally, the Company did
not maintain  effective controls over the review and monitoring of the accuracy,
completeness  and  valuation of the  components  of the income tax provision and
related deferred income taxes,  and income taxes payable  resulting in errors in
(i) the accounting for the income tax effect of the difference  between book and
income tax basis of the  Company's  investment  in Kronos  Worldwide,  Inc.,  an
equity-method  investment  of the Company as of December 31, 2004,  (ii) current
and  deferred  income taxes  related to the  Company's  distributions  of Kronos
common stock to the Company's stockholders and (iii) current and deferred income
taxes related to other items, that were not prevented or detected.  This control
deficiency  resulted in the  previously-reported  restatement  of the  Company's
2002, 2003 and 2004 consolidated  financial statements and 2004 and 2005 interim
financial information.  Additionally,  this control deficiency could result in a
misstatement  of income taxes payable to affiliates,  deferred income tax assets
and  liabilities,  deferred  income  tax  asset  valuation  allowance,  and  the
provision for income taxes that would result in a material  misstatement  to the
Company's annual or interim consolidated  financial statements that would not be
prevented or detected.  Accordingly,  management of the Company  determined that
this control deficiency constituted a material weakness.

     To  remediate  this  material  weakness,  in the  fourth  quarter  of 2005,
additional  resources have been added with a background in accounting for income
taxes in accordance  with SFAS No. 109 and the related  authoritative  guidance.
Management  has  concluded  that the  addition  of such staff has  ensured  that
accounting  principles  generally  accepted  in the  United  States  of  America
("GAAP") has been  appropriately  applied with  respect to the  calculation  and
classification  within  the  consolidated  financial  statements  of income  tax
provisions and related  current and deferred  income tax accounts.  Accordingly,
the Company  has  concluded  that this  material  weakness  no longer  exists at
December 31, 2005.

     Evaluation of Disclosure  Controls and Procedures.  The Company maintains a
system of disclosure controls and procedures.  The term "disclosure controls and
procedures," as defined by Exchange Act Rule 13a-15(e), means controls and other
procedures that are designed to ensure that information required to be disclosed
in the reports that the Company files or submits to the SEC under the Securities
Exchange Act of 1934, as amended (the "Act"), is recorded, processed, summarized
and  reported,  within the time periods  specified in the SEC's rules and forms.
Disclosure  controls and procedures include,  without  limitation,  controls and
procedures  designed to ensure that information  required to be disclosed by the
Company  in the  reports  that it files or  submits  to the SEC under the Act is
accumulated  and  communicated  to  the  Company's  management,   including  its
principal  executive  officer and its principal  financial  officer,  or persons
performing  similar  functions,  as appropriate to allow timely  decisions to be
made regarding  required  disclosure.  Each of Harold C. Simmons,  the Company's
President and Chief Executive  Officer,  and Gregory M. Swalwell,  the Company's
Vice  President  and Chief  Financial  Officer,  has  evaluated  the  design and
operating  effectiveness of the Company's  disclosure controls and procedures as
of December 31, 2005. Based upon their evaluation, these executive officers have
concluded that the Company's disclosure controls and procedures are effective as
of December 31, 2005.

     Scope of Management's Report on Internal Control Over Financial  Reporting.
The Company also maintains internal control over financial  reporting.  The term
"internal  control over  financial  reporting,"  as defined by Exchange Act Rule
13a-15(f),  means a  process  designed  by,  or under the  supervision  of,  the
Company's  principal  executive and  principal  financial  officers,  or persons
performing similar functions,  and effected by the Company's board of directors,
management and other personnel,  to provide reasonable  assurance  regarding the
reliability of financial  reporting and the preparation of financial  statements
for  external  purposes  in  accordance  with  generally   accepted   accounting
principles, and includes those policies and procedures that:

o    Pertain to the maintenance of records that in reasonable  detail accurately
     and fairly reflect the  transactions  and dispositions of the assets of the
     Company,
o    Provide reasonable assurance that transactions are recorded as necessary to
     permit  preparation  of financial  statements in accordance  with GAAP, and
     that  receipts  and  expenditures  of the  Company  are being  made only in
     accordance with  authorizations of management and directors of the Company,
     and
o    Provide reasonable  assurance  regarding  prevention or timely detection of
     unauthorized  acquisition,  use or disposition of the Company's assets that
     could  have a  material  effect  on the  Company's  Consolidated  Financial
     Statements.

     Section  404 of the  Sarbanes-Oxley  Act of 2002  requires  the  Company to
include a management report on internal control over financial reporting in this
Annual Report on Form 10-K for the year ended  December 31, 2005.  The Company's
independent  registered  public  accounting  firm is also  required to audit the
Company's internal control over financial reporting as of December 31, 2005.

     As permitted by the SEC, the Company's  assessment of internal control over
financial  reporting  excludes (i) internal control over financial  reporting at
its equity method  investees and (ii) internal  control over the  preparation of
the Company's financial statement schedules required by Article 12 of Regulation
S-X. However,  our assessment of internal control over financial  reporting with
respect to the Company's  equity method  investees did include our controls over
the  recording of amounts  related to our  investments  that are recorded in our
consolidated  financial  statements,  including  controls  over the selection of
accounting  methods  for our  investments,  the  recognition  of  equity  method
earnings  and losses  and the  determination,  valuation  and  recording  of our
investment account balances.

     Management's  Report on Internal  Control  Over  Financial  Reporting.  The
Company's  management is responsible for establishing  and maintaining  adequate
internal control over financial  reporting,  as such term is defined in Exchange
Act Rules 13a-15(f) and 15d-15(f). The Company's evaluation of the effectiveness
of its  internal  control  over  financial  reporting is based upon the criteria
established in Internal  Control - Integrated  Framework issued by the Committee
of Sponsoring  Organizations  of the Treadway  Commission  (COSO).  Based on the
Company's  evaluation  under  that  framework,  management  of the  Company  has
concluded  that the  Company's  internal  control over  financial  reporting was
effective as of December 31, 2005.

     PricewaterhouseCoopers  LLP, the independent  registered  public accounting
firm that has audited the Company's  consolidated  financial statements included
in this Annual Report, has audited management's  assessment of the effectiveness
of the Company's  internal  control over financial  reporting as of December 31,
2005,  as stated in their report which is included in this Annual Report on Form
10-K.

     Changes  in  Internal  Control  Over  Financial  Reporting.  Other than the
remediation of the material weakness discussed above, there have been no changes
to the Company's  internal  control over financial  reporting during the quarter
ended December 31, 2005 that has materially affected, or is reasonably likely to
materially affect, the Company's internal control over financial reporting.

     Certifications.  The  Company's  chief  executive  officer is  required  to
annually  file a  certification  with  the New  York  Stock  Exchange  ("NYSE"),
certifying  the  Company's  compliance  with the  corporate  governance  listing
standards of the NYSE.  During 2005, the Company's chief executive officer filed
such annual certification with the NYSE. The 2005 certification was qualified in
that,  while the Company had publicly  disclosed  in its latest proxy  statement
that the audit  committee  chairman  presided  at  meetings  of its  independent
directors and how its  stockholders  might  communicate  directly with the audit
committee  chairman,  it had not publicly disclosed how other interested parties
could communicate with the presiding  director of the  non-management  directors
and had  not  established  procedures  as to who  presided  at  meetings  of the
non-management  directors. The Company remediated this qualification by amending
its  corporate  governance  guidelines  on October 27, 2005 and filing a Current
Report on Form 8-K with the SEC on November 30, 2005  disclosing  that the audit
committee chairman presided at meetings of the non-management  directors and how
stockholders and other interested  parties might  communicate with the presiding
director.  The Company's chief executive officer and chief financial officer are
also required to, among other things, quarterly file certifications with the SEC
regarding  the  quality of the  Company's  public  disclosures,  as  required by
Section  302 of the  Sarbanes-Oxley  Act of  2002.  The  certifications  for the
quarter  ended  December  31, 2004 have been filed as exhibits  31.1 and 31.2 to
this Annual Report on Form 10-K.

ITEM 9B. OTHER INFORMATION

     Not applicable.

                                    PART III

ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

     The  information  required by this Item is incorporated by reference to the
Company's  definitive  Proxy  Statement  to be filed  with the SEC  pursuant  to
Regulation  14A within 120 days after the end of the fiscal year covered by this
report (the "NL Proxy Statement").

ITEM 11. EXECUTIVE COMPENSATION

     The  information  required by this Item is incorporated by reference to the
NL Proxy Statement.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

     The  information  required by this Item is incorporated by reference to the
NL Proxy Statement.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

     The  information  required by this Item is incorporated by reference to the
NL Proxy Statement. See also Note 17 to the Consolidated Financial Statements.

ITEM 14. PRINCIPAL ACCOUNTING FEES AND SERVICES

     The Information required by the Item is incorporated by reference to the NL
Proxy Statement.



                                     PART IV

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(a)  and (c)   Financial Statements and Schedules

               The Registrant

               The  consolidated  financial  statements  and  schedules  of  the
               Registrant   listed  on  the  accompanying   Index  of  Financial
               Statements and Schedules (see page F-1) are filed as part of this
               Annual Report.

               50%-or-less persons

               The  consolidated  financial  statements of Kronos  (36%-owned at
               December 31, 2005) are  incorporated by reference in Exhibit 99.1
               of this Annual Report  pursuant to Rule 3-09 of  Regulation  S-X.
               Management's  Report on Internal Control Over Financial Reporting
               of Kronos is not included as part of Exhibit 99.1. The Registrant
               is not  required  to  provide  any other  consolidated  financial
               statements pursuant to Rule 3-09 of Regulation S-X

     (b)       Exhibits

               Included as exhibits are the items  listed in the Exhibit  Index.
               NL will furnish a copy of any of the  exhibits  listed below upon
               payment  of  $4.00  per  exhibit  to  cover  the  costs  to NL of
               furnishing  the  exhibits.  Pursuant  to Item  601(b)(4)(iii)  of
               Regulation S-K, any instrument  defining the rights of holders of
               long-term   debt   issues   and  other   agreements   related  to
               indebtedness which do not exceed 10% of consolidated total assets
               as of December 31, 2005 will be furnished to the Commission  upon
               request.

               The Company will also furnish, without charge, a copy of its Code
               of  Business  Conduct  and  Ethics,  as  adopted  by the board of
               directors on February  19,  2004,  upon  request.  Such  requests
               should be directed to the  attention of the  Company's  Corporate
               Secretary at the Company's  corporate offices located at 5430 LBJ
               Freeway, Suite 1700, Dallas, Texas 75240.


Item No.                          Exhibit Index
- --------                          -------------

2.1       Form of Distribution Agreement between NL Industries,  Inc. and Kronos
          Worldwide,  Inc. -  incorporated  by  reference  to Exhibit 2.1 to the
          Kronos  Worldwide,  Inc.  Registration  Statement on Form 10 (File No.
          001-31763).

3.1       By-Laws,  as amended on June 28, 1990 -  incorporated  by reference to
          Exhibit  3.1 to the  Registrant's  Annual  Report on Form 10-K for the
          year ended December 31, 1990.

3.2       Amendment  to the Amended and Restated  By-Laws,  as of June 28, 1990,
          executed  December 8, 2003 - incorporated  by reference to Exhibit 3.2
          to the  Registrant's  Annual  Report on Form  10-K for the year  ended
          December 31, 2003.

3.3       Certificate of Amended and Restated Certificate of Incorporation dated
          June  28,  1990  -  incorporated  by  reference  to  Exhibit  1 to the
          Registrant's  Proxy  Statement on Schedule 14A for the annual  meeting
          held on June 28, 1990.

4.1       Indenture  governing the 8.875% Senior  Secured Notes due 2009,  dated
          June 28, 2002, between Kronos International,  Inc. and The Bank of New
          York,  as Trustee -  incorporated  by  reference to Exhibit 4.1 to the
          Registrant's  Quarterly Report on Form 10-Q for the quarter ended June
          30, 2002.

4.2       Form of  certificate of 8.875% Senior Secured Notes due 2009 of Kronos
          International,   Inc.  (included  as  Exhibit  A  to  Exhibit  4.1)  -
          incorporated by reference to Exhibit 4.2 to the Registrant's Quarterly
          Report on Form 10-Q for the quarter ended June 30, 2002.

4.3       Form of  certificate of 8.875% Senior Secured Notes due 2009 of Kronos
          International,   Inc.  (included  as  Exhibit  B  to  Exhibit  4.1)  -
          incorporated by reference to Exhibit 4.3 to the Registrant's Quarterly
          Report on Form 10-Q for the quarter ended June 30, 2002.

4.4       Purchase Agreement,  dated June 19, 2002, among Kronos  International,
          Inc.,  Deutsche  Bank AG London,  Dresdner  Bank AG London  Branch and
          Commerzbank  Aktiengesellschaft,   London  Branch  -  incorporated  by
          reference to Exhibit 4.4 to the Registrant's  Quarterly Report on Form
          10-Q for the quarter ended June 30, 2002.

4.5       Purchase   Agreement   dated   November   18,  2004   between   Kronos
          International,  Inc. and  Deutsche  Bank AG London -  incorporated  by
          reference  to Exhibit 4.4 to the Current  Report on Form 8-K of Kronos
          International, Inc. (File No. 333-100047) dated November 24, 2004.

4.6       Form of Registration  Rights Agreement,  dated as of November 26, 2004
          between  Kronos  International,  Inc.  and  Deutsche  Bank AG London -
          incorporated by reference to Exhibit 4.5 to the Current Report on Form
          8-K of Kronos International, Inc. (File No. 333-100047) dated November
          24, 2004.

4.7       Collateral  Agency  Agreement,  dated June 28, 2002, among The Bank of
          New  York,   U.S.  Bank,  N.A.  and  Kronos   International,   Inc.  -
          incorporated by reference to Exhibit 4.6 to the Registrant's Quarterly
          Report on Form 10-Q for the quarter ended June 30, 2002.

4.8       Security Over Shares  Agreement,  dated June 28, 2002,  between Kronos
          International,  Inc.  and  The  Bank  of New  York -  incorporated  by
          reference to Exhibit 4.7 to the Registrant's  Quarterly Report on Form
          10-Q for the quarter ended June 30, 2002.

4.9       Pledge of Shares (shares in Kronos Denmark ApS),  dated June 28, 2002,
          between Kronos International,  Inc. and U.S. Bank, N.A. - incorporated
          by reference to Exhibit 4.8 to the  Registrant's  Quarterly  Report on
          Form 10-Q for the quarter ended June 30, 2002.

4.10      Pledge  Agreement  (shares in Societe  Industrielle  du Titane  S.A.),
          dated June 28, 2002, between Kronos International, Inc. and U.S. Bank,
          N.A. -  incorporated  by reference to Exhibit 4.9 to the  Registrant's
          Quarterly Report on Form 10-Q for the quarter ended June 30, 2002.

4.11      Partnership  Interest  Pledge  Agreement  (relating  to fixed  capital
          contribution in Kronos Titan GmbH & Co.), dated June 28, 2002, between
          Kronos  International,  Inc. and U.S.  Bank,  N.A. -  incorporated  by
          reference to Exhibit 4.10 to the Registrant's Quarterly Report on Form
          10-Q for the quarter ended June 30, 2002.

4.12      Stock Purchase  Agreement dated September 24, 2004 between Valhi, Inc.
          and Valcor, Inc., as sellers,  and NL Industries,  Inc. as purchaser -
          incorporated by reference to Exhibit 10.1 to the Registrant's  Current
          Report on Form 8-K as of September 24, 2004. (The disclosure  schedule
          attachment to this Exhibit 4.12 has not been filed; upon request,  the
          Registrant will furnish  supplementally to the Securities and Exchange
          Commission a copy of this attachment.)

10.1      Euro 80,000,000 Facility Agreement,  dated June 25, 2002, among Kronos
          Titan GmbH & Co. OHG,  Kronos Europe  S.A./N.V.,  Kronos Titan A/S and
          Titania A/S, as borrowers,  Kronos Titan GmbH & Co. OHG, Kronos Europe
          S.A./N.V.  and Kronos Norge AS, as guarantors,  Kronos Denmark ApS, as
          security  provider,  Deutsche  Bank AG,  as  mandated  lead  arranger,
          Deutsche Bank Luxembourg  S.A., as agent and security  agent,  and KBC
          Bank NV, as fronting  bank, and the financial  institutions  listed in
          Schedule 1 thereto,  as lenders - incorporated by reference to Exhibit
          10.1 to the Registrant's Quarterly Report on Form 10-Q for the quarter
          ended June 30, 2002.

10.2      Lease  Contract  dated June 21,  1952,  between  Farbenfabriken  Bayer
          Aktiengesellschaft  and  Titangesellschaft  mit  beschrankter  Haftung
          (German   language   version  and  English   translation   thereof)  -
          incorporated by reference to Exhibit 10.14 to the Registrant's  Annual
          Report on Form 10-K for the year ended December 31, 1985.

10.3      Contract on Supplies and Services  among Bayer AG,  Kronos  Titan-GmbH
          and  Kronos   International,   Inc.   dated  June  30,  1995  (English
          translation from German language document) - incorporated by reference
          to Exhibit 10.1 to the Registrant's  Quarterly Report on Form 10-Q for
          the quarter ended September 30, 1995.

10.4**    Richards  Bay  Slag Sales Agreement dated May 1, 1995 between Richards
          Bay Iron  and  Titanium  (Proprietary)  Limited  and  Kronos,  Inc.  -
          incorporated by reference to Exhibit 10.17 to the Registrant's  Annual
          Report on Form 10-K for the year ended December 31, 1995.

10.5**    Amendment  to Richards  Bay  Slag  Sales  Agreement  dated May 1, 1999
          between  Richards  Bay Iron and  Titanium  (Proprietary)  Limited  and
          Kronos,  Inc. -  incorporated  by  reference  to  Exhibit  10.4 to the
          Registrant's  Annual  Report on Form 10-K for the year ended  December
          31, 1999.

10.6**    Amendment  to  Richards Bay  Slag Sales  Agreement  dated June 1, 2001
          between  Richards  Bay Iron and  Titanium  (Proprietary)  Limited  and
          Kronos,  Inc. -  incorporated  by  reference  to  Exhibit  10.5 to the
          Registrant's  Annual  Report on Form 10-K for the year ended  December
          31, 2001.

10.7**    Amendment to Richards  Bay  Slag Sales  Agreement  dated  December 20,
          2002 between Richards Bay Iron and Titanium  (Proprietary) Limited and
          Kronos,  Inc. -  incorporated  by  reference  to  Exhibit  10.7 to the
          Registrant's  Annual  Report on Form 10-K for the year ended  December
          31, 2002.

10.8*     Amendment to  Richards Bay Slag Sales Agreement dated October 31, 2003
          between  Richards  Bay Iron and  Titanium  (Proprietary)  Limited  and
          Kronos,  Inc. -  incorporated  by reference to Exhibit 10.17 to Kronos
          Worldwide,  Inc.'s  Annual  Report  on Form  10-K for the  year  ended
          December 31, 2004.

10.9      Agreement  between   Sachtleben  Chemie  GmbH  and  Kronos  Titan-GmbH
          effective  December  30, 1986 -  incorporated  by reference to Exhibit
          10.1 of KII's Quarterly Report on Form 10-Q (File No.  333-100047) for
          the quarter ended September 30, 2002.

10.10     Supplementary Agreement to the Agreement of December 30, 1986 between
          Sachtleben  Chemie  GmbH and  Kronos  Titan-GmbH  dated  May 3, 1996 -
          incorporated by reference to Exhibit 10.2 of KII's Quarterly Report on
          Form 10-Q (File No.  333-100047)  for the quarter ended  September 30,
          2002.

10.11     Second  Supplementary  Agreement to the Contract  dated  December 30,
          1986  between  Sachtleben  Chemie  GmbH and  Kronos  Titan-GmbH  dated
          January 8, 2002 -  incorporated  by reference to Exhibit 10.3 of KII's
          Quarterly  Report on Form 10-Q (File No.  333-100047)  for the quarter
          ended September 30, 2002.

10.12     Formation  Agreement  dated as of  October  18,  1993  among  Tioxide
          Americas Inc., Kronos  Louisiana,  Inc. and Louisiana Pigment Company,
          L.P. - incorporated  by reference to Exhibit 10.2 to the  Registrant's
          Quarterly  Report on Form 10-Q for the  quarter  ended  September  30,
          1993.

10.13     Joint Venture  Agreement dated as of October 18, 1993 between Tioxide
          Americas Inc. and Kronos  Louisiana,  Inc. - incorporated by reference
          to Exhibit 10.3 to the Registrant's  Quarterly Report on Form 10-Q for
          the quarter ended September 30, 1993.

10.14     Kronos Offtake  Agreement dated as of October 18, 1993 between Kronos
          Louisiana,  Inc. and Louisiana Pigment Company, L.P. - incorporated by
          reference to Exhibit 10.4 to the Registrant's Quarterly Report on Form
          10-Q for the quarter ended September 30, 1993.

10.15     Amendment No. 1 to Kronos Offtake  Agreement dated as of December 20,
          1995 between Kronos  Louisiana,  Inc. and Louisiana  Pigment  Company,
          L.P. - incorporated by reference to Exhibit 10.22 to the  Registrant's
          Annual Report on Form 10-K for the year ended December 31, 1995.

10.16     Tioxide  Americas  Offtake  Agreement  dated as of October  18,  1993
          between Tioxide Americas Inc. and Louisiana  Pigment  Company,  L.P. -
          incorporated  by  reference  to  Exhibit  10.5  to  the   Registrant's
          Quarterly  Report on Form 10-Q for the  quarter  ended  September  30,
          1993.

10.17     Amendment No. 1 to Tioxide  Americas  Offtake  Agreement  dated as of
          December 20, 1995 between Tioxide Americas Inc. and Louisiana  Pigment
          Company,  L.P. -  incorporated  by reference  to Exhibit  10.24 to the
          Registrant's  Annual  Report on Form 10-K for the year ended  December
          31, 1995.

10.18     TCI/KCI  Output  Purchase  Agreement  dated as of  October  18,  1993
          between Tioxide Canada Inc. and Kronos Canada,  Inc. - incorporated by
          reference to Exhibit 10.6 to the Registrant's Quarterly Report on Form
          10-Q for the quarter ended September 30, 1993.

10.19     TAI/KLA  Output  Purchase  Agreement  dated as of  October  18,  1993
          between   Tioxide   Americas  Inc.  and  Kronos   Louisiana,   Inc.  -
          incorporated  by  reference  to  Exhibit  10.7  to  the   Registrant's
          Quarterly  Report on Form 10-Q for the  quarter  ended  September  30,
          1993.

10.20     Master  Technology  Exchange  Agreement  dated as of October 18, 1993
          among Kronos,  Inc.,  Kronos Louisiana,  Inc.,  Kronos  International,
          Inc.,  Tioxide  Group  Limited and Tioxide  Group  Services  Limited -
          incorporated  by  reference  to  Exhibit  10.8  to  the   Registrant's
          Quarterly  Report on Form 10-Q for the  quarter  ended  September  30,
          1993.

10.21     Parents'  Undertaking  dated  as of  October  18,  1993  between  ICI
          American Holdings Inc. and Kronos, Inc. - incorporated by reference to
          Exhibit 10.9 to the Registrant's Quarterly Report on Form 10-Q for the
          quarter ended September 30, 1993.

10.22     Allocation  Agreement  dated as of October 18, 1993  between  Tioxide
          Americas Inc., ICI American Holdings,  Inc.,  Kronos,  Inc. and Kronos
          Louisiana,  Inc. -  incorporated  by reference to Exhibit 10.10 to the
          Registrant's  Quarterly  Report  on Form  10-Q for the  quarter  ended
          September 30, 1993.

10.23     Form of Director's Indemnity Agreement between NL and the independent
          members of the Board of Directors of NL - incorporated by reference to
          Exhibit 10.20 to the  Registrant's  Annual Report on Form 10-K for the
          year ended December 31, 1987.

10.24*    1989 Long  Term  Performance  Incentive Plan of NL Industries,  Inc. -
          incorporated  by  reference  to  Exhibit B to the  Registrant's  Proxy
          Statement on Schedule 14A for the annual meeting of shareholders  held
          on May 8, 1996.

10.25*    NL Industries,  Inc.  Variable  Compensation  Plan - incorporated by
          reference to Exhibit B to the Registrant's Proxy Statement on Schedule
          14A for the annual meeting of shareholders held on May 9, 2001.

10.26*    NL Industries, Inc. 1992  Non-Employee Director  Stock Option Plan, as
          adopted by the Board of Directors on February 13, 1992 -  incorporated
          by  reference  to Appendix A to the  Registrant's  Proxy  Statement on
          Schedule  14A for the annual  meeting of  shareholders  held April 30,
          1992.

10.27*    NL Industries,  Inc. 1998 Long-Term Incentive Plan - incorporated by
          reference  to  Appendix  A to  the  Registrant's  Proxy  Statement  on
          Schedule  14A for the annual  meeting of  shareholders  held on May 6,
          1998.

10.28*    Form of Kronos  Worldwide,  Inc.  2003  Long-Term  Incentive  Plan -
          incorporated  by reference  to Exhibit  10.4 to the Kronos  Worldwide,
          Inc. Registration Statement on Form 10 (File No. 001-31763).

10.29*    Amended and  Restated  Supplemental  Executive  Retirement  Plan for
          Executives and Officers of NL Industries,  Inc. effective as of May 1,
          2001 - incorporated by reference to Exhibit 10.30 to the  Registrant's
          Annual Report on Form 10-K for the year ended December 31, 2001.

10.30     Insurance  Sharing  Agreement,  effective  January  1,  1990,  by and
          between the Registrant,  NL Insurance, Ltd. (an indirect subsidiary of
          Tremont   Corporation)  and  Baroid   Corporation  -  incorporated  by
          reference to Exhibit 10.20 to the  Registrant's  Annual Report on Form
          10-K for the year ended December 31, 1991.

10.31     Amended Tax Agreement  among NL  Industries,  Inc.,  Valhi,  Inc. and
          Contran  Corporation  effective  November 30, 2004 -  incorporated  by
          reference to Exhibit 10.1 to the  Registrant's  Current Report on Form
          8-K as of November 30, 2004.

10.32     Intercorporate  Services Agreement by and between Contran Corporation
          and the Registrant  effective as of January 1, 2004 - incorporated  by
          reference to Exhibit 10.1 to the Registrant's Quarterly Report on Form
          10-Q for the quarter ended March 31, 2004.

