Ceradyne, Inc. to Release First-Quarter Financial Results on Tuesday, April 26, 2011

   Ceradyne, Inc. (NASDAQ: CRDN) will release financial results for its first quarter ended March 31, 2011 before the market open on Tuesday, April 26, 2011. Management will also conduct a conference call to review the Company's financial results and the outlook for 2011.

Any investor or interested individual can listen to the teleconference, which is scheduled to begin at 8 a.m. PDT (11 a.m. EDT) on April 26. To participate in the teleconference, please call toll-free 800-949-2163 (or 719-325-2250 for international callers) approximately 10 minutes prior to the above start time and provide Passcode 7738791.

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 for 48 hours beginning at noon PDT on April 26. The playback can be accessed by calling 888-203-1112 (or 719-457-0820 for international callers) and providing Passcode 7738791.

Ceradyne develops, manufactures and markets advanced technical ceramic products and components for defense, industrial, automotive/diesel and commercial applications. In many high performance applications, products made of advanced technical ceramics meet specifications that similar products made of metals, plastics or traditional ceramics cannot achieve. Advanced technical ceramics can withstand extremely high temperatures, combine hardness with light weight, are highly resistant to corrosion and wear, and often have excellent electrical capabilities, special electronic properties and low friction characteristics. Additional information about the Company can be found at www.ceradyne.com.