Celanese Signs Memorandum of Understanding to Cooperate with PetroChina to Develop Synthetic Fuel Ethanol Opportunities in

  Celanese Signs Memorandum of Understanding to Cooperate with PetroChina to
  Develop Synthetic Fuel Ethanol Opportunities in China

Business Wire

BEIJING & DALLAS -- August 21, 2013

Celanese Far East Limited, a wholly owned subsidiary of the global technology
and specialty materials company Celanese Corporation (NYSE:CE), today
announced that it has entered into a Memorandum of Understanding to advance
the development of synthetic fuel ethanol with PetroChina Company Limited
(PetroChina), the largest oil and gas producer and distributor in China. Under
this arrangement, the two companies will collaborate to jointly develop
synthetic fuel ethanol opportunities in the People’s Republic of China
utilizing Celanese’s proprietary TCX® ethanol process technology.

“We are very pleased to cooperate with PetroChina to explore the growing fuel
ethanol market in China and look forward to working closely with all
stakeholders in China to bring to bear the benefits of Celanese TCX®
technology,” said Jay Townsend, senior vice president, business strategy &
development and procurement. “We are confident that the advantages of ethanol
produced from TCX® will help facilitate improvements in fuel and air quality,
control pollutants and to develop new sources of clean liquid transportation
fuel utilizing China’s abundant local resources.”

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. With sales almost equally divided
between North America, Europe and Asia, the company uses the full breadth of
its global chemistry, technology and business expertise to create value for
customers and the corporation. Celanese partners with customers to solve their
most critical needs while making a positive impact on its communities and the
world. Based in Dallas, Texas, Celanese employs approximately 7,600 employees
worldwide and had 2012 net sales of $6.4 billion. For more information about
Celanese Corporation and its product offerings, visit www.celanese.com or our
blog at www.celaneseblog.com.

About Celanese TCX^® Technology

Celanese TCX^® Technology, an innovative ethanol production process, helps
countries that seek diverse, secure transportation fuel meet their growing
needs by converting domestic natural gas and coal feedstocks to liquid fuel.
For more information, visit www.celanesetcx.com.

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Investor Relations
Jon Puckett, +1 972-443-4965
Telefax: +1 972-443-8519
Media Relations
Travis Jacobsen, +1 972-443-3750
Telefax: +1 972-443-8519
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