EX-21.1 3 d440636dex211.htm EX-21.1

EXHIBIT 21.1

SUBSIDIARIES OF THE REGISTRANT

Name of Corporation |  | Jurisdiction of Incorporation or Organization |  | % of Voting Securities Held at December 31, 2012 (1) |
Amcorp, Inc. |  | Delaware |  |  | 100 | %
ASC Holdings, Inc. |  | Utah |  |  | 100 | %
Amaltex, Inc. |  | Texas |  |  | 100 | %
Andrews County Holdings, Inc. |  | Delaware |  |  | 100 | %
Waste Control Specialists LLC |  | Delaware |  |  | 100 | %
Kronos Worldwide, Inc. (2) |  | Delaware |  |  | 50 | %
NL Industries, Inc. (2), (3), (4) |  | New Jersey |  |  | 83 | %
CompX International Inc. (4) |  | Delaware |  |  | 87 | %
Tremont LLC |  | Delaware |  |  | 100 | %
TRECO L.L.C. |  | Nevada |  |  | 100 | %
Basic Management, Inc. |  | Nevada |  |  | 32 | %
Basic Water Company |  | Nevada |  |  | 100 | %
Basic Environmental Control LLC |  | Nevada |  |  | 100 | %
Basic Power Company |  | Nevada |  |  | 100 | %
Basic Remediation Company LLC |  | Nevada |  |  | 100 | %
Basic Land Company |  | Nevada |  |  | 100 | %
The Landwell Company LP |  | Delaware |  |  | 50 | %
The Landwell Company LP |  | Delaware |  |  | 12 | %
TRE Holding Corporation |  | Delaware |  |  | 100 | %
TRE Management Company |  | Delaware |  |  | 100 | %
Tall Pines Insurance Company |  | Vermont |  |  | 100 | %
Medite Corporation |  | Delaware |  |  | 100 | %
Impex Realty Holding, Inc. |  | Delaware |  |  | 100 | %

(1) | Held by the Registrant or the indicated subsidiary of the Registrant.

(2) | Subsidiaries of Kronos are incorporated by reference to Exhibit 21.1 of Kronos’ Annual Report on Form 10-K for the year ended December 31, 2012 (File No. 333-100047). NL owns an additional 30% of Kronos directly.

(3) | Subsidiaries of NL are incorporated by reference to Exhibit 21.1 of NL’s Annual Report on Form 10-K for the year ended December 31, 2012 (File No. 1-640).

(4) | Subsidiaries of CompX are incorporated by reference to Exhibit 21.1 of CompX’s Annual Report on Form 10-K for the year ended December 31, 2012 (File No. 1-13905).