Ceradyne, Inc. to Release First-Quarter 2005 Results on April 28, 2005

    Business Editors

    COSTA MESA, Calif.--(BUSINESS WIRE)--April 14, 2005--Ceradyne, Inc. (Nasdaq:CRDN) will release financial results for the first-quarter ended March 31, 2005, before the market open on Thursday, April 28, 2005. The Company will also hold a teleconference to review the Company's financial results and strategic outlook.
    Any investor or interested individual can listen to the teleconference, which is scheduled to begin at 8:00 a.m. PDT (11:00 a.m. EDT) on April 28. To participate in the teleconference, please call toll-free 877-869-7690 (or 706-758-0239 for international callers) approximately 10 minutes prior to the above start time.
    You may also listen to the teleconference live via the Internet at www.ceradyne.com or www.FullDisclosure.com. For those unable to attend, these web sites will host an archive of the call.
    A telephone playback will be available beginning at 11:30 a.m. PDT on April 28 through midnight on April 30, 2005. The playback can be accessed by calling 800-642-1687 (or 706-645-9291 for international callers) and providing Conference ID 5585285.
    Ceradyne develops, manufactures and markets advanced technical ceramic products and components for defense, industrial, automotive/diesel and commercial applications. Additional information about the Company can be found at www.ceradyne.com.

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CONTACT: Ceradyne, Inc. Jerrold J. Pellizzon, 714-549-0421 x 262 or Silverman Heller Associates Dan Matsui / Gene Heller, 310-208-2550

KEYWORD: CALIFORNIA INDUSTRY KEYWORD: CHEMICALS/PLASTICS AEROSPACE/DEFENSE GOVERNMENT MANUFACTURING MINING/METALS EARNINGS CONFERENCE CALLS SOURCE: Ceradyne, Inc.

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