Exhibit 21.1
Cornerstone Building Brands, Inc.
List of Subsidiaries
Alenco Building Products Management, L.L.C. | Delaware | |||||||
Alenco Extrusion GA, L.L.C. | Delaware | |||||||
Alenco Extrusion Management, L.L.C. | Delaware | |||||||
Alenco Holding Corporation | Delaware | |||||||
Alenco Interests, L.L.C. | Delaware | |||||||
Alenco Trans, Inc. | Delaware | |||||||
Alenco Window GA, L.L.C. | Delaware | |||||||
Aluminum Scrap Recycle, L.L.C. | Delaware | |||||||
American Screen Manufacturers, Inc. | Delaware | |||||||
Atrium Corporation | Delaware | |||||||
Atrium Extrusion Systems, Inc. | Delaware | |||||||
Atrium Intermediate Holdings, Inc. | Delaware | |||||||
Atrium Parent, Inc. | Delaware | |||||||
Atrium Windows and Doors, Inc. | Delaware | |||||||
AWC Arizona, Inc. | Delaware | |||||||
AWC Holding Company | Delaware | |||||||
Briden Acquisition, LLC | Delaware | |||||||
Brock Doors & Windows Ltd. | Ontario, Canada | |||||||
Brockmeyer Acquisition, LLC | Delaware | |||||||
Building Systems de Mexico, S.A. de C.V. | Mexico | |||||||
Canyon Acquisition, LLC | Delaware | |||||||
Cascade Windows, Inc. | Delaware | |||||||
CENTRIA | Pennsylvania General Partnership | |||||||
CENTRIA, Inc. | Delaware | |||||||
CENTRIA Services Group, LLC | Pennsylvania | |||||||
Champion Window, Inc. | Delaware | |||||||
Cornerstone Latin American Services, S.R.L. | Costa Rica | |||||||
Environmental Materials, Inc. | Delaware | |||||||
Environmental Materials, LLC | Delaware | |||||||
Environmental Materials L.P. | Delaware | |||||||
Environmental Stoneworks, LLC | Delaware | |||||||
Environmental Stucco LLC | Delaware | |||||||
Foundation Labs by Ply Gem, LLC | Delaware | |||||||
Gienow Canada Inc. | Alberta, Canada | |||||||
Glazing Industries Management, L.L.C. | Delaware | |||||||
Great Lakes Window, Inc. | Ohio | |||||||
Kleary Masonry, Inc. | California | |||||||
Kroy Building Products, Inc. | Delaware | |||||||
KWPI Holdings Corp. | Delaware | |||||||
Mastic Home Exteriors, Inc. | Ohio | |||||||
Mitten Inc. | Ontario, Canada | |||||||
MW Manufacturers Inc. | Delaware | |||||||
MWM Holding, Inc. | Delaware |
Napco, Inc. | Delaware | |||||||
NCI Group, Inc. | Nevada | |||||||
New Alenco Extrusion, Ltd. | Texas | |||||||
New Alenco Window, Ltd. | Texas | |||||||
New Glazing Industries, Ltd. | Texas | |||||||
PBCS Acquisition, LLC | Delaware | |||||||
Prime Window Systems, LLC | Delaware | |||||||
Ply Gem Holdings, Inc. | Delaware | |||||||
Ply Gem Industries, Inc. | Delaware | |||||||
Ply Gem Pacific Windows Corporation | Delaware | |||||||
Ply Gem Specialty Products, LLC | Delaware | |||||||
Reed's Metals, LLC | Delaware | |||||||
Reed's Metals of Alabama, LLC | Delaware | |||||||
Robertson-Ceco II Corporation | Delaware | |||||||
Schuylkill Stone, LLC | Delaware | |||||||
Silver Line Building Products LLC | Delaware | |||||||
SimEx, Inc. | West Virginia | |||||||
Simonton Building Products LLC | Delaware | |||||||
Simonton Industries, Inc. | California | |||||||
Simonton Windows & Doors, Inc. | Delaware | |||||||
Simonton Windows, Inc. | West Virginia | |||||||
St. Croix Acquisition, LLC | Delaware | |||||||
Steelbuilding.com, LLC | Delaware | |||||||
Talus Systems, LLC | Delaware | |||||||
Thermal Industries, Inc. | Delaware | |||||||
UCC Intermediate Holdings, Inc. | Delaware | |||||||
Union Corrugating Company | North Carolina | |||||||
Union Corrugating Company Holdings, Inc. | Delaware | |||||||
Van Well Acquisition, LLC | Delaware | |||||||
Variform, Inc. | Missouri | |||||||
Window Products, Inc. | Washington |