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EXHIBIT 21.1

List of Subsidiaries of EnergySolutions, Inc.

        The following table sets forth all subsidiaries of the Company, other than subsidiaries that, when considered in the aggregate, would not constitute a significant subsidiary, including the percentage of issued and outstanding voting securities beneficially owned by the Company:

EnergySolutions, LLC, a Utah limited liability company	100.00	%
BNG America LLC, a Delaware limited liability company	100.00	%
BNG America Savannah River Corporation, a Delaware corporation	100.00	%
EnergySolutions, Spent Fuel Division, Inc., a Delaware corporation	100.00	%
Manufacturing Sciences Corporation, a Colorado corporation	100.00	%
EnergySolution Company, Inc., a Delaware corporation	100.00	%
Duratek, Inc., a Delaware corporation	100.00	%
EnergySolutions Diversified Services, Inc., a Delaware corporation	100.00	%
Weskem LLC, a Delaware limited liability company	27.60	%
EnergySolutions EU Limited, a company incorporated in England & Wales	100.00	%
EnergySolutions EU Services Limited, a company incorporated in England & Wales	100.00	%
Magnox Limited, a company incorporated in England and Wales	100.00	%
Magnox Electric Group Pension Trustee Company Limited, a company incorporated in England and Wales	100.00	%
EnergySolutions Federal EPC, Inc., a Delaware corporation	100.00	%
EnergySolutions Government Group, Inc., a Delaware corporation	100.00	%
EnergySolutions Federal Services of Hanford, Inc., a Delaware corporation	100.00	%
EnergySolutions Oak Ridge, LLC, a Delaware limited liability company	100.00	%
EnergySolutions Performance Strategies Inc., a Georgia corporation	100.00	%
LATA/Parallax Portsmouth, LLC, a New Mexico limited liability company	49.00	%
West Valley Environmental Services LLC, a Delaware limited liability company	10.00	%
Global Threat Reduction Solutions, LLC, a Texas limited liability company	49.00	%
Isotek Systems, LLC, a Tennessee limited liability company	100.00	%
TPMC-EnergySolutions Environmental Services, LLC, a Texas limited liability company	49.00	%
TPMC-EnergySolutions Environmental Services 2008, LLC, a Texas limited liability company	49.00	%
TPMC-EnergySolutions Environmental Services 2009, LLC, a Texas limited liability company	49.00	%
TPMC-EnergySolutions Environmental Services 2010, LLC, a Texas limited liability company	49.00	%
TPMC-EnergySolutions Environmental Services 2011, LLC, a Texas limited liability company	49.00	%
TPMC-EnergySolutions Environmental Services 2012, LLC, a Texas limited liability company	49.00	%
Uranium Disposition Services, LLC, a Tennessee limited liability company	26.00	%
Washington River Protection Solutions LLC, a Delaware limited liability company	40.00	%
EnergySolutions Services, Inc., a Tennessee corporation	100.00	%
GTSD Sub IV, Inc., a Delaware corporation	100.00	%
Chem-Nuclear Systems, L.L.C., a Delaware limited liability company	100.00	%
EnergySolutions Canada Corporation, an Ontario corporation	100.00	%
Monserco Limited, an Ontario corporation	100.00	%
Hittman Transport Services, Inc., a Delaware corporation	100.00	%
Vitritek Environmental, Inc., a Delaware corporation	50.00	%
EnergySolutions Asia Limited, a Hong Kong holding company	100.00	%
Semprasafe LLC, a Delaware limited liability company	49.00	%
ZionSolutions, LLC, a Delaware limited liability company	100.00	%
423 IT Holdings, LLC, a Utah limited liability company	100.00	%

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EXHIBIT 21.1

List of Subsidiaries of Energy Solutions , Inc.