10.33     Intercorporate  Services Agreement by and between Contran Corporation
          and Kronos Worldwide, Inc. - incorporated by reference to Exhibit 10.1
          to the Kronos  Worldwide,  Inc.  Quarterly Report on Form 10-Q for the
          quarter ended March 31, 2004.

10.34     Intercorporate  Services  Agreement between CompX  International Inc.
          and Contran Corporation effective as of January 1, 2004 - incorporated
          by reference to Exhibit 10.2 to the CompX  International  Inc.  Annual
          Report on Form 10-K for the year ended December 31, 2004.

10.35     Revolving  Loan Note dated May 4, 2001 with Harold C. Simmons  Family
          Trust No. 2 and EMS  Financial,  Inc. -  incorporated  by reference to
          Exhibit 10.1 to the Registrant's Quarterly Report on Form 10-Q for the
          quarter ended September 30, 2001.

10.36     Security Agreement dated May 4, 2001 by and between Harold C. Simmons
          Family Trust No. 2 and EMS Financial, Inc. - incorporated by reference
          to Exhibit 10.2 to the Registrant's  Quarterly Report on Form 10-Q for
          the quarter ended September 30, 2001.

10.37     Revolving  Loan Note  Agreement  dated  October 22, 2002 with Tremont
          Corporation as Maker and NL  Industries,  Inc. as Payee - incorporated
          by reference to Exhibit 10.4 to the  Registrant's  Quarterly Report on
          Form 10-Q for the quarter ended September 30, 2002.

10.38     Security  Agreement  dated  October 22,  2002 by and between  Tremont
          Corporation  and NL Industries,  Inc. -  incorporated  by reference to
          Exhibit 10.5 to the Registrant's Quarterly Report on Form 10-Q for the
          quarter ended September 30, 2002.

10.39     Purchase Agreement dated January 4, 2002 by and among Kronos, Inc. as
          the  Purchaser,  and  Big  Bend  Holdings  LLC and  Contran  Insurance
          Holdings,  Inc., as Sellers regarding the sale and purchase of EWI RE,
          Inc. and EWI RE, Ltd. - incorporated  by reference to Exhibit 10.40 to
          the  Registrant's  Annual  Report  on Form  10-K  for the  year  ended
          December 31, 2001.

10.40     Form of Tax Agreement between Valhi, Inc. and Kronos Worldwide, Inc -
          incorporated  by reference  to Exhibit  10.1 to the Kronos  Worldwide,
          Inc. Registration Statement on Form 10 (File No. 001-31763).

10.41     Amendment  dated  August 11, 2003 to the  Contract  on  Supplies  and
          Services  among  Bayer AG,  Kronos  Titan-GmbH  & Co.  OHG and  Kronos
          International  (English  translation  of German  language  document) -
          incorporated  by reference to Exhibit  10.32 to the Kronos  Worldwide,
          Inc. Registration Statement on Form 10 (File No. 001-31763).

10.42     Insurance sharing agreement dated October 30, 2003 by and among CompX
          International  Inc.,  Contran   Corporation,   Keystone   Consolidated
          Industries,  Inc.,  Kronos  Worldwide,  Inc.,  Titanium  Metals Corp.,
          Valhi,  Inc. and the Registrant - incorporated by reference to Exhibit
          10.48 to the  Registrant's  Annual  Report  on Form  10-K for the year
          ended December 31, 2003.

10.43*    Summary  of  Consulting  Arrangement  beginning  August 1,  2003,  as
          amended  between  Lawrence  A.  Wigdor  and Kronos  Worldwide,  Inc. -
          incorporated  by reference  to Exhibit  10.2 to the Kronos  Worldwide,
          Inc.  Quarterly  Report on Form 10-Q for the  period  ended  March 31,
          2004.

10.44     First Amendment  Agreement,  dated  September 3, 2004,  Relating  to a
          Facility Agreement dated June 25, 2002 among Kronos Titan GmbH, Kronos
          Europe  S.A./N.V.,  Kronos  Titan AS and Titania  A/S,  as  borrowers,
          Kronos Titan GmbH,  Kronos  Europe  S.A./N.V.  and Kronos Norge AS, as
          guarantors,  Kronos Denmark ApS, as security  provider,  with Deutsche
          Bank Luxembourg  S.A.,  acting as agent - incorporated by reference to
          Exhibit  10.8 to the  Registration  Statement  on Form  S-1 of  Kronos
          Worldwide, Inc. (File No. 333-119639).

10.45     Stock Purchase Agreement dated September 24, 2004 between Valhi, Inc.
          and Valcor, Inc., as sellers,  and NL Industries,  Inc. as purchaser -
          incorporated  by reference  to Exhibit  10.1 to the Current  Report on
          Form 8-K of the Registrant dated September 24, 2004.

10.46     Promissory  Note dated  September 24, 2004 in the original  principal
          amount of $31,422,500.00  payable to the order of NL Industries,  Inc.
          and executed by Kronos Worldwide,  Inc. - incorporated by reference to
          Exhibit 10.2 to the Current Report on Form 8-K of the Registrant dated
          September 24, 2004.

10.47     Promissory  Note dated  September 24, 2004 in the original  principal
          amount of  $162,500,000.00  payable to the order of Valcor,  Inc.  and
          executed by Kronos  Worldwide,  Inc. -  incorporated  by  reference to
          Exhibit 99.1 to the Current Report on Form 8-K of the Registrant dated
          September 24, 2004.

10.48     Promissory  Note dated  September 24, 2004 in the original  principal
          amount  of  $6,077,500.00  payable  to the order of  Valhi,  Inc.  and
          executed by Kronos  Worldwide,  Inc. -  incorporated  by  reference to
          Exhibit 99.2 to the Current Report on Form 8-K of the Registrant dated
          September 24, 2004.

10.49     Subscription  agreement  executed on October 5, 2004 but effective as
          of October 1, 2004 among NL Industries, Inc., TIMET Finance Management
          Company and CompX Group,  Inc. - incorporated  by reference to Exhibit
          99.1 to the Current Report on Form 8-K of the Registrant dated October
          5, 2004.

10.50     Voting  agreement  executed  on October 5, 2004 but  effective  as of
          October 1, 2004 among NL Industries,  Inc.,  TIMET Finance  Management
          Company and CompX Group,  Inc. - incorporated  by reference to Exhibit
          99.2 to the Current Report on Form 8-K of the Registrant dated October
          5, 2004.

10.51     Subscription  Agreement  executed on October 5, 2004 but effective as
          of October 1, 2004 among NL Industries, Inc., TIMET Finance Management
          Company and CompX Group,  Inc. - incorporated  by reference to Exhibit
          99.1 to the  Registrant's  Current Report on Form 8-K as of October 5,
          2004.  (Not all of the exhibits to this Exhibit 10.51 have been filed;
          upon  request,  the  Registrant  will  furnish  supplementally  to the
          Securities and Exchange Commission a copy of the omitted exhibits.)

10.52     Voting  Agreement  executed  on October 5, 2004 but  effective  as of
          October 1, 2004 among NL Industries,  Inc.,  TIMET Finance  Management
          Company and CompX Group,  Inc. - incorporated  by reference to Exhibit
          99.2 to the  Registrant's  Current Report on Form 8-K as of October 5,
          2004.

10.53     Certificate of Incorporation  of CompX Group,  Inc. - incorporated by
          reference to Exhibit 99.3 to the  Registrant's  Current Report on Form
          8-K as of October 5, 2004.

10.54     Tax Agreement executed on October 5, 2004 but effective as of October
          1, 2004  among NL  Industries,  Inc.,  Contran  Corporation  and CompX
          International  Inc. - incorporated by reference to Exhibit 99.4 to the
          Registrant's Current Report on Form 8-K as of October 5, 2004.

10.55     Intercorporate  Services  Agreement between CompX  International Inc.
          and Contran Corporation effective as of January 1, 2003 - incorporated
          by reference to Exhibit 10.1 to the CompX International Inc. Quarterly
          Report on Form 10-Q for the  quarter  ended  June 30,  2003  (File No.
          1-13905).

10.56*    CompX   International   Inc.  1997   Long-Term   Incentive  Plan  -
          incorporated  by reference to Exhibit 10.2 to the CompX  International
          Inc. Registration Statement on Form S-1 (File No. 1-13905).

10.57     Tax Sharing Agreement among CompX  International  Inc., Valcor,  Inc.
          and  Valhi,  Inc.  dated  as of  January  2,  1998 -  incorporated  by
          reference  to  Exhibit  10.4 to the  Registration  Statement  of CompX
          International Inc. on Form S-1 (File No. 1-13905).

10.58     Second  Amendment  Agreement  Relating to a Facility  Agreement dated
          June 25, 2002 executed as of June 14, 2005 by and among  Deutsche Bank
          AG, as mandated lead arranger, Deutsche Bank Luxembourg S.A. as agent,
          the participating lenders,  Kronos Titan GmbH, Kronos Europe S.A./N.V,
          Kronos Titan AS, Kronos Norge AS,  Titania AS and Kronos Denmark ApS -
          incorporated  by reference  to Exhibit  10.1 of Kronos  International,
          Inc.s'  Form 8-K dated June 14,  2005.  Certain  schedules,  exhibits,
          annexes and similar  attachments  to this Exhibit  10.58 have not been
          filed; upon request, the Reporting Persons will furnish supplementally
          to the Commission a copy of any omitted exhibit, annex or attachment.

21.1      Subsidiaries of the Registrant.

23.1      Consent   of   PricewaterhouseCoopers   LLP  with   respect   to  NL's
          consolidated financial statements.

23.2      Consent  of   PricewaterhouseCoopers   LLP  with  respect  to  Kronos'
          consolidated financial statements.

31.1      Certification

31.2      Certification

32.1      Certification

99.1      Consolidated   financial  statements  of  Kronos  Worldwide,   Inc.  -
          incorporated  by reference to Kronos' Annual Report on Form 10-K (File
          No. 1-31763) for the year ended December 31, 2005.


All  documents  in the  Exhibit  Index  above  that  have been  incorporated  by
reference were previously filed by the Registrant under SEC File Number 1-640.

*    Management contract, compensatory plan or arrangement.

**   Portions  of the  exhibit  have been  omitted  pursuant  to a  request  for
     confidential treatment.


                                   SIGNATURES


     Pursuant  to the  requirements  of  Section  13 or 15(d) 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.

                                            NL Industries, Inc.
                                              (Registrant)


                                            By:/s/ Harold C. Simmons
                                               ----------------------------
                                               Harold C. Simmons
                                               March 16, 2006
                                              (Chairman of the Board and
                                               Chief Executive Officer)



     Pursuant to the  requirements of the Securities  Exchange Act of 1934, this
report  has  been  signed  below  by the  following  persons  on  behalf  of the
Registrant and in the capacities and on the dates indicated:



/s/ Harold C. Simmons                       /s/ Steven L. Watson
- --------------------------------            ---------------------------------
Harold C. Simmons, March 16, 2006           Steven L. Watson, March 16, 2006
(Chairman of the Board and Chief            (Director)
  Executive Officer)



/s/ Thomas P. Stafford                      /s/ Glenn R. Simmons
- --------------------------------            ---------------------------------
Thomas P. Stafford, March 16, 2006          Glenn R. Simmons, March 16, 2006
(Director)                                                    (Director)



/s/ C. H. Moore, Jr.                        /s/ Gregory M. Swalwell
- --------------------------------            ---------------------------------
C. H. Moore, Jr., March 16, 2006            Gregory M. Swalwell, March 16, 2006
  (Director)                                  (Vice President,  Finance and
                                              Chief Financial Officer, Principal
                                              Financial Officer)

/s/ Terry N. Worrell                        /s/ James W. Brown
- --------------------------------            ---------------------------------
Terry N. Worrell, March 16, 2006            James W. Brown, March 16, 2006
(Director)                                  (Vice President and Controller,
                                             Principal Accounting Officer)









                               NL Industries, Inc.

                           Annual Report on Form 10-K

                            Items 8, 15(a) and 15(d)

                   Index of Financial Statements and Schedules


Financial Statements                                                      Page

  Report of Independent Registered Public Accounting Firm                 F-2

  Consolidated Balance Sheets - December 31, 2004 and 2005                F-4

  Consolidated Statements of Operations -
   Years ended December 31, 2003, 2004 and 2005                           F-6

  Consolidated Statements of Comprehensive Income -
   Years ended December 31, 2003, 2004 and 2005                           F-8

  Consolidated Statements of Stockholders' Equity -
   Years ended December 31, 2003, 2004 and 2005                           F-9

  Consolidated Statements of Cash Flows -
   Years ended December 31, 2003, 2004 and 2005                           F-10

  Notes to Consolidated Financial Statements                              F-13


Financial Statement Schedules

  Schedule I - Condensed Financial Information of Registrant              S-1

  Schedule II - Valuation and Qualifying Accounts                         S-5

  Schedules III and IV are omitted because they are not applicable.




             REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


To the Stockholders and Board of Directors of NL Industries, Inc.:

     We have completed integrated audits of NL Industries,  Inc.'s 2004 and 2005
consolidated  financial  statements  and of its internal  control over financial
reporting  as of  December  31,  2005,  and an audit  of its  2003  consolidated
financial  statements  in accordance  with the  standards of the Public  Company
Accounting Oversight Board (United States).  Our opinions,  based on our audits,
are presented below.

Consolidated financial statements and financial statement schedules
- -------------------------------------------------------------------

     In  our  opinion,  the  consolidated  financial  statements  listed  in the
accompanying  index  present  fairly,  in all material  respects,  the financial
position of NL Industries,  Inc. and its  subsidiaries  at December 31, 2004 and
2005,  and the results of their  operations and their cash flows for each of the
three years in the period ended December 31, 2005 in conformity  with accounting
principles  generally accepted in the United States of America. In addition,  in
our opinion,  the financial statement schedules listed in the accompanying index
present fairly, in all material respects, the information set forth therein when
read in conjunction with the related consolidated  financial  statements.  These
financial statements and financial statement schedules are the responsibility of
the Company's  management.  Our responsibility is to express an opinion on these
financial  statements and financial  statement schedules based on our audits. We
conducted our audits of these statements in accordance with the standards of the
Public Company  Accounting  Oversight  Board (United  States).  Those  standards
require that we plan and perform the audit to obtain reasonable  assurance about
whether the financial statements are free of material misstatement.  An audit of
financial  statements includes examining,  on a test basis,  evidence supporting
the  amounts  and  disclosures  in  the  financial  statements,   assessing  the
accounting  principles  used and significant  estimates made by management,  and
evaluating the overall  financial  statement  presentation.  We believe that our
audit provides a reasonable basis for our opinion.

Internal control over financial reporting
- -----------------------------------------

     Also, in our opinion,  management's  assessment,  included in  Management's
Report on Internal  Control Over Financial  Reporting  appearing  under Item 9A,
that the Company maintained  effective internal control over financial reporting
as of  December  31, 2005 based on criteria  established  in Internal  Control -
Integrated Framework issued by the Committee of Sponsoring  Organizations of the
Treadway Commission ("COSO"), is fairly stated, in all material respects,  based
on those criteria.  Furthermore,  in our opinion, the Company maintained, in all
material  respects,  effective  internal control over financial  reporting as of
December  31,  2005,  based  on  criteria  established  in  Internal  Control  -
Integrated Framework issued by the COSO. The Company's management is responsible
for maintaining  effective internal control over financial reporting and for its
assessment of the  effectiveness of internal  control over financial  reporting.
Our responsibility is to express opinions on management's  assessment and on the
effectiveness of the Company's  internal control over financial  reporting based
on our  audit.  We  conducted  our  audit of  internal  control  over  financial
reporting in  accordance  with the  standards of the Public  Company  Accounting
Oversight  Board  (United  States).  Those  standards  require  that we plan and
perform  the  audit to  obtain  reasonable  assurance  about  whether  effective
internal  control  over  financial  reporting  was  maintained  in all  material
respects.  An  audit of  internal  control  over  financial  reporting  includes
obtaining  an  understanding  of  internal  control  over  financial  reporting,
evaluating  management's  assessment,  testing  and  evaluating  the  design and
operating   effectiveness  of  internal  control,   and  performing  such  other
procedures as we consider  necessary in the  circumstances.  We believe that our
audit provides a reasonable basis for our opinions.

     A company's internal control over financial reporting is a process designed
to provide reasonable assurance regarding the reliability of financial reporting
and the preparation of financial  statements for external purposes in accordance
with generally accepted accounting principles. A company's internal control over
financial  reporting  includes those policies and procedures that (i) pertain to
the  maintenance  of records that, in reasonable  detail,  accurately and fairly
reflect  the  transactions  and  dispositions  of the  assets  of  the  company,
(ii) provide reasonable assurance that transactions are recorded as necessary to
permit preparation of financial statements in accordance with generally accepted
accounting  principles,  and that receipts and  expenditures  of the company are
being made only in accordance with authorizations of management and directors of
the company;  and (iii) provide  reasonable  assurance  regarding  prevention or
timely  detection  of  unauthorized  acquisition,  use,  or  disposition  of the
company's assets that could have a material effect on the financial statements.

     Because  of its  inherent  limitations,  internal  control  over  financial
reporting  may not prevent or detect  misstatements.  Also,  projections  of any
evaluation  of  effectiveness  to future  periods  are  subject to the risk that
controls may become  inadequate  because of changes in  conditions,  or that the
degree of compliance with the policies or procedures may deteriorate.




PricewaterhouseCoopers LLP



Dallas, Texas
March 16, 2006








                      NL INDUSTRIES, INC. AND SUBSIDIARIES

                           CONSOLIDATED BALANCE SHEETS

                           December 31, 2004 and 2005

                      (In thousands, except per share data)



               ASSETS
                                                              2004               2005
                                                              ----               ----

 Current assets:
                                                                       
   Cash and cash equivalents                              $   99,185         $   76,912
   Restricted cash and cash equivalents                        7,810              4,327
   Restricted marketable debt securities                       9,446              9,265
   Accounts and other receivables                             24,302             23,392
   Refundable income taxes                                        32                424
   Receivable from affiliates                                  1,681              3,291
   Inventories                                                28,781             22,538
   Prepaid expenses                                            1,332              1,718
   Deferred income taxes                                      13,604              7,295
                                                          ----------         ----------

       Total current assets                                  186,173            149,162
                                                          ----------         ----------

 Other assets:
     Marketable equity securities                             75,793             87,120
     Restricted marketable debt securities                     3,848                  -
     Investment in Kronos Worldwide, Inc.                    175,578            146,774
     Receivable from affiliate                                10,000                  -
     Deferred income taxes                                       545                  4
     Goodwill                                                 20,772             27,240
     Other assets                                              3,715              5,499
                                                          ----------         ----------

       Total other assets                                    290,251            266,637
                                                          ----------         ----------

 Property and equipment:
   Land                                                        5,356              8,511
   Buildings                                                  26,877             28,001
   Equipment                                                 127,044            110,917
   Construction in progress                                    2,431              2,015
                                                          ----------         ----------
                                                             161,708            149,444
   Less accumulated depreciation                              86,490             80,540
                                                          ----------         ----------

       Net property and equipment                             75,218             68,904
                                                          ----------         ----------

                                                          $  551,642         $  484,703
                                                          ==========         ==========











                      NL INDUSTRIES, INC. AND SUBSIDIARIES

                     CONSOLIDATED BALANCE SHEETS (CONTINUED)

                           December 31, 2004 and 2005

                      (In thousands, except per share data)


    LIABILITIES AND STOCKHOLDERS' EQUITY
                                                              2004               2005
                                                              ----               ----

 Current liabilities:
                                                                       
   Current maturities of long-term debt                   $       42         $      171
   Accounts payable                                           14,649             11,079
   Accrued liabilities                                        23,134             29,859
   Accrued environmental costs                                16,570             13,302
   Payable to affiliates                                         391                982
   Income taxes                                                3,661                599
   Deferred income taxes                                      23,842               -
                                                          ----------         ----------

       Total current liabilities                              82,289             55,992
                                                          ----------         ----------

 Noncurrent liabilities:
   Long-term debt                                                 85              1,425
   Accrued pension costs                                       7,968                942
   Accrued postretirement benefits cost                       10,572             10,141
   Accrued environmental costs                                51,247             41,645
   Deferred income taxes                                     103,420            107,000
   Other                                                       4,028              2,246
                                                          ----------         ----------

       Total noncurrent liabilities                          177,320            163,399
                                                          ----------         ----------

 Minority interest                                            58,404             45,630
                                                          ----------         ----------

 Stockholders' equity:
   Preferred stock, no par value; 5,000 shares
    authorized; none issued                                     -                  -
   Common stock, $.125 par value; 150,000 shares
    authorized; 48,440 and 48,562 shares
    issued and outstanding                                     6,054              6,070
   Additional paid-in capital                                369,728            363,233
   Retained earnings                                            -                  -
   Accumulated other comprehensive income:
     Marketable securities                                    26,783             34,084
     Currency translation                                   (135,729)          (141,018)
     Pension liabilities                                     (33,207)           (42,687)
                                                          ----------         ----------

       Total stockholders' equity                            233,629            219,682
                                                          ----------         ----------

                                                          $  551,642         $  484,703
                                                          ==========         ==========



Commitments and contingencies (Notes 12, 15 and 19)



          See accompanying notes to consolidated financial statements.


                      NL INDUSTRIES, INC. AND SUBSIDIARIES

                      CONSOLIDATED STATEMENTS OF OPERATIONS

                  Years ended December 31, 2003, 2004 and 2005

                      (In thousands, except per share data)



                                                             2003                2004              2005
                                                             ----                ----              ----

                                                                                      
Net sales                                                 $1,182,143         $  741,687        $  186,350
Cost of sales                                                882,114            572,541           142,594
                                                          ----------         ----------        ----------

    Gross margin                                             300,029            169,146            43,756

Selling, general and administrative expense                  146,043             94,346            24,156
Other operating income (expense):
  Currency transaction gains (losses), net                    (8,289)               741               (71)
  Disposition of property and equipment                        9,845                 (2)             (475)
  Noncompete agreement income                                    333               -                 -
  Legal settlement gains, net                                    823                552             2,969
  Other income                                                   436              6,953               462
  Corporate expense                                          (57,430)           (17,094)          (19,870)
                                                          ----------         ----------        ----------

    Income from operations                                    99,704             65,950             2,615

Equity in earnings of Kronos Worldwide, Inc.                       -              9,613            25,549
Other income (expense):
  Trade interest income                                          932                493               110
  Interest and dividend income from affiliates                 3,319              7,986             2,347
  Other interest income                                        1,351              1,303             3,293
  Securities transactions, net                                 2,402              2,113            14,603
  Interest expense                                           (34,303)           (18,305)             (336)
                                                          ----------         ----------        ----------

    Income from continuing operations before
         income taxes and minority interest                   73,405             69,153            48,181

Provision for income taxes (benefit)                          87,854           (239,704)           14,615
Minority interest                                              3,858            149,596               352
                                                          ----------         ----------        ----------


    Income (loss) from continuing operations                 (18,307)           159,261            33,214

Discontinued operations                                       (2,874)             3,552              (326)
                                                          ----------         ----------        ----------

        Net income (loss)                                 $  (21,181)        $  162,813        $   32,888
                                                          ==========         ==========        ==========



          See accompanying notes to consolidated financial statements.

                      NL INDUSTRIES, INC. AND SUBSIDIARIES

                CONSOLIDATED STATEMENTS OF OPERATIONS (CONTINUED)

                  Years ended December 31, 2003, 2004 and 2005

                      (In thousands, except per share data)



                                                             2003                2004              2005
                                                             ----                ----              ----

Basic earnings (loss) per share:
                                                                                      
  Income (loss) from continuing operations                $     (.38)        $     3.30        $      .68
  Discontinued operations                                       (.06)               .07               -
                                                          ----------         ----------        ----------

        Net income (loss)                                 $     (.44)        $     3.37        $      .68
                                                          ==========         ==========        ==========

Diluted earnings (loss) per share:
  Income (loss) from continuing operations                $     (.38)        $     3.29        $      .68
  Discontinued operations                                       (.06)               .07               -
                                                          ----------         ----------        ----------

    Net income (loss)                                     $     (.44)        $     3.36        $      .68
                                                          ==========         ==========        ==========

Weighted-average shares used in the calculation
   of net income per share:
  Basic                                                       47,721             48,333            48,541
  Dilutive impact of stock options                                74                 86                46
                                                          ----------         ----------        ----------

  Diluted                                                     47,795             48,419            48,587
                                                          ==========         ==========        ==========



          See accompanying notes to consolidated financial statements.


                      NL INDUSTRIES, INC. AND SUBSIDIARIES

                 CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

                  Years ended December 31, 2003, 2004 and 2005

                                 (In thousands)



                                                             2003                2004              2005
                                                             ----                ----              ----

                                                                                      
Net income (loss)                                         $  (21,181)        $  162,813        $   32,888
                                                          ----------         ----------        ----------

Other comprehensive income (loss), net of tax:
  Marketable securities adjustment:
    Unrealized holding gains arising
     during the period                                        18,901              3,460             7,301
    Reclassification for realized net loss
     included in net income                                   (1,474)              -                 -
                                                          ----------         ----------        ----------

                                                              17,427              3,460             7,301

Minimum pension liabilities adjustment                       (14,737)             3,639            (9,480)

Currency translation adjustment                               22,491             16,894            (5,289)
                                                          ----------         ----------        ----------

      Total other comprehensive income (loss)                 25,181             23,993            (7,468)
                                                          ----------         ----------        ----------

          Comprehensive income                            $    4,000         $  186,806        $   25,420
                                                          ==========         ==========        ==========







          See accompanying notes to consolidated financial statements.





