Aldel Financial Inc. Reminds Stockholders TO VOTE PRIOR TO The Special Meeting on December 1, 2021

Aldel Financial Inc. (NYSE:ADF) ("Aldel" or the "Company") today reminded stockholders that the virtual special meeting of the stockholders to consider and vote on Aldel's proposed business combination with The Hagerty Group, LLC ("Hagerty"), and related matters, is scheduled for Wednesday, December 1, 2021 at 10:00 a.m., Eastern Time.

PLEASE VOTE. YOUR VOTE COUNTS TOWARDS THE QUORUM REQUIREMENT TO HOLD THE MEETING. THE COMPANY CANNOT HOLD THE MEETING IF THE QUORUM REQUIREMENT IS NOT MET.

YOUR VOTE DOES NOT REQUIRE YOU TO REDEEM YOUR SHARES. WHETHER OR NOT YOU CHOOSE TO REDEEM YOUR SHARES, THE COMPANY IS ASKING YOU TO PLEASE VOTE.

Proxy Vote Notification

Every stockholder's vote is important, regardless of the number of shares you hold. Accordingly, Aldel requests that each stockholder either vote online, by telephone or complete, sign, date and return a proxy card if it has not already done so, to ensure that the stockholder's shares will be represented at the Meeting.

If you fail to return your proxy card or fail to instruct your bank, broker or other nominee how to vote, your shares will not be counted for purposes of determining whether a quorum is present at, and the number of votes voted at, the Meeting. Voting either "FOR" or "AGAINST" the proposals on the proxy card will not affect your right to redeem your shares.

Stockholders holding common stock at the close of business on November 9, 2021 are entitled to vote at the Meeting. Meeting materials, including the definitive proxy statement filed with the Securities and Exchange Commission (the "SEC") on November 10, 2021, along with a proxy card, were mailed on November 10, 2021, to stockholders of record as of November 9, 2021.

If you have not received a copy of the meeting materials, or need assistance with voting your shares, please contact Alliance Advisors at 855-928-4486 or by email at [email protected].

Redemption Election Notification

Any public stockholder who holds shares of Aldel on or before November 29, 2021 will have the right to demand that their shares be redeemed for a pro rata share of the aggregate amount then on deposit in the Trust Account, less any taxes then due but not yet paid, at the consummation of the business combination.

You should have received notification from your broker asking you to either accept or decline the redemption offer. If you wish to continue to hold your shares after the closing of the business combination, and continue as a shareholder of Hagerty, Inc., you should decline or disregard the redemption offer. If you do not wish to continue to hold your shares as a shareholder of Hagerty, Inc. after the business combination, you should accept the redemption offer.

Important Information and Where To Find It

Aldel Financial Inc. ("Aldel") has entered into that certain Business Combination Agreement, dated as of August 17, 2021 (the "Business Combination Agreement"), by and among Aldel, Aldel Merger Sub LLC, a Delaware limited liability company and wholly owned subsidiary of Aldel ("Merger Sub"), and The Hagerty Group, LLC, a Delaware limited liability company ("Hagerty"), pursuant to which: (a) all of the outstanding equity interests of Hagerty will be exchanged for shares of Class V Common Stock and OpCo Units; (b) Merger Sub will be merged with and into Hagerty (the "Merger"), whereupon the separate limited liability company existence of Merger Sub shall cease and Hagerty shall be the surviving company (Hagerty following the Merger is sometimes hereinafter referred to as the "OpCo") and continue its existence under the Delaware Limited Liability Company Act (the "LLC Act"); (c) the existing limited liability company agreement of Hagerty will be amended and restated in the form attached to the Business Combination Agreement, to, among other things, make Aldel a member of the OpCo; and (d) Aldel will change its name to Hagerty, Inc.("New Hagerty") (the Merger and the other transactions contemplated by the Business Combination Agreement are collectively referred to as the "Business Combination"). In connection with the proposed Business Combination, Aldel has filed with the SEC and has mailed the definitive proxy statement and a proxy card to each stockholder entitled to vote at the Special Meeting relating to the transaction. INVESTORS AND STOCKHOLDERS OF ALDEL ARE URGED TO READ THESE MATERIALS (INCLUDING ANY AMENDMENTS OR SUPPLEMENTS THERETO) AND ANY OTHER RELEVANT DOCUMENTS IN CONNECTION WITH THE TRANSACTION THAT ALDEL WILL FILE WITH THE SEC WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT ALDEL, HAGERTY AND THE BUSINESS COMBINATION. The definitive proxy statement and other relevant materials in connection with the transaction (when they become available), and any other documents filed by Aldel with the SEC, may be obtained free of charge at the SEC's website (www.sec.gov) or by directing a request to: Aldel Financial Inc., 105 S. Maple Street, Itasca, Illinois 60143.

