Ducommun Incorporated (Ducommun), through its subsidiaries, designs, engineers and manufactures aerostructure and electromechanical components and subassemblies and provides engineering, technical and program management services principally for the aerospace industry. These components, assemblies and services are provided principally for domestic and foreign commercial and military aircraft, helicopter, missile, as well as space programs. Ducommun operates in two business segments: Ducommun AeroStructures, Inc. (DAS), which engineers and manufactures aerospace structural components and subassemblies and Ducommun Technologies, Inc. (DTI), which designs, engineers and manufactures electromechanical and electronic components and subassemblies, and provides engineering, technical and program management services principally for the aerospace industry. On December 23, 2008, the Company acquired DynaBil Industries, Inc.