                      NL INDUSTRIES , INC. AND SUBSIDIARIES
                 CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                  Years ended December 31, 2003, 2004 and 2005
                      (In thousands, except per share data)


                                                                                     Accumulated other
                                                                              comprehensive income (loss)
                                              Additional              -----------------------------------------------
                                    Common     paid-in     Retained   Marketable    Currency      Pension    Treasury
                                     stock     capital     earnings   securities   translation  liabilities    stock        Total
                                  --------------------------------------------------------------------------------------------------
                                                                                                 
Balance at December 31, 2002         $8,355   $ 784,306  $ 197,767   $   5,896    $ (175,114)  $  (22,109)  $ (436,180)  $ 362,921

Net income                             -           -       (21,181)       -             -            -            -        (21,181)
Other comprehensive income (loss),
  net of tax                           -           -          -         17,427        22,491      (14,737)        -         25,181
Distribution of 48.8% of Kronos
  Worldwide, Inc.                      -           -       (88,532)       -             -            -            -        (88,532)
Income tax on distribution             -        (64,538)   (48,664)       -             -            -            -       (113,202)
Cash dividends declared -
  $.80 per share                       -           -       (38,183)       -             -            -            -        (38,183)
Treasury stock - reissued              -           -          -           -             -            -           1,738       1,738
Other capital transactions
  with affiliates                      -           -        (1,207)       -             -            -            -         (1,207)
                                     ------   ---------  ---------   ---------    ----------   ----------   ----------   ---------

Balance at December 31, 2003          8,355     719,768       -         23,323      (152,623)     (36,846)    (434,442)    127,535

Net income                             -           -       162,813        -             -            -            -        162,813
Other comprehensive income,
  net of tax                           -           -          -          3,460        16,894        3,639         -         23,993
Distribution of shares of Kronos
  Worldwide, Inc.                      -           -        (8,741)       -             -            -            -         (8,741)
Income tax on distribution             -        (52,464)   (34,765)       -             -            -            -        (87,229)
Settlement of tax liability using
  shares of Kronos Woldwide, Inc.
  common stock with a net book
  value in excess of the amount
  of tax liability settled             -        174,486       -           -             -            -            -        174,486
Issuance of common stock                  6         909       -           -             -            -            -            915

Acquisition of 10,374 shares of
  CompX International Inc.             -       (102,963)   (65,615)       -             -            -            -       (168,578)
Treasury stock:
  Reissued                             -           -          -           -             -            -           8,354       8,354
  Retired                            (2,307)   (370,089)   (53,692)       -             -            -         426,088        -
Other                                  -             81       -           -             -            -            -             81
                                     ------   ---------  ---------   ---------    ----------   ----------   ----------   ---------

Balance at December 31, 2004          6,054     369,728       -         26,783      (135,729)     (33,207)        -        233,629

Net income                             -           -        32,888        -             -            -            -         32,888
Other comprehensive income
  (loss), net of tax                   -           -          -          7,301        (5,289)      (9,480)        -         (7,468)
Distribution of shares of
  Kronos Worldwide, Inc.               -           -        (2,637)       -             -            -            -         (2,637)
Income tax on distribution             -           -        (3,024)       -             -            -            -         (3,024)
Issuance of common stock                 16       2,583       -           -             -            -            -          2,599
Cash dividends declared -
  $.75 per share                       -         (9,192)   (27,227)       -             -            -            -        (36,419)
Other                                  -            114       -           -             -            -            -            114
                                     ------   ---------  ---------   ---------    ----------   ----------   ----------   ---------

Balance at December 31, 2005         $6,070   $ 363,233  $    -      $  34,084    $ (141,018)  $  (42,687)  $     -      $ 219,682
                                     ======   =========  =========   =========    ==========   ==========   ==========   =========



          See accompanying notes to consolidated financial statements.




                      NL INDUSTRIES, INC. AND SUBSIDIARIES

                      CONSOLIDATED STATEMENTS OF CASH FLOWS

                  Years ended December 31, 2003, 2004 and 2005

                                 (In thousands)



                                                             2003                2004              2005
                                                             ----                ----              ----

Cash flows from operating activities:
                                                                                      
    Net income (loss)                                     $  (21,181)        $  162,813        $   32,888
    Depreciation and amortization                             54,875             36,402            11,334
    Goodwill impairment                                         -                 6,500               864
    Noncash interest expense                                   2,197              1,222               183
    Deferred income taxes:
       Continuing operations                                  91,888           (265,062)          (10,604)
       Discontinued operations                                (2,590)            (3,691)             (187)
    Minority interest:
       Continuing operations                                   3,858            149,596               352
       Discontinued operations                                (1,414)            (3,944)             (151)
    Net losses (gains) from:
       Securities transactions                                (2,402)            (2,113)          (14,603)
       Disposition of property and equipment                  (9,845)                 2               475
    Benefit plan expense greater (less)
      than cash funding:
        Defined benefit pension plans                         (5,478)               244              (885)
        Other postretirement benefit plans                    (3,468)            (2,090)             (431)
    Equity in Kronos Worldwide, Inc.                            -                (9,613)          (25,549)
    Distributions from Kronos Worldwide, Inc.                   -                10,731            17,593
    Distributions from TiO2 manufacturing
     joint venture, net                                          875              8,300              -
    Other, net                                                 1,053              2,254               623
    Change in assets and liabilities:
    Accounts and other receivable                              2,541            (44,994)              246
    Inventories                                              (20,938)            50,062              (936)
    Prepaid expenses                                           3,186              1,769               (41)
    Accounts payable and accrued liabilities                  (9,732)           (31,110)           (4,038)
    Income taxes                                             (25,726)            34,076             6,324
    Accounts with affiliates                                  34,138              7,958            (4,201)
    Accrued environmental costs                               24,137             (9,665)          (12,870)
    Other noncurrent assets and liabilities, net              (1,091)            (6,916)           (1,684)
                                                          ----------         ----------        ----------

        Net cash provided (used) by
         operating activities                                114,883             92,731            (5,298)
                                                          ----------         ----------        ----------







                      NL INDUSTRIES, INC. AND SUBSIDIARIES

                CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)

                  Years ended December 31, 2003, 2004 and 2005

                                 (In thousands)




                                                             2003                2004              2005
                                                             ----                ----              ----


Cash flows from investing activities:
                                                                                       
  Capital expenditures                                    $  (44,262)        $  (16,209)        $  (10,676)
  CompX business acquisition, net of cash acquired              -                  -                (7,342)
  Collection of loans to affiliates                            4,000             35,423             10,000
   Change in restricted cash equivalents  and restricted
      marketable debt securities, net                           (654)            10,367             (1,945)
  Proceeds from disposal of:
    Business unit                                               -                  -                18,094
    Kronos common stock                                         -                 2,745             19,176
    Property and equipment                                    12,801              2,222                 27
  Cash of disposed business unit                                -                  -                (4,006)
  Purchase of CompX common stock                                -                  -                (3,645)
  Investment in marketable securities                           -                  -                (7,503)
  Proceeds from sale of marketable securities                   -                  -                 6,301
  Other, net                                                     671               -                  -
                                                          ----------         ----------         ----------

      Net cash provided (used) by investing activities       (27,444)            34,548             18,481
                                                          ----------         ----------         ----------

Cash flows from financing activities:
  Indebtedness:
    Borrowings                                                17,106            102,225                 18
    Principal payments                                       (52,012)          (128,091)               (93)
    Deferred financing costs paid                                  -                (28)              (114)
  Cash dividends paid                                        (38,183)              -               (36,419)
  Treasury stock - reissued                                    1,738               -                  -
  Proceeds from issuance of stock:
    NL common stock                                                -              9,201              2,507
    CompX common stock                                             -                617                639
  Capital transactions with affiliates                        (1,207)              -                  -
  Distributions to minority interests                           (606)           (12,635)            (2,384)
  Other, net                                                    (426)              -                  -
                                                          ----------         ----------         ----------

      Net cash used by financing activities                  (73,590)           (28,711)           (35,846)
                                                          ----------         ----------         ----------

Net increase (decrease)                                   $   13,849         $   98,568         $  (22,663)
                                                          ==========         ==========         ==========








                      NL INDUSTRIES, INC. AND SUBSIDIARIES

                CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)

                  Years ended December 31, 2003, 2004 and 2005

                                 (In thousands)


                                                             2003                2004              2005
                                                             ----                ----              ----

Cash and cash equivalents-net change from:
                                                                                       
  Operating, investing and financing activities           $   13,849         $   98,568         $  (22,663)
  Currency translation                                         5,178               (474)               390
  Kronos cash balance at June 30, 2004                          -               (88,434)              -
                                                          ----------         ----------         ----------

                                                              19,027              9,660            (22,273)

   Balance at beginning of year                               70,498             89,525             99,185
                                                          ----------         ----------         ----------

   Balance at end of year                                 $   89,525         $   99,185         $   76,912
                                                          ==========         ==========         ==========

Supplemental disclosures:
   Cash paid (received) for:
    Interest                                              $   30,000         $   17,119         $      259
    Income taxes                                              (1,848)           (17,000)            32,519

   Non cash investing activities -
    Note received upon disposal of CompX
     business unit                                        $     -            $     -            $    4,179

  Net assets of Kronos Worldwide, Inc.
      deconsolidated as of July 1, 2004:
        Cash and cash equivalents                                            $   88,434
        Accounts and other receivables                                          200,845
        Inventories                                                             209,816
        Other current assets                                                      9,344
        Investment in TiO2 manufacturing joint venture                          120,711
        Net property and equipment                                              413,171
        Other assets                                                            209,105
        Current liabilities                                                    (156,701)
        Long-term debt                                                         (346,682)
        Note payable to affiliates                                             (200,000)
        Accrued pension costs                                                   (66,227)
        Accrued postretirement benefits costs                                   (10,677)
        Deferred income taxes                                                   (50,730)
        Other liabilities                                                       (13,408)
        Minority interest                                                      (201,842)
                                                                             ----------

      Net assets                                                             $  205,159
                                                                             ==========



          See accompanying notes to consolidated financial statements.



                      NL INDUSTRIES, INC. AND SUBSIDIARIES

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


Note 1 - Organization and basis of presentation:

     NL Industries,  Inc. (NYSE: NL) is a subsidiary of Valhi, Inc. (NYSE: VHI).
At December  31,  2005,  (i) Valhi held  approximately  83% of NL's  outstanding
common  stock  and  (ii)  Contran   Corporation   and  its   subsidiaries   held
approximately  92% of Valhi's  outstanding  common stock.  Substantially  all of
Contran's outstanding voting stock is held by trusts established for the benefit
of certain children and grandchildren of Harold C. Simmons, of which Mr. Simmons
is sole trustee,  or is held by Mr. Simmons or persons or other entities related
to Mr. Simmons.  Consequently, Mr. Simmons may be deemed to control each of such
companies.

     On September 24, 2004, the Company  completed the acquisition of 10,374,000
shares of CompX  International  Inc.  (NYSE:  CIX)  common  stock,  representing
approximately  68% of the  outstanding  shares of CompX common stock.  The CompX
common stock was purchased from Valhi and Valcor,  a wholly-owned  subsidiary of
Valhi, at a purchase price of $16.25 per share, or an aggregate of approximately
$168.6 million. The purchase price was paid by NL's transfer to Valhi and Valcor
of $168.6 million of NL's $200 million  long-term note  receivable  from Kronos.
The acquisition  was approved by a special  committee of NL's board of directors
comprised  of directors  who were not  affiliated  with Valhi,  and such special
committee  retained  their own legal and  financial  advisors  who  rendered  an
opinion  to the  special  committee  that the  purchase  price was fair,  from a
financial  point of view,  to NL.  NL's  acquisition  was  accounted  for  under
accounting  principles  generally  accepted  in the  United  States  of  America
("GAAP") as a transfer of net assets among  entities under common  control,  and
accordingly   resulted  in  a  change  in  reporting  entity.  The  Company  has
retroactively  restated its  consolidated  financial  statements  to reflect the
consolidation  of CompX for all periods  presented.  The excess of the aggregate
$168.6 million  principal amount of NL's note receivable  Kronos  transferred to
Valhi and Valcor over the net carrying value of Valhi's and Valcor's  investment
in CompX was  accounted  for as a reduction of NL's  consolidated  stockholders'
equity.  Subsequent to the September 24, 2004 acquisition of 68% of CompX common
stock,  NL  acquired  an  additional  2% of CompX  common  stock in open  market
transactions through December 31, 2005.

     Prior to July 2004, Kronos Worldwide, Inc. (NYSE: KRO) was a majority-owned
subsidiary of the Company.  Following  the  Company's  July 2004 dividend in the
form of  shares of Kronos  common  stock  distributed  to NL  shareholders,  the
Company's  ownership  of Kronos  was  reduced  to less  than 50%.  Consequently,
effective  July 1, 2004 the  Company  ceased to  consolidate  Kronos'  financial
position,  results  of  operations  and cash  flows  and the  Company  commenced
accounting  for its  interest  in  Kronos  by the  equity  method.  The  Company
continues to report Kronos as a consolidated  subsidiary  through June 30, 2004,
including the  consolidation of Kronos' results of operations and cash flows for
the  first  two  quarters  of  2004.  Certain  disclosures  contained  in  these
consolidated  financial  statements  for 2004  related  to  Kronos'  results  of
operations  and cash flows  include  amounts  related to the first six months of
2004.

     Management's   estimates.   The  preparation  of  financial  statements  in
conformity with GAAP requires  management to make estimates and assumptions that
affect  the  reported  amounts  of assets  and  liabilities  and  disclosure  of
contingent assets and liabilities at the date of the financial  statements,  and
the reported amount of revenues and expenses during the reporting period. Actual
results  may  differ  significantly  from  previously-estimated   amounts  under
different assumptions or conditions.

     Principles of consolidation.  The consolidated financial statements include
the accounts of NL and its wholly-owned  and  majority-owned  subsidiaries.  All
material intercompany accounts and balances have been eliminated.  The effect of
decreases in the Company's  ownership interest of its consolidated  subsidiaries
through the Company's sale of its affiliate's  common stock to third parties are
reflected in net income,  with a gain or loss recognized equal to the difference
between the proceeds  from such sale and the carrying  value of the shares sold.
The  effect  of other  decreases  in the  Company's  ownership  interest  of its
consolidated  subsidiaries,  which  usually  result from the exercise of options
granted  by such  subsidiaries  to  purchase  their  shares of  common  stock to
employees, is generally not material.

     Translation of foreign  currencies.  Assets and liabilities of subsidiaries
and  affiliates  whose  functional  currency  is other than the U.S.  dollar are
translated  at  year-end  rates  of  exchange  and  revenues  and  expenses  are
translated  at average  exchange  rates  prevailing  during the year.  Resulting
translation  adjustments  are  accumulated  in  stockholders'  equity as part of
accumulated other comprehensive income, net of related deferred income taxes and
minority  interest.  Currency  transaction  gains and losses are  recognized  in
income currently.

     Derivatives  and hedging  activities.  Derivatives are recognized as either
assets or liabilities and measured at fair value in accordance with Statement of
Financial  Accounting  Standards  ("SFAS") No. 133,  "Accounting  for Derivative
Instruments and Hedging  Activities," as amended.  The accounting for changes in
fair value of derivatives  depends upon the intended use of the derivative,  and
such changes are recognized either in net income or other comprehensive  income.
As permitted  by the  transition  requirements  of SFAS No. 133, the Company has
exempted from the scope of SFAS No. 133 all host contracts  containing  embedded
derivatives that were issued or acquired prior to January 1, 1999.

     Cash and cash equivalents.  Cash equivalents include bank time deposits and
U.S. Treasury  securities  purchased under short-term  agreements to resell with
original maturities of three months or less.

     Restricted  cash  equivalents and restricted  marketable  debt  securities.
Restricted cash equivalents and restricted marketable debt securities, primarily
invested  in U.S.  government  securities  and money  market  funds that  invest
primarily in U.S. government securities,  include amounts restricted pursuant to
outstanding  letters of credit  ($5  million at each of  December  31,  2004 and
2005),  and at December  31,  2004 also  included  $19  million  held by special
purpose trusts (2005 - nil) formed by NL, the assets of which could only be used
to  pay  for  certain  of  NL's  future  environmental   remediation  and  other
environmental expenditures.  Such restricted amounts are generally classified as
either a current or  noncurrent  asset  depending on the  classification  of the
liability to which the restricted amount relates.  Additionally,  the restricted
marketable  debt  securities  are  generally  classified  as either a current or
noncurrent  asset  depending  upon the maturity date of each such debt security.
Use of such  restricted  balances  does not  affect the  Company's  Consolidated
Statements of Cash Flows.

     Marketable  securities and  securities  transactions.  Marketable  debt and
equity  securities  are carried at fair value based upon quoted  market  prices.
Unrealized gains and losses on available-for-sale  securities are accumulated in
stockholders'  equity as part of accumulated other comprehensive  income, net of
related deferred income taxes and minority  interest.  Realized gains and losses
are based upon the specific identification of the securities sold.

     Accounts  receivable.  The  Company  provides  an  allowance  for  doubtful
accounts  for  known  and  estimated  potential  losses  arising  from  sales to
customers based on a periodic review of these accounts.

     Investment in Kronos  Worldwide,  Inc.  Following  the Company's  July 2004
dividend  in the  form of  shares  of  Kronos  common  stock  distributed  to NL
shareholders,  the  Company's  ownership of Kronos was reduced to less than 50%.
Consequently,  effective July 1, 2004 the Company ceased to consolidate  Kronos'
financial  position,  results  of  operations  and cash  flows  and the  Company
commenced  accounting  for its  interest  in Kronos by the  equity  method.  The
Company continues to report Kronos as a consolidated subsidiary through June 30,
2004,  including the  consolidation  of Kronos'  results of operations  and cash
flows for the first two quarters of 2004.

     Investment  in TiO2  manufacturing  joint  venture.  Through June 30, 2004,
Kronos'  investment in its 50%-owned  manufacturing  joint venture was accounted
for by the equity method.

     Goodwill  and  other  intangible  assets;  amortization  expense.  Goodwill
represents the excess of cost over fair value of individual net assets  acquired
in business combinations  accounted for by the purchase method.  Goodwill is not
subject to periodic  amortization.  Other intangible assets are amortized by the
straight-line  method over their estimated lives.  Other  intangible  assets are
stated net of accumulated amortization, and goodwill and other intangible assets
are assessed for impairment in accordance with SFAS No. 142, "Goodwill and Other
Intangible Assets." See Notes 8, 9 and 24.

     Property and equipment;  depreciation  expense.  Property and equipment are
stated at cost.  Depreciation of property and equipment for financial  reporting
purposes is computed  principally by the straight-line method over the estimated
useful  lives of ten to 40  years  for  buildings  and  three  to 20  years  for
equipment. Accelerated depreciation methods are used for income tax purposes, as
permitted. Upon sale or retirement of an asset, the related cost and accumulated
depreciation are removed from the accounts and any gain or loss is recognized in
income currently.  Expenditures for maintenance,  repairs and minor renewals are
expensed; expenditures for major improvements are capitalized.

     Interest costs related to major long-term capital projects and renewals are
capitalized as a component of  construction  costs.  Interest costs  capitalized
related to the Company's  consolidated business segments were not significant in
2003, 2004 or 2005.

     When  events or  changes  in  circumstances  indicate  that  assets  may be
impaired,  an evaluation is performed to determine if an impairment exists. Such
events or changes in circumstances  include, among other things, (i) significant
current  and prior  periods or current  and  projected  periods  with  operating
losses,  (ii) a significant  decrease in the market value of an asset or (iii) a
significant  change  in the  extent  or  manner  in which an asset is used.  All
relevant  factors  are  considered.  The test for  impairment  is  performed  by
comparing the estimated  future  undiscounted  cash flows (exclusive of interest
expense)  associated  with  the  asset  to the  asset's  net  carrying  value to
determine  if a  write-down  to market  value or  discounted  cash flow value is
required.   The  Company  assesses  impairment  of  property  and  equipment  in
accordance  with SFAS No. 144,  "Accounting  for the  Impairment  or Disposal of
Long-Lived Assets."

     Long-term  debt.  Amortization  of deferred  financing  costs,  included in
interest  expense,  is  computed  by the  interest  method  over the term of the
applicable issue.

     Employee benefit plans.  Accounting and funding policies for retirement and
post  retirement  benefits  other than pensions  ("OPEB") plans are described in
Note 16.

     Income taxes.  The Company and its qualifying  subsidiaries are included in
the  consolidated  U.S. federal tax return of Contran (the "Contran Tax Group").
As a member of the  Contran  Tax Group,  the Company is a party to a tax sharing
agreement (the "Contran Tax Agreement"). The Contran Tax Agreement provides that
the Company  compute its provision for U.S.  income taxes on a  separate-company
basis using the tax  elections  made by Contran.  Kronos is also a member of the
Contran Tax Group.  CompX,  previously a separate U.S.  federal income taxpayer,
became a member of the  Contran  Tax Group for  federal  income tax  purposes in
October 2004 with the formation of CompX Group,  Inc. See Note 2. As a member of
the Contran  Tax Group,  the  Company is jointly  and  severally  liable for the
federal income tax liability of Contran and the other companies  included in the
Contran  Tax Group for all  periods  in which the  Company  is  included  in the
Contran Tax Group.  See Note 19. Pursuant to the Contran Tax Agreement and using
the tax elections made by Contran,  the Company  generally  makes payments to or
receives  payments  from Valhi in amounts it would have paid to or received from
the U.S.  Internal  Revenue  Service had it not been a member of the Contran Tax
Group.  Refunds  are  limited to amounts  previously  paid under the Contran Tax
Agreement  unless the  Company was  entitled to a refund from the U.S.  Internal
Revenue  Service on a separate  company  basis.  Most members of the Contran Tax
Group also file consolidated unitary state income tax returns in qualifying U.S.
jurisdictions.  See Note 15. The  Company  made net cash  payments  to Valhi for
income taxes of $3.9  million in 2003,  $1.8 million in 2004 and $1.7 million in
2005. See also Note 2 regarding the Company's payment of certain income taxes to
Valhi using shares of Kronos common stock.

     Deferred  income tax assets and liabilities are recognized for the expected
future tax  consequences  of  temporary  differences  between the income tax and
financial  reporting  carrying  amounts  of assets  and  liabilities,  including
investments  in the  Company's  subsidiaries  and  affiliates  who  would not be
members of a NL  consolidated  U.S.  federal  income tax group on an NL separate
company basis and undistributed  earnings of foreign  subsidiaries which are not
permanently  reinvested.  In this  regard,  the  Company  commenced  recognizing
deferred  income  taxes with  respect to the excess of the  financial  reporting
carrying amount over the income tax basis of the Company's  investment in Kronos
effective in December 2003 following the Company's distribution of approximately
48.8% of Kronos' common stock on a pro-rata basis to NL  shareholders.  Earnings
of  CompX's  foreign  subsidiaries  subject  to  permanent   reinvestment  plans
aggregated  $31.3  million at December 31, 2004 and $5.5 million at December 31,
2005.  Determination  of the  amount of the  unrecognized  deferred  income  tax
liability  related to such earnings is not practicable  due to the  complexities
associated  with  the  U.S.   taxation  on  earnings  of  foreign   subsidiaries
repatriated  to the U.S.  The Company  periodically  evaluates  its deferred tax
assets in the various taxing  jurisdictions in which it operates and adjusts any
related valuation allowance based on the estimate of the amount of such deferred
tax assets that the Company  believes  does not meet the  "more-likely-than-not"
recognition criteria.

     Environmental remediation costs. The Company records liabilities related to
environmental  remediation  obligations when estimated  future  expenditures are
probable  and  reasonably  estimable.  Such  accruals  are  adjusted  as further
information  becomes  available  or  circumstances   change.   Estimated  future
expenditures are generally not discounted to their present value.  Recoveries of
remediation  costs from other  parties,  if any, are  recognized  as assets when
their receipt is deemed probable.  At December 31, 2004 and 2005, no receivables
for recoveries have been recognized. See Note 19.

     Net sales. Sales are recorded when products are shipped and title and other
risks and rewards of ownership have passed to the customer, or when services are
performed.  Shipping terms of products shipped are generally FOB shipping point,
although in some instances  shipping terms are FOB destination  point (for which
sales are not recognized until the product is received by the customer). Amounts
charged to customers for shipping and handling are included in net sales.  Sales
are stated net of price,  early  payment and  distributor  discounts  and volume
rebates.

     Inventories and cost of sales.  Inventories are stated at the lower of cost
or  market,  net of  allowance  for  slow-moving  inventories  ($1.2  million at
December  31, 2004 and 2005).  Inventory  costs are based on average cost or the
first-in,  first-out method. Cost of sales includes costs for materials, packing
and  finishing,   shipping  and  handling,   utilities,   salary  and  benefits,
maintenance and depreciation.

     Selling, general and administrative expenses;  shipping and handling costs.
Selling, general and administrative expenses include costs related to marketing,
sales,  distribution,  shipping and handling,  research and development,  legal,
environmental  remediation  and  administrative  functions  such as  accounting,
treasury and finance,  and includes costs for salaries and benefits,  travel and
entertainment,   promotional  materials  and  professional  fees.  Shipping  and
handling  costs of the  Company's  chemicals  segment  are  included in selling,
general and administrative  expense and were $63 million in 2003, $34 million in
2004 and nil in 2005.  Shipping and handling  costs of the  Company's  component
products segment included in selling, general and administration expense are not
material.  Advertising  costs related to continuing  operations  are expensed as
incurred  and  were $1  million  in each  of  2003,  2004  and  2005.  Research,
development  and certain  sales  technical  support  costs related to continuing
operations  are expensed as incurred  and  approximated  $7 million in 2003,  $4
million in 2004 and $200,000 in 2005.

     Corporate  expenses.  Corporate expenses include  environmental,  legal and
other costs attributable to formerly-owned business units.

     Earnings per share.  Basic earnings per share of common stock is based upon
the weighted  average number of common shares actually  outstanding  during each
period.  Diluted  earnings  per share of common  stock  includes  the  impact of
outstanding  dilutive stock options.  The weighted average number of outstanding
stock  options  excluded  from the  calculation  of diluted  earnings  per share
because their impact would have been  antidilutive  aggregated nil in 2003, 2004
and 2005.  There were no  adjustments  to net income in the  computation  of the
diluted earnings per share amounts.

     Stock  options.   The  Company  has  elected  the  disclosure   alternative
prescribed  by SFAS No.  123,  "Accounting  for  Stock-Based  Compensation,"  as
amended by SFAS No. 148,  "Accounting for Stock-Based  Compensation - Transition
and  Disclosure,"  and to  account  for its  stock-based  employee  compensation
related to stock options in accordance with Accounting  Principles Board Opinion
("APBO") No. 25,  "Accounting  for Stock Issued to  Employees,"  and its various
interpretations. Under APBO No. 25, no compensation cost is generally recognized
for fixed stock options in which the exercise  price is not less than the market
price on the  grant  date.  Prior to 2003,  and  following  the  Company's  cash
settlement  of options to purchase NL common stock held by certain  individuals,
the  Company  commenced  accounting  for its stock  options  using the  variable
accounting method because the Company could not overcome the presumption that it
would not similarly cash settle its remaining stock options.  Under the variable
accounting  method,  the  intrinsic  value  of  all  unexercised  stock  options
(including  those with an exercise  price at least equal to the market  price on
the date of grant) are accrued as an expense  over their  vesting  period,  with
subsequent  increases  (decreases) in NL's market price  resulting in additional
compensation expense (income).  Aggregate  compensation cost related to NL stock
options  recognized  by the Company was $1.9 million in 2003 and $1.7 million in
2004, and compensation income was $100,000 in 2005. The total income tax benefit
related to such  compensation  cost recognized by the Company was  approximately
$700,000 in 2003 and $600,000 in 2004 and the total income tax provision related
to the compensation  income was less than $100,000 in 2005. No compensation cost
was capitalized as part of assets  (inventory or fixed assets) during 2003, 2004
and 2005.

