Celanese Sues European Distributor Selling Ace-K Produced by Chinese Manufacturer for Patent Infringement


Celanese Corporation (NYSE: CE), a global technology and specialty
materials company, today announced that it has filed a patent
infringement lawsuit in Poland against Falken Trade Polska sp. z o.o.
sp.k., a distributor (Distributor) of Acesulfame Potassium (Ace-K), a
high-potency sweetener subject to recently granted European Patent No. 2
861 569. The complaint alleges that the Distributor is selling
infringing Ace-K sweetener produced by a Chinese manufacturer. Celanese
claims compensation for damages caused by the sale of patent infringing

Prior to filing this lawsuit, Celanese had successfully obtained a
preliminary injunction against the Distributor preventing the
Distributor from continuing to sell infringing Ace-K sweetener.

In March 2017, Celanese announced that it had filed a patent
infringement lawsuit in Europe against three Chinese manufacturers of
high-potency sweeteners, specifically Acesulfame Potassium (Ace-K). The
complaint alleges that Suzhou Hope Technology Co., Ltd., Anhui Jinhe
Industrial Co., Ltd., and Vitasweet Co., Ltd., are infringing European
Patent No. 2 861 569 by continuing to unlawfully import infringing Ace-K
sweetener into Europe.

Celanese continues to invest in manufacturing and quality improvements
and is dedicated to robust research, development and customer support
for the Sunett® sweetener products manufactured by its patented
processes. The company will protect these investments to supply
customers with quality engineered products, and will vigorously defend
against unlawful manufacturing, importing, purchasing, selling and using
of its patented technology in the United States, Europe, China and

About Celanese

Celanese Corporation is a global technology leader in the production
of differentiated chemistry solutions and specialty materials used in
most major industries and consumer applications. Our two complementary
business cores, Acetyl Chain and Materials Solutions, use the full
breadth of Celanese’s global chemistry, technology and business
expertise to create value for our customers and the corporation. As we
partner with our customers to solve their most critical business needs,
we strive to make a positive impact on our communities and the world
through The Celanese Foundation. Based in Dallas, Celanese employs
approximately 7,500 employees worldwide and had 2016 net sales of $5.4
billion. For more information about Celanese and our product offerings,
or our blog at

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Corporation or its affiliates.

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Celanese Corporation
Investor Relations
Varshney, +1-972-443-3078
Relations – Global

W. Travis Jacobsen, +1-972-443-3750
Relations Asia (Shanghai)

Helen Zhang, +86 21 3861 9279
Relations Europe (Germany)

Jens Kurth, +49(0)69 45009 1574

Source: Celanese Corporation