EXHIBIT 21.1 SUBSIDIARIES OF THE REGISTRANT - ------------ ------------------------------ Jurisdiction of % of Voting Incorporation or Securities Name of Corporation Organization Held (2) - ---------------------------------------- ---------------- ----------- Amcorp, Inc. Delaware 100% The Amalgamated Sugar Company Utah 100 Amalgamated Research, Inc. Idaho 100 Valcor, Inc. Delaware 100 Medite Corporation Delaware 100 CompX International Inc. Delaware 100 Waterloo Furniture Components Limited Canada 100 Sybra, Inc. Michigan 100 Other wholly-owned Valmont Insurance Company Vermont 100 New England Insurance Services Company Vermont 100 Henry Forks Financial, Inc. Delaware 100 Impex Realty Holding, Inc. Delaware 100 Medco FSC, Inc. U.S. Virgin Islands 100 NL Industries, Inc. (1) New Jersey 56 Andrews County Holdings, Inc. Delaware 100 Waste Control Specialists LLC Delaware 50 Greenhill Technologies Inc. Delaware 50 <FN> (1) 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, 1996 (File No. 1-640). (2) Held by the Registrant or the indicated subsidiary of the Registrant. 22.1