¨
|
Rule
13d-1(b)
|
¨
|
Rule
13d-1(c)
|
ý
|
Rule
13d-1(d)
|
1
|
NAME
OF REPORTING PERSON
NL
Industries, Inc.
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)
¨
(b)
¨
|
||
3
|
SEC
USE ONLY
|
||
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
New
Jersey
|
||
NUMBER
OF
|
5
|
SOLE
VOTING POWER
-0-
|
|
SHARES
BENEFICIALLY
OWNED
BY
EACH
|
6
|
SHARED
VOTING POWER
17,516,132
|
|
REPORTING
PERSON
WITH
|
7
|
SOLE
DISPOSITIVE POWER
-0-
|
|
8
|
SHARED
DISPOSITIVE POWER
17,516,132
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
17,516,132
|
||
10
|
CHECK
IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
SHARES ¨
|
||
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW 9
35.8%
|
||
12
|
TYPE
OF REPORTING PERSON
CO
|
1
|
NAME
OF REPORTING PERSON
TIMET
Finance Management Company
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)
¨
(b)
¨
|
||
3
|
SEC
USE ONLY
|
||
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Delaware
|
||
NUMBER
OF
|
5
|
SOLE
VOTING POWER
-0-
|
|
SHARES
BENEFICIALLY
OWNED
BY
EACH
|
6
|
SHARED
VOTING POWER
17,521,335
|
|
REPORTING
PERSON
WITH
|
7
|
SOLE
DISPOSITIVE POWER
-0-
|
|
8
|
SHARED
DISPOSITIVE POWER
17,521,335
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
17,521,335
|
||
10
|
CHECK
IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
SHARES ¨
|
||
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW 9
35.8%
|
||
12
|
TYPE
OF REPORTING PERSON
CO
|
1
|
NAME
OF REPORTING PERSON
Titanium
Metals Corporation
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)
¨
(b)
¨
|
||
3
|
SEC
USE ONLY
|
||
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Delaware
|
||
NUMBER
OF
|
5
|
SOLE
VOTING POWER
-0-
|
|
SHARES
BENEFICIALLY
OWNED
BY
EACH
|
6
|
SHARED
VOTING POWER
17,521,335
|
|
REPORTING
PERSON
WITH
|
7
|
SOLE
DISPOSITIVE POWER
-0-
|
|
8
|
SHARED
DISPOSITIVE POWER
17,521,335
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
17,521,335
|
||
10
|
CHECK
IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
SHARES ¨
|
||
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW 9
35.8%
|
||
12
|
TYPE
OF REPORTING PERSON
CO
|
1
|
NAME
OF REPORTING PERSON
Valhi,
Inc.
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)
¨
(b)
¨
|
||
3
|
SEC
USE ONLY
|
||
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Delaware
|
||
NUMBER
OF
|
5
|
SOLE
VOTING POWER
-0-
|
|
SHARES
BENEFICIALLY
OWNED
BY
EACH
|
6
|
SHARED
VOTING POWER
46,516,356
|
|
REPORTING
PERSON
WITH
|
7
|
SOLE
DISPOSITIVE POWER
-0-
|
|
8
|
SHARED
DISPOSITIVE POWER
46,516,356
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
46,516,356
|
||
10
|
CHECK
IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
SHARES ¨
|
||
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW 9
95.0%
|
||
12
|
TYPE
OF REPORTING PERSON
CO
|
1
|
NAME
OF REPORTING PERSON
Valhi
Holding Company
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)
¨
(b)
¨
|
||
3
|
SEC
USE ONLY
|
||
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Delaware
|
||
NUMBER
OF
|
5
|
SOLE
VOTING POWER
-0-
|
|
SHARES
BENEFICIALLY
OWNED
BY
EACH
|
6
|
SHARED
VOTING POWER
46,516,356
|
|
REPORTING
PERSON
WITH
|
7
|
SOLE
DISPOSITIVE POWER
-0-
|
|
8
|
SHARED
DISPOSITIVE POWER
46,516,356
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
46,516,356
|
||
10
|
CHECK
IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
SHARES ¨
|
||
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW 9
95.0%
|
||
12
|
TYPE
OF REPORTING PERSON
CO
|
1
|
NAME
OF REPORTING PERSON
Dixie
Rice Agricultural Corporation, Inc.