     The following  table presents what the Company's  consolidated  net income,
and related  per share  amounts,  would have been in 2003,  2004 and 2005 if the
Company and its  subsidiaries  and  affiliates  had each  elected to account for
their respective  stock-based employee compensation related to all stock options
in accordance with the fair value-based  recognition provisions of SFAS No. 123,
for all awards granted subsequent to January 1, 1995.


                                                           Years ended December 31,
                                                  -----------------------------------------
                                                   2003              2004            2005
                                                   ----              ----            ----
                                                   (In millions, except per share amounts)

                                                                           
Net income (loss) as reported                    $ (21.2)         $  162.8          $  32.9

Adjustments, net of applicable income
 tax effects and minority interest:
    Stock-based employee  compensation
       expense determined under APBO No. 25          1.1               1.1               -
    Stock-based employee  compensation
       expense determined under SFAS No. 123        (1.3)              (.2)             (.2)
                                                 -------           -------          -------

Pro forma net income (loss)                      $ (21.4)          $ 163.7          $  32.7
                                                 =======           =======          =======

Basic earnings (loss) per share:
  As reported                                    $  (.44)          $  3.37          $   .68
  Pro forma                                      $  (.45)          $  3.39          $   .67

Diluted earnings (loss) per share:
  As reported                                    $  (.44)          $  3.36          $   .68
  Pro forma                                      $  (.45)          $  3.38          $   .67


     The  pro  forma  information  required  by  SFAS  No.  123 is  based  on an
estimation of the fair value of options issued subsequent to January 1, 1995. No
options were  granted in 2003,  2004 or 2005.  The fair value of employee  stock
options were calculated  using the  Black-Scholes  stock option valuation model.
For purposes of pro forma  disclosures,  the estimated fair value of the options
is amortized to expense over the options' vesting period.

Note 2 - Business combinations and related transactions:

     CompX  International,  Inc. As discussed in Note 1, on September  24, 2004,
the Company  purchased  10,374,000  shares of CompX common  stock,  representing
approximately  68% of the outstanding  shares of CompX common stock,  from Valhi
and a  wholly-owned  subsidiary of Valhi.  Because  Valhi,  NL and CompX are all
entities under the common control of Contran,  the Company's  acquisition of the
shares of CompX  common stock  results in a change in  reporting  entity and the
Company has  retroactively  restated its  consolidated  financial  statements to
reflect the consolidation of CompX for all periods presented.

     Effective  October 1, 2004, the Company  contributed such 10,374,000 shares
of CompX  common  stock  to  newly-formed  CompX  Group  in  return  for a 82.4%
ownership  interest in CompX Group.  Concurrently,  Titanium Metals  Corporation
("TIMET"), a less-than-majority  owned affiliate of Valhi, contributed shares of
CompX common stock representing  approximately 15% of CompX's outstanding common
shares in return for the remaining 17.6%  ownership  interest in CompX Group. At
that time,  CompX  Group  became the owner of the 83% of CompX that NL and TIMET
had previously owned in the aggregate.  These CompX shares are the sole asset of
CompX Group.  CompX Group  recorded the shares of CompX received from NL at NL's
carryover basis. During 2005, NL purchased approximately 234,000 shares of CompX
common  stock in open market  transactions  representing  approximately  1.5% of
CompX's  outstanding common stock for an aggregate amount of $3.6 million during
2005.

     In August 2005,  CompX completed the  acquisition of a components  products
company for aggregate cash consideration of $7.3 million,  net of cash acquired.
The purchase  price has been  allocated  among the tangible and  intangible  net
assets (including goodwill) acquired based upon an estimate of the fair value of
such net assets. The pro forma effect on the Company's results of operations for
2005, assuming such acquisition had been completed as of January 1, 2005, is not
material.

     Kronos  Worldwide,  Inc. Prior to December 2003,  Kronos was a wholly-owned
subsidiary of the Company.  In December 2003, NL completed the  distribution  of
approximately  48.8%  of  Kronos'  common  stock  on  a  pro-rata  basis  to  NL
shareholders  (including  Valhi  and  Tremont  LLC) in the  form  of a  pro-rata
dividend. Shareholders of NL received one share of Kronos common stock for every
two shares of NL held.  During  2004 and the first  quarter of 2005,  NL paid an
aggregate of five  quarterly  dividends  in the form of shares of Kronos  common
stock in which an aggregate of approximately  1.5 million shares of Kronos (3.0%
of Kronos'  outstanding  shares) were distributed to NL shareholders in the form
of pro-rata  dividends.  In accordance  with GAAP,  the carrying  amount of such
shares of Kronos common stock  distributed  were accounted for as a reduction of
the Company's  retained  earnings and  aggregated  $88.5  million in 2003,  $8.7
million in 2004 and $2.6 million in 2005.

     NL's December 2003, 2004 and 2005  distributions  of shares of common stock
of Kronos are  taxable to NL, and NL is required  to  recognize  a taxable  gain
equal to the  difference  between the fair market  value of the shares of Kronos
common stock  distributed on the various dates of distribution and NL's adjusted
tax basis in such stock at such dates of distribution.  In accordance with GAAP,
the amount of such current income tax  represented by the excess of the carrying
value of such stock for financial  reporting purposes and the adjusted tax basis
of such stock is included in the  determination  of net income in the period the
shares were  distributed,  and the amount of such current income tax represented
by the excess of the fair market value of such stock and the  carrying  value of
such  stock  for  financial  reporting  purposes  is  accounted  for as a direct
reduction to the Company's stockholders' equity (retained earnings).  The amount
of  such  current  income  tax  included  in the  determination  of  net  income
aggregated  $30.3  million in 2003,  $21.2 million in 2004 and $913,000 in 2005,
while the amount of such current income tax accounted for as a direct  reduction
to equity  aggregated  $113.2  million in 2003,  $87.2  million in 2004 and $3.0
million in 2005. In accordance  with GAAP, the amount of the deferred income tax
recognized by the Company with respect to Kronos (see Note 1) are adjusted as of
the date of each distribution.

     With  respect to such shares of Kronos  distributed  to Valhi and  Tremont,
effective  December 1, 2003, Valhi and NL amended the terms of their tax sharing
agreement to not require NL to pay up to Valhi the tax liability  generated from
the  distribution  of such  Kronos  shares to Valhi and  Tremont,  although  for
financial  reporting  purposes the Company was  required to  recognize  such tax
liability.  On November 30, 2004, Valhi and NL agreed to further amend the terms
of their tax sharing  agreement  to provide that NL would now be required to pay
up to Valhi  the tax  liability  generated  from the  distribution  of shares of
Kronos  common  stock to Valhi and  Tremont,  including  the tax related to such
shares  distributed to Valhi and Tremont in December 2003 and the tax related to
the shares  distributed  to Valhi during all of 2004. In determining to so amend
the terms of the tax sharing  agreement,  NL and Valhi  considered,  among other
things,  the changed  expectation for the generation of taxable income at the NL
level resulting from the inclusion of CompX in NL's consolidated  taxable income
effective  in the fourth  quarter of 2004,  as discussed in Note 1. Valhi and NL
further  agreed that in lieu of a cash income tax  payment,  such tax  liability
could be paid by NL to Valhi in the form of shares of Kronos  common  stock held
by NL. Such tax liability  related to the shares of Kronos  distributed to Valhi
and Tremont in December 2003 and 2004,  including  the tax  liability  resulting
from  the use of  Kronos  common  stock to  settle  such  liability,  aggregated
approximately  $227  million.  Accordingly,  in the  fourth  quarter  of 2004 NL
transferred  approximately 5.5 million shares of Kronos common stock to Valhi in
satisfaction of such tax liability and the tax liability  generated from the use
of such Kronos shares to settle such tax  liability.  In agreeing to settle such
tax liability  with such 5.5 million  shares of Kronos common stock,  the Kronos
shares were valued at an  agreed-upon  price of $41 per share.  Kronos'  average
closing  market price during the months of November and December 2004 was $41.53
and $41.77, respectively.  NL also considered the fact that the shares of Kronos
held by non-affiliates are very thinly traded, and consequently an average price
over a period  of days  mitigates  the  effect  of the  thinly-traded  nature of
Kronos'  common stock.  In accordance  with GAAP, the excess of the $227 million
tax  liability  settled by transfer of the 5.5 million  shares of Kronos and the
aggregate $52.5 million  carrying  amount of such shares  transferred (or $174.5
million) was recorded as a direct increase in the Company's stockholders' equity
(additional paid-in capital). Such tax liability related to the shares of Kronos
distributed to Valhi in the first quarter of 2005 aggregated  $3.0 million,  and
such tax liability was paid by NL to Valhi in cash.  This aggregate $230 million
tax liability  has not been paid by Valhi to Contran,  nor has Contran paid such
tax liability to the applicable tax authority,  because the related taxable gain
is currently deferred at the Valhi and Contran levels due to Valhi,  Tremont and
NL all being  members of the Valhi tax group on a separate  company basis and of
the Contran Tax Group.  Such income tax liability  would become payable by Valhi
to Contran,  and by Contran to the applicable tax authority,  when the shares of
Kronos  transferred  or  distributed  by NL to  Valhi  and  Tremont  are sold or
otherwise  transferred  outside the Contran Tax Group or in the event of certain
restructuring transactions involving NL and Valhi.

     During 2005, NL sold approximately 470,000 shares of Kronos common stock in
market transactions for an aggregate of $19.2 million.  The Company recognized a
$14.7 million pre-tax securities  transaction gain related to such sales. During
2004,  NL sold  shares of Kronos  common  stock in  market  transactions  for an
aggregate of $2.7  million,  and the Company  recognized a $2.2 million  pre-tax
gain related to the  reduction of its  ownership  interest in Kronos  related to
such sales. See Note 7.

     As a result of all of the foregoing  transactions,  the Company's ownership
of Kronos was reduced to approximately  36% as of December 31, 2005. See Note 7.
At December  31, 2005,  Valhi and a  wholly-owned  subsidiary  of Valhi owned an
additional 57% of Kronos' outstanding common stock.

Note 3 - Business segment information


                                                       % owned at
  Business segment             Entity               December 31, 2005
- --------------------    ------------------------   -------------------

                                                         
  Component products    CompX International Inc.            70%
  Chemicals             Kronos Worldwide, Inc.              36%


     The Company's  ownership of CompX is held principally by CompX Group,  Inc.
The Company owns 82.4% of CompX  Group,  and TIMET owns the  remaining  17.6% of
CompX Group.  CompX Group's sole asset  consists of shares of CompX common stock
representing  approximately 83% of the total number of CompX shares outstanding,
and the  percentage  ownership  of CompX shown  above  includes  NL's  ownership
interest in CompX Group multiplied by CompX Group's ownership interest in CompX.
See Note 2. NL also owns an additional 2% of CompX directly.

     As a result of the  restatement  of the  Company's  consolidated  financial
statements to reflect the  consolidation  of CompX's results of operations,  the
Company has, for certain periods presented,  more than one operating segment (as
that  term  is  defined  in SFAS  No.  131,  Disclosures  about  Segments  of an
Enterprise and Related Information.)  Accordingly,  the following information is
presented to comply with the disclosure  requirements of SFAS No. 131, including
disclosures  with respect to each year in the  three-year  period ended December
31, 2005.

     The Company is organized based on its operating subsidiaries. The Company's
operating  segments are defined as  components  of our  consolidated  operations
about which  separate  financial  information  is  available  that is  regularly
evaluated by the chief  operating  decision maker in determining how to allocate
resources and in assessing  performance.  The Company's chief operating decision
maker is Mr. Harold C. Simmons.  Each operating  segment is separately  managed,
and each  operating  segment  represents  a  strategic  business  unit  offering
different products.

     The Company's  reportable operating segments are comprised of the component
products business conducted by CompX and, for all periods through June 30, 2004,
the chemicals  business  conducted by Kronos.  As discussed in Note 1, effective
July 1, 2004, the Company ceased to consolidate Kronos and commenced  accounting
for its interest in Kronos by the equity method.

     CompX produces and sells component products (precision ball-bearing slides,
security products and ergonomic  computer support systems) for office furniture,
computer  related  applications and a variety of other  applications.  CompX has
production facilities in North America and Asia.

     Kronos  manufactures and sells titanium dioxide pigments ("TiO2").  TiO2 is
used to impart whiteness,  brightness and opacity to a wide variety of products,
including paints,  plastics,  paper, fibers and ceramics.  Kronos has production
facilities  located in North  America  and  Europe.  Kronos also owns a one-half
interest in a TiO2 production facility located in Louisiana. See Note 7.

     CompX (NYSE:CIX) and Kronos  (NYSE:KRO) each file periodic reports with the
SEC pursuant to the Securities Exchange Act of 1934, as amended.

     The  Company  evaluates  segment  performance  based on  segment  operating
income.  Segment profit is defined as income from continuing  operations  before
income taxes, minority interest,  extraordinary items, interest expense, certain
nonrecurring items and certain general corporate items. Corporate items excluded
from segment profit include corporate expense,  interest and dividend income not
attributable  to the component  products  business and the  chemicals  business,
litigation settlement gains,  securities  transaction gains from the disposal of
long-lived  assets  outside the  ordinary  course of  business.  The  accounting
policies of the respective  business segments are the same as those described in
Note 1.

     Interest  income  included  in the  calculation  of  segment  profit is not
material.  Amortization  of  deferred  financing  costs is  included in interest
expense.  There  are  no  intersegment  sales  or any  significant  intersegment
transactions.

     Segment assets are comprised of all assets  attributable  to each reporting
operating  segment.  The Company's  investment in the TiO2  manufacturing  joint
venture is included in the chemicals  business segment assets.  Corporate assets
are not  attributable to any operating  segment and consist  principally of cash
and cash equivalents,  restricted cash  equivalents,  marketable debt and equity
securities  and loans to  affiliates.  Substantially  all  corporate  assets are
attributable to NL.

     For  geographic  information,  net  sales  are  attributed  to the place of
manufacture  (point  of  origin)  and the  location  of the  customer  (point of
destination);  property and equipment are attributed to their physical location.
At  December  31,  2005,  the net assets of  non-U.S.  subsidiaries  included in
consolidated net assets approximated $45 million (2004 - $80 million).




                                                        Years ended December 31,
                                                  ------------------------------------
                                                  2003             2004           2005
                                                  ----             ----           ----
                                                              (In millions)
 Net sales:
                                                                         
   Chemicals                                   $ 1,008.2        $  559.1       $     -
   Component products                              173.9           182.6          186.4
                                               ---------        --------       --------

     Total net sales                           $ 1,182.1        $  741.7       $  186.4
                                               =========        ========       ========

 Segment profit:
   Chemicals                                   $   137.4        $   66.4       $     -
   Component products                                9.0            16.3           19.3
                                               ---------        --------       --------

     Total segment profit                          146.4            82.7           19.3

 General corporate items:
   Interest and dividend income
    from affiliates                                  3.3             8.0            2.3
   Other interest income                             1.4             1.3            3.3
   Securities transactions, net                      2.4             2.1           14.6
   Insurance recoveries                               .8              .6            3.0
   Gain on disposal of fixed assets                 10.4              -              -
   Noncompete agreement income                        .3              -              -
   Other income                                       .1              .3             .4
   General corporate expenses, net                 (57.4)          (17.1)         (19.9)
   Interest expense                                (34.3)          (18.3)           (.3)
                                               ---------        --------       --------

                                                    73.4            59.6           22.7
     Equity in earnings of Kronos
      Worldwide, Inc.                                 -              9.6           25.5
                                               ---------        --------       --------

     Income from continuing operations
         before income taxes and
          minority interest                    $    73.4        $   69.2       $   48.2
                                               =========        ========       ========







                                                        Years ended December 31,
                                                  ------------------------------------
                                                  2003             2004           2005
                                                  ----             ----           ----
                                                              (In millions)

 Net sales - point of origin:
                                                                      
   United States                               $   404.9        $  317.5       $  113.5
   Germany                                         510.1           294.7             -
   Belgium                                         150.7            98.8             -
   Norway                                          131.5            70.3             -
   Canada                                          249.7           158.5           63.9
   Taiwan                                           13.6            16.0           14.2
   Eliminations                                   (278.4)         (214.1)          (5.2)
                                               ---------        --------       --------

                                               $ 1,182.1        $  741.7       $  186.4
                                               =========        ========       ========

 Net sales - point of destination:
   United States                               $   423.7        $  294.6       $  149.5
   Europe                                          574.5           335.3            2.7
   Canada                                           85.5            56.8           25.0
   Asia and other                                   98.4            55.0            9.2
                                               ---------        --------       --------

                                               $ 1,182.1        $  741.7       $  186.4
                                               =========        ========       ========







                                                        Years ended December 31,
                                                  ------------------------------------
                                                  2003             2004           2005
                                                  ----             ----           ----
                                                              (In millions)
 Depreciation and amortization:
                                                                      
   Chemicals                                   $    39.4         $  21.8       $     -
   Component products                               14.8            14.2           10.9
   Corporate                                          .7              .4             .4
                                               ---------        --------       --------

                                               $    54.9        $   36.4       $   11.3
                                               =========        ========       ========

 Capital expenditures:
   Chemicals                                   $    35.3        $   10.8       $    -
   Component products                                8.9             5.3           10.5
   Corporate                                          .1              .1             .2
                                               ---------        --------       --------

                                               $    44.3        $   16.2       $   10.7
                                               =========        ========       ========





                                                               December 31,
                                                  ------------------------------------
                                                  2003             2004           2005
                                                  ----             ----           ----
                                                              (In millions)

 Total assets:
   Operating segments:
                                                                      
     Chemicals                                 $ 1,121.9        $     -        $     -
     Component products                            212.4           169.6          173.7
   Investment in Kronos Worldwide, Inc.             -              175.6          146.8
   Corporate and eliminations                      142.2           206.4          164.2
                                               ---------        --------       --------

                                               $ 1,476.5        $  551.6       $  484.7
                                               =========        ========       ========

 Net property and equipment:
   United States                               $    48.2        $   42.5       $   43.7
   Germany                                         252.4              -              -
   Canada                                           87.0            19.1           17.0
   Norway                                           50.8              -              -
   Belgium                                          64.9              -              -
   Netherlands                                       9.6             7.9             -
   Taiwan                                            5.7             5.7            8.2
   Other                                              .3              -              -
                                               ---------        --------       --------

                                               $   518.9        $   75.2       $   68.9
                                               =========        ========       ========


Note 4 - Accounts and other receivables:


                                                                   December 31,
                                                                 --------------
                                                             2004               2005
                                                             ----               ----
                                                                  (In thousands)

                                                                      
 Trade receivables                                       $   24,759         $   20,921
 Recoverable VAT and other receivables                          551              2,783
 Allowance for doubtful accounts                             (1,008)              (312)
                                                         ----------         ----------

                                                         $   24,302         $   23,392
                                                         ==========         ==========



Note 5 -       Marketable securities:


                                                                   December 31,
                                                                 --------------
                                                             2004               2005
                                                             ----               ----
                                                                  (In thousands)

                                                                      
   Valhi common stock                                    $   75,770         $   87,120
   Other                                                         23               -
                                                         ----------         ----------

                                                         $   75,793         $   87,120
                                                         ==========         ==========


     At December 31, 2004 and 2005, the Company owned  approximately 4.7 million
shares of Valhi common  stock and accounts for such stock as  available-for-sale
marketable  equity  securities  carried  at fair value  (based on quoted  market
prices).  The  aggregate  cost basis for the  Company's  investment  in Valhi at
December  31, 2004 and 2005 was $34.6  million.  The Valhi common stock owned by
the  Company  is  subject  to the  restrictions  on resale  pursuant  to certain
provisions  of the  Securities  and  Exchange  Commission  ("SEC") Rule 144. The
shares of Valhi  common  stock  cannot be voted by the  Company  under  Delaware
Corporation  Law,  but the Company does  receive  dividends  from Valhi on these
shares, when declared and paid. For financial reporting purposes,  Valhi reports
its proportional interest in these shares as treasury stock.

Note 6 - Inventories:


                                                                   December 31,
                                                                 --------------
                                                             2004               2005
                                                             ----               ----
                                                                  (In thousands)

                                                                      
 Raw materials                                           $    8,258         $    7,098
 In process products                                         10,827              9,899
 Finished products                                            9,696              5,541
                                                         ----------         ----------

                                                         $   28,781         $   22,538
                                                         ==========         ==========


     All of the  Company's  inventories  are related to the  component  products
operating segment.

Note 7 - Investment in affiliates:

     Kronos Worldwide,  Inc. At December 31, 2005, the Company held 17.5 million
shares of Kronos with a quoted market price of $29.01 per share, or an aggregate
market  value of $508  million,  (18.3  million  shares at  $40.75  per share at
December 31, 2004).

     At December  31,  2005,  Kronos  reported  total assets of $1.3 billion and
stockholders' equity of $410 million.  Kronos' total assets at December 31, 2005
include  current  assets of $525  million,  net property  and  equipment of $419
million and an investment in a TiO2 manufacturing joint venture of $115 million.
Kronos' total  liabilities at December 31, 2005 include  current  liabilities of
$205  million,  long-term  debt of $464  million,  accrued non current  OPEB and
pension costs  aggregating $150 million and non current deferred income taxes of
$53 million.  At December 31, 2004, Kronos reported total assets of $1.4 billion
and stockholders' equity of $470.8 million. Kronos' total assets at December 31,
2004 include  current  assets of $495.5  million,  net property and equipment of
$466.9 million and an investment in a TiO2 manufacturing joint venture of $120.3
million.  Kronos'  total  liabilities  at  December  31,  2004  include  current
liabilities of $212.9 million,  long-term debt of $519.4  million,  accrued OPEB
and pension  costs  aggregating  $72.6 million and non current  deferred  income
taxes of $60.1 million.

     During the year ended December 31, 2005,  Kronos reported net sales of $1.2
billion,  income from  operations of $175 million and net income of $71 million.
During the last six months of 2004, Kronos reported net sales of $569.5 million,
income from operations of $50.3 million and net income of $20.3 million. Kronos'
results of operations  for the first six months of 2004,  and for the year ended
December  31,  2003,  are  included  in the  Company's  consolidated  results of
operations.

     TiO2  manufacturing  joint  venture.  Kronos  Louisiana,  Inc.  ("KLA"),  a
wholly-owned  subsidiary  of Kronos,  owns a 50% interest in  Louisiana  Pigment
Company,  L.P.  ("LPC").  LPC is a  manufacturing  joint  venture  that  is also
50%-owned by Tioxide  Americas Inc.  ("Tioxide"),  a wholly-owned  subsidiary of
Huntsman  International  Holdings  LLC,  which  through  its  subsidiaries,   is
wholly-owned by Huntsman Holdings LLC. LPC owns and operates a  chloride-process
TiO2 plant in Lake Charles, Louisiana.

     KLA is  required  to purchase  one-half  of the TiO2  produced by LPC.  LPC
operates  on a  break-even  basis  and,  accordingly,  KLA  reports no equity in
earnings of LPC. Kronos' cost for its share of the TiO2 produced is equal to its
share of LPC's costs. Kronos' share of net costs is reported as cost of sales as
the  related  TiO2  acquired  from LPC is sold.  Distributions  from LPC,  which
generally  relate to excess cash  generated by LPC from its non-cash  production
costs, and  contributions to LPC, which generally relate to cash required by LPC
when it builds  working  capital,  are  reported  as part of cash  generated  by
operating  activities  in the Company's  Consolidated  Statements of Cash Flows.
Such  distributions are reported net of any contributions made to LPC during the
periods. Net distributions of $.9 million in 2003, and $8.3 million in the first
six months of 2004 are stated net of  contributions of $13.1 million in 2003 and
$8.1 million in the first half of 2004.

     LPC made net cash  distributions  of $1.8 million in 2003 and $16.6 million
in the first six months of 2004,  equally split between the partners.  Effective
July 1, 2004,  the Company no longer  consolidates  the  financial  position and
results of operations of Kronos and consequently accounts for Kronos' investment
in the TiO2 manufacturing  joint venture as part of the Company's  investment in
Kronos subsequent to that date.

     During  the  first six  months of 2004,  LPC  reported  revenues  of $102.0
million  (for  the  year  ended  December  31,  2003  -  $203.0  million,)  with
approximately  one-half  attributable  to each  partner  for  each  period.  LPC
operates on a break-even basis, consequently net income is nil for all periods.

Note 8 - Goodwill:

     Substantially  all of the  Company's  goodwill is related to the  component
products   operating   segment  and  was  generated   principally  from  CompX's
acquisitions  of certain  business units  completed prior to 2002, and to a 2005
acquisition.  The remaining  goodwill resulted from the acquisition of EWI prior
to 2003 and totaled approximately $6.4 million in 2002, 2003 and 2004.

     Changes  in the  carrying  amount of  goodwill  related  to the  components
products operating segment during the past three years is presented in the table
below.


                                                                Component products
                                                                 operating segment
                                                               --------------------
                                                                   (In millions)

                                                              
       Balance at December 31, 2002                                    $43.7
       Changes in foreign exchange rates                                 2.6
                                                                       -----

       Balance at December 31, 2003                                     46.3
       Impairment related to discontinued operations                    (6.5)
       Deferred tax adjustment                                         (26.9)
       Changes in foreign exchange rates                                 1.5
                                                                       -----

       Balance at December 31, 2004                                     14.4

       Goodwill acquired during the year                                 8.0
       Disposition of business                                          (1.4)
       Changes in foreign exchange rates                                 (.2)
                                                                       -----

       Balance at December 31, 2005                                    $20.8
                                                                       =====


     The Company has  assigned its goodwill  related to its  component  products
segment  to three  reporting  units (as that term is  defined  in SFAS No.  142)
within that  operating  segment:  one  consisting of CompX's  security  products
operations,  one consisting of CompX's European operations and one consisting of
CompX's Michigan,  Canadian and Taiwanese  operations.  Under SFAS No. 142, such
goodwill  is  deemed  to not be  impaired  if the  estimated  fair  value of the
applicable  reporting  unit exceeds the  respective  net carrying  value of such
reporting  unit,  including  the  allocated  goodwill.  If the fair value of the
reporting  unit is less than carrying  value,  then a goodwill  impairment  loss
would be recognized  equal to the excess,  if any, of the net carrying  value of
the  reporting  unit  goodwill  over its  implied  fair  value  (up to a maximum
impairment equal to the carrying value of the goodwill).  The implied fair value
of  reporting  unit  goodwill  would be the  amount  equal to the  excess of the
estimated  fair  value of the  reporting  unit  over the  amount  that  would be
allocated  to the  tangible  and  intangible  net assets of the  reporting  unit
(including  unrecognized  intangible  assets) as if such reporting unit had been
acquired in a purchase  business  combination  accounted for in accordance  with
GAAP as of the date of the impairment testing.

