Héroux-Devtek will hold a conference call to discuss its first quarter
results ended June 30, 2010

(TSX: HRX)

LONGUEUIL, QC, July 29 /CNW Telbec/ -

    
    OPEN TO:   Analysts, investors and all interested parties

    DATE:      Thursday, August 5, 2010

    TIME:      3:00 PM Eastern Time

    CALL:      647-427-7450 (FOR ALL TORONTO AND OVERSEAS PARTICIPANTS)
               1-866-865-3087 (FOR ALL OTHER NORTH AMERICAN CALLS)
    

THE PRESS RELEASE WILL BE PUBLISHED BEFORE MARKET OPENS THE DAY OF THE CONFERENCE CALL, THROUGH CNW.

Please dial-in 15 minutes before the conference call begins.

If you are unable to call-in at this time, you may access a tape recording of the meeting by calling 1-800-642-1687 and entering the passcode 87326524 on your phone. This tape recording will be available on Thursday, August 5, 2010 as of 5:00 PM until 23:59 PM on Thursday, August 12, 2010.

Complete unaudited interim consolidated financial statements and Management's Discussion & Analysis will be available on Héroux-Devtek's website: www.herouxdevtek.com.

Please note that the Annual General Meeting of Shareholders will be held on the same day at 11:00 AM in the Salon Pierre de Coubertin of the Omni Mont-Royal Hotel (1050 Sherbrooke Street West, Montréal, Québec).

MEDIA WISHING TO QUOTE AN ANALYST SHOULD CONTACT THE ANALYST PERSONALLY FOR PERMISSION.

NOTE TO FIRST-TIME ANALYSTS: Please contact MaisonBrison at [phone] prior to the day of the conference call.

Interested parties may also listen live at www.herouxdevtek.com or at www.newswire.ca.

For further information: Martin Goulet, MaisonBrison, [phone]