H.C. Starck and Cabot announce patent cross-license agreement

January 11, 2011

BOSTON, Jan 11, 2011 (BUSINESS WIRE) -- H.C. Starck and Cabot Corporation (NYSE: CBT) have signed a broad, non-exclusive worldwide patent cross-license agreement allowing mutual access to tantalum and niobium powder technology portions of their respective patent portfolios. This agreement enables each company to independently focus efforts and resources on product innovation and development in vigorous competition.

H.C. Starck and Cabot Supermetals have independently built strong patent portfolios through intense R&D efforts on a wide range of powder technologies, in particular of metals, alloys, and oxides based on tantalum and niobium.

Further details of the agreement were not disclosed.

About H.C. Starck

The H.C. Starck Group is a leading global supplier of refractory metals and technical ceramics, and serves growing industries such as the electronics, chemicals, automotive, medical technology, aerospace, energy technology, and environmental technology industries, as well as mechanical engineering and tool manufacturers. H.C. Starck has its own manufacturing facilities located in Europe, America, and Asia, and has close to 3,000 employees worldwide. This and further news is available at: www.hcstarck.com/press.

About Cabot Corporation

Cabot is a global specialty chemicals and performance materials company headquartered in Boston, MA. The Company's major products are carbon black, fumed silica, inkjet colorants, capacitor materials, and cesium formate drilling fluids. Cabot operates 39 manufacturing facilities in 21 countries worldwide. The Company's website is: www.cabot-corp.com.

SOURCE: Cabot Corporation

H.C. Starck Group:
Ulrike Reich, +49 5321 751 3450
Director, Corporate Communications
or
Cabot Corporation:
Susannah Robinson, 617-342-6129
Director, Investor Relations