Cabot Corporation Opens Specialty Fluids Regional Sales Office in Singapore

July 10, 2007

BOSTON, July 10, 2007 /PRNewswire-FirstCall via COMTEX News Network/ -- Cabot Corporation (NYSE: CBT) announced today that its Cabot Specialty Fluids business has established a regional sales office in Singapore. The new office allows Cabot to increase marketing initiatives to prospective customers in China as well as the South East Asia Pacific region, Australia and New Zealand. The new office is located at One Raffles Quay, North Tower Level 25, Singapore, 048583.

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The Singapore regional sales and marketing office is led by Alan Carnegie, regional manager, Cabot Specialty Fluids, with additional support from James Wang, business development manager, Cabot Specialty Fluids, Oil & Gas, Cabot (China) Ltd., based in Beijing, China.

Inquiries from oil companies located in Brunei, China, Indonesia, Vietnam and other countries developing new oil fields have increased with the successful use of cesium formate brines in high pressure, high temperature (HPHT) well construction in other parts of the world. "Cesium formate has been proven to be the most effective completion solution for HPHT wells," said James Turner, vice president and general manager, Cabot Specialty Fluids business. "It has consistently surpassed all other fluids in the field to solve hydraulics, well control and corrosion control issues as well as other HPHT challenges. We look forward to helping oil companies in China, the Asia Pacific region and Australia develop and expand their oil and gas production capabilities."

Cabot Specialty Fluids is the world's only significant producer of cesium formate brine. Since its introduction to the market in 1999, Cabot's cesium formate brine has been used with great success in more than 110 HPHT wells in the North Sea, Gulf of Mexico, Eastern Europe, and Argentina.

For additional information, contact Alan Carnegie, regional manager, Asia-Pacific, Cabot Specialty Fluids, Singapore at +65 6622-5520 or email: alan_carnegie@cabot-corp.com

About Cabot Corporation

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

Contact: Ethel Shepard
Corporate Affairs Manager
617-342-6254
ethel_shepard@cabot-corp.com

Susannah Robinson
Director, Investor Relations
617-342-6129

SOURCE Cabot Corporation