     In determining the estimated fair value of the reporting units, the Company
uses  appropriate  valuation  techniques,  such as  discounted  cash  flows.  In
accordance  with GAAP, the Company  reviews  goodwill for impairment  during the
third  quarter of each year.  Goodwill  will also be reviewed for  impairment at
other times  during each year when events or changes in  circumstances  indicate
that an  impairment  might be  present.  No  goodwill  impairments  relating  to
continuing  operations were deemed to exist as a result of the Company's  annual
impairment review completed during 2003, 2004 or 2005. However,  the Company did
recognize an  impairment  of goodwill  related to its disposed  European  Thomas
Regout operations in December 2004. See Note 24.

     As discussed in Note 1, prior to October 2004 CompX was not a member of the
Contran Tax Group, and the Company  provided  deferred income taxes with respect
to its investment in CompX. Effective October 2004, CompX became a member of the
Contran  Tax Group,  and the Company no longer  provides  such  deferred  income
taxes.  In accordance  with GAAP,  and as a result of CompX becoming a member of
the Contran Tax Group, a net $26.9 million  deferred tax  liability,  previously
provided with respect to the  Company's  investment  in CompX,  were  eliminated
through a reduction in goodwill at December 31, 2004.


Note 9 - Intangible and other noncurrent assets:


                                                                   December 31,
                                                                 --------------
                                                             2004               2005
                                                             ----               ----
                                                                  (In thousands)

                                                                      
     Definite-lived customer list intangible asset       $    1,487         $    1,115
     Patents and other intangible assets                      1,703              2,317
     Other                                                      525              2,067
                                                         ----------         ----------

                                                         $    3,715         $    5,499
                                                         ==========         ==========


     Definite-lived customer list intangible asset resulted from the acquisition
of EWI RE, Inc. prior to 2003. See Note 8. This intangible asset is amortized on
a straight-line  basis over a period of seven years  (approximately  three years
remaining at December 31, 2005) with no assumed  residual value and is presented
net of accumulated  amortization of $1.1 million and $1.5 million as of December
31, 2004 and 2005, respectively. The patents and other intangible assets, all of
which  relate to CompX,  are  stated  net of  accumulated  amortization  of $1.7
million at December 31, 2004 and $2.3 million at December 31, 2005.

     Aggregate  amortization  expense of intangible assets was $606,000 in 2003,
$603,000 in 2004 and $686,000 2005, and is expected to be approximately $675,000
in each of 2006 through 2008 and $300,000 in 2009 and 2010.

Note 10 - Accrued liabilities:


                                                                   December 31,
                                                                 --------------
                                                             2004               2005
                                                             ----               ----
                                                                  (In thousands)

                                                                      
     Employee benefits                                   $   14,775         $   10,933
     Professional fees                                        2,654              5,269
     Other                                                    5,705             13,657
                                                         ----------         ----------

                                                         $   23,134         $   29,859
                                                         ==========         ==========


Note 11 -      Other noncurrent liabilities:


                                                                   December 31,
                                                                 --------------
                                                             2004               2005
                                                             ----               ----
                                                                  (In thousands)

                                                                      
   Insurance                                             $    2,507         $    2,224
   Other                                                      1,521                 22
                                                         ----------         ----------

                                                         $    4,028         $    2,246
                                                         ==========         ==========


Note 12 -      Long-term debt:


                                                                   December 31,
                                                                 --------------
                                                             2004               2005
                                                             ----               ----
                                                                  (In thousands)
 CompX International Inc. and subsidiaries:
                                                                      
   Other indebtedness                                    $      127         $    1,596
   Less current maturities                                       42                171
                                                         ----------         ----------

                                                         $       85         $    1,425
                                                         ==========         ==========


     CompX.  At December 31, 2005 CompX has a $50.0  million  secured  revolving
bank credit facility that matures in January 2009 and bears interest, at CompX's
option, at rates based on either the prime rate or LIBOR. The credit facility is
collateralized  by a  pledge  of 65%  of  the  ownership  interests  in  CompX's
first-tier  foreign  subsidiaries.  The facility  contains certain covenants and
restrictions  customary in lending  transactions of this type which, among other
things, restricts the ability of CompX and its subsidiaries to incur debt, incur
liens,  pay  dividends  or  merge  or  consolidate  with,  or  transfer  all  or
substantially  all of their assets,  to another entity. In the event of a change
of control of CompX, as defined,  the lenders would have the right to accelerate
the maturity of the  facility.  At December  31, 2005 there were no  outstanding
draws against the facility and the full amount of the facility was available for
borrowing.

     Other indebtedness at December 31, 2005 includes certain industrial revenue
bonds assumed in connection with the August 2005 business acquisition  discussed
in Note 2. Such  indebtedness  was fully  prepaid in January  2006 for an amount
equal to its carrying value.

     Kronos  and  its  subsidiaries.   In  July  2004,  the  Company  ceased  to
consolidate the financial position of Kronos. See Note 1.

Note 13 - Minority interest:


                                                                   December 31,
                                                                 --------------
                                                             2004               2005
                                                             ----               ----
                                                                  (In thousands)
 Minority interest in net assets:
                                                                      
   CompX International, Inc.                             $   49,154         $   45,630
     NL Environmental Management Services, Inc.               9,250               -
                                                         ----------         ----------

                                                         $   58,404         $   45,630
                                                         ==========         ==========




                                                        Years ended December 31,
                                                  ------------------------------------
                                                  2003             2004           2005
                                                  ----             ----           ----
                                                              (In millions)
 Minority interest in net earnings:
                                                                      
   Kronos Worldwide, Inc.                      $   1,602        $145,837       $   -
   CompX International, Inc.                       1,814           2,993            290
   NL Environmental Management Services, Inc.        370             747             62
   Subsidiary of Kronos Worldwide, Inc.               72              19           -
                                               ---------        --------       --------

                                               $   3,858        $149,596       $    352
                                               =========        ========       ========


     Kronos Worldwide,  Inc. The Company commenced recognizing minority interest
in Kronos' net assets and net earnings  following  the  Company's  December 2003
distribution  of a  portion  of  the  shares  of  Kronos  common  stock  to  its
stockholders  and ceased to report  minority  interest in Kronos' net assets and
net earnings commencing July 1, 2004. See Notes 1 and 2.

     Other. Other minority interest related  principally to NL's  majority-owned
environmental management subsidiary,  NL Environmental Management Services, Inc.
("EMS").  EMS was established in 1998, at which time EMS  contractually  assumed
certain of NL's  environmental  liabilities.  EMS' earnings were based, in part,
upon its ability to favorably  resolve these  liabilities on an aggregate basis.
NL  continues  to  consolidate  EMS and  provides  accruals  for the  reasonably
estimable  costs  for the  settlement  of  EMS'  environmental  liabilities,  as
discussed in Note 19.

     In June 2005, EMS received notices from the three minority  shareholders of
EMS indicating they were each exercising their right,  which became  exercisable
on June 1, 2005, to require EMS to purchase their preferred  shares in EMS as of
June 30, 2005 for a formula-determined amount as provided in EMS' certificate of
incorporation.  In accordance with the certificate of incorporation,  EMS made a
determination  in good faith of the amount payable to the three former  minority
shareholders to purchase their shares of EMS stock,  which amount may be subject
to review by a third party. In June 2005, EMS set aside funds as payment for the
shares of EMS, but as of December 31, 2005 the former minority shareholders have
not tendered their shares,  and  accordingly  the liability owed to these former
minority  shareholders,  which has not been extinguished for financial reporting
purposes as of December 31, 2005, is  classified as a current  liability at such
date. Similarly, the funds which have been set aside are classified as a current
asset at such date.

     Discontinued  operations.  Minority  interest  in  losses  of  discontinued
operations was $1.4 million in 2003,  $3.9 million in 2004 and $200,000 in 2005.
See Note 24.

Note 14 - Stockholders' equity:


                                                              Shares of common stock
                                                    -----------------------------------------
                                                     Issued        Treasury       Outstanding
                                                    --------      ----------      -----------
                                                                (In thousands)

                                                                          
 Balance at December 31, 2002                        66,845          (19,155)        47,690

 Treasury shares reissued                              -                 101            101
                                                   --------         --------       --------

 Balance at December 31, 2003                        66,845          (19,054)        47,791

 Treasury shares reissued                                                598            598
 Treasury shares retired                            (18,456)          18,456           -
 Common stock issued                                     51             -                51
                                                   --------         --------       --------

 Balance at December 31, 2004                        48,440             -            48,440

 Common stock issued                                    122             -               122
                                                   --------         --------       --------

 Balance at December 31, 2005                        48,562             -            48,562
                                                   ========         ========       ========


     NL common stock options.  The NL Industries,  Inc. 1998 Long-Term Incentive
Plan (the "NL Option Plan") provides for the  discretionary  grant of restricted
common  stock,  stock  options,  stock  appreciation  rights  ("SARs") and other
incentive  compensation  to officers and other key  employees of the Company and
nonemployee  directors.  Although  certain stock options  granted  pursuant to a
similar  plan which  preceded  the NL Option Plan  ("Predecessor  Option  Plan")
remain  outstanding  at December 31, 2005, no additional  options may be granted
under the Predecessor Option Plan.

     Up to five million shares of NL common stock may be issued  pursuant to the
NL Option Plan and, at December 31, 2005,  4,084,800  shares were  available for
future grants. The NL Option Plan provides for the grant of options that qualify
as  incentive  options and for options  which are not so  qualified.  Generally,
stock options and SARs (collectively, "options") are granted at a price equal to
or  greater  than 100% of the  market  price at the date of  grant,  vest over a
five-year period and expire ten years from the date of grant.  Restricted stock,
forfeitable  unless  certain  periods of employment  are  completed,  is held in
escrow in the name of the grantee until the restriction period expires.  No SARs
have been granted under the NL Option Plan.

     Following  the  December  2003  distribution  of a portion of the shares of
Kronos common stock held by the Company, the exercise price for each outstanding
option to  purchase  NL common  stock was  reduced by $8.63 (or  one-half of the
closing  price of Kronos'  common  stock on December 8, 2003,  the  distribution
date).

     Changes in outstanding  options granted pursuant to the NL Option Plan, the
Predecessor Option Plan and the nonemployee  director plan are summarized in the
table below.


                                                                                   Amount        Weighted-
                                                                  Exercise         payable        average
                                                                  price per         upon          exercise
                                                      Shares        share         exercise         price
                                                      ------     -----------     ----------     -----------
                                                           (In thousands, except per share amounts)

                                                                             
 Outstanding at December 31, 2002                    1,261      $ 8.69-21.97      $ 22,059        $ 17.50

 Exercised                                             (95)      11.28-15.19        (1,271)         13.43
 Canceled                                              (26)       9.34-20.11          (391)         15.00
 Adjusted for Kronos common stock
    distribution                                       -              -             (9,885)          8.63
                                                     -----      ------------      --------

 Outstanding at December 31, 2003                    1,140        0.06-13.34        10,512           9.22

 Exercised                                            (643)       0.06-13.34        (6,073)          9.44
 Canceled                                             (252)       3.56-13.34        (2,038)          8.10
                                                     -----      ------------      --------

 Outstanding at December 31, 2004                      245        2.66-13.34         2,401           9.80

 Exercised                                            (116)       5.63-11.89        (1,222)         10.53
 Cancelled                                              (1)            11.49           (14)         11.49
                                                     -----      ------------      --------

 Outstanding at December 31, 2005                      128      $ 2.66-11.89      $  1,165        $  9.11
                                                     =====      ============      ========


     At December 31, 2005 all of the outstanding options were exercisable,  with
an aggregate  intrinsic value (defined as the excess of the market price of NL's
common  stock over the  exercise  price) of  $600,000.  All of such  outstanding
options had  exercise  prices less than the  Company's  December 31, 2005 quoted
market  price of $14.09 per share.  Outstanding  options at  December  31,  2005
expire at various dates through  2011.  Shares issued under the incentive  stock
plan are  generally  newly-issued  shares,  however  prior to September 30, 2004
shares  issued  under the  incentive  stock plan were issued from NL's  treasury
shares.

     The following table summarizes the Company's stock options  outstanding and
exercisable as of December 31, 2005 by price range.


                      Options outstanding                                        Options exercisable
- -----------------------------------------------------------------------    ----------------------------
                                             Weighted-
                                              average         Weighted-                        Weighted-
                            Outstanding      remaining         average       Exercisable        average
          Range of              at          contractual       exercise           at            exercise
       exercise prices       12/31/05           life            price          12/31/05          price
     -------------------    -----------     -----------      ----------      ------------     -----------

                                                                          
     $  2.66  -  $  3.25        8,550          2.8            $   2.74           8,550         $   2.74
     $  5.19  -  $  5.81       38,350          3.8            $   5.58          38,350         $   5.58
     $  9.34  -  $ 11.49       80,950          4.8            $  11.46          80,950         $  11.46
                             --------                                         --------

                              127,850          4.6            $   9.11         127,850         $   9.11
                             ========                                         ========


     The intrinsic value of these NL options  exercised  aggregated  $100,000 in
2003,  $3.1 million in 2004 and $1.3 million in 2005, and the related income tax
benefit from such exercises was less than $50,000 in 2003,  $1.1 million in 2004
and $500,000 in 2005.

     Stock option plan of  subsidiaries  and  affiliates.  Through  December 31,
2005,  Kronos has not granted any options to purchase  its common  stock.  CompX
maintains a stock option plan that provides for the grant of options to purchase
its common stock. At December 31, 2005, options to purchase 470,000 CompX shares
were  outstanding  with exercise prices ranging from $10.00 to $20.00 per share,
or an aggregate amount payable upon exercise of $8.6 million.

     Treasury  stock.  During the third quarter of 2004,  the Company  cancelled
approximately  18.5 million shares of its common stock that  previously had been
held in treasury.  The aggregate $426.1 million cost of such treasury shares was
allocated to common stock at par value,  additional paid in capital and retained
earnings in accordance with GAAP. Such  cancellation had no impact on the net NL
shares outstanding for financial reporting purposes.

     Dividends.  On March 15, 2006, the Company's Board of Directors  declared a
regular quarterly cash dividend of $.125 per share to be paid to stockholders of
record as of March 27, 2006 to be paid on March 31, 2006

     Other. The pro forma  information  included in Note 1, required by SFAS No.
123,  "Accounting  for  Stock-Based  Compensation,"  as amended,  is based on an
estimation  of the fair value of options  issued  subsequent  to January 1, 1995
using the Black-Scholes  stock option valuation model. The  Black-Scholes  model
was not developed for use in valuing  employee stock options,  but was developed
for use in  estimating  the fair  value of traded  options  that have no vesting
restrictions  and are fully  transferable.  In addition,  it requires the use of
subjective  assumptions  including  expectations  of future  dividends and stock
price  volatility.  Such  assumptions are only used for making the required fair
value  estimate and should not be considered  as  indicators of future  dividend
policy  or  stock  price   appreciation.   Because  changes  in  the  subjective
assumptions can materially affect the fair value estimate,  and because employee
stock options have characteristics  significantly different from those of traded
options,  the use of the  Black-Scholes  option-pricing  model may not provide a
reliable  estimate of the fair value of employee  stock  options.  The pro forma
impact on net income and basic  earnings  per share  disclosed  in Note 1 is not
necessarily  indicative  of future  effects on net income or earnings per share.
See also Note 23.

Note 15 - Income taxes:


                                                        Years ended December 31,
                                                  ------------------------------------
                                                  2003             2004           2005
                                                  ----             ----           ----
                                                              (In millions)

 Pre-tax income (loss):
                                                                      
   U.S.                                        $   (15.5)       $   23.8       $   39.3
   Non-U.S.                                         88.9            45.4            8.9
                                               ---------        --------       --------

                                               $    73.4        $   69.2       $   48.2
                                               =========        ========       ========

 Expected tax expense (benefit), at U.S.
  federal statutory income tax rate of 35%     $    25.7        $   24.2       $   16.9
 Non-U.S. tax rates                                 (1.2)            (.5)           (.3)
 Incremental U.S. tax and rate differences
  on equity in earnings                             42.3            29.1            3.1
 Change in deferred income tax valuation
  allowance, net                                    (7.2)         (308.4)            -
 Nondeductible expenses                              3.4             2.3             .3
 U.S. state income taxes, net                         .1              .1             .5
 Refund of prior year German income taxes          (38.0)           (3.0)            -
 Excess of book basis over tax basis of
  Kronos common stock:
    Sold                                              -               -              .9
    Distributed                                     30.3            21.2            1.9
 Tax contingency reserve adjustment, net            30.5           (13.4)          (7.2)
 Other, net                                          2.0             8.7           (1.5)
                                               ---------        --------       --------

                                               $    87.9        $ (239.7)      $   14.6
                                               =========        ========       ========






                                                        Years ended December 31,
                                                  ------------------------------------
                                                  2003             2004           2005
                                                  ----             ----           ----
                                                              (In millions)
 Components of income tax expense (benefit):
   Currently payable (refundable):
                                                                      
     U.S. federal and state                    $    30.0        $   13.6       $   21.7
     Non-U.S.                                      (34.0)           11.8            3.5
                                               ---------        --------       --------

                                                    (4.0)           25.4           25.2
                                               ---------        --------       --------
   Deferred income taxes (benefit):
     U.S. federal and state                         54.3             8.2          (10.5)
     Non-U.S.                                       37.6          (273.3)           (.1)
                                               ---------        --------       --------

                                                    91.9          (265.1)         (10.6)
                                               ---------        --------       --------

                                               $    87.9        $ (239.7)      $   14.6
                                               =========        ========       ========





                                                        Years ended December 31,
                                                  ------------------------------------
                                                  2003             2004           2005
                                                  ----             ----           ----
                                                              (In millions)
 Comprehensive provision for
  income taxes (benefit) allocable to:
                                                                      
   Income from continuing operations           $    87.9        $ (239.7)      $   14.6
   Discontinued operations                          (2.6)           (4.6)           (.4)
   Retained earnings                                48.7            34.8            3.0
   Additional paid-in capital                       64.5            52.4             .1
   Other comprehensive income:
     Marketable securities                           9.4             1.9            3.9
     Pension liabilities                           (12.2)            1.0           (5.4)
     Currency translation                            0.1            (7.2)          (3.5)
                                               ---------        --------       --------

                                               $   195.8        $ (161.4)      $   12.3
                                               =========        ========       ========


     The  components  of the net deferred tax liability at December 31, 2004 and
2005, and changes in the deferred income tax valuation allowance during the past
three years, are summarized in the following tables.


                                                                                 December 31,
                                                             ---------------------------------------------------
                                                                       2004                        2005
                                                             -----------------------     -----------------------
                                                             Assets      Liabilities     Assets      Liabilities
                                                             ------      -----------     ------      -----------
                                                                                (In millions)
 Tax effect of temporary differences
  related to:
                                                                                           
   Inventories                                              $  -          $  -           $   .8        $    -
   Marketable securities                                       -            (12.4)           -          (16.4)
   Property and equipment                                      -             (9.5)           -           (6.0)
   Accrued OPEB costs                                          4.8           -              4.2            -
   Accrued pension cost                                        3.2           -               .4            -
   Accrued environmental liabilities and
    other deductible differences                              24.8           -             19.7            -
   Other accrued liabilities and deductible
    differences                                                4.3           -              2.7            -
   Other taxable differences                                   -            (71.4)           -          (35.7)
   Investments in subsidiaries and
    affiliates                                                 4.5          (70.0)           -          (69.9)
 Tax loss and tax credit carryforwards                         8.6             -             .5            -
                                                            ------        -------        ------       -------
   Adjusted gross deferred tax assets
    (liabilities)                                             50.2         (163.3)         28.3        (128.0)
 Netting of items by tax jurisdiction                        (36.1)          36.1         (21.0)         21.0
                                                            ------        -------        ------       -------
                                                              14.1         (127.2)          7.3        (107.0)
 Less net current deferred tax asset
  (liability)                                                 13.6          (23.8)          7.3            -
                                                            ------        -------        ------       -------

   Net noncurrent deferred tax asset
    (liability)                                             $   .5        $(103.4)       $   -        $ (107.0)
                                                            ======        =======        ======       ========






                                                        Years ended December 31,
                                                  ------------------------------------
                                                  2003             2004           2005
                                                  ----             ----           ----
                                                              (In millions)

Decrease (increase) in valuation allowance:
  Recognition of certain deductible tax
   attributes for which the benefit had not
   previously been recognized under the
                                                                       
   "more-likely-than-not" recognition criteria   $  (7.2)        $ 308.4        $    -
  Foreign currency translation                      28.2             3.2             -
  Deconsolidation of Kronos                           -              3.2             -
  Offset to the change in gross deferred
   income tax assets due principally to
   redeterminations of certain tax attributes
   and implementation of certain tax
   planning strategies                             (12.5)         (121.0)            -
                                                 -------         -------        -------

                                                 $   8.5         $ 193.8        $    -
                                                 =======         =======        =======


     Certain U.S.  and non-U.S.  tax returns of the Company and Kronos are being
examined and tax  authorities  have or may propose tax  deficiencies,  including
penalties and interest. For example:

o    Kronos  received  a  preliminary  tax  assessment  related to 1993 from the
     Belgian tax  authorities  proposing  tax  deficiencies,  including  related
     interest,  of  approximately  euro 6 million ($7  million at  December  31,
     2005).  Kronos  filed a protest to this  assessment,  and  believes  that a
     significant  portion of the  assessment is without  merit.  The Belgian tax
     authorities  have filed a lien on the fixed assets of Kronos'  Belgian TiO2
     operations  in  connection  with this  assessment.  In April  2003,  Kronos
     received a notification from the Belgian tax authorities of their intent to
     assess a tax deficiency  related to 1999 that,  including  interest,  would
     have aggregated approximately euro 9 million ($11 million).  Kronos filed a
     written  response to the assessment,  and in September 2005 the Belgian tax
     authorities withdrew the assessment.

o    The  Norwegian  tax  authorities  have  notified  Kronos of their intent to
     assess tax  deficiencies  of  approximately  kroner 12 million ($2 million)
     relating  to the years  1998  through  2000.  Kronos has  objected  to this
     proposed assessment.

o    Kronos has received a tax  assessment  from the  Canadian  tax  authorities
     related to the years 1998 and 1999  proposing tax  deficiencies,  including
     interest,  of  approximately  Cdn. $5 million ($4 million).  Kronos filed a
     protest and in October 2005, the Canadian tax authorities  agreed to reduce
     the assessment and settle all issues, including interest, for approximately
     Cdn. $2 million ($1.7 million).

o    During the third quarter of 2005,  Kronos reached an agreement in principle
     with the German tax authorities  regarding such tax authorities'  objection
     to the value  assigned  to certain  intellectual  property  rights  held by
     Kronos' operating subsidiary in Germany.  Under the agreement in principle,
     the value  assigned to such  intellectual  property  for German  income tax
     purposes  will be reduced  retroactively,  resulting  in a reduction in the
     amount of Kronos' net operating loss  carryforward  in Germany as well as a
     future reduction in the amount of amortization expense attributable to such
     intellectual property.

o    The $7.2 million non-cash tax contingency reserve adjustment  recognized in
     the  year  ended   December  31,  2005   relates   primarily  to  favorable
     developments with respect to certain income tax items of NL in the U.S.

     No  assurance  can be given that these tax matters  will be resolved in the
Company's  favor in view of the inherent  uncertainties  involved in  settlement
initiatives,  court  and  tax  proceedings.  The  Company  believes  that it has
provided  adequate  accruals for additional  taxes and related  interest expense
which may  ultimately  result from all such  examinations  and believes that the
ultimate  disposition of such  examinations  should not have a material  adverse
effect  on  its  consolidated  financial  position,  results  of  operations  or
liquidity.

     Under  GAAP,  a company is  required  to  recognize  a deferred  income tax
liability  with respect to the  incremental  U.S.  taxes (federal and state) and
foreign withholding taxes that would be incurred when undistributed  earnings of
a  foreign  subsidiary  are  subsequently  repatriated,  unless  management  has
determined that those undistributed  earnings are permanently reinvested for the
foreseeable future. Prior to the third quarter of 2005, CompX had not recognized
a  deferred  tax  liability  related  to such  incremental  income  taxes on the
undistributed earnings of its foreign operations, as those earnings were subject
to specific  permanent  reinvestment  plans. GAAP requires a company to reassess
the  permanent  reinvestment  conclusion  on an ongoing  basis to  determine  if
management's  intentions  have  changed.  As of September  30,  2005,  and based
primarily upon changes in CompX management's  strategic plans for certain of its
non-U.S.  operations,  CompX's  management has determined that the undistributed
earnings of such  subsidiaries  can no longer be  considered  to be  permanently
reinvested,  except  for the  pre-2005  earnings  of its  Taiwanese  subsidiary.
Accordingly,  and in accordance  with GAAP,  CompX  recognized an aggregate $9.0
million  provision  for  deferred  income taxes on the  aggregate  undistributed
earnings of these foreign subsidiaries.

     At December 31, 2005,  CompX had $1.6  million of U.S. net  operating  loss
carryforwards  expiring in 2007 through 2017.  Utilization of such net operating
loss  carryforwards  is  limited to  approximately  $400,000  per tax year.  The
Company  utilized   approximately   $400,000  of  such  carryforwards  in  2005,
approximately  $800,000 in 2004,  which included two tax years (See Note 1), and
$400,000 in 2003.  The Company  believes  it is  more-likely-than-not  that such
carryforwards  will be utilized to reduce  future  income tax  liabilities,  and
accordingly  the Company has not provided a deferred  income tax asset valuation
allowance to offset the benefit of such carryforwards.

