NOVA Chemicals Responds to Canadian Federal Court'

NOVA Chemicals Corporation, 1000 Seventh Avenue S.W., Calgary, Alberta, Canada T2P 5L5 www.novachemicals.com | 403.750.3600 tel | 403.269.7410 fax

Calgary, Alberta (July 4, 2017) - NOVA Chemicals Corporation ("NOVA Chemicals") is disappointed in the Court's monetary award and believe it is over-inclusive relative to the term of Dow's patent and profits attributable to NOVA's accused SURPASS ^® resins.

The Canadian Court's decisions are inconsistent with the U.S. Court decision that held the corresponding Dow U.S. patents 5,847,053 and 6,111,023 to be invalid.

NOVA Chemicals plans to appeal the decisions.

This decision has no impact whatsoever on the availability of our SURPASS resins going forward.

About NOVA Chemicals NOVA Chemicals develops and manufactures chemicals and plastic resins that make everyday life safer, healthier and easier. Our employees work to ensure health, safety, security and environmental stewardship through our commitment to sustainability and Responsible Care ^® . NOVA Chemicals, headquartered in Calgary, Alberta, Canada, is wholly-owned ultimately by Mubadala Investment Company of the Emirate of Abu Dhabi, United Arab Emirates.

For more information visit: www.novachemicals.com

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For further information please contact:

Media Inquiries Mark Horner Director, Corporate Communications e-mail: mark.horner@novachem.com  

Investor Inquiries Patty Masry Leader, External Financial Reporting e-mail: patty.masry@novachem.com

The NOVA Chemicals logo is a registered trademark of NOVA Brands Ltd.; authorized use. SURPASS® is a registered trademark of NOVA Chemicals Corporation in Canada and of NOVA Chemicals (International) S.A. elsewhere; authorized use/utilisation autorisée. Responsible Care is a registered trademark of the Chemistry Industry Association of Canada