FLEXIBLE SOLUTIONS INTERNATIONAL INC

The accompanying proxy is solicited by the Company’s directors for voting at the annual meeting of shareholders to be held on November 20, 2025, at 11:00 a.m. Eastern Time, and at any and all adjournments of such meeting. If the proxy is executed and returned, it will be voted at the meeting in accordance with any instructions, and if no specification is made, the proxy will be voted for the proposals set forth in the accompanying notice of the annual meeting of shareholders. Shareholders who execute proxies may revoke them at any time before they are voted, either by writing to the Company at the address shown above or in person at the time of the meeting. Additionally, any later dated proxy will revoke a previous proxy from the same shareholder. This proxy statement was posted on the Company’s website on or about September 30, 2025.

There is one class of capital stock outstanding. Provided a quorum consisting of 10% of the shares entitled to vote is present at the meeting, the affirmative vote of a majority of the shares of common stock voting in person or represented by proxy at the meeting is required to elect directors and to adopt the other proposals to come before the meeting. Cumulative voting in the election of directors is not permitted.

Shares of the Company’s common stock represented by properly executed proxies that reflect abstentions or “broker non-votes” will be counted as present for purposes of determining the presence of a quorum at the annual meeting. “Broker non-votes” represent shares held by brokerage firms in “street-name” with respect to which the broker has not received instructions from the customer or otherwise does not have discretionary voting authority. Abstentions and broker non-votes will not be counted as having voted against the proposals to be considered at the meeting.