Huntsman : and Pursell Agri-Tech Named CPI’s 2021 Polyurethane Innovation Award Winner

THE WOODLANDS, Texas - A jointly developed technology by Huntsman and Pursell Agri-Tech has won the prestigious 2021 Polyurethane Innovation Award from The Center for the Polyurethanes Industry (CPI) of the American Chemistry Council (ACC). The award-winning technology, which is the result of a long-term collaboration between Huntsman's Polyurethanes business and Pursell Agri-Tech is PurActiveTM - a polyurethane-based, controlled-release fertilizer coating, made using Huntsman's RIMLINE^® polyurethane system.

PurActiveTM polyurethane-based, controlled-release fertilizer coating uses a unique combination of novel chemistry and processing techniques to address the agronomic needs of today's crop growers. By slowly releasing nutrients into the ground over time, this next-generation fertilizer coating technology can help enhance the nutrient-use of plants, increase yields and aid environmental pollution control - delivering substantial benefits at each step of the agricultural value chain. From a fertilizer production perspective, the system can also help improve manufacturing productivity.

"The Huntsman team is delighted to accept the 2021 Polyurethane Innovation Award," said Jan Buberl, Vice President Huntsman Polyurethanes Americas. "Years of planning and joint development have led to this moment, and it is a well-deserved accomplishment for both Huntsman and Pursell Agri-Tech. The development of PurActiveTM polyurethane-based, controlled-release fertilizer coating is set to have a positive impact on the world food crisis, which is a growing issue after the pandemic. We are excited about what this technology brings to the world and the magnitude of issues it can potentially solve."

Sustainability is at the forefront of the polyurethanes industry and this advanced controlled-release fertilizer coating shows the sector creating an innovation solution to a growing global issue. The end goal for crop growers worldwide is to ensure maximum yields through the efficient release of nutrients while reducing water runoff. The PurActiveTM polyurethane-based, controlled-release fertilizer coating is designed with that aim in mind, and is positively aligned with the UN's Sustainable Development Goals: Goal 2 (Zero Hunger) and Goal 14 (Life Below Water).

"We are thrilled that Pursell Agri-Tech and Huntsman have won the CPI Innovation Award," said Joe Brady, CFO of Pursell Agri-Tech. "We look forward to leveraging this innovative technology in partnership with Huntsman to create a positive impact on sustainable agriculture on a global basis."

About Pursell Agri-Tech:
To learn more about Pursell Agri-Tech please visit www.Fertilizer.com.

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Forward-Looking Statements:
Certain information in this release constitutes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These statements are based on management's current beliefs and expectations. The forward-looking statements in this release are subject to uncertainty and changes in circumstances and involve risks and uncertainties that may affect the company's operations, markets, products, services, prices and other factors as discussed under the caption "Risk Factors" in the Huntsman companies' filings with the U.S. Securities and Exchange Commission. Significant risks and uncertainties may relate to, but are not limited to, volatile global economic conditions, cyclical and volatile product markets, disruptions in production at manufacturing facilities, reorganization or restructuring of Huntsman's operations, including any delay of, or other negative developments affecting the ability to implement cost reductions, timing of proposed transactions, and manufacturing optimization improvements in Huntsman businesses and realize anticipated cost savings, and other financial, economic, competitive, environmental, political, legal, regulatory and technological factors. The company assumes no obligation to provide revisions to any forward-looking statements should circumstances change, except as otherwise required by applicable laws.

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Products may be toxic and require special precautions in handling. The user should obtain Safety Data Sheets from Huntsman Polyurethanes containing detailed information on toxicity, together with proper shipping, handling and storage procedures, and should comply with all applicable safety and environmental standards.

Hazards, toxicity and behaviour of the products may differ when used with other materials and are dependent on the manufacturing circumstances or other processes. Such hazards, toxicity and behaviour should be determined by the user and made known to handlers, processors and end users.

Huntsman Polyurethanes is an international business unit of Huntsman International LLC. Huntsman Polyurethanes trades through Huntsman affiliated companies in different countries such as Huntsman International LLC in the USA and Huntsman Holland BV in Western Europe.

Except where explicitly agreed otherwise, the sale of products referred to in this publication is subject to the general terms and conditions of sale of Huntsman International LLC or of its affiliated companies.

This presentation may contain copyrighted material, the use of which has not always been specifically authorized by the copyright owner. In accordance with Title 17 U.S.C. Section 107, the material in this presentation is being used for nonprofit educational purposes and will not be made available for distribution. ACC believes this constitutes a 'fair use' of any such copyrighted material as provided for in section 107 of the US Copyright Law. For more information, go to: http://www.copyright.gov/title17/92chap1.html#107. If copyrighted material from this presentation is further used for purposes that go beyond "fair use," permission from the copyright owner must be obtained.

RIMLINE^® is a registered trademark of Huntsman Corporation or an affiliate thereof in one or more, but not all, countries. PurActive™ is a trademark of Pursell Agri-Tech.

© Copyright 2021 Huntsman Corporation or an affiliate thereof. All rights reserved.

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Released October 8, 2021