Cook County Sales Tax Revenue Bonds

Notice to Recipient SEAL COOK ANUARY 18:31 KCO SILL Disclaimer This electronic Investor Presentation dated as of August 1, 2022, (this "Investor Presentation") you are about to view is being provided by the Underwriters as supplemental marketing materials in connection with the proposed offering by The County of Cook, Illinois (the "Issuer") of its $215,475,000* Sales Tax Revenue Bonds, Series 2022A (the "Series 2022A Bonds") and Sales Tax Revenue Bonds, Refunding Series 2022B (the "Series 2022B Bonds"), collectively the "Series 2022 Bonds." All market prices, financial data, and other information provided in this Investor Presentation are not warranted as to completeness or accuracy and are subject to change without notice. If you are viewing this Investor Presentation after the date stated above, there may have been subsequent events that could have a material adverse effect on the information that is presented in this Investor Presentation. Neither the Issuer nor the Underwriters have undertaken any obligation to update this Investor Presentation. This Investor Presentation is provided for your information and convenience only. Any investment decisions regarding the Series 2022 Bonds should only be made after a careful review of the complete Preliminary Official Statement, dated August 1, 2022. By accessing this Investor Presentation, you agree not to duplicate, copy, download, screen capture, electronically store or record this Investor Presentation, or to produce, publish or distribute this Investor Presentation in any form whatsoever. This Investor Presentation does not constitute a recommendation or an offer or solicitation for the purchase or sale of any security or other financial instrument, including the Series 2022 Bonds, or to adopt any investment strategy. Any offer or solicitation with respect to the Series 2022 Bonds will be made solely by means of the Preliminary Official Statement and Official Statement, which describe the actual terms of such Series 2022 Bonds. In no event shall the Underwriters or the Issuer be liable for any use by any party of, for any decision made or action taken by any party in reliance upon, or for any inaccuracies or errors in, or omissions from, the information contained in this Investor Presentation and such information may not be relied upon by you in evaluating the merits of participating in any transaction mentioned in this Investor Presentation. Neither the Underwriters nor the Issuer make any representation or warranty as to (i) accuracy, adequacy or completeness of any information in this Investor Presentation or (ii) the legal, tax, credit or accounting treatment of any purchase of the Series 2022 Bonds by you or any other effects such purchase may have on you and your affiliates or any other parties to such transactions and their respective affiliates. The information contained in this Investor Presentation has been compiled by the Underwriters from sources believed to be reliable, however neither the Issuer nor the Underwriters shall have any liability whatsoever (in negligence or otherwise) to any person for any loss arising from this Investor Presentation or any information supplied in connection therewith. This Investor Presentation contains "forward-looking" statements that involve risks, uncertainties and assumptions. If the risks or uncertainties ever materialize or the assumptions prove incorrect, the results may differ materially from those expressed or implied by such forward-looking statements. Accordingly, the Underwriters caution you not to place undue reliance on these statements. All statements other than the statements of historical fact could be deemed forward-looking. All opinions, estimates, projections, forecasts and valuations are preliminary, indicative and are subject to change without notice. Any investment decision regarding the Series 2022 Bonds should only be made after a careful review of the complete Preliminary Official Statement, including the appendices thereto. You will be responsible for consulting with your own advisors and making your own independent investigation and appraisal of the risks, benefits, appropriateness and suitability of the proposed transaction and any other transactions contemplated by this Investor Presentation and neither the Issuer nor any Underwriter is making any recommendation (personal or otherwise) or giving any investment advice and will have no liability with respect thereto. Transactions involving the Series 2022 Bonds may not be suitable for all investors. You should consult with your own advisors as to the suitability of the Series 2022 Bonds for your particular circumstances. Nothing in this Investor Presentation constitutes a commitment by the Underwriters or any of their affiliates to enter into any transaction. No assurance can be given that any transaction mentioned in this Investor Presentation could in fact be executed. Past performance is not indicative of future returns, which will vary. Clients should contact their salesperson at, and execute transactions through, an entity of the Underwriters or other syndicate member entity qualified in their home jurisdiction unless governing law permits otherwise. By viewing this Investor Presentation, you acknowledge that you understand and agree to the provisions of this page. * Preliminary and subject to change 2

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