Neo Performance Materials Inc. — Capital/Financing Update 2021

Nov 9, 2021

Stikeman Elliott LLP Barristers & Solicitors 5300 Commerce Court West 199 Bay Street Toronto, ON Canada M5L 1B9

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Main: 416 869 5500 Fax: 416 947 0866 www.stikeman.com

November 9, 2021

By SEDAR

Alberta Securities Commission British Columbia Securities Commission Financial and Consumer Affairs Authority of Saskatchewan Financial and Consumer Services Commission (New Brunswick) Nova Scotia Securities Commission Office of the Superintendent of Securities (Prince Edward Island) Office of the Superintendent of Securities Service Newfoundland and Labrador Ontario Securities Commission The Manitoba Securities Commission

Dear Sirs/Mesdames:

Re: Short Form Prospectus of Neo Performance Materials Inc. (the “Issuer ”)

We refer you to the (final) short form prospectus of the Issuer dated November 9, 2021 (the “ Short Form Prospectus ”) relating to the public offering (the “ Offering ”) on a bought deal basis to purchasers in each of the provinces of Canada, except Quebec, of 4,547,000 common shares (the “ Common Shares ”, and the Common Shares offered under the Short Form Prospectus, the “ Offered Shares ”) of the Issuer (prior to giving effect to the exercise of the over-allotment option) at a price of $19.25 per Offered Share, including an offering from treasury by the Issuer, and a secondary offering held by OPPS NPM S.á.r.l.

We consent to being named in the Short Form Prospectus on page (ii) and under the heading “Legal Matters” .

We confirm that we have read the Short Form Prospectus and have no reason to believe that there are any misrepresentations in the information contained in the Short Form Prospectus that are within our knowledge as a result of the services we performed by us in connection with the Short Form Prospectus.

Yours truly,

(signed) “ Stikeman Elliott LLP ”