     At December 31, 2003, Kronos had a significant amount of net operating loss
carryforwards for German corporate and trade tax purposes,  all of which have no
expiration  date. These net operating loss  carryforwards  were generated by KII
principally  during  the 1990's  when KII had a  significantly  higher  level of
outstanding indebtedness than is currently outstanding.  For financial reporting
purposes,  however, the benefit of such net operating loss carryforwards had not
previously  been  recognized  because  Kronos  did  not  believe  they  met  the
"more-likely-than-not"  recognition  criteria,  and  accordingly  Kronos  had  a
deferred income tax asset valuation allowance offsetting the benefit of such net
operating loss carryforwards and Kronos' other tax attributes in Germany. At the
end of the second quarter of 2004, and based on all available  evidence,  Kronos
concluded  that the benefit of the net operating  loss  carryforwards  and other
German tax attributes now met the  "more-likely-than-not"  recognition criteria,
and that reversal of the deferred income tax asset valuation  allowance  related
to Germany was appropriate. Given the magnitude of the German net operating loss
carryforwards  and the fact that  current  provisions  of  German  law limit the
annual  utilization of net operating loss carryforwards to 60% of taxable income
after the first euro 1 million  of taxable  income,  KII  believes  it will take
several years to fully utilize the benefit of such loss carryforwards.  However,
given that Kronos had  generated  positive  taxable  income in Germany in recent
years,  combined with the fact that the net operating loss carryforwards have no
expiration  date,  Kronos  concluded,  among  other  reasons,  that  it was  now
appropriate  to  reverse  all of the  valuation  allowance  related  to the  net
operating  loss  carryforwards  because  the  benefit  of  such  operating  loss
carryforwards now meet the  "more-likely-than-not"  recognition criteria. Of the
$280.7 million valuation  allowance related to Germany which was reversed during
2004,  and in accordance  with the  applicable  GAAP related to  accounting  for
income taxes at interim periods,  (i) $8.7 million was reversed during the first
six months of 2004 that related  primarily to the  utilization of the German net
operating  loss  carryforwards  during  such  period,  (ii)  $268.6  million was
reversed as of June 30, 2004 and (iii) Kronos  reversed $3.4 million  during the
last six months of 2004.

     NL's and NL's subsidiary,  EMS's, 1998 U.S. federal income tax returns were
examined by the U.S. tax authorities,  and NL and EMS granted  extensions of the
statute of limitations  for  assessments of tax with respect to their 1998, 1999
and 2000 income tax returns until  September 30, 2005.  During the course of the
examination, the IRS proposed a substantial tax deficiency,  including interest,
related  to a  restructuring  transaction.  In an  effort  to  avoid  protracted
litigation and minimize the hazards of such litigation,  NL applied to take part
in an IRS  settlement  initiative  applicable  to  transactions  similar  to the
restructuring  transaction,  and in April 2003 NL received notification from the
IRS that NL had  been  accepted  into  such  settlement  initiative.  Under  the
initiative,  a final settlement with the IRS is to be reached through  expedited
negotiations and, if necessary,  through a specified arbitration  procedure.  NL
reached an  agreement  with the IRS  concerning  the  settlement  of this matter
pursuant to which,  among other things,  the Company agreed to pay approximately
$21 million, including interest, up front as a partial payment of the settlement
amount  (which  amount  was paid  during  2005 and was  classified  as a current
liability  at December  31,  2004),  and NL will be required  to  recognize  the
remaining  settlement  amount in its taxable income over the 15-year time period
beginning in 2004. NL had  previously  provided  accruals to cover its estimated
additional tax liability (and related  interest)  concerning  this matter.  As a
result of the  settlement,  NL decreased its previous  estimate of the amount of
additional  income  taxes  and  interest  it will  be  required  to pay,  and NL
recognized an $17.4 million tax benefit in 2004 related to the revised estimate.
In addition,  during 2004,  the Company  recognized a $31.1  million tax benefit
related to the  reversal  of a deferred  income  tax asset  valuation  allowance
related  to  certain  tax  attributes  of EMS  which  NL  believed  now  met the
"more-likely-than-not"  recognition  criteria. A majority of the deferred income
tax asset  valuation  allowance at December 31, 2003,  related to net  operating
loss  carryforwards of EMS. As a result of the settlement  agreement,  NL (which
previously was not allowed to utilize such net operating loss  carryforwards  of
EMS) utilized such carryforwards in its 2003 taxable year,  eliminating the need
for a valuation  allowance related to such  carryforwards.  The remainder of the
deferred income tax asset  valuation  allowance  reversed  related to deductible
temporary differences  associated with accrued environmental  obligations of EMS
which NL now believed met the "more-likely-than-not" recognition criteria since,
as a result of the settlement  agreement,  such  obligations and the related tax
deductions have been or will be included in NL's taxable income.

     In the first quarter of 2003, KII was notified by the German Federal Fiscal
Court that the Court had ruled in KII's favor concerning a claim for refund suit
in which KII sought  refunds of prior taxes paid during the periods 1990 through
1997. KII and KII's German  operating  subsidiary  were required to file amended
tax returns with the German tax  authorities to receive  refunds for such years,
and all of such amended  returns were filed  during 2003.  Such amended  returns
reflected an aggregate  net refund of taxes and related  interest to KII and its
German  operating  subsidiary  of euro 26.9  million  ($32.1  million),  and the
Company  recognized  the  benefit of these net  refunds  in its 2003  results of
operations.  For the year ended December 31, 2004, the Company  recognized a net
refund of euro 2.5 million ($3.1  million)  related to  additional  net interest
which has accrued on the outstanding  refund amount.  Through December 2004, KII
and its  German  operating  subsidiary  had  received  net  refunds of euro 35.6
million ($44.7 million when received).  All refunds relating to the periods 1990
to 1997 were  received by December 31, 2004.  In addition to the refunds for the
1990 to 1997 periods,  the court ruling also resulted in a refund of 1999 income
taxes and interest, and the Company recognized euro 21.5 million ($24.6 million)
in 2003.

     In October  2004,  the American  Jobs Creation Act of 2004 was enacted into
law.  The new law  provided for a special 85%  deduction  for certain  dividends
received from a controlled foreign  corporation in 2005. In the third quarter of
2005, the Company and Kronos each completed its evaluation of this new provision
and determined  that it would not benefit from such special  dividends  received
deduction.

     In January  2005,  CompX  completed  its  disposition  of the Thomas Regout
operations  in Europe  (see Note 24 to the  financial  statements).  The Company
generated a $4.2 million  income tax benefit  associated  with the U.S.  capital
loss expected to be realized in the first quarter of 2005 upon completion of the
sale of the Thomas Regout  operations.  Under  applicable GAAP, CompX recognized
the benefit of such capital loss in the fourth  quarter of 2004 at the time such
operations were classified as held for sale. See Notes 1 and 24.

Note 16 - Employee benefit plans:

     Defined  benefit  plans.  The Company  maintains  various  defined  benefit
pension plans.  Non-U.S.  employees  (associated with a former disposed business
unit in the United Kingdom) are covered by plans in their  respective  countries
and a majority of U.S.  employees are eligible to  participate in a contributory
savings plan.  Variances from actuarially assumed rates will result in increases
or decreases in accumulated  pension  obligations,  pension  expense and funding
requirements  in future  periods.  At December 31, 2005,  the Company  currently
expects to contribute  the  equivalent of  approximately  $450,000 to all of its
defined benefit pension plans during 2006.

     As  discussed  in Note 1,  effective  July 1,  2004 the  Company  ceased to
consolidate  Kronos and commenced  accounting  for its interest in Kronos by the
equity  method.  Accordingly,  commencing  July 1, 2004,  the Company  ceased to
consolidate the employee benefit obligations and expenses of Kronos.

     The funded status of the  Company's  defined  benefit  pension  plans,  the
components of net periodic  defined benefit pension cost (income) related to the
Company's  consolidated  business segments and charged to continuing  operations
and the  rates  used in  determining  the  actuarial  present  value of  benefit
obligations are presented in the tables below. The Company uses a September 30th
measurement date for their defined benefit pension plans.




                                                             Years ended December 31,
                                                            -------------------------
                                                             2004               2005
                                                             ----               ----
                                                                  (In thousands)
 Change in projected benefit obligations ("PBO"):
                                                                      
   Benefit obligations at beginning of the year          $  377,634         $   52,424
   Service cost                                               3,379               -
   Interest cost                                             11,655              3,020
   Participant contributions                                    716                 12
   Actuarial losses                                           2,832              4,137
   Change in foreign currency exchange rates                 15,739               (930)
   Benefits paid                                            (12,118)            (3,224)
   Adjustment to cease consolidation of Kronos             (347,413)              -
                                                         ----------         ----------

       Benefit obligations at end of the year            $   52,424         $   55,439
                                                         ==========         ==========

 Change in plan assets:
   Fair value of plan assets at beginning of the year    $  241,235         $  43,901
   Actual return on plan assets                              17,644            17,352
   Employer contributions                                     9,106               682
   Participant contributions                                    716                12
   Change in foreign currency exchange rates                 10,198              (640)
   Benefits paid                                            (12,118)           (3,224)
   Adjustment to cease consolidation of Kronos             (222,880)             -
                                                         ----------         ----------

       Fair value of plan assets at end of year          $   43,901         $  58,083
                                                         ==========         ==========
 Funded status at end of the year:
   Plan assets more (less) than PBO                      $   (8,523)        $   2,644
   Unrecognized actuarial losses                             10,668               589
   Unrecognized net transition obligations                     (141)              (63)
                                                         ----------         ----------

                                                         $    2,004         $   3,170
                                                         ==========         ==========

 Amounts recognized in the balance sheet:
   Accrued pension costs:
     Current                                             $     (384)        $    (428)
     Noncurrent                                              (7,968)             (942)
   Accumulated other comprehensive income                    10,356             4,540
                                                         ----------         ----------

                                                         $    2,004         $   3,170
                                                         ==========         ==========




                                                        Years ended December 31,
                                                  ------------------------------------
                                                  2003             2004           2005
                                                  ----             ----           ----
                                                              (In millions)

 Net periodic pension cost (income):
                                                                       
   Service cost benefits                        $  5,347        $  3,379        $   -
   Interest cost on PBO                           18,225          11,655           3,020
   Expected return on plan assets                (17,580)        (11,181)         (4,051)
   Amortization of prior service cost                354             285            -
   Amortization of net transition obligations        733             262             (67)
   Recognized actuarial losses                     1,800           2,389             384
                                                --------        --------        --------

                                                $  8,879        $  6,789        $   (714)
                                                ========        ========        ========


     The  weighted-average  discount rate  assumptions  used in determining  the
actuarial present value of benefit  obligations as of December 31, 2004 and 2005
are  5.7%  and  5.4%  at  December  31,  2004  and  2005,   respectively.   Such
weighted-average  rates were determined using the projected benefit  obligations
at each date. At December 31, 2004 and 2005, the Company had no active employees
participating  in its defined  benefit  pension plans.  Such plans are closed to
additional  participants  and consequently  discount rate assumptions  regarding
future compensation levels are not applicable.

     The weighted-average  rate assumptions used in determining the net periodic
pension  cost for 2003,  2004 and 2005 are  presented  in the table  below.  The
weighted-average  discount  rate and the  weighted-average  increase  in  future
compensation  levels were determined using the projected benefit  obligations at
the beginning of each year, and the  weighted-average  long-term  return on plan
assets was  determined  using the fair value of plan assets at the  beginning of
each year.


              Rate                                                    December 31,
              ----                                  --------------------------------------------
                                                      2003              2004              2005
                                                      ----              ----              ----

                                                                                 
Discount rate                                         5.9%              5.8%              5.7%
                                                                        not               not
Increase in future compensation levels                2.6%           applicable        applicable
Long-term return on plan assets                       7.2%              9.7%              9.6%



     As of December  31,  2005,  the  accumulated  benefit  obligations  for all
defined  benefit  pension  plans  was  approximately  $55  million  (2004  - $52
million).  At December 31,  2005,  the  projected  benefit  obligations  for all
defined benefit pension plans was comprised of $47 million related to U.S. plans
and $8 million  related to  non-U.S.  plans  (2004 - $43 million and $9 million,
respectively).

     At December 31, 2005, the fair value of plan assets for all defined benefit
pension plans was comprised of $52 million  related to U.S. plans and $6 million
related to non-U.S. plans (2004 - $38 million and $6 million, respectively).

     Selected information related to the Company's defined benefit pension plans
that have accumulated benefit obligations in excess of fair value of plan assets
is  presented  below.  At  December  31,  2004,  17%  of the  projected  benefit
obligations of such plans relate to non-U.S. plans.



                                                                   December 31,
                                                            -------------------------
                                                             2004               2005
                                                             ----               ----
                                                                  (In thousands)

                                                                        
   Projected benefit obligation                           $ 52,424            $   -
   Accumulated benefit obligation                           50,694                -
   Fair value of plan assets:
     U.S. plans                                             38,201                -
     Non - U.S. plans                                        5,700                -


     At December 31, 2004 and 2005, all of the assets attributable to U.S. plans
were invested in The Combined Master  Retirement  Trust  ("CMRT"),  a collective
investment  trust  sponsored by Contran to permit the  collective  investment by
certain master trusts which fund certain  employee  benefits plans  sponsored by
Contran and certain of its affiliates.

     At  December  31,  2005,  the asset mix of the CMRT was 86% in U.S.  equity
securities,  3% in U.S.  fixed income  securities,  7% in  international  equity
securities and 4% in cash and other investments. At December 31, 2004, the asset
mix of the CMRT was 77% in U.S.  equity  securities,  14% in U.S.  fixed  income
securities,  7% in  international  equity  securities  and 2% in cash and  other
investments.

     The CMRT's  long-term  investment  objective is to provide a rate of return
exceeding a composite of broad market equity and fixed income indices (including
the S&P 500 and certain Russell indicies) utilizing both third-party  investment
managers as well as  investments  directed by Mr.  Harold  Simmons.  Mr.  Harold
Simmons is the sole trustee of the CMRT. The trustee of the CMRT, along with the
CMRT's investment committee,  of which Mr. Simmons is a member,  actively manage
the  investments  of the CMRT.  Such  parties  have in the past,  and may in the
future,  periodically  change the asset mix of the CMRT based upon,  among other
things,  advice they receive from third-party advisors and their expectations as
to what asset mix will generate the greatest overall return. For the years ended
December 31, 2003, 2004 and 2005, the assumed  long-term rate of return for plan
assets invested in the CMRT was 10%. In determining the  appropriateness of such
long-term rate of return assumption, the Company considered, among other things,
the historical rates of return for the CMRT, the current and projected asset mix
of the CMRT and the  investment  objectives of the CMRT's  managers.  During the
18-year  history of the CMRT from its  inception  in 1987  through  December 31,
2005, the average annual rate of return has been  approximately  14% (with a 36%
return for 2005).

     The Company  expects future  benefits paid from all defined benefit pension
plans are as follows:


                                                           Amount
                                                       --------------
 Years ending December 31,                             (In thousands)
- ---------------------------
                                                    
     2006                                                 $ 3,107
     2007                                                   3,089
     2008                                                   3,112
     2009                                                   3,124
     2010                                                   3,153
     2011 to 2015                                          16,988


     Defined   contribution   plans.  The  Company   maintains  various  defined
contribution pension plans with Company contributions based on matching or other
formulas.  Defined  contribution  plan expense related to continuing  operations
approximated  $2.5  million in 2003,  $2.0  million in 2004 and $2.3  million in
2005, primarily related to CompX.

     Postretirement  benefits  other than  pensions.  In addition  to  providing
pension benefits,  the Company  currently  provides certain health care and life
insurance benefits for eligible retired employees.  The majority of all retirees
are required to  contribute a portion of the cost of their  benefits and certain
current and future retirees are eligible for reduced health care benefits at age
65. The Company's policy is to fund medical claims as they are incurred,  net of
any contributions by the retiree.

     The components of the periodic OPEB cost and accumulated  OPEB  obligations
and the  rates  used in  determining  the  actuarial  present  value of  benefit
obligations    are   presented   in   the   tables   below.    Variances    from
actuarially-assumed  rates will result in  additional  increases or decreases in
accumulated OPEB obligations, net periodic OPEB cost and funding requirements in
future  periods.  At December 31, 2005,  the expected rate of increase in future
health care costs is 9% in 2006,  declining to 5.5% in 2009 and thereafter.  (In
2004 the  expected  rate of  increase  in  future  healthcare  costs 9% in 2005,
declining  to 5.5% in 2009 and  thereafter.)  If the health care cost trend rate
was increased  (decreased) by one percentage  point for each year,  OPEB expense
would have increased by  approximately  $50,000  (decreased by $50,000) in 2005,
and the actuarial  present value of accumulated OPEB obligations at December 31,
2005 would have increased by $800,000  (decreased by $700,000).  At December 31,
2005,   the  Company   currently   expects  to  contribute   the  equivalent  of
approximately  $1.6 million to all of its OPEB plans during 2006,  and aggregate
benefit payments to OPEB plan  participants are expected to be the equivalent of
approximately  $1.6 million in 2006, $1.5 million in each of 2007 and 2008, $1.4
million in each of 2009 and 2010 and $5.9 million during 2011 through 2015. Such
amounts are stated net of estimated Medicare Part D subsidy, discussed below, of
approximately $225,000 per year



                                                             Years ended December 31,
                                                            -------------------------
                                                             2004               2005
                                                             ----               ----
                                                                  (In thousands)

 Change in projected OPEB obligations:
                                                                      
   Obligations at beginning of the year                  $   33,429         $   15,903
   Service cost                                                 116               -
   Interest cost                                              1,386                844
   Plan amendments                                           (1,385)              -
   Actuarial gains                                           (2,759)              (592)
   Change in foreign currency exchange rates                    206               -
   Benefits paid                                             (3,500)            (2,154)
   Adjustment to deconsolidate Kronos                       (11,590)              -
                                                         ----------         ----------

   Obligations at end of the year                        $   15,903         $   14,001
                                                         ==========         ==========

 Change in plan assets:
   Employer contributions                                $    3,500         $    2,154
   Benefits paid                                             (3,500)            (2,154)
                                                         ----------         ----------

   Fair value of plan assets at end of the year          $     -            $     -
                                                         ==========         ==========

 Funded status at end of the year:
   Plan assets less than benefit obligations             $  (15,903)        $  (14,001)
   Unrecognized net actuarial losses                          3,284              2,692
   Unrecognized prior service credit                           (968)              (682)
                                                         ----------         ----------

                                                         $  (13,587)        $  (11,991)
                                                         ==========         ==========

 Accrued OPEB costs recognized in the balance sheet:
   Current                                               $    3,015         $    1,850
   Noncurrent                                                10,572             10,141
                                                         ----------         ----------

                                                         $   13,587         $   11,991
                                                         ==========         ==========




                                                        Years ended December 31,
                                                  ------------------------------------
                                                  2003             2004           2005
                                                  ----             ----           ----
                                                             (In thousands)

 Net periodic OPEB cost:
                                                                       
   Service cost                                 $    152        $    116        $   -
   Interest cost                                   2,063           1,386             844
   Amortization of prior service credit           (2,075)           (540)           (286)
   Recognized actuarial losses                       189             132            -
                                                --------        --------        --------

                                                $    329        $  1,094        $    558
                                                ========        ========        ========


     The  weighted  average  discount  rate used in  determining  the  actuarial
present  value of benefit  obligations  as of December 31, 2005 was 5.6% (2004 -
5.7%).  Such weighted  average rate was determined  using the projected  benefit
obligation  as of  such  dates.  The  impact  of  assumed  increases  in  future
compensation  levels does not have a material  effect on the  actuarial  present
value of the benefit  obligation as  substantially  all of such benefits  relate
solely to eligible retirees, for which compensation is not applicable.

     The weighted  average  discount rate used in  determining  the net periodic
OPEB cost for 2005 was 5.7% (2004 - 5.9%;  2003 - 6.5%).  Such weighted  average
rate was determined using the projected  benefit  obligation as of the beginning
of each year. The impact of assumed increases in future compensation levels does
not have a material effect on the net periodic OPEB cost as substantially all of
such benefits relate solely to eligible retirees,  for which compensation is not
applicable.  The impact of assumed  rate of return on plan  assets also does not
have a  material  effect on the net  periodic  OPEB  cost as there  were no plan
assets as of December 31, 2004 or 2005.

     As of December 31, 2005, the accumulated  benefit  obligations for all OPEB
plans was  approximately  $14.0 million (2004 - $15.9 million).  At December 31,
2005,  all of the  Company's  consolidated  accrued  OPEB  costs  related to the
Company's U.S. plan.

     The Medicare  Prescription Drug,  Improvement and Modernization Act of 2003
(the "Medicare 2003 Act") introduced a prescription  drug benefit under Medicare
(Medicare  Part D) as well as a federal  subsidy to sponsors  of retiree  health
care  benefit  plans  that  provide  a  benefit  that  is at  least  actuarially
equivalent  to Medicare  Part D. During the third  quarter of 2004,  the Company
determined that benefits provided by its plan are actuarially  equivalent to the
Medicare  Part D benefit and  therefore  the Company is eligible for the federal
subsidy provided for by the Medicare 2003 Act. The effect of such subsidy, which
is  accounted  for  prospectively  from  the  date  actuarial   equivalence  was
determined,  as  permitted  by and in  accordance  with FASB Staff  Position No.
106-2, did not have a material impact on the accumulated  postretirement benefit
obligation,  and will not have a material  impact on the net periodic  OPEB cost
going forward.

Note 17 - Related party transactions:

     The Company may be deemed to be controlled  by Harold C. Simmons.  See Note
1.  Corporations  that may be deemed to be controlled by or affiliated  with Mr.
Simmons sometimes engage in (a) intercorporate  transactions such as guarantees,
management and expense  sharing  arrangements,  shared fee  arrangements,  joint
ventures,  partnerships,  loans, options, advances of funds on open account, and
sales,  leases and  exchanges  of assets,  including  securities  issued by both
related  and  unrelated  parties  and  (b)  common  investment  and  acquisition
strategies,   business   combinations,    reorganizations,    recapitalizations,
securities  repurchases,  and  purchases and sales (and other  acquisitions  and
dispositions)  of  subsidiaries,   divisions  or  other  business  units,  which
transactions  have involved both related and unrelated parties and have included
transactions  which  resulted  in the  acquisition  by one  related  party  of a
publicly-held  minority equity  interest in another  related party.  The Company
continuously considers,  reviews and evaluates, and understands that Contran and
related entities consider, review and evaluate such transactions. Depending upon
the business,  tax and other  objectives then relevant,  it is possible that the
Company might be a party to one or more such transactions in the future.

     Receivables  from and payables to  affiliates  are  summarized in the table
below.


                                                                   December 31,
                                                            -------------------------
                                                             2004               2005
                                                             ----               ----
                                                                  (In thousands)

 Current receivables from affiliates:
                                                                         
   Income taxes refundable from Valhi                      $ 1,681             $ 3,146
   Kronos                                                     -                    145
                                                           -------             -------

                                                           $ 1,681             $ 3,291
                                                           =======             =======

 Noncurrent receivable from affiliate -
   loan to Contran family trust                            $10,000             $  -
                                                           =======             =======

 Current payables to affiliates:
   Income taxes payable to Valhi                           $    86             $   771
   Kronos                                                       16                -
   Tremont                                                     289                 211
                                                           -------             -------

                                                           $   391             $   982
                                                           =======             =======


     Purchases of TiO2 from LPC were $101.3 million in 2003 and $51.0 million in
the first half of 2004. See Note 7.

     From time to time,  loans and  advances  are made  between  the Company and
various  related  parties,  pursuant to term and demand  notes.  These loans and
advances are entered into  principally  for cash management  purposes.  When the
Company loans funds to related  parties,  the lender is generally able to earn a
higher  rate of return on the loan than the lender  would earn if the funds were
invested in other  instruments.  While  certain of such loans may be of a lesser
credit  quality  than cash  equivalent  instruments  otherwise  available to the
Company,  the Company  believes that it has evaluated the credit risks involved,
and that those risks are reasonable and reflected in the terms of the applicable
loans. When the Company borrows from related parties,  the borrower is generally
able to pay a lower rate of interest than the borrower  would pay if it borrowed
from other parties.

     In 2001,  EMS, NL's  majority-owned  environmental  management  subsidiary,
extended a $25 million  revolving  credit  facility to one of the family  trusts
discussed  in Note 1 ($10 million and nil  outstanding  at December 31, 2004 and
2005, respectively).  The loan bore interest at prime, was due on demand with 60
days notice and was collateralized by certain shares of Contran's Class A common
stock and Class E  cumulative  preferred  stock held by the trust.  The terms of
this loan were approved by special  committees of both NL's and EMS'  respective
board of directors composed of independent  directors.  During 2005, all amounts
due and outstanding on this credit facility were repaid and the revolving credit
facility was cancelled.

     Interest  income on all loans to affiliates was $2.2 million in 2003,  $6.9
million in 2004 and nil in 2005, including $1.4 million in 2003 and $1.5 million
in 2004 in interest income from CompX's discontinued operation. Also included in
2004  is  $4.7  million  in  interest  income  related  to a $200  million  note
receivable from Kronos that was distributed to NL in December 2003. A portion of
such note was used to acquire CompX in September 2004. See Note 1. The remainder
of the note was repaid in 2004. Interest income earned prior to July 1, 2004 was
eliminated upon consolidation.

     Under the terms of  various  intercorporate  services  agreements  ("ISAs")
entered into between the Company and various related parties, including Contran,
employees  of  one  company  will  provide  certain  management,  tax  planning,
financial and administrative  services to the other company on a fee basis. Such
charges are based upon  estimates  of the time  devoted by the  employees of the
provider of the services to the affairs of the recipient,  and the  compensation
of such  persons.  Because  of the large  number of  companies  affiliated  with
Contran,  the Company  believes it benefits  from cost savings and  economies of
scale gained by not having  certain  management,  financial  and  administrative
staffs duplicated at each entity,  thus allowing certain  individuals to provide
services to multiple  companies but only be compensated  by one entity.  The net
ISA fees charged to the Company  (including  amounts  attributable to Kronos for
all  periods)  included  in  selling  general  and  administrative  expense  and
corporate expense  aggregated  approximately $4.1 million in 2003, $10.4 million
in 2004 and $12.6 million in 2005. The increase in the aggregate ISA fee charged
to the Company in 2004 is due  primarily to  approximately  30 staff  positions,
previously compensated by NL and Kronos, who in 2004 commenced being compensated
by Contran.  NL also had an ISA with TIMET whereby NL provided  certain services
to TIMET for approximately $14,000 in 2003.

