EX-21 2 a2209131zex-21.htm EX-21
QuickLinks -- Click here to rapidly navigate through this document

Exhibit 21

URANIUM RESOURCES, INC.

Subsidiaries of the Registrant

Subsidiary Name		Jurisdiction		Ownership
URI, Inc.		Delaware		100% by Uranium Resources, Inc.
Hydro Resources, Inc. (d/b/a HRI, Energy, Inc.)		Delaware		100% by URI, Inc.
URI Minerals, Inc.		Delaware		100% by Uranium Resources, Inc.
Hydro Restoration Corporation		Delaware		100% by Uranium Resources, Inc.
Belt Line Resources, Inc.		Texas		100% by Uranium Resources, Inc.
Uranco, Inc		Delaware		100% by Uranium Resources, Inc.
HRI-Churchrock, Inc.		Delaware		100% by Uranium Resources, Inc.
URI Neutron Holdings I, Inc.		Delaware		100% by Uranium Resources, Inc.
URI Neutron Holdings II, Inc.		Delaware		100% by URI Neutron Holdings I, Inc.
URI Merger Corporation		Nevada		100% by URI Neutron Holdings II, Inc.

QuickLinks

Exhibit 21

URANIUM RESOURCES, INC.