Cabot Corporation to Expand Global Carbon Black Capacity by over 300,000 Metric Tons

Expansion includes an additional 160,000 metric tons of capacity at
manufacturing facility in Cilegon, Indonesia

BOSTON–(BUSINESS WIRE)–Cabot
Corporation (NYSE: CBT) announced the addition of significant
capacity to its worldwide network of carbon
black plants. Through the combination of a plant expansion,
operational improvements, and debottlenecking projects, Cabot is
expanding its global capacity by over 300,000 metric tons.

Bart Kalkstein, senior vice president and president, Reinforcement
Materials, said, ÔÇ£This program will allow Cabot to continue to serve the
growing needs of our customers worldwide with our industry-leading
carbon black products. With our plants operating at high utilization
levels, these investments will enable us to maintain our position as a
leader in the carbon black industry and to offer our customers the
security of reliable supply and availability of premium products that
they have come to expect from Cabot.ÔÇØ

Cabot will add approximately 160,000 metric tons of capacity through an
expansion at its facility in Cilegon,
Indonesia. The new capacity will serve the increasing carbon black
demand in Southeast Asia, which is growing at four to five percent per
year. Cabot anticipates that product from this expansion will be
available for sale starting in late 2020 or early 2021.

Jeff Zhu, president, Asia Pacific region, said, ÔÇ£Our tire and industrial
rubber customers are making significant investments in Southeast Asia,
and as their preferred partner, they are looking to us to provide the
raw materials for their new investments. We appreciate the support of
the Indonesian government who have been great partners since we began
operations in 1988. This capacity expansion clearly demonstrates our
ongoing commitment to delivering high quality products and services from
local supply sources.ÔÇØ

ÔÇ£Cabot has a long-standing presence in Indonesia and we are excited to
see them expand their footprint here through an investment with their
newest technology and continue to contribute to the countryÔÇÖs growing
economy,ÔÇØ said Tom Lembong, Chairman of the Indonesia Investment
Coordinating Board. ÔÇ£CabotÔÇÖs commitment is a great testament to the
companyÔÇÖs long-term success in Indonesia, and the Government of
Indonesia will support the realization of this project.ÔÇØ

In addition to the expansion at Cilegon, Cabot is investing
approximately $50 million in debottlenecking projects and operational
improvements across 18 of its carbon black facilities. This program will
provide an additional 150,000 metric tons of increased carbon black
capacity which will be available for tire, industrial rubber and
specialty carbon customers. To date, Cabot has completed approximately
one-third of this capacity expansion, with full completion expected by
2021. These investments will increase CabotÔÇÖs global carbon black
capacity to approximately 2.5 million metric tons.

Sean Keohane, president and chief executive officer, added, ÔÇ£Part of our
corporate strategy is to invest for growth in our core businesses. These
actions clearly showcase our commitment to be the partner of choice for
our customers, not only for today, but into the future. Adding this new
capital efficient capacity will provide a lever for growth for our
Reinforcement Materials and Performance Chemicals segments and
contribute to the execution of our corporate financial and strategic
objectives.ÔÇØ

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 companyÔÇÖs website
at: http://www.cabotcorp.com.

Safe Harbor Statement under the Private Securities Litigation Reform Act
of 1995: Statements in the press release regarding CabotÔÇÖs 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 ÔÇ£Risk FactorsÔÇØ in the
CompanyÔÇÖs Annual Report on Form 10-K.

Contacts

Cabot Corporation
Vanessa Craigie, 617-342-6015
Corporate
Communications
or
Steve Delahunt, 617-342-6180
Investor
Relations