Neo Performance Materials Inc. — Proxy Solicitation & Information Statement 2025

May 26, 2025

NEO PERFORMANCE MATERIALS INC.

NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS

NOTICE IS HEREBY GIVEN that an annual general meeting (the “Meeting”) of holders (“Shareholders”) of common shares (“Common Shares”) of Neo Performance Materials Inc. (the “Company”) will be held at 40 King Street West, Suite 2400, Toronto, Ontario, on Thursday, June 26, 2025 at 4:00 p.m. (Toronto time) for the following purposes:

1. to receive the annual report and the financial statements for the year ended December 31, 2024 and the report of the auditors thereon;
2. to elect directors;
3. to re-appoint auditors and to authorize the directors to fix their remuneration; and
4. to transact such further and other business as may properly come before the Meeting or any adjournment(s) or postponement(s) thereof.

A form of proxy solicited by management of the Company in respect of the Meeting is enclosed herewith.

The Company strongly encourages registered Shareholders and proxyholders to vote using one of the methods described in the accompanying management information circular (the “Information Circular”). To facilitate shareholders attending the Meeting, the Meeting will be audio-cast live at 4:00 p.m. (Toronto time) on June 26, 2025 and can be accessed by conference call at (416) 945-7677 (Toronto local) or 1 (888) 699-1199 (North America toll free) or online by webcast at https://emportal.ink/3F8OjEK and indicate you are dialing into the Neo Annual General Shareholder Meeting. This call will be listen-only and shareholders will not be able to vote or speak at, or otherwise participate in the Meeting via the conference call.

Shareholders are requested to sign the enclosed form of proxy and return it in the envelope provided for that purpose. To be effective, the form of proxy must be received at the offices of Computershare Trust Company of Canada, 100 University Avenue, 8th Floor, Toronto, Ontario, Canada, M5J 2Y1 or via internet at www.investorvote.com or by telephone at the toll-free number printed on the form of proxy by not later than 4:00 p.m. (Toronto time) on Tuesday, June 24, 2025 or, if the Meeting is adjourned or postponed, not later than 48 hours, excluding Saturdays, Sundays or holidays, preceding the time of such adjourned or postponed Meeting, or in either case by such later date and time as the Board may determine in its sole discretion. The accompanying Information Circular provides additional information relating to the matters to be dealt with at the Meeting.

If you have any questions or need assistance voting your Common Shares, please contact the Company's proxy solicitation agent, Laurel Hill Advisory Group, by calling 1-877-452-7184 (toll free in North America), 1-416-304-0211 (outside North America) or by email at assistance@laurelhill.com.

DATED this 21st day of May, 2025.

By Order of the Board

/s/ “Claire M.C. Kennedy”

Chair of the Board of Directors