Cabot Norit Activated Carbon Selected by the NYSDEC in the Town of Hoosick, New York for Use in Point of Entry Water Treatment System

NYSDEC to Leverage HYDRODARCO® 4000
Activated Carbon to Remove Perfluorooctanoic Acid (PFOA) Contamination
from Drinking Water

BOSTON–(BUSINESS WIRE)–Cabot
Corporation (NYSE: CBT), today announced that it has been selected
as the new activated carbon supplier for point-of-entry treatment
systems (POETS) for the Town of Hoosick, New York. The New York State
Department of Environmental Conservation (NYSDEC) has chosen Cabot’s HYDRODARCO®
4000 granular activated carbon, the leading activated carbon for the
removal of perfluorooctanoic acid (PFOA) contamination, to remove
harmful PFOA contamination from the Town’s private wells that supply
drinking water to residents and businesses.

Groundwater testing for toxic manufacturing chemicals, including PFOA,
was recently conducted in Hoosick Falls with oversight from the NYSDEC.
Arcadis, the engineering firm managing the POETS project, tested several
activated carbons from different suppliers and found that HYDRODARCO
4000 activated carbon was the most effective media at removing these
harmful pollutants during the expected lifetime of the POET systems.

“Cabot Norit Activated Carbon is a technology leader in global water
purification, and our HYDRODARCO 4000 activated carbon is optimized to
remove PFOA more efficiently and effectively than other activated
carbons available today,” said David Flannery, global marketing manager,
Water Purification Segment, Cabot Corporation. “Our activated carbon
products not only help towns like Hoosick provide their citizens with
safe, reliable drinking water in their homes, schools and businesses,
but they also meet the most stringent global requirements.”

PFOA and perfluorooctane sulfonate (PFOS), the two most commonly
recognized types of perfluoroalkyl substances, are manmade compounds
used in a variety of products such as plastics, firefighting foams,
water resistant fabrics and grease resistant coatings. Once in the
environment, these chemicals are persistent, toxic and pose risks to
human health. Recently, the U.S. Environmental Protection Agency
established a human health
advisory level (HAL) for the combined concentrations of PFOA and
PFOS at 70 parts per trillion in drinking water.

ABOUT CABOT NORIT ACTIVATED CARBON
Cabot Norit Activated
Carbon is a global leader in the research, development, manufacturing
and sale of high-performing activated carbon used in a growing range of
environmental, health, safety and industrial applications. Our activated
carbon products effectively remove pollutants, contaminants and other
impurities from water, air, food and beverages, pharmaceuticals and
more. These products are also used as colorants, carriers and catalysts
in industrial processes. In addition to our over 150 activated carbon
formulations, we also provide activated carbon solutions through on-site
equipment and services, including activated carbon injection systems,
mobile water filter units and carbon reactivation services.

ABOUT CABOT CORPORATION
Cabot Corporation (NYSE: CBT) is a
global specialty chemicals and performance materials company,
headquartered in Boston, Massachusetts. The company is a leading
provider of rubber
and specialty
carbons, activated
carbon, inkjet
colorants, cesium
formate drilling fluids, masterbatches
and conductive compounds, fumed
silica, and aerogel.
For more information on Cabot, please visit the company’s website
at: http://www.cabotcorp.com.

Safe Harbor Statement under the Private Securities Litigation Reform Act
of 1995: Statements in the press release regarding Cabot's business that
are not historical facts are forward looking statements that involve
risks and uncertainties. For a discussion of such risks and
uncertainties, which could cause actual results to differ from those
contained in the forward looking statements, see "Risk Factors" in the
Company's Annual Report on Form 10-K.

Contacts

Cabot Corporation
Vanessa Craigie, 617-342-6015
Corporate
Communications
or
Steve Delahunt, 617-342-6255
Investor
Relations