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16 Apr 18
Patent Re-examination Board of SIPO upholds Huntsman’s Patents

Singapore, April 16, 2018 - Huntsman Corporation (NYSE: HUN) is pleased to announce that the Patent Re-examination Board of the State Intellectual Property Office, China (PRB) upheld Huntsman’s Chinese Patents Nos. ZL00106403.7 and ZL200480003051.4.  These patents were contested by Shaoxing Bangyi Chemical Co., Ltd. and Taixing Jinyun Dyestuff Co., Ltd. By its ruling, the PRB rejected the positions of the petitioners and confirmed that Huntsman’s patented technology, which is used in Huntsman’s NOVACRON® Super Black G and NOVACRON® Super Black R dyes, is Huntsman’s valuable innovation for producing deep black shades.

Huntsman sued Jiangsu Jinji Industrial Co., Ltd. and Taixing Jinyun Dyestuff Co., Ltd. for infringing the above mentioned Chinese Patents at the Beijing Intellectual Property Court by using Huntsman’s patented technology in six black dyestuff products. Huntsman is seeking substantial damages and an injunction against further infringement.  Huntsman is also seeking substantial damages and an injunction against further infringement in a separate lawsuit against Zhejiang Longsheng Group Co., Ltd., Zhejiang Keyong Chemical Co., Ltd., and Shanghai Colva Dyestuff Industry Co., Ltd. This matter is currently being heard before the High People's Court, Shanghai.  In earlier decisions, both t he Shanghai Intermediate People’s Court and the Shanghai High People’s Court ruled that Shanghai Colva Dyestuff Industry Co., Ltd. had infringed Huntsman’s Chinese Patent No. ZL00106403.7 by manufacturing and selling Colvazol Super Black LC-G and Colvazol Super Black LC-R dyes.

Rohit Aggarwal, President of Huntsman Textile Effects said: “We are very pleased with the PRB’s decision which demonstrates the State Intellectual Property Office’s commitment to steadfastly uphold intellectual property rights in China which protect valuable and advanced technology. This encourages companies like Huntsman to continue to invest in research and development in our aim to bring cutting-edge innovation to the textile industry. Huntsman will vigorously pursue those who are infringing our intellectual property rights to stop the unlawful infringement and pursue full compensation for our losses”.

NOVACRON® is a registered trademark of Huntsman Corporation or an affiliate thereof in one or more, but not all, countries.

© Copyright 2017. Huntsman Corporation. All rights reserved.




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About Huntsman:

Huntsman Corporation is a publicly traded global manufacturer and marketer of differentiated chemicals with 2017 revenues of approximately $8 billion. Our chemical products number in the thousands and are sold worldwide to manufacturers serving a broad and diverse range of consumer and industrial end markets. We operate more than 75 manufacturing and R&D facilities in approximately 30 countries and employ approximately 10 ,000 associates within our 4 distinct business divisions. For more information about Huntsman, please visit the company's website at



About Huntsman Textile Effects:

Huntsman Textile Effects is the leading global provider of high quality dyes and chemicals to the textile and related industries. With operations in more than 90 countries and six primary manufacturing facilities in six countries (China, Germany, India, Indonesia, Mexico and Thailand), Huntsman Textile Effects is uniquely positioned to prov ide prompt and expert technical service wherever our customers are based. Sustainability, innovation and collaboration are at the heart of what we do. We use cutting edge technology to develop solutions and create innovative products with intelligent effects such as durable water repellents, color fastness, sun protection or state-of-the-art dyes which reduce water and energy consumption. For more information about Huntsman Textile Effects, please visit

Forward Looking Statements:

Statements in this release that are not historical are forward-looking statements. 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 in the Huntsman companies’ filings with the U.S. Securities and Exchange Commission. Significant risks and uncertainties may relate to, but are n ot limited to, financial, economic, competitive, environmental, political, legal, regulatory and technological factors. In addition, the completion of any transactions described in this release is subject to a number of uncertainties and closing will be subject to approvals and other customary conditions. Accordingly, there can be no assurance that such transactions will be completed or that the company’s expectations will be realized. 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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