D3 Technologies Receives "Supplier of the Year" From Boeing

| Source: LMI Aerospace, Inc.

ST. LOUIS, April 19, 2012 (GLOBE NEWSWIRE) -- LMI Aerospace, Inc. (Nasdaq:LMIA), a leading provider of design engineering services, structural assemblies, kits and components to the aerospace, defense and technology markets, today announced that its subsidiary, D3 Technologies, Inc., has been recognized as Supplier of the Year in the Non-Production Services category by The Boeing Company. D3 Technologies was one of 14 companies and two universities honored last night for distinguished performance in working with Boeing.

In January, D3 Technologies was notified that it was one of 529 companies to receive the Boeing Performance Excellence Award, which rewards overall performance excellence. Achieving the Supplier of the Year designation further acknowledges superior performance.

This year's winners represent an elite group among more than 17,525 active Boeing suppliers in nearly 52 countries around the world. This selection was based on stringent performance criteria for quality, delivery performance, cost, customer service and technical expertise.

"Winning Boeing's Supplier of the Year award is a great honor and demonstrates that D3 and its employees are in line with the high level of customer satisfaction that Boeing expects and deserves as a most important customer," said Richard Johnson, President of D3 Technologies. "On behalf of all of the employees of D3 Technologies, as well as its parent, LMI Aerospace, we thank Boeing for this incredible honor and recognition. We also want to thank and recognize the employees of D3 Technologies, whose technical capability, dedication and customer focus earned this award. We look forward to working together with Boeing for our mutual success for many years to come."

For more information on the Boeing Supplier of the Year award, including a video gallery, visit http://www.boeing.com/aboutus/supplier_of_the_year/soy2011_gallery.html.

About D3 Technologies: Founded in 1982, D3 Technologies is a premier provider of complex design and engineering services to the aerospace and defense industry. D3 performs structure and sub-structure design work for manufacturers of commercial, business, and military aircraft, including Boeing, Spirit AeroSystems, Bombardier Aerospace, Lockheed Martin and others. Key projects for D3 include roles on Boeing's 787, 777 Freighter, 767 Tanker and 747-8 programs, as well as Lockheed's F-35 Lightning II and Gulfstream's G650 program. In addition, D3 also provides program management support to many of its clients and is actively engaged in the development of several next generation platforms.

About LMI Aerospace: LMI Aerospace, Inc. is a leading provider of design engineering services, structural assemblies, kits and components to the aerospace, defense and technology markets. Through its Aerostructures segment, the company primarily fabricates, machines, finishes, integrates, assembles and kits formed close tolerance aluminum and specialty alloy and composite components and higher level assemblies for use by the aerospace, defense and technology industries. It manufactures more than 30,000 products for integration into a variety of aircraft platforms manufactured by leading original equipment manufacturers and Tier 1 aerospace suppliers. Through its Engineering Services segment, operated by its D3 Technologies, Inc. subsidiary, the company provides a complete range of design, engineering and program management services, supporting aircraft product lifecycles from conceptual design, analysis and certification through production support, fleet support and service life extensions via a complete turnkey engineering solution.

The LMI Aerospace, Inc. logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=4971

Ed Dickinson
Chief Financial Officer