BlackRock Municipal Income Fund, Inc. (NYSE:MUI, the "Fund")) is providing additional information related to the Fund's upcoming conversion from an exchange-listed closed-end fund to an unlisted continuously-offered closed-end fund that conducts quarterly repurchases of its shares (the "Conversion") and will operate under the name BlackRock Municipal Credit Alpha Portfolio, Inc. (the "Interval Fund"). It is currently anticipated that the Conversion will take place after the close of business on March 21, 2025, and be effective on March 24, 2025 (the "Conversion Date").

Delisting From the New York Stock Exchange

In connection with the Conversion, the Fund intends to delist its shares of common stock ("MUI Shares") from the New York Stock Exchange effective as of the close of business on February 14, 2025 (the "Delisting Date"). Please note that, effective as of the Delisting Date, the MUI Shares will no longer trade on the NYSE or any other securities exchange. The Conversion Date and the Delisting Date are subject to change. Any such changes will be announced via press release.

Conversion and First Periodic Repurchase

MUI Shares held on the Conversion Date will be redesignated as Institutional Shares of the Interval Fund ("Interval Fund Shares"). The Interval Fund Shares will not be listed for trading on any securities exchange and a secondary market is not expected to develop for the Interval Fund Shares. As a result, an investment in the Interval Fund is not a liquid investment. Shareholders will generally only be able to sell their Interval Fund Shares through the Interval Fund's quarterly offers to repurchase between 5% and 25% of the outstanding Interval Fund Shares. The Interval Fund currently intends to commence the initial repurchase offer in the second quarter of 2025.

Although the Interval Fund intends to conduct quarterly repurchase offers, such repurchase offers may be oversubscribed. If a repurchase offer is oversubscribed, the Interval Fund will repurchase the shares tendered on a pro rata basis, and shareholders will have to wait until the next repurchase offer to make another repurchase request. As a result, shareholders may be unable to liquidate all or a given percentage of their investment in the Interval Fund through a particular repurchase offer. Shareholders will be subject to the risk of NAV fluctuations and other investment-related risks during that period.

Important Notice to Shareholders Who Hold Shares Through a Financial Intermediary

Following the Conversion, the Interval Fund will offer one or more classes of shares through select financial intermediaries. Shareholders should be aware that not all financial intermediaries will offer to sell shares of the Interval Fund or support quarterly repurchase offers by the Interval Fund.

SHAREHOLDERS SHOULD CONTACT THEIR FINANCIAL INTERMEDIARY AS SOON AS POSSIBLE TO CONFIRM WHETHER THEIR INTERMEDIARY WILL SUPPORT QUARTERLY REPURCHASE OFFERS AND WHAT, IF ANY, EFFECT THE CONVERSION WILL HAVE ON THE SHAREHOLDER'S ACCOUNT.

Additional Resources Regarding the Conversion:

PRESS RELEASE - June 7, 2024:

BlackRock Municipal Income Fund, Inc. (MUI) Approves Conversion to Unlisted Closed-End Interval Fund Structure

October 16, 2024 SEC Filing:

SEC Registration Filing for BlackRock Municipal Credit Alpha Portfolio (MUNEX)

PRESS RELEASE - November 18, 2024:

BlackRock Municipal Income Fund, Inc. (MUI) Announces Final Results of Tender Offer

Important Notice

This press release is for informational purposes only and shall not constitute a recommendation, an offer to purchase or a solicitation of an offer to sell any common shares of the Fund.

About BlackRock

BlackRock's purpose is to help more and more people experience financial well-being. As a fiduciary to investors and a leading provider of financial technology, we help millions of people build savings that serve them throughout their lives by making investing easier and more affordable. For additional information on BlackRock, please visit www.blackrock.com/corporate

Availability of Fund Updates

BlackRock will update performance and certain other data for the Fund on a monthly basis on its website in the "Closed-end Funds" section of www.blackrock.com as well as certain other material information as necessary from time to time. Investors and others are advised to check the website for updated performance information and the release of other material information about the Fund. This reference to BlackRock's website is intended to allow investors public access to information regarding the Fund and does not, and is not intended to, incorporate BlackRock's website in this release.

Forward-Looking Statements

This press release, and other statements that BlackRock or the Fund may make, may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act, with respect to the Fund's or BlackRock's future financial or business performance, strategies or expectations. Forward-looking statements are typically identified by words or phrases such as "trend," "potential," "opportunity," "pipeline," "believe," "comfortable," "expect," "anticipate," "current," "intention," "estimate," "position," "assume," "outlook," "continue," "remain," "maintain," "sustain," "seek," "achieve," and similar expressions, or future or conditional verbs such as "will," "would," "should," "could," "may" or similar expressions.

BlackRock cautions that forward-looking statements are subject to numerous assumptions, risks and uncertainties, which change over time. Forward-looking statements speak only as of the date they are made, and BlackRock assumes no duty to and does not undertake to update forward-looking statements. Actual results could differ materially from those anticipated in forward-looking statements and future results could differ materially from historical performance.

With respect to the Fund, the following factors, among others, could cause actual events to differ materially from forward-looking statements or historical performance: (1) changes and volatility in political, economic or industry conditions, the interest rate environment, foreign exchange rates or financial and capital markets, which could result in changes in demand for the Fund or in the Fund's net asset value; (2) the relative and absolute investment performance of the Fund and its investments; (3) the impact of increased competition; (4) the unfavorable resolution of any legal proceedings; (5) the extent and timing of any distributions or share repurchases; (6) the impact, extent and timing of technological changes; (7) the impact of legislative and regulatory actions and reforms, and regulatory, supervisory or enforcement actions of government agencies relating to the Fund or BlackRock, as applicable; (8) terrorist activities, international hostilities, health epidemics and/or pandemics and natural disasters, which may adversely affect the general economy, domestic and local financial and capital markets, specific industries or BlackRock; (9) BlackRock's ability to attract and retain highly talented professionals; (10) the impact of BlackRock electing to provide support to its products from time to time; and (11) the impact of problems at other financial institutions or the failure or negative performance of products at other financial institutions.

Annual and Semi-Annual Reports and other regulatory filings of the Fund with the SEC are accessible on the SEC's website at www.sec.gov and on BlackRock's website at www.blackrock.com, and may discuss these or other factors that affect the Fund. The information contained on BlackRock's website is not a part of this press release.

View source version on businesswire.com: https://www.businesswire.com/news/home/20241223808448/en/

BlackRock Municipal Income Fund, Inc. (MUI) Provides De-Listing and Conversion Dates for Upcoming Conversion to Unlisted Continuously-Offered Closed-End Fund