Cabot Corporation to Host Analyst Day

BOSTON, May 9 /PRNewswire-FirstCall/ -- Cabot Corporation NYSE: CBT announced today that Patrick Prevost, President and CEO, and senior management will host an analyst day on Thursday, May 29, 2008.

(Logo: http://www.newscom.com/cgi-bin/prnh/20000323/CABOTLOGO )

Cabot's presentations and remarks will be webcast by Thomson beginning at approximately 8:00am (ET) and can be accessed at Cabot's website at http://investor.cabot-corp.com .

If you are unable to participate during the live webcast, the event and accompanying slide presentation will be archived on the Company's website at http://investor.cabot-corp.com .

Cabot Corporation is a global specialty chemicals and materials company headquartered in Boston, MA. Cabot's major products are carbon black, fumed silica, inkjet colorants, capacitor materials, and cesium formate drilling fluids. The Company's website is: http://www.cabot-corp.com .

Contact: Susannah Robinson

             Director, Investor Relations
             (617) 342-6129