Cabot Corporation to Announce Fourth Quarter and Full Year 2007 Results

October 3, 2007

BOSTON, Oct. 3 /PRNewswire-FirstCall/ -- Cabot Corporation (NYSE: CBT) announced today that it will release financial results for the fourth quarter and full fiscal year 2007 on October 31, 2007 after the market closes. The Company will host a conference call and live webcast to review the results beginning at 2:00 pm (ET) on November 1, 2007.

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

The call is being webcast by Thomson/CCBN and may be accessed at Cabot's web site at http://investor.cabot-corp.com. The webcast is also being distributed through the Thomson StreetEvents Network. Institutional investors may access the call via Thomson StreetEvents (www.streetevents.com), a password-protected event management site.

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

About Cabot Corporation

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.

Contact: Investor Relations
(617) 342-6129

SOURCE Cabot Corporation

CONTACT:
Investor Relations, +1-617-342-6129
Web site: http://www.cabot-corp.com
http://investor.cabot-corp.com