Date: 01 DEC 2017, 12.30pm CET

Avantium N.V., (Euronext Amsterdam and Brussels: AVTX) (“Avantium” or “the Company”) a leading chemical technology company and forerunner in renewable chemistry, announces that today Mr. Kees Verhaar has been appointed as Chairman of Avantium’s Supervisory Board.

At an extraordinary shareholders meeting on November 30, 2017 Avantium’s shareholders unanimously endorsed the appointment of Kees Verhaar as a member of the Supervisory Board until the end of the annual general meeting in 2021. Subsequently the Supervisory Board appointed Mr. Verhaar as its Chairman, succeeding Mr. Jan van der Eijk. Mr. van der Eijk will continue in his role as Chairman of the Supervisory Board of Synvina, the Joint Venture of Avantium and BASF.

Kees Verhaar’s has a wealth of experience as CEO of Arizona Chemicals, the world leading wood-based chemicals company and his 30-year track record in the chemical industry, which includes extensive collaboration with sophisticated financial investors. Kees Verhaar is currently chairman of the advisory board of three business units of Ten Cate, an international advanced materials company.

“We are very proud to have Kees Verhaar strengthening Avantium as Chairman of the Supervisory Board. He brings a wealth of experience in the chemicals and renewables industries,” says Tom van Aken, CEO of Avantium. “Following our successful IPO in March 2017, Avantium has advanced to the next phase of commercialization. Kees’ broad experience and expertise are very valuable to support Avantium in building a winning renewable chemistry company.”

We would like to thank our former Chairman, Jan van der Eijk, for his dedication, strategic guidance and continuous support in his role of Chairman of Avantium. We look forward to continue working with him in his role as Chairman of the Supervisory Board of Synvina.”

About Avantium

Avantium is a leading chemical technology company and a forerunner in renewable chemistry. Together with its partners around the world, Avantium develops efficient processes and sustainable products made from biobased materials. Avantium offers a breeding ground for revolutionary renewable chemistry solutions from invention to commercially viable production processes.

One of Avantium’s success stories is YXY Technology, with which it created PEF: a completely new, high-quality plastic made from plant-based industrial sugars. Since October 2016 all YXY activities have been transferred to Synvina, the joint venture of Avantium and BASF.

Avantium is also working on a host of other groundbreaking projects such as the Zambezi Technology; a biorefinery technology to produce sugars for the production of chemicals and fuels from non-food materials. The proprietary process is highly feedstock-flexible allowing use of forestry residues (e.g. woodchips), corn stover, bagasse and produces a high purity 2G glucose product and lignin for energy and other applications. Avantium also provides advanced catalysis research services and systems to the leading chemical and petrochemical companies.

Avantium shares are listed on Euronext Amsterdam and Euronext Brussels (symbol: AVTX), its offices and headquarters are based in Amsterdam, the Netherlands. Over 140 highly skilled colleagues representing more than 20 nationalities, Avantium fosters a dynamic and enthusiastic workplace that is constantly seeking new ways to improve and expand the impact of advanced catalytic research & technology.

MEDIA CONTACT

For more information:

Dominique Levant

Marketing & Communications Officer

T: +31 20 586 01 32

E: dominique.levant@avantium.com

www.avantium.com

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