JAB Acquisition Corp I

We are a recently incorporated company that has conducted no operations and has generated no revenues. Until we complete our initial business combination, we will have no operations and will generate no operating revenues. In making your decision whether to invest in our securities, you should take into account not only the background of our management team, but also the special risks we face as a blank check company. This offering is not being conducted in compliance with Rule 419 promulgated under the Securities Act. Accordingly, you will not be entitled to protections normally afforded to investors in Rule 419 blank check offerings. Please see “Proposed Business — Comparison of This Offering to Those of Blank Check Companies Subject to Rule 419” for additional information concerning how Rule 419 blank check offerings differ from this offering. You should carefully consider these and the other risks set forth in the section entitled“Risk Factors” in this prospectus.

Summary of Risk Factors

An investment in our securities involves a high degree of risk. The occurrence of one or more of the events or circumstances described in the section titled“Risk Factors,” alone or in combination with other events or circumstances, may materially adversely affect our business, financial condition and operating results. In that event, the trading price of our securities could decline, and you could lose all or part of your investment. Such risks include, but are not limited to:

• We are a blank check company with no operating history and no revenues, and you have no basis on which to evaluate our ability to achieve our business objective.

• Our public shareholders may not be afforded an opportunity to vote on our proposed initial business combination, and even if we hold a vote, holders of our founder shares will participate in such vote, which means we may complete our initial business combination even though a majority of our public shareholders do not support such a combination.

• Your only opportunity to effect your investment decision regarding a potential business combination may be limited to the exercise of your right to redeem your shares from us for cash.

• Our sponsor will control the appointment of our board of directors until consummation of our initial business combination and will hold a substantial interest in us. As a result, it will appoint all of our directors prior to or in connection with the consummation of our initial business combination and may exert a substantial influence on actions requiring a shareholder vote, potentially in a manner that you do not support.

• If we seek shareholder approval of our initial business combination, our initial shareholders, the representative and management team have agreed to vote in favor of such initial business combination, regardless of how our public shareholders vote and, under certain circumstances, we may not need any public shares in addition to the founder shares to approve an initial business combination.

• We do not have a minimum net tangible asset requirement.

• The ability of our public shareholders to redeem their shares for cash may make our financial condition unattractive to potential business combination targets, which may make it difficult for us to enter into a business combination with a target.

• The ability of our public shareholders to redeem their shares for cash and the amount of deferred underwriting compensation may make our financial condition unattractive to potential business combination targets, which may make it difficult for us to enter into a business combination with a target.

• The ability of our public shareholders to exercise redemption rights with respect to a large number of our shares and the amount of deferred underwriting compensation may not allow us to complete the most desirable business combination or optimize our capital structure, and may substantially dilute your investment in us.

• The requirement that we complete our initial business combination within the completion window may give potential target businesses leverage over us in negotiating a business combination and may limit the time we have in which to conduct due diligence on potential business combination targets, in particular as we approach our dissolution deadline, which could undermine our ability to complete our initial business combination on terms that would produce value for our shareholders.

• If we seek shareholder approval of our initial business combination, our sponsor, initial shareholders, directors, officers, advisor and their affiliates may elect to purchase shares, public warrants or rights from public shareholders, which may influence a vote on a proposed business combination and reduce the public “float” of our Class A ordinary shares, public warrants or rights.

• You will not have any rights or interests in funds from the trust account, except under certain limited circumstances. Therefore, to liquidate your investment, you may be forced to sell your public shares, public warrants or rights, potentially at a loss.

• Nasdaq may delist our securities from trading on its exchange, which could limit investors’ ability to make transactions in our securities and subject us to additional trading restrictions.

• The nominal purchase price paid by our sponsor for the founder shares may result in significant dilution to the implied value of your public shares upon the consummation of our initial business combination, and our sponsor is likely to make a substantial profit on its investment in us in the event we consummate an initial business combination, even if the business combination causes the trading price of our ordinary shares to materially decline.

• The value of the founder shares following completion of our initial business combination is likely to be substantially higher than the nominal price paid for them, even if the trading price of our ordinary shares at such time is substantially less than $10.00 per share.

• You will not be entitled to protections normally afforded to investors of many other blank check companies.

• Past performance by our management team, our advisor and their respective affiliates, including investments and transactions in which they have participated and businesses with which they have been associated, may not be indicative of future performance of an investment in the company.

• We may be a passive foreign investment company, or “PFIC,” which could result in adverse United States federal income tax consequences to U.S. investors.

• To mitigate the risk that we might be deemed to be an investment company for purposes of the Investment Company Act, which risk increases the longer that we hold investments in the trust account, we may, at any time (based on our management team’s ongoing assessment of all factors related to our potential status under the Investment Company Act), instruct the trustee to liquidate the investments held in the trust account and instead to hold the funds in the trust account in cash or in an interest bearing demand deposit account until the earlier of the consummation of our initial business combination or our liquidation. As a result, following the liquidation of investments in the trust account, we would likely receive less interest on the funds held in the trust account, which would likely reduce the dollar amount our public shareholders would receive upon any redemption or liquidation;

• If we are deemed to be an investment company under the Investment Company Act, we may be required to institute burdensome compliance requirements and our activities may be restricted, which may make it difficult for us to complete our initial business combination.

• Changes in laws or regulations, or a failure to comply with any laws and regulations, may adversely affect our business, including our ability to negotiate and complete our initial business combination, and results of operations.

• Military or other conflicts in Ukraine, the Middle East or elsewhere may lead to increased volume and price volatility for publicly traded securities, or affect the operations or financial condition of potential target companies, which could make it more difficult for us to consummate an initial business combination.

• An investment in this offering may result in uncertain U.S. federal income tax consequences.

• The other risks and uncertainties discussed in “Risk Factors” and elsewhere in this prospectus.