Ceradyne, Inc. to Webcast Presentation to Analysts and Institutional Investors

Ceradyne, Inc. (Nasdaq: CRDN) will webcast a presentation — entitled Ceradyne – The Global Path Forward — to be given to analysts and institutional investors in New York at 3:30 p.m. EST on January 11, 2010.

The presentation by Chief Executive Officer Joel P. Moskowitz and Chief Financial Officer Jerrold J. Pellizzon will address a variety of topics, including:

• Solar (photovoltaic) ceramic crucibles
• Aluminum smelting ceramic cathodes
• Bearings and other downhole ceramic products for oil and gas drilling
• Newly developed ceramic chemical microreactors and heat exchangers
• Newly introduced ClusterBoron® semiconductor ion implantation materials
• Nuclear containment products using our boron isotope 10B
• Defense products

One may listen to it live by accessing the Investor Relations page of Ceradyne’s website, www.ceradyne.com, where the presentation will be archived.

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.

Except for the historical information contained therein, Mr. Moskowitz’s presentation may contain forward-looking statements regarding future events and the future performance of Ceradyne that involve risks and uncertainties that could cause actual results to differ materially from those projected. Words such as “anticipates,” “believes,” “plans,” “expects,” “intends,” “future,” and similar expressions are intended to identify forward-looking statements. These risks and uncertainties are described in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2008 and its Quarterly Reports on Form 10-Q as filed with the U.S. Securities and Exchange Commission.