Participants in the Solicitation

Aldel and its directors and executive officers may be deemed participants in the solicitation of proxies from Aldel's stockholders with respect to the Business Combination. A list of the names of those directors and executive officers and a description of their interests in Aldel is included in the proxy statement for the proposed Business Combination and is available at www.sec.gov. Additional information regarding the interests of such participants is contained in the proxy statement for the proposed Business Combination. Information about Aldel's directors and executive officers and their ownership of Aldel common stock is set forth in Aldel's prospectus, dated April 12, 2021, as modified or supplemented by any Form 3 or Form 4 filed with the SEC since the date of such filing. Other information regarding the interests of the participants in the proxy solicitation is included in the proxy statement pertaining to the proposed Business Combination. These documents can be obtained free of charge from the sources indicated above.

Hagerty and its directors and executive officers may also be deemed to be participants in the solicitation of proxies from the stockholders of Aldel in connection with the proposed Business Combination. A list of the names of such directors and executive officers and information regarding their interests in the proposed Business Combination is included in the proxy statement for the proposed Business Combination.

Forward-Looking Statements

This communication contains certain "forward-looking statements" within the meaning of "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements can be identified by words such as: "target," "believe," "expect," "will," "shall," "may," "anticipate," "estimate," "would," "positioned," "future," "forecast," "intend," "plan," "project," "outlook" and other similar expressions that predict or indicate future events or trends or that are not statements of historical matters. Examples of forward-looking statements include, among others, statements made in this communication regarding the proposed transactions contemplated by the Business Combination Agreement and the Subscription Agreements, including the benefits of the Business Combination, integration plans, expected synergies and revenue opportunities, anticipated future financial and operating performance and results, including estimates for growth, the expected management and governance of the combined company, and the expected timing of the Business Combination. Forward-looking statements are neither historical facts nor assurances of future performance. Instead, they are based only on Aldel's and Hagerty's managements' current beliefs, expectations and assumptions. Because forward-looking statements relate to the future, they are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict and many of which are outside of our control. Actual results and outcomes may differ materially from those indicated in the forward-looking statements. Therefore, you should not rely on any of these forward-looking statements. Important factors that could cause actual results and outcomes to differ materially from those indicated in the forward-looking statements include, among others, the following: (1) the occurrence of any event, change, or other circumstances that could give rise to the termination of the Business Combination Agreement; (2) the outcome of any legal proceedings that may be instituted against Aldel or Hagerty following the announcement of the Business Combination Agreement and the transactions contemplated therein; (3) the inability to complete the proposed Business Combination, including due to failure to obtain approval of the stockholders of Aldel and Hagerty, certain regulatory approvals, or satisfy other conditions to closing in the Business Combination Agreement; (4) the occurrence of any event, change, or other circumstance that could give rise to the termination of the Business Combination Agreement or could otherwise cause the transaction to fail to close; (5) the failure to meet the minimum cash requirements of the Business Combination Agreement due to Aldel stockholder redemptions and the failure to obtain replacement financing; (6) the inability to complete the concurrent PIPE; (7) the failure to meet projected development and production targets; (8) the impact of COVID-19 pandemic on Hagerty's business and/or the ability of the parties to complete the proposed Business Combination; (9) the inability to obtain or maintain the listing of Aldel's shares of common stock on The New York Stock Exchange following the proposed Business Combination; (10) the risk that the proposed Business Combination disrupts current plans and operations as a result of the announcement and consummation of the proposed Business Combination; (11) the ability to recognize the anticipated benefits of the proposed Business Combination, which may be affected by, among other things, competition, the ability of Hagerty to grow and manage growth profitably, and retain its key employees; (12) costs related to the proposed Business Combination; (13) changes in applicable laws or regulations; (14) the possibility that Aldel or Hagerty may be adversely affected by other economic, business, and/or competitive factors; (15) risks relating to the uncertainty of the projected financial information with respect to Hagerty; (16) risks related to the organic and inorganic growth of Hagerty's business and the timing of expected business milestones; (17) the amount of redemption requests made by Aldel's stockholders; and (18) other risks and uncertainties indicated from time to time in the final prospectus of Aldel for its initial public offering dated April 12, 2021 filed with the SEC and the definitive proxy statement relating to the proposed Business Combination, including those under "Risk Factors" therein, and in Aldel's other filings with the SEC. Aldel cautions that the foregoing list of factors is not exclusive. Aldel and Hagerty caution readers not to place undue reliance upon any forward-looking statements, which speak only as of the date made. Aldel and Hagerty do not undertake or accept any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements to reflect any change in their expectations or any change in events, conditions, or circumstances on which any such statement is based, whether as a result of new information, future events, or otherwise, except as may be required by applicable law. Neither Hagerty nor Aldel gives any assurance that either Hagerty or Aldel, or the combined company, will achieve its expectations.

No Solicitation

This communication does not constitute the solicitation of a proxy, consent or authorization with respect to the Business Combination. This communication shall not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any states or jurisdictions in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act, or an exemption therefrom.

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