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ATK President and Chief Executive Officer Mark DeYoung to Speak at Cowen & Company's 32nd Annual Aerospace & Defense Conference

MINNEAPOLIS, Feb. 4, 2011 /PRNewswire/ -- ATK (NYSE: ATK) will webcast the remarks of its President and Chief Executive Officer, Mr. Mark DeYoung, when he appears at the Cowen & Company's 32nd Annual Aerospace & Defense Conference on Wednesday, February 9, 2011 in New York, NY. Mr. DeYoung is scheduled to provide formal comments to the conference attendees beginning at 10:35am (EST).

Access to the audio-only webcast will be available at: http://www.atk.com/InvestorRelations/investrelate_investorinfo.asp. A replay of the webcast will be available on the company's website within 24 hours after the presentation and will remain on the site for 180 days.

ATK is an aerospace, defense, and commercial products company with operations in 24 states, Puerto Rico, and internationally, and revenues of approximately $4.8 billion. News and information can be found on the Internet at www.atk.com.

    Media Contact:                  Investor Contact:

    Bryce Hallowell                 Jeff Huebschen
    Phone:  952-351-3087            Phone:  952-351-2929
    E-mail:
     bryce.hallowell@atk.com        E-mail:  jeff.huebschen@atk.com

SOURCE ATK