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)
¨
(b)
¨
|
||
3
|
SEC
USE ONLY
|
||
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Louisiana
|
||
NUMBER
OF
|
5
|
SOLE
VOTING POWER
-0-
|
|
SHARES
BENEFICIALLY
OWNED
BY
EACH
|
6
|
SHARED
VOTING POWER
46,516,356
|
|
REPORTING
PERSON
WITH
|
7
|
SOLE
DISPOSITIVE POWER
-0-
|
|
8
|
SHARED
DISPOSITIVE POWER
46,516,356
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
46,516,356
|
||
10
|
CHECK
IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
SHARES ¨
|
||
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW 9
95.0%
|
||
12
|
TYPE
OF REPORTING PERSON
CO
|
1
|
NAME
OF REPORTING PERSON
Contran
Corporation
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)
¨
(b)
¨
|
||
3
|
SEC
USE ONLY
|
||
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Delaware
|
||
NUMBER
OF
|
5
|
SOLE
VOTING POWER
-0-
|
|
SHARES
BENEFICIALLY
OWNED
BY
EACH
|
6
|
SHARED
VOTING POWER
46,516,356
|
|
REPORTING
PERSON
WITH
|
7
|
SOLE
DISPOSITIVE POWER
-0-
|
|
8
|
SHARED
DISPOSITIVE POWER
46,516,356
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
46,516,356
|
||
10
|
CHECK
IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
SHARES ¨
|
||
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW 9
95.0%
|
||
12
|
TYPE
OF REPORTING PERSON
CO
|
1
|
NAME
OF REPORTING PERSON
The
Combined Master Retirement Trust
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)
¨
(b)
¨
|
||
3
|
SEC
USE ONLY
|
||
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Texas
|
||
NUMBER
OF
|
5
|
SOLE
VOTING POWER
-0-
|
|
SHARES
BENEFICIALLY
OWNED
BY
EACH
|
6
|
SHARED
VOTING POWER
46,516,356
|
|
REPORTING
PERSON
WITH
|
7
|
SOLE
DISPOSITIVE POWER
-0-
|
|
8
|
SHARED
DISPOSITIVE POWER
46,516,356
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
46,516,356
|
||
10
|
CHECK
IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
SHARES ¨
|
||
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW 9
95.0%
|
||
12
|
TYPE
OF REPORTING PERSON
EP
|
1
|
NAME
OF REPORTING PERSON
Harold
Simmons Foundation, Inc.
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)
¨
(b)
¨
|
||
3
|
SEC
USE ONLY
|
||
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Texas
|
||
NUMBER
OF
|
5
|
SOLE
VOTING POWER
-0-
|
|
SHARES
BENEFICIALLY
OWNED
BY
EACH
|
6
|
SHARED
VOTING POWER
46,516,356
|
|
REPORTING
PERSON
WITH
|
7
|
SOLE
DISPOSITIVE POWER
-0-
|
|
8
|
SHARED
DISPOSITIVE POWER
46,516,356
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
46,516,356
|
||
10
|
CHECK
IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
SHARES ¨
|
||
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW 9
95.0%
|
||
12
|
TYPE
OF REPORTING PERSON
CO
|
1
|
NAME
OF REPORTING PERSON
Harold
C. Simmons
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
|
||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)
¨
(b)
¨
|
||
3
|
SEC
USE ONLY
|
||
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
USA
|
||
NUMBER
OF
|
5
|
SOLE
VOTING POWER
135,367
|
|
SHARES
BENEFICIALLY
OWNED
BY
EACH
|
6
|
SHARED
VOTING POWER
46,552,712
|
|
REPORTING
PERSON
WITH
|
7
|
SOLE
DISPOSITIVE POWER
135,367
|
|
8
|
SHARED
DISPOSITIVE POWER
46,552,712
|
||
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
135,367
|
||
10
|
CHECK
IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
SHARES ý
|
||
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW 9
0.3%
|
||
12
|
TYPE
OF REPORTING PERSON
IN
|
Item
1(a)
|
Name
of Issuer:
|
|
Kronos
Worldwide, Inc., a Delaware corporation (the “Company”).
|
Item
1(b)
|
Address
of Issuer’s Principal Executive Offices:
|
|
Three
Lincoln Centre
|
|
5430
LBJ Freeway, Suite 1700
|
|
Dallas,
Texas 75240-2697
|
Items
2(a)
|
Name
of Person Filing:
|
|
(i)
|
NL
Industries, Inc. (“NL”) and
Valhi, Inc.
