Cabot Corporation to Announce Fourth Quarter and Full Year 2006 Results

October 13, 2006

BOSTON, Oct. 13 /PRNewswire-FirstCall/ -- Cabot Corporation (NYSE: CBT) announced today that it will release financial results for the fourth quarter and full year fiscal 2006 on Wednesday, November 1, 2006 after the market closes. The Company will host a conference call and live webcast to review the fourth quarter and full year results beginning at 2:00 PM (ET) on Thursday, November 2, 2006.

(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 (http://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) 342-6244


SOURCE  Cabot Corporation
    -0-                             10/13/2006
    /CONTACT:  Investor Relations, +1-617-342-6244/
    /Photo:  NewsCom:  http://www.newscom.com/cgi-bin/prnh/20000323/CABOTLOGO
             AP Archive:  http://photoarchive.ap.org
             PRN Photo Desk, photodesk@prnewswire.com /
    /Web site:  http://www.cabot-corp.com /
    (CBT)

CO:  Cabot Corporation
ST:  Massachusetts
IN:  CHM
SU:  CCA MAV

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