     Tall Pines Insurance Company and EWI RE, Inc. provide for or broker certain
insurance  policies for Contran and certain of its  subsidiaries and affiliates,
including the Company.  Tall Pines is wholly-owned by a subsidiary of Valhi, and
EWI is a  wholly-owned  subsidiary of NL.  Consistent  with  insurance  industry
practices, Tall Pines and EWI receive commissions from insurance and reinsurance
underwriters  and/or  assess fees for the policies  that they provide or broker.
The aggregate premiums paid by the Company to Tall Pines (including amounts paid
to Valmont Insurance  Company,  another subsidiary of Valhi that was merged into
Tall Pines in 2004) were $8.2  million in 2003,  $4.3 million in 2004 and nil in
2005. These amounts principally  included payments for insurance and reinsurance
premiums paid to third parties, but also included commissions paid to Tall Pines
and EWI. Tall Pines purchases  reinsurance for substantially all of the risks it
underwrites.  The  aggregate  premiums  paid by  affiliates  of the  Company for
insurance brokered by EWI were approximately $15 million in 2004 and $10 million
in 2005. The Company  expects that these  relationships  with Tall Pines and EWI
will continue in 2006.

     Contran and  certain of its  subsidiaries  and  affiliates,  including  the
Company, purchase certain of their insurance policies as a group, with the costs
of  the  jointly-owned   policies  being  apportioned  among  the  participating
companies.  With  respect to  certain  of such  policies,  it is  possible  that
unusually  large losses  incurred by one or more insureds  during a given policy
period could leave the other  participating  companies without adequate coverage
under that policy for the balance of the policy period. As a result, Contran and
certain of its subsidiaries and affiliates,  including the Company, have entered
into a loss sharing  agreement under which any uninsured loss is shared by those
entities  who have  submitted  claims  under the  relevant  policy.  The Company
believes  the  benefits in the form of reduced  premiums  and  broader  coverage
associated  with  the  group  coverage  for  such  policies  justifies  the risk
associated with the potential for any uninsured loss.

     Capital  transactions  with  affiliates  during  2003,  as reflected on the
accompanying Consolidated Statements of Cash Flows, relates principally to CompX
dividends paid to Valhi and Valcor.



Note 18 - Other income;  noncompete  agreement income and litigation  settlement
gains:

     Other  income  for the years  ended  December  31,  2003,  2004 and 2005 is
summarized below:




                                                        Years ended December 31,
                                                  ------------------------------------
                                                  2003             2004           2005
                                                  ----             ----           ----
                                                             (In thousands)

                                                                       
   Contract dispute settlement                  $   -           $  6,289        $   -
   Other                                             436             664             462
                                                --------        --------        --------

                                                $    436        $  6,953        $    462
                                                ========        ========        ========


     The  contract  dispute  settlement  relates  to Kronos'  settlement  with a
customer.  As part of the  settlement,  the customer  agreed to make payments to
Kronos through 2007 aggregating  $7.3 million.  The $6.3 million gain recognized
in 2004  represents  the present value of the future  payments to be paid by the
customer to Kronos.  Of such $7.3  million,  $1.5  million was paid to Kronos in
2004,  $1.75  million was paid in 2005,  $1.75  million is due in 2006 and $2.25
million is due in 2007.

     NL's $20 million of proceeds from the disposal of its  specialty  chemicals
business  unit in January  1998 related to its  agreement  not to compete in the
rheological products business was recognized as a component of general corporate
income (expense) ratably over the five-year  non-compete period ended in January
2003 ($333,000 recognized in 2003).

     Insurance  recoveries of $823,000 in 2003, $552,000 in 2004 and $804,000 in
2005 relate to NL's settlements  with certain of its former insurance  carriers.
These  settlements,  as well as similar  prior  settlements  NL reached prior to
2003,  resolved court proceedings in which NL had sought  reimbursement from the
carriers  for legal  defense  costs and  indemnity  coverage  for certain of its
environmental remediation expenditures. No further material settlements relating
to  litigation  concerning  environmental  remediation  coverages  are expected.
Insurance  recoveries in 2005 also include $2.2 million related to settlement of
excess insurance claims that were paid to NL. See Note 19.

Note 19 - Commitments and contingencies:

     Lead pigment litigation. NL's former operations included the manufacture of
lead  pigments  for  use  in  paint  and  lead-based  paint.  NL,  other  former
manufacturers  of lead pigments for use in paint and lead-based paint (together,
the  "former  pigment  manufacturers"),  and  the  Lead  Industries  Association
("LIA"),  which  discontinued  business  operations in 2002,  have been named as
defendants in various legal  proceedings  seeking  damages for personal  injury,
property damage and  governmental  expenditures  allegedly  caused by the use of
lead-based  paints.  Certain of these actions have been filed by or on behalf of
states,  large  U.S.  cities or their  public  housing  authorities  and  school
districts,  and  certain  others  have been  asserted  as class  actions.  These
lawsuits seek recovery under a variety of theories, including public and private
nuisance, negligent product design, negligent failure to warn, strict liability,
breach  of  warranty,   conspiracy/concert   of  action,  aiding  and  abetting,
enterprise liability,  market share or risk contribution liability,  intentional
tort,  fraud and  misrepresentation,  violations  of state  consumer  protection
statutes, supplier negligence and similar claims.

     The plaintiffs in these actions  generally seek to impose on the defendants
responsibility for lead paint abatement and health concerns  associated with the
use of lead-based  paints,  including damages for personal injury,  contribution
and/or  indemnification  for medical expenses,  medical monitoring  expenses and
costs for  educational  programs.  A number of cases are  inactive  or have been
dismissed or  withdrawn.  Most of the remaining  cases are in various  pre-trial
stages.  Some are on appeal  following  dismissal or summary judgment rulings in
favor of either the defendants or plaintiffs.  In addition,  various other cases
are  pending  (in  which NL is not a  defendant)  seeking  recovery  for  injury
allegedly  caused by lead  pigment and  lead-based  paint.  Although NL is not a
defendant in these cases, the outcome of these cases may have an impact on cases
that might be filed against NL in the future.

     NL believes  these actions are without  merit,  intends to continue to deny
all  allegations  of wrongdoing  and liability and to defend against all actions
vigorously.  NL has never settled any of these cases, nor have any final adverse
judgments  been  entered  against NL. NL has not accrued any amounts for pending
lead pigment and lead-based paint litigation. Liability that may result, if any,
cannot currently be reasonably estimated. There can be no assurance that NL will
not incur liability in the future in respect of this pending  litigation in view
of the inherent  uncertainties involved in court and jury rulings in pending and
possible  future cases.  If any such future  liability  were to be incurred,  it
could have a material  adverse  effect on the Company's  consolidated  financial
position, results of operations and liquidity.

     In one of  these  lead  pigment  cases  (State  of  Rhode  Island  v.  Lead
Industries Association), a trial before a Rhode Island state court jury began in
September  2002 on the question of whether lead pigment in paint on Rhode Island
buildings is a public  nuisance.  In October  2002,  the trial judge  declared a
mistrial  in the  case  when  the jury was  unable  to  reach a  verdict  on the
question,  with the jury reportedly  deadlocked 4-2 in the defendants' favor. In
November  2005,  the State of Rhode  Island  began a retrial  of the case on the
State's claims of public nuisance,  indemnity and unjust  enrichment  against NL
and three other defendants.  Following the state's presentation of its case, the
trial court dismissed the state's claims of indemnity and unjust enrichment. The
public  nuisance claim was sent to the jury in February 2006, and the jury found
that NL and two other defendants substantially  contributed to the creation of a
public  nuisance  as a result of the  collective  presence  of lead  pigments in
paints and coatings on buildings  in Rhode  Island.  The jury also found that NL
and the two other  defendants  should be ordered  to abate the public  nuisance.
Following  the jury  verdict,  the trial court  dismissed  the state's claim for
punitive  damages.  The scope of the abatement  remedy will be determined by the
judge.  The extent,  nature and cost of such remedy is not  currently  known and
will be determined only following additional proceedings. Various motions remain
pending before the trial court,  including NL's motion to dismiss. NL intends to
appeal any adverse judgment which the trial court may enter against NL.

     The Rhode  Island  case is  unique  in that this is the first  time that an
adverse  verdict in the lead pigment  litigation has been entered against NL. NL
does not believe it is currently  possible to determine  the nature or extent of
any potential liability resulting from the verdict. In addition,  liability that
might  result to NL, if any,  with  respect to this and the other  lead  pigment
litigation can not currently be reasonably estimated. However, as with any legal
proceeding, there is no assurance that any of these appeals would be successful,
and it is reasonably possible, based on the outcome of the appeals process, that
NL would in the near term  conclude  that it was probable NL had  incurred  some
liability in this Rhode Island matter that would result in the  recognition of a
loss contingency accrual. Such potential liability could have a material adverse
impact  on net  income  for the  interim  or annual  period  during  which  such
liability  is  recognized,  and a  material  adverse  impact  on NL's  financial
condition and liquidity.  NL believes it is reasonably  possible that additional
legal proceedings in this matter could be scheduled for trial in 2006 and beyond
in other jurisdictions,  including cases in which NL is currently a defendant or
in cases not yet filed against NL, the  resolution of which could also result in
recognition  of a loss  contingency  accrual that could have a material  adverse
impact  on net  income  for the  interim  or annual  period  during  which  such
liability  is  recognized,  and a  material  adverse  impact  on NL's  financial
condition and liquidity.  An estimate of the potential impact on NL's results of
operations,  financial  condition or liquidity  related to these matters can not
currently be reasonably estimated.

     Environmental matters and litigation. The Company's operations are governed
by  various  environmental  laws  and  regulations.  Certain  of  the  Company's
businesses  are and have been  engaged in the  handling,  manufacture  or use of
substances  or compounds  that may be considered  toxic or hazardous  within the
meaning of applicable  environmental  laws. As with other  companies  engaged in
similar  businesses,  certain  past and current  operations  and products of the
Company have the potential to cause  environmental or other damage.  The Company
has implemented and continues to implement  various  policies and programs in an
effort to minimize these risks. The Company's  policy is to maintain  compliance
with applicable  environmental  laws and regulations at all of its plants and to
strive to improve environmental performance.  From time to time, the Company may
be subject to  environmental  regulatory  enforcement  under  U.S.  and  foreign
statutes, resolution of which typically involves the establishment of compliance
programs. It is possible that future developments, such as stricter requirements
of  environmental  laws and  enforcement  policies  thereunder,  could adversely
affect the Company's production, handling, use, storage, transportation, sale or
disposal  of such  substances.  The  Company  believes  all of its plants are in
substantial compliance with applicable environmental laws.

     Certain  properties and facilities used in the Company's former businesses,
including  divested  primary  and  secondary  lead  smelters  and former  mining
locations of NL, are the subject of civil litigation, administrative proceedings
or  investigations   arising  under  federal  and  state   environmental   laws.
Additionally,  in connection with past disposal practices,  the Company has been
named as a defendant, potentially responsible party ("PRP") or both, pursuant to
the  Comprehensive  Environmental  Response,  Compensation and Liability Act, as
amended by the Superfund  Amendments and  Reauthorization  Act  ("CERCLA"),  and
similar state laws in various  governmental and private actions  associated with
waste disposal sites, mining locations,  and facilities  currently or previously
owned,  operated  or  used  by  the  Company  or  its  subsidiaries,   or  their
predecessors,  certain  of  which  are  on the  U.S.  EPA's  Superfund  National
Priorities List or similar state lists.  These  proceedings  seek cleanup costs,
damages for  personal  injury or property  damage  and/or  damages for injury to
natural resources.  Certain of these proceedings  involve claims for substantial
amounts.  Although  the  Company may be jointly  and  severally  liable for such
costs,  in most cases it is only one of a number of PRPs who may also be jointly
and severally liable.

     Environmental obligations are difficult to assess and estimate for numerous
reasons including the complexity and differing  interpretations  of governmental
regulations,  the number of PRPs and the PRPs'  ability or  willingness  to fund
such  allocation of costs,  their financial  capabilities  and the allocation of
costs among PRPs,  the  solvency of other  PRPs,  the  multiplicity  of possible
solutions,  and the years of  investigatory,  remedial and  monitoring  activity
required.   In  addition,   the  imposition  of  more  stringent   standards  or
requirements  under  environmental  laws or  regulations,  new  developments  or
changes  respecting  site cleanup  costs or allocation of such costs among PRPs,
solvency of other PRPs,  the results of future  testing and analysis  undertaken
with respect to certain sites or a determination that the Company is potentially
responsible for the release of hazardous substances at other sites, could result
in  expenditures in excess of amounts  currently  estimated by the Company to be
required for such matters. In addition,  with respect to other PRPs and the fact
that the Company may be jointly and severally  liable for the total  remediation
cost at certain  sites,  the Company  could  ultimately be liable for amounts in
excess of its accruals due to, among other things,  reallocation  of costs among
PRPs or the  insolvency  of one or more  PRPs.  No  assurance  can be given that
actual costs will not exceed  accrued  amounts or the upper end of the range for
sites for which  estimates  have been made,  and no assurance  can be given that
costs  will not be  incurred  with  respect  to  sites  as to which no  estimate
presently  can be made.  Further,  there  can be no  assurance  that  additional
environmental matters will not arise in the future. If any such future liability
were to be incurred,  it could have a material  adverse  effect on the Company's
consolidated financial statements, results of operations and liquidity.

     The  Company  records  liabilities  related  to  environmental  remediation
obligations  when  estimated  future  expenditures  are probable and  reasonably
estimable.  Such accruals are adjusted as further  information becomes available
or  circumstances  change.  Estimated  future  expenditures  are  generally  not
discounted to their present value.  Recoveries of  remediation  costs from other
parties, if any, are recognized as assets when their receipt is deemed probable.
At December 31, 2005, no receivables for such recoveries have been recognized.

     The exact time frame over which the Company makes  payments with respect to
its accrued  environmental  costs is unknown and is dependent upon,  among other
things,  the timing of the actual  remediation  process which in part depends on
factors  outside the control of the  Company.  At each balance  sheet date,  the
Company makes an estimate of the amount of its accrued environmental costs which
will be paid out over the subsequent 12 months,  and the Company classifies such
amount as a current liability.  The remainder of the accrued environmental costs
is classified as a noncurrent liability.

     A summary of the  activity in the  Company's  accrued  environmental  costs
during the past three years is presented in the table below.  The amount charged
to expense, as shown in the table below, is included in corporate expense on the
Company's  consolidated  statement of operations.  The amount shown in the table
below for payments against the Company's accrued environmental costs is net of a
$1.5 million recovery of remediation  costs  previously  expended by NL that was
paid to NL by other PRPs in the third  quarter of 2004  pursuant to an agreement
entered into by NL and the other PRPs.



                                                        Years ended December 31,
                                                  ------------------------------------
                                                  2003             2004           2005
                                                  ----             ----           ----
                                                             (In thousands)

                                                                       
 Balance at the beginning of the year           $ 91,506        $ 77,481        $ 67,817
 Additions charged to expense, net                26,211           1,602           2,293
 Payments                                        (40,236)        (11,266)        (15,163)
                                                --------        --------        --------

 Balance at the end of the year                 $ 77,481        $ 67,817        $ 54,947
                                                ========        ========        ========

 Amounts recognized in the balance sheet:
   Current liability                                            $ 16,570        $ 13,302
   Noncurrent liability                                           51,247          41,645
                                                                --------        --------

                                                                $ 67,817        $ 54,947
                                                                ========        ========


     On a quarterly  basis,  the Company  evaluates the  potential  range of its
liability  at sites  where it has been  named as a PRP or  defendant,  including
sites for which EMS has contractually  assumed NL's obligation.  At December 31,
2004 and 2005, the Company had accrued $68 million and $55 million, respectively
for those  environmental  matters  which  are  reasonably  estimable.  It is not
possible to estimate the range of costs for certain sites.  The upper end of the
range of reasonably possible costs to the Company for sites which it is possible
to estimate costs is approximately $80 million.  The Company's estimates of such
liabilities have not been discounted to present value.

     At  December  31,  2005,  there  are  approximately  20 sites for which the
Company  is  currently  unable to  estimate a range of costs.  For these  sites,
generally the investigation is in the early stages,  and it is either unknown as
to whether or not the Company  actually had any association with the site, or if
the Company had an association with the site, the nature of its  responsibility,
if any, for the contamination at the site and the extent of  contamination.  The
timing on when  information  would become  available to the Company to allow the
Company to estimate a range of loss is unknown and  dependent on events  outside
the control of the Company,  such as when the party alleging  liability provides
information to the Company.  On certain of these sites that had previously  been
inactive,  NL has received general and special notices of liability from the EPA
alleging  that NL, along with other PRPs, is liable for past and future costs of
remediating  environmental  contamination  allegedly caused by former operations
conducted  at such sites.  These  notifications  may assert that NL,  along with
other PRPs,  is liable for past  clean-up  costs that could be material to NL if
liability for such amounts ultimately were determined against NL.

     At December  31,  2004,  the Company  had $19  million in  restricted  cash
equivalents and debt  securities  held by special purpose trusts,  the assets of
which  could  only  be  used  to  pay  for  certain  of  the  Company's   future
environmental remediation and other environmental expenditures. During 2005, all
of such  restricted  balances  had  been  so  utilized.  Use of such  restricted
balances does not affect the Company's consolidated net cash flows.

     Insurance  coverage claims. In October 2005, NL was served with a complaint
in OneBeacon American Insurance Company v. NL Industries, Inc., et. Al. (Supreme
Court of the State of New York,  County of New York, Index No.  603429-05).  The
plaintiff,  a former  insurance  carrier,  seeks a  declaratory  judgment of its
obligations  to NL under  insurance  policies  issued  to NL by the  plaintiff's
predecessor with respect to certain lead pigment lawsuits.  NL filed a motion to
dismiss the New York action.  NL filed an action  against  OneBeacon and certain
other former  insurance  companies,  captioned NL Industries,  Inc. v. OneBeacon
America  Insurance  Company,  et. al. (District Court for Dallas County,  Texas,
Case No.  05-11347)  asserting that OneBeacon has breached its obligations to NL
under such insurance policies and seeking a declaratory  judgment of OneBeacon's
obligations to NL under such policies. Certain of the former insurance companies
have filed a petition to remove the Texas action to federal court.

     NL has reached an agreement with a former  insurance  carrier in which such
carrier  would  reimburse  NL for a portion of its past and future lead  pigment
litigation  defense costs,  although the amount that NL will ultimately  recover
from such carrier with respect to such defense  costs  incurred by NL is not yet
determinable. In addition, during 2005, NL recognized $2.2 million of recoveries
from certain  insolvent  former  insurance  carriers  relating to  settlement of
excess insurance claims that were paid to NL. See Note 18. While NL continues to
seek additional insurance recoveries,  there can be no assurance that NL will be
successful in obtaining reimbursement for either defense costs or indemnity. Any
such additional  insurance  recoveries would be recognized when their receipt is
deemed probable and the amount is determinable.

     The issue of whether  insurance  coverage for defense costs of indemnity or
both will be found to exist  for NL's lead  pigment  litigation  depends  upon a
variety of factors,  and there can be no assurance that such insurance  coverage
will be available.  NL has not considered any potential insurance recoveries for
lead  pigment  or  environmental   litigation  matters  in  determining  related
accruals.

     NL has settled insurance  coverage claims concerning  environmental  claims
with certain of its principal  former  carriers.  A portion of the proceeds from
these  settlements were placed into special purpose trusts,  as discussed above.
No further material settlements  relating to environmental  remediation coverage
are expected.

     Other litigation. NL has been named as a defendant in various lawsuits in a
variety of jurisdictions, alleging personal injuries as a result of occupational
exposure primarily to products  manufactured by formerly-owned  operations of NL
containing asbestos,  silica and/or mixed dust. Approximately 500 of these types
of  cases,  involving  a total of  approximately  12,000  plaintiffs  and  their
spouses,  remain  pending.  NL has not accrued  any amounts for this  litigation
because  liability  that  might  result  to NL,  if  any,  cannot  currently  be
reasonably  estimated.  To date,  NL has not been  adjudicated  liable in any of
these matters.  Based on information available to NL, including facts concerning
its  historical  operations,  the rate of new claims,  the number of claims from
which NL has been  dismissed  and NL's prior  experience in the defense of these
matters,  NL believes  that the range of reasonably  possible  outcomes of these
matters  will be  consistent  with NL's  historical  costs with respect to these
matters (which are not material), and no reasonably possible outcome is expected
to  involve  amounts  that  are  material  to NL.  NL has and will  continue  to
vigorously seek dismissal from each claim and/or a finding of no liability by NL
in each case. In addition,  from time to time, NL has received notices regarding
asbestos or silica claims  purporting to be brought against former  subsidiaries
of NL,  including  notices  provided to insurers  with which NL has entered into
settlements  extinguishing  certain insurance policies.  These insurers may seek
indemnification from NL.

     In  addition  to the  litigation  described  above,  the  Company  and  its
affiliates  are also  involved  in  various  other  environmental,  contractual,
product  liability,  patent (or  intellectual  property),  employment  and other
claims and disputes incidental to its present and former businesses.  In certain
cases,  the Company has insurance  coverage for such items;  however the Company
does  not  currently  expect   additional   material   insurance   coverage  for
environmental claims.

     The  Company  currently  believes  that the  disposition  of all claims and
disputes,  individually or in the aggregate,  should not have a material adverse
effect  on  its  consolidated  financial  position,  results  of  operations  or
liquidity beyond the accruals already provided for.

     Concentrations  of credit risk.  Sales of TiO2 accounted for  substantially
all of Kronos' net sales from  continuing  operations  during each of 2003, 2004
and 2005.  TiO2 is generally sold to the paint,  plastics and paper  industries.
Such markets are generally considered "quality-of-life" markets whose demand for
TiO2 is influenced by the relative economic well-being of the various geographic
regions.  TiO2 is  sold to over  4,000  customers,  with  the top ten  customers
accounting for approximately one-fourth of Kronos' net sales in each of the last
three  years.  By volume,  approximately  one-half of Kronos' TiO2 sales were to
Europe in each of the past  three  years with  about 38%  attributable  to North
America.

     Component  products  are  sold  primarily  in  North  America  to  original
equipment  manufacturers  in North America and Europe.  In 2005, the ten largest
customers  accounted for approximately  43% of component  products sales (2004 -
43%; 2003 - 44%).

     CompX does not believe it is  dependent  upon one or a few  customers,  the
loss of which would have a material  adverse effect on its operations.  In 2005,
the ten largest  customers  accounted for about 43% of component  products sales
(2004 - 43%; 2003 - 44%). In 2004 and 2005,  one customer  accounted for 11% and
10%, respectively,  of CompX's sales. No single customer accounted for more than
10% of CompX's sales in 2003.

     At December 31, 2005,  consolidated  cash, cash  equivalents and restricted
cash includes $50.0 million invested in U.S. Treasury securities purchased under
short-term agreements to resell (2004 - $82.8 million),  all of which is held in
trust for the Company by a single U.S. bank.

     Other.  Royalty expense was $450,000 in 2003,  $222,000 in 2004 and $66,000
in 2005. Royalties relate principally to certain products  manufactured by CompX
in Canada and sold in the United  States under the terms of  third-party  patent
license  agreements,  one of which expired in 2003 and the  remaining  agreement
expires in 2021.

     Rent expense,  principally  for CompX equipment in 2005 and principally for
Kronos' operating  facilities and equipment during 2003 and the first six months
of 2004, was  approximately $13 million in 2003, $6 million in 2004 and $800,000
in 2005.  At December 31, 2005,  future  minimum  rentals  under  noncancellable
operating leases are approximately  $540,000 in 2006,  $260,000 in 2007, $70,000
in 2008, $30,000 in 2009 and $10,000 in 2010.

     Income taxes.  The Company and Valhi have agreed to a policy  providing for
the allocation of tax liabilities and tax payments as described in Note 1. Under
applicable  law, the  Company,  as well as every other member of the Contran Tax
Group,  are each jointly and severally  liable for the aggregate  federal income
tax  liability  of Contran and the other  companies  included in the Contran Tax
Group for all periods in which the Company is included in the Contran Tax Group.
Valhi has agreed, however, to indemnify the Company for any liability for income
taxes of the  Contran  Tax  Group  in  excess  of the  Company's  tax  liability
previously computed and paid by NL in accordance with the tax allocation policy.
In this  regard,  in the event all or a portion of the $230  million  income tax
liability  related to the shares of Kronos  transferred  or distributed by NL to
Valhi and Tremont  becomes  payable by Contran to the  applicable  tax authority
(See Note 2), NL and  every  other  member  of the  Contran  Tax Group  would be
jointly and  severally  liable for such income tax in the event  Contran did not
pay such tax to the  applicable  tax  authority.  However,  in this  event,  the
Company  would also have the benefit of Valhi's  indemnification,  as  described
above.

Note 20 - Financial instruments:

     Summarized below is the estimated fair value and related net carrying value
of the Company's financial instruments.



                                                             December 31,                December 31,
                                                                 2004                        2005
                                                      ---------------------------  -------------------------
                                                        Carrying        Fair         Carrying       Fair
                                                         Amount         Value          Amount       Value
                                                      ------------   -----------   -------------  ----------
Cash, cash equivalents, current and noncurrent
   restricted cash equivalents and current and
                                                                                       
   noncurrent restricted marketable debt securities     $ 120.3       $  120.3       $   90.5      $   90.5

Marketable equity securities - classified as
   available-for-sale                                   $  75.8       $   75.8       $   87.1      $   87.1

Minority interest in CompX common stock                 $  49.2       $   79.4       $   45.6      $   74.1

Common stockholders' equity                             $ 233.6       $1,070.5       $  219.7      $  684.2


     Fair  value  of the  Company's  marketable  equity  securities,  restricted
marketable debt securities and Notes, and the fair value of the Company's common
stockholder's  equity and minority  interest in Kronos and CompX, are based upon
quoted market prices at each balance sheet date.

