Exhibit 21.1
Applied Aerospace & Defense, Inc.
Subsidiaries
| Name of Subsidiary | Jurisdiction of Incorporation | |
| AA&D Midco, Inc. | Delaware | |
| AA&D Parent, Inc. | Delaware | |
| Alken Industries Inc. | New York | |
| American Flowform & Machining, LLC | Delaware | |
| American Flowform Products, LLC | Delaware | |
| Applied Aerospace Structures, LLC | Illinois | |
| Consolidated Boring Inc. | Delaware | |
| Faxon Machining, LLC | Ohio | |
| Honematic Machine Corporation | Massachusetts | |
| ICE-Bula Holdings, Inc. | Washington | |
| Innovative Composite Engineering LLC | Washington | |
| Integral Aerospace, LLC | Delaware | |
| KE Company Acquisition Corp. | Delaware | |
| MSI Disposition, Inc. | New Mexico | |
| NeXolve Holding Company, LLC | Alabama | |
| NeXolve Holdings, Inc. | Delaware | |
| NuSpace, Inc. | California | |
| PCX Aerostructures, LLC | Delaware | |
| PCX Aerosystems – Manchester, LLC | Delaware | |
| PCX Aerosystems Enfield, LLC | Delaware | |
| SA Aviation Systems Holdings Inc. | Delaware | |
| Ultracor, Inc. | California | |
| Vestigo Aerospace, Inc. | Delaware | |