Ceradyne, Inc. to Release First-Quarter Results on Tuesday, April 28, 2009

COSTA MESA, Calif.--Ceradyne, Inc. will release financial results for its first quarter ended March 31, 2009 before the market open on Tuesday, April 28, 2009. Management will also conduct a conference call to review the Company’s financial results and the outlook for 2009.

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 877-717-3046 (or 706-634-6364 for international callers) approximately 10 minutes prior to the above start time and provide Conference ID 96359101.

One may also listen to the teleconference live via the Internet at www.ceradyne.com or www.earnings.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 a.m. PDT on April 28 through 9 p.m. PDT on April 30, 2009. The playback can be accessed by calling 800-642-1687 (or 706-645-9291 for international callers) and providing Conference ID 96359101.