Exhibit 99.1

FOR IMMEDIATE RELEASE

Ducommun Reports Results for the

First Quarter Ended March 31, 2012

Strong Aerospace Growth, Cash Flow Improvement and Margin Expansion

LOS ANGELES, California (May 7, 2012)—Ducommun Incorporated (NYSE:DCO) today reported results for its first quarter ended March 31, 2012.

Highlights

“Our first quarter showed strong commercial aerospace growth and improvement in many of our financial metrics,” said Anthony J. Reardon, president and chief executive officer. “Ducommun’s adjusted EBITDA climbed to 10.3% of revenue from 9.1% in the first quarter of 2011, and we reduced our seasonal cash usage by $20.5 million versus first quarter 2011. With our backlog at record levels, the Company continues to benefit from increasing demand across its aerospace platforms, offsetting some near-term weakness in the industrial and natural resources end markets. We feel confident that margins will expand going forward, accompanied by solid cash flow generation, as we achieve operating synergies and pursue new business development initiatives.”

First Quarter Results

Sales for the first quarter of 2012 increased 85% to $184.3 million, compared with $99.6 million for the first quarter of 2011, reflecting $84.4 million in revenue from the acquisition of LaBarge. The Company reported net income of $2.4 million, or $0.23 per fully diluted share, compared with net income of $2.9 million, or $0.27 per fully diluted share, for the comparable period last year.

Adjusted EBITDA for the first quarter of 2012 increased to $19.0 million, or 10.3% of revenues, compared with $9.1 million, or 9.1% of revenues, for the comparable period last year.

Cash flow used in operations during the first quarter of 2012 was $4.8 million, as compared to usage of $25.3 million in the prior year’s first quarter. The $20.5 million improvement reflects better working capital management and higher operating efficiency.

Ducommun AeroStructures (DAS)

The DAS segment reported net sales for the first quarter of $74.3 million, compared with $72.2 million in the prior-year period, representing an increase of 2.9%. The higher revenues were primarily the result of increased shipments of commercial aerospace products. Operating income for the 2012 first quarter was $6.6 million, or 8.9% of revenues, compared with $7.1 million, or 9.8% of revenues, for the prior-year period. Operating income in 2012 was impacted by a higher proportion of sales of lower margin products. Adjusted EBITDA was $8.6 million, or 11.6% of revenues, compared with adjusted EBITDA of $9.6 million, or 13.3% of revenues, for the prior year period.

Ducommun LaBarge Technologies (DLT)

The DLT segment reported net sales for the first quarter of 2012 of $110.1 million, compared with $27.3 million in the first quarter of 2011, reflecting sales of $84.4 million from the acquisition of LaBarge. Operating income for the first quarter of 2012 was $8.3 million, or 7.5% of revenues, compared with operating income of $2.1 million, or 7.8% of revenues, in the 2011 first quarter. Adjusted EBITDA was $13.2 million, or 12.0% of revenues, compared with adjusted EBITDA of $3.0 million, or 10.9% of revenues, in the first quarter of 2011.

Corporate General and Administrative Expenses (CG&A)

CG&A expenses for the first quarter of 2012 were $3.0 million, or 1.6% of revenues, as compared with $4.9 million, or 5.0% of revenues, in the 2011 first quarter. CG&A was lower year-over-year primarily due to the reduction in transaction-related expenses from the LaBarge acquisition and integration cost synergies.

“We are pleased to see attractive build rates across the majority of our commercial aerospace programs, and we remain committed to achieving improved operating results in 2012,” Mr. Reardon added. “We are focused on driving margin expansion going forward, which is paramount to ensuring greater returns for our shareholders. With a strong product portfolio across a variety of end markets and a focus on delivering total customer satisfaction, we expect to continue to strengthen our market position.”

Conference Call

A teleconference hosted by Anthony J. Reardon, the Company’s president and chief executive officer, and Joseph P. Bellino, the Company’s vice president and chief financial officer, will be held on Tuesday, May 8, 2012 at 10:00 AM PT (1:00 PM ET) to review these financial results. To participate in the teleconference, please call 800-215-2410 (international 617-597-5410) approximately ten minutes prior to the conference time stated above. The participant passcode is 83260671. Mr. Reardon and Mr. Bellino will be speaking on behalf of the Company and anticipate the meeting and Q&A period to last approximately 45 minutes.

This call is being webcast by Thomson Reuters and can be accessed directly at the Ducommun website at www.ducommun.com. Conference call replay will be available after that time at the same link or by dialing 888-286-8010, passcode 50818777.

About Ducommun Incorporated

Founded in 1849, Ducommun Incorporated provides engineering and manufacturing services to the aerospace, defense, and other industries through a wide spectrum of electronic and structural applications. The company is an established supplier of critical components and assemblies for commercial aircraft and military and space vehicles as well as for the energy market, medical field, and industrial automation. It operates through two primary business units – Ducommun AeroStructures (DAS) and Ducommun LaBarge Technologies (DLT). Additional information can be found at www.ducommun.com.

Statements contained in this press release regarding other than recitation of historical facts are forward-looking statements. These statements are identified by words such as “may,” “will,” “ begin,” “ look forward,” “expect,” “believe,” “intend,” “anticipate,” “should”, “potential,” “estimate,” “continue,” “momentum” and other words referring to events to occur in the future. These statements reflect Company’s current view of future events and are based on its assessment of, and are subject to, a variety of risks and uncertainties beyond its control, including, but not limited to, the state of the world financial, credit, commodities and stock markets, any difficulties, delays or failure in, or unanticipated costs of, realizing the expected synergies of the LaBarge acquisition, and uncertainties regarding the Company, its businesses and the industries in which it operates, which are described in the Company’s filings with the Securities and Exchange Commission. The Company is under no obligation to (and expressly disclaims any such obligation to) update or alter its forward-looking statements whether as a result of new information, future events or otherwise.

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