News Release Details

BOSTON – Oct. 1, 2026 – Effective for orders accepted on or after October 15, 2026, or as contracts allow, Cabot Corporation (NYSE: CBT) will increase prices globally for all Cabot aerogel grades and Thermal Wrap™ flexible insulation blankets. Price increases will be up to 10 percent, depending on product and region.

The price increase is necessitated by continued increases in manufacturing and logistics costs, including energy, transportation, waste gas disposal, wastewater treatment and packaging expenses. These market conditions have increased the cost of producing and supplying aerogel products and insulation solutions globally, requiring a corresponding price adjustment. The price adjustment will help ensure that Cabot remains a reliable, long-term supplier of high-quality aerogel products.

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 reinforcing carbons, specialty carbons, battery materials, engineered elastomer composites, inkjet colorants, masterbatches and conductive compounds, fumed metal oxides and aerogel. For more information on Cabot, please visit the company’s website at cabotcorp.com.

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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.

Contact:
Vanessa Craigie
Corporate Communications
Vanessa.craigie@cabotcorp.com
(617) 342-6015

Robert Rist
Investor Relations
robert.rist@cabotcorp.com
(617) 342-6374