Investor FAQ

1.When was Ducommun Incorporated founded?
2.When did Ducommun go public?
3.What markets does Ducommun participate in?
4.What is the company’s fiscal year?
5.Does Ducommun pay dividends?
6.Does the company offer direct deposits or reinvestment of dividends programs?
7.Who is the company’s transfer agent and how may I change my address on the account?
8.How can I obtain information or documents on Ducommun Incorporated?
9.Whom can I contact if I need further information as a Ducommun Incorporated shareholder?
10.Who are Ducommun’s outside auditors?
1.When was Ducommun Incorporated founded?
 Ducommun was founded in 1849 as a sole proprietorship by Charles l. Ducommun and is the oldest company in the state of California. The company’s headquarters are located in Carson, California near Los Angeles. The company is incorporated in the state of Delaware.

2.When did Ducommun go public?
 Ducommun went public in 1946 and is currently traded on the New York Stock Exchange under the symbol “DCO”.

3.What markets does Ducommun participate in?
 Ducommun supplies components, assemblies and electromechanical products to the following markets: commercial and military aviation, medical and industrial automation.

4.What is the company’s fiscal year?
 Ducommun’s fiscal year ends December 31.

5.Does Ducommun pay dividends?
 No.

6.Does the company offer direct deposits or reinvestment of dividends programs?
 Ducommun does not offer such programs.

7.Who is the company’s transfer agent and how may I change my address on the account?
 Computershare, Inc.
P.O. Box 30170
College Station, TX 77842
800.522.6645 Toll-free
201.680.6578 International shareholders
800.952.9245 TDD for hearing impaired
www.computershare.com/investor

8.How can I obtain information or documents on Ducommun Incorporated?
 Ducommun’s documents are accessible on our website under SEC Filings. If you wish to receive a paper copy of an SEC document, please contact our investor relations department at 310-513-7211 or e-mail info@ducommun.com.

9.Whom can I contact if I need further information as a Ducommun Incorporated shareholder?
 You may contact Douglas L. Groves, Vice President, Chief Financial Officer & Treasurer at 310-513-7224 or by e-mail at info@ducommun.com.

10.Who are Ducommun’s outside auditors?
 PricewaterhouseCoopers LLP.