Dubai, June 24, 2010: Cabot Corporation (NYSE: CBT) has officially opened its black masterbatch manufacturing facility in the Jebel Ali Free Zone. The plant has an initial production capacity of 25,000 metric tons per year with provision to expand to 75,000 metric tons in the future. Production is scheduled to commence in August 2010.

The state-of-the-art manufacturing facility includes the latest environmental and manufacturing technologies to ensure production of high-quality black masterbatches. Laboratories, administration offices, production and packaging are all located within the building.

The Dubai plant allows Cabot to better meet increasing demand for masterbatch in the Middle East, Europe and Asia Pacific regions. In recent years the Middle East has become a major producer of polyolefins and downstream compounds, currently producing approximately one-fifth of the world's polyethylene (PE) and polypropylene (PP).

Cabot Vice President and General Manager for the Performance Segment, Sean Keohane, said, "Within the Middle East there is already a strong demand for polyethylene and polypropylene compounds for use in building infrastructure for water supply, electricity, and telecommunications projects. These are key applications for black masterbatch. This new site offers significant quality and service advantages to Middle East producers who are global exporters of compounds."

Senior Vice President of Global Sales at Jafza, Adil Al Zarouni said: "Cabot Corporation has demonstrated excellence as a global leader in performance materials and we hope the new facility will help the company to continue the pursuit of its vision and effectively reach out to more businesses and markets across GCC, the Middle East and Asia. We are very pleased to welcome Cabot to the Jafza community. This new move not only reflects the confidence the company has in Dubai and Jafza but also proves that Jafza is still one of the most favoured investment destinations for international companies looking to base themselves in the region."

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About Cabot Corporation
Established in 1882, Cabot Corporation is a global performance materials company headquartered in Boston, Massachusetts USA. The Company operates 37 manufacturing plants in 19 countries and employs approximately 4000 people. With advanced technologies and leading market positions in carbon black, fumed silica, inkjet colorants, capacitor materials, aerogels and cesium formate drilling fluids, the products that Cabot manufactures enable and improve customers products across a wide range of applications and industries.  Among its businesses, Cabot is a leading global manufacturer of black masterbatches and conductive compounds and operates three plants in Europe (Belgium and Italy), one in Asia (Hong Kong) and one in the Middle East (Dubai). All current masterbatch manufacturing facilities are ISO 9001:2008 accredited.

Contacts:                                                                                
Susannah Robinson
Director, Investor Relations                                                                                               
617-342-6129                                                                                               
Susannah_Robinson@cabot-corp.com       
                                                                                       
Gérard Romainville
gerard_romainville@cabot-corp.com
+32 16 39 24 00                                                                                               

Dubai Media Contact:                                                            
Adeti Changulani                                                                                               
World View Communications                                                                                                           
adeti.changulani@wvc.ae                                                                                               
+971 50 5548970

© Press Release 2010