(“Valhi”) as
direct holders of shares (“Shares”) of
common
stock, par value $0.01 per share, of the Company;
|
|
(ii)
|
TIMET
Finance Management Company (“TFMC”) by
virtue of its
direct ownership of NL;
|
|
(iii)
|
Titanium
Metals Corporation (“TIMET”), Valhi
Holding
Company (“VHC”),
Dixie Rice Agricultural Corporation, Inc. (“Dixie Rice”), Contran
Corporation (“Contran”), The
Combined
Master Retirement Trust (the “CMRT”) and
the Harold
Simmons Foundation, Inc. (the “Foundation”) by
virtue
of their direct or indirect ownership of TFMC, NL or Valhi; and
|
|
(iv)
|
Harold
C. Simmons by virtue of his and his wife’s direct holdings of Shares and
his positions with Contran and certain of its related entities
(as
described in this statement).
|
Item
2(b).
|
Address
of Principal Business Office or, if none, Residence:
|
Item
2(c).
|
Citizenship:
|
Item
2(d).
|
Title
of Class of Securities:
|
Item
2(e).
|
CUSIP
Number:
|
Item
3.
|
If
this statement is filed pursuant to sections 240.13d-1(b) or 240.13d-2(b)
or (c), check whether the person filing is a:
|
|
(a)
|
¨
|
Broker
or dealer registered under section 15 of the Act (15 U.S.C. 78o);
|
|
(b)
|
¨
|
Bank
as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
|
|
(c)
|
¨
|
Insurance
company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
|
|
(d)
|
¨
|
Investment
Company registered under section 8 of the Investment Company Act
(15
U.S.C. 80a-8);
|
|
(e)
|
¨
|
Investment
adviser in accordance with section 240.13d-1(b)(1)(ii)(E);
|
|
(f)
|
¨
|
An
employee benefit plan or endowment fund in accordance with section
240.13d-1(b)(1)(ii)(F);
|
|
(g)
|
¨
|
A
parent holding company or control person in accordance with section
240.13d-1(b)(1)(ii)(G);
|
|
(h)
|
¨
|
A
savings association as defined in section 3(b) of the Federal Deposit
Insurance Act (12 U.S.C. 1813);
|
|
(i)
|
¨
|
A
church plan that is excluded from the definition of an investment
company
under section 3(c)(14) of the Investment Company Act of 1940 (15
U.S.C.
80a-3); or
|
|
(j)
|
¨
|
Group,
in accordance with section 240.13d-1(b)(1)(ii)(J).
|
Item
4.
|
Ownership
(as of December 31, 2007).
|
|
(1)
|
NL
may be deemed to own beneficially the 17,516,132 Shares (approximately
35.8% of the 48,956,549 Shares outstanding as of December 31, 2007
based
on information provided by the Company and hereinafter referred
to as the
“Outstanding
Shares”) that NL holds directly;
|
|
(2)
|
TFMC
and TIMET may be deemed to own beneficially the 17,521,335 Shares
(approximately 35.8% of the Outstanding Shares) that TFMC and NL
hold
directly;
|
|
(3)
|
Valhi,
VHC, Dixie Rice, Contran, the CMRT and the Foundation may be deemed
to own
beneficially the 46,516,356 Shares (approximately 95.0% of the
Outstanding
Shares) that TFMC, NL and Valhi hold directly; and
|
|
(4)
|
Harold
C. Simmons may be deemed to own beneficially the 46,688,079 Shares
(approximately 95.4% of the Outstanding Shares) that TFMC, NL,
Valhi, his
wife and he hold directly.
|
|
(c)
|
Number
of shares as to which the person has:
|
|
(i)
|
Sole
power to vote or to direct the vote:
|
|
(ii)
|
Shared
power to vote or to direct the vote:
|
|
(1)
|
NL
may be deemed to share the power to vote or direct the disposition
of the
17,516,132 Shares (approximately 35.8% of the Outstanding Shares)
that NL
holds directly;
|
|
(2)
|
TFMC
and TIMET may be deemed to share the power to vote or direct the
disposition of the 17,521,335 Shares (approximately 35.8% of the
Outstanding Shares) that TFMC and NL hold directly;
|
|
(3)
|
Valhi,
VHC, Dixie Rice, Contran, the CMRT and the Foundation may be deemed
to
share the power to vote or direct the disposition of the 46,516,356
Shares
(approximately 95.0% of the Outstanding Shares) that TFMC, NL and
Valhi
hold directly; and
|
|
(4)
|
Harold
C. Simmons may be deemed to share the power to vote or direct the
disposition of the 46,552,712 Shares (approximately 95.1% of the
Outstanding Shares) that TFMC, NL, Valhi and his wife hold directly.
|
|
(iii)
|
Sole
power to dispose or direct the disposition of:
|
|
(iv)
|
Shared
power to dispose or to direct the disposition of:
|
Item
5.
|
Ownership
of Five Percent or Less of a Class.
|
Item
6.
|
Ownership
of More than Five Percent on Behalf of Another Person.
|
Item
7.
|
Identification
and Classification of the Subsidiary Which Acquired the Security
Being
Reported on By the Parent Holding Company or Control Person.
|
Item
8.
|
Identification
and Classification of Members of the Group.
|
Item
9.
|
Notice
of Dissolution of Group.
|
Item
10.
|
Certification.
|
|
Signature
|