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EXHIBIT 21

SUBSIDIARIES OF THE REGISTRANT

Following is a list of the subsidiaries of the Company(1):

Name of Subsidiary						Jurisdiction of Incorporation
BLR Aerospace, L.L.C.						Washington
Certified Thermoplastics Co., LLC						Delaware
CMP Display Systems, Inc.(2)						California
Composite Structures, LLC						Delaware
Ducommun AeroStructures, Inc.						Delaware
Ducommun AeroStructures Mexico, LLC						Delaware
Ducommun AeroStructures New York, Inc.						New York
Ducommun (England) LTD						England
Ducommun LaBarge Technologies, Inc.						Arizona
Ducommun LaBarge Technologies, Inc.						Delaware
Ducommun Technologies (Thailand) Co., Ltd.						Thailand
LaBarge Acquisition Company, Inc.						Missouri
LaBarge/STC, Inc.(2)						Texas
Lightning Diversion Systems, LLC						Delaware
LS Holdings Company, LLC						Delaware
Magnetic Seal LLC						Delaware
Nobles Holdings Inc.						Delaware
Nobles Parent Inc.						Delaware
Nobles Worldwide, Inc.						Minnesota

(1) As of December 31, 2023.

(2) Inactive.