     Certain of the Company's  sales  generated by its non-U.S.  operations  are
denominated in U.S.  dollars.  The Company  periodically  uses currency  forward
contracts  to  manage a very  nominal  portion  of  foreign  exchange  rate risk
associated  with  receivables  denominated in a currency other than the holder's
functional  currency or similar exchange rate risk associated with future sales.
The Company  has not entered  into these  contracts  for trading or  speculative
purposes in the past, nor does the Company  currently  anticipate  entering into
such  contracts for trading or speculative  purposes in the future.  Derivatives
used to hedge  forecasted  transactions  and specific cash flows associated with
foreign currency  denominated  financial  assets and liabilities  which meet the
criteria for hedge accounting are designated as cash flow hedges.  Consequently,
the  effective  portion  of gains  and  losses is  deferred  as a  component  of
accumulated other comprehensive income and is recognized in earnings at the time
the hedged item affects  earnings.  Contracts  that do not meet the criteria for
hedge  accounting  are  marked-to-market  at each  balance  sheet  date with any
resulting  gain or loss  recognized in income  currently as part of net currency
transactions.  To manage such exchange  rate risk,  at December 31, 2005,  CompX
held a series of contracts to exchange an aggregate of U.S.  $6.5 million for an
equivalent amount of Canadian dollars at an exchange rate of Cdn. $1.19 per U.S.
dollar.  Such  contracts  mature through March 2006. The exchange rate was $1.17
per U.S.  dollar at December 31, 2005. At December 31, 2004 CompX held contracts
maturing through March 2005 to exchange an aggregate of U.S. $7.2 million for an
equivalent amount of Canadian dollars at an exchange rates of Cdn. $1.19 to Cdn.
$1.23 per U.S.  dollar.  At December 31, 2004, the actual exchange rate was Cdn.
$1.21  per U.S.  dollar.  The  estimated  fair  value of such  contracts  is not
material at December 31, 2004 and 2005.

     The  Company  periodically  uses  interest  rate  swaps and other  types of
contracts  to manage  interest  rate risk with  respect to  financial  assets or
liabilities.  The Company has not entered  into these  contracts  for trading or
speculative  purposes  in the past,  nor does the Company  currently  anticipate
entering into such contracts for trading or speculative  purposes in the future.
The Company was not a party to any such contract during 2003, 2004 or 2005.



Note 21 -      Quarterly results of operations (unaudited):


                                                                            Quarter ended
                                                    ----------------------------------------------------------
                                                     March 31         June 30        Sept. 30         Dec. 31
                                                    ---------        ---------      ---------        ---------
                                                                 (In millions, except per share data)

 Year ended December 31, 2004
                                                                                           
   Net sales                                        $ 306.8          $ 342.0         $ 46.3            $ 46.6
   Gross margin                                     $  69.4          $  79.2         $ 10.3            $ 10.2

   Income from continuing operations                $   5.5          $ 146.4         $  6.8            $   .6
   Discontinued operations                               -                .2             .2               3.1
                                                    -------          -------         ------            ------

   Net income                                       $   5.5          $ 146.6         $  7.0            $  3.7
                                                    =======          =======         ======            ======

     Diluted earnings per common share
                                                    $   .11          $  3.03         $  .14            $  .07

 Year ended December 31, 2005
   Net sales                                        $  46.8          $  45.7         $ 47.1            $ 46.8
   Gross margin                                     $  10.3          $  10.5         $ 11.0            $ 12.0

   Income from continuing operations                $  14.8          $   9.9         $  2.8            $  5.7
   Discontinued operations                              (.3)              -              -                 -
                                                    -------          -------         ------            ------

   Net income                                       $  14.5          $   9.9         $  2.8            $  5.7
                                                    =======          =======         ======            ======

     Diluted earnings per common share
                                                    $   .30          $   .20         $  .06            $  .12


     The sum of the  quarterly  per share  amounts  may not equal the annual per
share amounts due to relative  changes in the weighted  average number of shares
used in the per share computations.

Note 22 - Accounting principles newly adopted in 2003 and 2004:

     Asset retirement obligations. The Company adopted SFAS No. 143, "Accounting
for Asset  Retirement  Obligations," on January 1, 2003. Under SFAS No. 143, the
fair value of a liability for an asset retirement  obligation  covered under the
scope of SFAS No.  143 is  recognized  in the period in which the  liability  is
incurred,  with an  offsetting  increase in the  carrying  amount of the related
long-lived  asset.  Over time,  the  liability  would be  accreted to its future
value,  and the  capitalized  cost is  depreciated  over the useful  life of the
related asset.  Upon  settlement of the liability,  an entity either settles the
obligation for its recorded amount or incurs a gain or loss upon settlement.

     Under the transition provisions of SFAS No. 143, at the date of adoption on
January 1, 2003 the Company  recognized (i) an asset retirement cost capitalized
as an increase to the carrying value of its property, plant and equipment,  (ii)
accumulated  depreciation on such capitalized cost and (iii) a liability for the
asset retirement  obligation.  Amounts resulting from the initial application of
SFAS No. 143 are measured using information,  assumptions and interest rates all
as of January 1, 2003.  The amount  recognized as the asset  retirement  cost is
measured as of the date the asset retirement obligation was incurred. Cumulative
accretion on the asset retirement  obligation,  and accumulated  depreciation on
the asset  retirement  cost, is recognized for the time period from the date the
asset  retirement  cost  and  liability  would  have  been  recognized  had  the
provisions  of SFAS  No.  143 been in  effect  at the  date  the  liability  was
incurred,  through January 1, 2003. The difference,  if any, between the amounts
to be recognized as described above and any associated amounts recognized in the
Company's  balance  sheet as of December 31, 2002 is  recognized as a cumulative
effect of a change  in  accounting  principle  as of the date of  adoption.  The
effect of  adopting  SFAS No.  143 as of January  1, 2003 was not  material,  as
summarized  in  the  table  below,  and  is  not  separately  recognized  in the
accompanying Statement of Operations.


                                                                             Amount
                                                                           ---------
                                                                         (in millions)

Increase in carrying value of net property, plant and equipment:
                                                                          
  Cost                                                                       $ .4
  Accumulated depreciation                                                    (.1)
Decrease in carrying value of previously-accrued closure and
 post-closure activities                                                       .3
Asset retirement obligation recognized                                        (.6)
                                                                             ----

  Net impact                                                                 $ -
                                                                             ====


     The increase in the asset  retirement  obligations  in 2004,  approximately
$200,000  during 2004,  is due to accretion  expense and the effects of currency
translation.  Accretion  expense,  which is reported  as a component  of cost of
sales in the accompanying  statement of income,  was less than $100,000 for each
of the years ended December 31, 2003 and 2004. At December 31, 2004, the Company
no longer  consolidates the financial position of Kronos and therefore no longer
reports any asset retirement obligations.

     Costs associated with exit or disposal activities. The Company adopted SFAS
No. 146, "Accounting for Costs Associated with Exit or Disposal  Activities," on
January 1, 2003 for exit or disposal activities initiated on or after that date.
Under SFAS No. 146, costs associated with exit activities,  as defined, that are
covered by the scope of SFAS No. 146 will be recognized  and measured  initially
at fair value, generally in the period in which the liability is incurred. Costs
covered by the scope of SFAS No. 146 include  termination  benefits  provided to
employees,  costs to consolidate facilities or relocate employees,  and costs to
terminate contracts (other than a capital lease).  Under prior GAAP, a liability
for such an exit cost is recognized  at the date an exit plan is adopted,  which
may or may not be the date at which the liability has been incurred.  The effect
of adopting  SFAS No. 146 as of January 1, 2003 was not  material as the Company
was not involved in any exit or disposal  activities covered by the scope of the
new standard as of such date.

     Variable  interest  entities.  The Company complied with the  consolidation
requirements of FASB Interpretation ("FIN") No. 46R,  "Consolidation of Variable
Interest Entities," an interpretation of ARB No. 51, as amended, as of March 31,
2004.  The Company  does not have any  involvement  with any  variable  interest
entity (as that term is defined in FIN No. 46R)  covered by the scope of FIN No.
46R that would require the Company to consolidate  such entity under FIN No. 46R
which had not  already  been  consolidated  under  prior  applicable  GAAP,  and
therefore the impact to the Company of adopting the  consolidation  requirements
of FIN No. 46R was not material.

Note 23 - Accounting principles not yet adopted:

     Inventory costs. The Company will adopt SFAS No. 151,  "Inventory Costs, an
amendment of ARB No. 43,  Chapter 4," for inventory  costs  incurred on or after
January 1, 2006.  SFAS No. 151 requires that the allocation of fixed  production
overhead costs to inventory shall be based on normal  capacity.  Normal capacity
is not defined as a fixed amount;  rather,  normal capacity refers to a range of
production  levels expected to be achieved over a number of periods under normal
circumstances,  taking into account the loss of capacity  resulting from planned
maintenance  shutdowns.  The amount of fixed overhead  allocated to each unit of
production is not increased as a consequence of idle plant or production  levels
below the low end of normal  capacity,  but instead a portion of fixed  overhead
costs  are  charged  to  expense  as  incurred.  Alternatively,  in  periods  of
production above the high end of normal  capacity,  the amount of fixed overhead
costs allocated to each unit of production is decreased so that  inventories are
not measured above cost.  SFAS No. 151 also  clarifies  existing GAAP to require
that  abnormal  freight and wasted  materials  (spoilage)  are to be expensed as
incurred.  The Company believes its production cost accounting  already complies
with the  requirements of SFAS No. 151, and the Company does not expect adoption
of SFAS No.  151 will  have a  material  effect  on its  consolidated  financial
statements.

     Stock  options.  As  permitted by  regulations  of the SEC the Company will
adopt SFAS No.  123R,  "Share-Based  Payment,"  as of January 1, 2006.  SFAS No.
123R, among other things, eliminates the alternative in existing GAAP to use the
intrinsic value method of accounting for stock-based employee compensation under
APBO No. 25. Upon  adoption of SFAS No.  123R,  the Company  will  generally  be
required to recognize the cost of employee  services received in exchange for an
award of equity  instruments  based on the  grant-date  fair value of the award,
with the cost recognized over the period during which an employee is required to
provide services in exchange for the award (generally, the vesting period of the
award).  No  compensation  cost will be  recognized  in the aggregate for equity
instruments  for  which the  employee  does not  render  the  requisite  service
(generally, if the instrument is forfeited before it has vested). The grant-date
fair value will be estimated using option-pricing models (e.g.  Black-Scholes or
a lattice  model).  Under the transition  alternatives  permitted under SFAS No.
123R,  the Company will apply the new  standard to all new awards  granted on or
after January 1, 2006, and to all awards  existing as of December 31, 2005 which
are subsequently modified, repurchased or cancelled. Additionally, as of January
1, 2006, the Company will be required to recognize  compensation cost previously
measured under SFAS No. 123 for the portion of any non-vested  award existing as
of December 31, 2005 over the remaining  vesting  period.  Because the number of
non-vested  awards as of December 31, 2005 with respect to options granted by NL
is not  expected  to be  material,  and  because the Company has not granted any
options and does not expect to grant any options  prior to January 1, 2006,  the
effect of adopting SFAS No. 123R is not expected to be  significant in so far as
it relates to the recognition of compensation cost in the Company's consolidated
statements of income for existing stock options.  Should NL or its  subsidiaries
and affiliates, however, either grant a significant number of options or modify,
repurchase or cancel existing options in the future, the Company could recognize
material   amounts  of  compensation   cost  related  to  such  options  in  its
consolidated financial statements.

     Also upon adoption of SFAS No. 123R, any cash income tax benefit  resulting
from the  exercise  of stock  options  in excess of the  cumulative  income  tax
benefit  related  to such  options  previously  recognized  for  GAAP  financial
reporting purposes in the Company's  consolidated  statements of income, if any,
will be reflected as a cash inflow from  financing  activities  in the Company's
consolidated  statements  of cash  flows,  and the  Company's  cash  flows  from
operating  activities  will  reflect  the effect of cash paid for  income  taxes
exclusive of such cash income tax benefit.

     SFAS No. 123R also  requires  certain  expanded  disclosures  regarding the
Company's  stock options,  and such expanded  disclosures  have been provided in
Note 14.

Note 24 - Discontinued operations:

     In December 2004, CompX's board of directors  committed to a formal plan to
dispose of its Thomas Regout  operations in the  Netherlands.  Such  operations,
which  previously were included in the Company's  component  products  operating
segment (see Note 3), met all of the criteria  under GAAP to be classified as an
asset  held for sale at  December  31,  2004,  and  accordingly  the  results of
operations of Thomas Regout have been classified as discontinued  operations for
all periods presented. The Company has not reclassified its consolidated balance
sheets or statements of cash flows.  In classifying the net assets of the Thomas
Regout  operations  as an asset held for sale,  the Company  concluded  that the
estimated fair value less costs to sell of such operations exceeded the carrying
amount of the related net assets,  and accordingly in the fourth quarter of 2004
the  Company  recognized  a $6.5  million  impairment  charge to write  down its
investment in the Thomas Regout  operations to estimated  realizable value. Such
impairment charge represented an impairment of goodwill. See Note 8.

     In January 2005,  CompX  completed the sale of such operations for proceeds
(net of expenses) of approximately $18.1 million in cash at the date of sale and
a $4.2 million  principal  amount note  receivable  from the  purchaser  bearing
interest at a fixed rate of 7% and payable over four years.  The note receivable
is  collateralized by a secondary lien on the assets sold and is subordinated to
certain third-party indebtedness of the purchaser.  Accordingly,  the Company no
longer  includes  the  results of  operations  of Thomas  Regout  subsequent  to
December 31, 2004 in its  consolidated  financial  statements.  The net proceeds
from the January 2005 sale of Thomas  Regout were  $860,000  (before  income tax
benefit) less than the net realizable value previously estimated at the time the
goodwill impairment charge (primarily due to higher expenses associated with the
disposal of such operations),  and discontinued  operations in the first quarter
of 2005 includes a charge related to such  differential  ($326,000  loss, net of
income tax benefit and minority interest).  Such change represents an additional
impairment of goodwill.

     Condensed  income  statement data for Thomas Regout is presented below. The
$6.5 million impairment charge is included in Thomas Regout's operating loss for
2004. Interest expense included in discontinued  operations  represents interest
on certain intercompany indebtedness with CompX, which indebtedness arose at the
time of CompX's acquisition of such operations prior to 2002 and corresponded to
certain third-party indebtedness CompX incurred at the time such operations were
acquired.  Discontinued  operations in 2004  includes a $4.2 million  income tax
benefit  associated  with the U.S.  capital loss  expected to be realized in the
first  quarter  of  2005  upon  completion  of the  sale  of the  Thomas  Regout
operations.  Under applicable GAAP, CompX recognized the benefit of such capital
loss in the fourth quarter of 2004 at the time such  operations  were classified
as held for sale  because  the Company  concluded  that such  benefit  meets the
more-likely-than-not recognition criteria as of December 31, 2004.



                                                        Years ended December 31,
                                                  ------------------------------------
                                                  2003             2004           2005
                                                  ----             ----           ----

                                                                        
Net sales                                       $   35.3        $   41.7         $   -
                                                ========        ========         =======

Operating loss                                  $   (5.5)       $   (3.5)        $   (.9)
Interest expense                                    (1.4)           (1.5)             -
Income tax benefit                                   2.6             4.6              .4
Minority interest in losses                          1.4             3.9              .2
                                                --------        --------         -------

                                                $   (2.9)       $    3.5         $   (.3)
                                                ========        ========         =======


     Condensed  balance sheet data for Thomas Regout,  included in the Company's
consolidated balance sheets, is presented below.



                                                                  December 31,
                                                                      2004
                                                                      ----

                                                                
Current assets                                                     $  18.0
Noncurrent assets                                                     11.0
                                                                   -------

                                                                   $  29.0
                                                                   =======

Current liabilities                                                $   5.0
Net assets                                                            24.0
                                                                   -------

                                                                   $  29.0
                                                                   =======


     Included in the net assets of Thomas Regout are certain  intercompany loans
payable  by  Thomas  Regout  to CompX  which  are  eliminated  in the  Company's
consolidated balance sheet.






                      NL INDUSTRIES, INC. AND SUBSIDIARIES

           SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF REGISTRANT

                            Condensed Balance Sheets

                           December 31, 2004 and 2005

                                 (In thousands)


                                                              2004               2005
                                                              ----               ----

 Current assets:
                                                                        
   Cash and cash equivalents                               $   45,029         $   20,149
   Restricted cash equivalents                                  3,131               -
   Restricted marketable debt securities                        6,713              5,428
   Accounts and notes receivable                                  478                100
   Receivable from subsidiaries and affiliates                  2,001              3,259
   Prepaid expenses                                               151                 50
   Deferred income taxes                                       12,435              5,026
                                                           ----------         ----------

       Total current assets                                    69,938             34,012
                                                           ----------         ----------

 Other assets:
   Marketable securities                                       56,707             65,175
   Restricted marketable debt securities                        3,848                -
   Investment in subsidiaries                                 119,278            107,664
   Investment in Kronos Worldwide, Inc.                       175,578            146,774
   Other                                                          301                269
   Property and equipment, net                                    646                642
                                                           ----------         ----------

       Total other assets                                     356,358            320,524
                                                           ----------         ----------

                                                           $  426,296         $  354,536
                                                           ==========         ==========

 Current liabilities:
   Payable to subsidiaries and affiliates                  $    1,644         $      518
   Accounts payable and accrued liabilities                    11,140              8,803
   Income taxes                                                 1,050                273
   Accrued environmental costs                                 11,216             11,113
   Deferred taxes                                              23,842               -
                                                           ----------         ----------

       Total current liabilities                               48,892             20,707
                                                           ----------         ----------

 Noncurrent liabilities:
   Deferred income tax                                         98,157             88,398
   Accrued environmental costs                                 23,050             12,420
   Accrued pension cost                                         7,968                942
   Accrued postretirement benefits cost                        10,572             10,141
   Other                                                        4,028              2,246
                                                           ----------         ----------

       Total noncurrent liabilities                           143,775            114,147
                                                           ----------         ----------

 Stockholders' equity                                         233,629            219,682
                                                           ----------         ----------

                                                           $  426,296         $  354,536
                                                           ==========         ==========






                      NL INDUSTRIES, INC. AND SUBSIDIARIES

     SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF REGISTRANT (CONTINUED)

                       Condensed Statements of Operations

                  Years ended December 31, 2003, 2004 and 2005

                                 (In thousands)



                                                         2003                2004              2005
                                                         ----                ----              ----

 Revenues and other income (expense):
     Equity in income from continuing operations of
                                                                                  
        subsidiaries and affiliates                   $   92,192         $  169,966        $   27,477
   Interest and dividends                                  1,858              1,420             3,105
   Interest income from subsidiaries                       1,184             13,649              -
   Securities transactions, net                            2,737              2,113            14,603
   Litigation settlements gains, net                         823                552             2,970
   Disposition of property & equipment                    10,325                 99              -
   Other income, net                                         414                223               335
                                                      ----------         ----------        ----------

                                                         109,533            188,022            48,490
                                                      ----------         ----------        ----------

 Costs and expenses:
   General and administrative                             54,154             17,984            19,779
   Interest                                                  909                409             -
                                                      ----------         ----------        ----------

                                                          55,063             18,393            19,779
                                                      ----------         ----------        ----------

   Income before income taxes                             54,470            169,629            28,711

 Provision for income taxes (benefit)                     72,777             10,368            (4,503)
                                                      ----------         ----------        ----------

   Income (loss) from continuing operations              (18,307)           159,261            33,214

 Discontinued operations                                  (2,874)             3,552              (326)
                                                      ----------         ----------        ----------

 Net income (loss)                                    $  (21,181)        $  162,813        $   32,888
                                                      ==========         ==========        ==========






                      NL INDUSTRIES, INC. AND SUBSIDIARIES

     SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF REGISTRANT (CONTINUED)

                       Condensed Statements of Cash Flows

                  Years ended December 31, 2003, 2004 and 2005

                                 (In thousands)


                                                         2003                2004              2005
                                                         ----                ----              ----


 Cash flows from operating activities:
                                                                                  
     Net income (loss)                                $  (21,181)        $  162,813        $   32,888
     Distributions from Kronos                             7,000             23,168            17,593
     Distributions from CompX                               -                 1,297             5,224
     Noncash interest expense (income), net                 (869)              -                 -
     Deferred income taxes                                53,220             (3,621)          (20,612)
     Equity in earnings of subsidiaries
      and investments:
         Continuing operations                           (92,192)          (169,966)          (27,477)
         Discontinued operations                           2,874                684               326
     Securities transactions                              (2,737)            (2,113)          (14,603)
     Other, net                                          (11,304)            (1,203)           (1,225)
   Net change in assets and liabilities                   45,244             (3,967)           (2,204)
                                                      ----------         ----------        ----------

        Net cash provided (used) by
         operating activities                            (19,945)             7,092           (10,090)
                                                      ----------         ----------        ----------

 Cash flows from investing activities:
     Repayment of loans by affiliates                       -                31,423              -
     Change in restricted cash equivalents
        and restricted marketable debt
        securities, net                                   42,744             14,460             3,591
     Proceeds from disposition of property
      and equipment                                       12,420               -                 -
     Proceeds from sales of securities                      -                 2,745            19,176
     Purchase of CompX common stock                         -                  -               (3,645)
                                                      ----------         ----------        ----------

        Net cash provided by investing
         activities                                       55,164             48,628            19,122
                                                      ----------         ----------        ----------

 Cash flows from financing activities:
   Loans from affiliates, net                              2,620            (22,320)             -
   Dividends paid                                        (38,183)             -               (36,419)
   Common stock issued                                      -                   915             2,507
   Treasury stock reissued                                 1,738              8,286             -
                                                      ----------         ----------        ----------

        Net cash used by financing activities            (33,825)           (13,119)          (33,912)
                                                      ----------         ----------        ----------

 Net change during the year from operating
     investing and financing activities                    1,394             42,601           (24,880)
 Balance at beginning of year                              1,034              2,428            45,029
                                                      ----------         ----------        ----------

 Balance at end of year                                $   2,428         $   45,029        $   20,149
                                                      ==========         ==========        ==========




                      NL INDUSTRIES, INC. AND SUBSIDIARIES

     SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF REGISTRANT (CONTINUED)

                    Notes to Condensed Financial Information


Note 1 - Basis of presentation:

     The  Consolidated  Financial  Statements  of NL  Industries,  Inc.  and the
related Notes to Consolidated  Financial  Statements are incorporated  herein by
reference.  The accompanying financial statements reflect NL Industries,  Inc.'s
investment in Kronos Worldwide,  Inc., CompX International,  Inc. and NL's other
subsidiaries on the equity method of accounting.

Note 2 - Investment in and advances to subsidiaries:


                                                                   December 31,
                                                            -------------------------
                                                             2004               2005
                                                             ----               ----
                                                                  (In thousands)
 Current:
     Receivable from:
                                                                          
        Kronos                                             $    -               $     145
        EWI - income taxes                                       130                  166
        Valhi - income taxes                                   1,381                2,073
        153506 Canada                                            410                  413
        CompX - income taxes                                      52                  462
        Other                                                     28                 -
                                                           ---------            ---------

                                                           $   2,001            $   3,259
                                                           =========            =========
     Payable to:
        CompX - income taxes                               $   1,253            $   -
        Valhi - income taxes                                      86                -
        Tremont                                                  288                  221
        EMS                                                        -                  297
        Other                                                     17                -
                                                           ---------            ---------

                                                           $   1,644            $     518
                                                           =========            =========




                                                                   December 31,
                                                            -------------------------
                                                             2004               2005
                                                             ----               ----
                                                                  (In thousands)

Investment in:
                                                                          
    CompX                                                  $  90,045            $  89,625
    Other subsidiaries                                        29,233               18,039
                                                           ---------            ---------

                                                           $ 119,278            $ 107,664
                                                           =========            =========




                                                                  Years ended December 31,
                                                         ----------------------------------------
                                                         2003              2004              2005
                                                         ----              ----              ----
                                                                      (In thousands)

Equity in income from continuing operations
 of subsidiaries and affiliates:
                                                                                 
    Kronos                                             $ 86,642          $158,373         $ 25,549
    CompX                                                 3,747             6,039              592
    Other subsidiaries                                    1,803             5,554            1,336
                                                       --------          --------         --------

                                                       $ 92,192          $169,966         $ 27,477
                                                       ========          ========         ========




                      NL INDUSTRIES, INC. AND SUBSIDIARIES

                 SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

                                 (In thousands)


                                                               Additions
                                               Balance at     (recoveries)                                                Balance
                                               beginning       charged to         Net         Currency                    at end
                                                of year        costs and      deductions     translation      Other       of year
       Description                                              expenses                                     (1)/(2)
- ---------------------------------             -----------     ------------    ----------     -----------     -------     ---------
Year ended December 31, 2003:
                                                                                                        
  Allowance for doubtful accounts               $ 3,417         $   624         $  (537)       $   491        $   -       $ 3,995
                                                =======         =======         =======        =======        ======      =======

  Allowance for slow moving and
   obsolete inventories                         $ 9,314         $ 2,076         $(1,699)       $   182        $    -      $ 9,873
                                                =======         =======         =======        =======        ======      =======

    Accrual for planned major
     maintenance activities                     $ 3,986         $ 5,337         $(3,896)       $   900        $   -       $ 6,327
                                                =======         =======         =======        =======        ======      =======

Year ended December 31, 2004:
  Allowance for doubtful accounts               $ 3,995         $   188         $  (324)       $    (2)       $ (2,849)   $ 1,008
                                                =======         =======         =======        =======        ======      =======

  Allowance for slow moving and
   obsolete inventories                         $ 9,873         $ 1,242         $(1,969)       $    29        $ (7,959)   $ 1,216
                                                =======         =======         =======        =======        ======      =======

    Accrual for planned major
     maintenance activities                     $ 6,327         $ 5,311         $(4,993)       $  (156)       $ (6,489)   $  -
                                                =======         =======         =======        =======        ======      =======

Year ended December 31, 2005:
  Allowance for doubtful accounts               $ 1,008         $  (127)        $   (18)       $     3        $   (554)   $   312
                                                =======         =======         =======        =======        ======      =======

  Allowance for slow moving and
   obsolete inventories                         $ 1,216         $   373         $  (652)       $     2        $    254    $ 1,193
                                                =======         =======         =======        =======        ======      =======


Note -    Certain  information has been omitted from this Schedule  because it
          is disclosed in the notes to the  Consolidated  Financial  Statements.
          Information is presented for continuing operations only.

(1)       Effective  July 1, 2004 NL commenced  accounting for its investment in
          Kronos   Worldwide,   Inc.   using  the   equity   method  and  ceased
          consolidation of Kronos' operations at that time.

(2)       For the year ended December 31, 2005,  acquisition  and/or disposition
          of business unit.