<div id="readability-page-1"><div> <div> , /PRNewswire/ -- abrdn National Municipal Income Fund (NYSE: VFL) announces that the Special Meeting of Shareholders was held and adjourned today, to allow for the solicitation of additional proxies to achieve the requisite quorum. The Fund has set a new adjournment date for its Special Meeting of Shareholders of Wednesday, May 27, 2026, at 11:00 am Eastern Time. Shareholders of the Fund are being asked to vote on the proposal to approve an Agreement and Plan of Reorganization between the abrdn National Municipal Income Fund (NYSE: VFL) and MFS Municipal Income Trust (NYSE: MFM). The Board of Trustees unanimously recommends that you consider casting your vote for the Reorganization of the fund pursuant to the plan of Reorganization as described in the Joint Proxy Statement/Prospectus. Shareholders are directed to the supplemental proxy materials that they will receive in the mail for further information. The proxy statement, as supplemented to date, is also available on the Securities and Exchange Commission's website, www.sec.gov. Important Information Shares of closed-end funds are listed for trading on national securities exchanges and are bought and sold in the secondary market. The market price of a fund's shares is determined by supply and demand and may be greater than (a &#34;premium&#34;) or less than (a &#34;discount&#34;) the fund's net asset value (NAV). A fund's investment return and principal value will fluctuate, and investors may receive more or less than their original investment upon the sale of shares. There is no assurance that a fund will achieve its investment objective. Past performance is not indicative of future results. The trading price of a closed-end fund's shares may be influenced by various factors, including market conditions, investor sentiment, and other external forces, and is not directly controlled by the fund, its Board of Directors, or its investment adviser. As a result, shares may trade at a premium to or discount from NAV at any given time. A premium to NAV may not be sustained, and a discount to NAV may increase or decrease over time. Investors should consider these risks when purchasing or selling closed-end fund shares. Shareholders whose fund shares trade at a premium to NAV and who participate in the fund's dividend reinvestment plan should be aware that distributions may be reinvested at prices above NAV, which may adversely affect investment results. About Aberdeen Investments Aberdeen Investments Global is the trade name of Aberdeen's investments business, herein referred to as &#34;Aberdeen Investments&#34; or &#34;Aberdeen&#34;. In the United States, Aberdeen Investments refers to the following affiliated, registered investment advisers: abrdn Inc., abrdn Investments Limited, and abrdn Asia Limited. Aberdeen Investments is among the world's largest asset managers, with decades of experience overseeing closed-end funds dating back to the 1980s. As of March 31, 2026, the firm had approximately $506 billion in assets under management. Closed-end funds represent a core component of Aberdeen Investments' client franchise in both the U.S. and global markets. Aberdeen and its affiliates currently manage 27 closed-end funds – 15 available in the U.S. and 12 outside the U.S. – totaling $25.6 billion in assets as of March 31, 2026. abrdn National Municipal Income Fund | Aberdeen SOURCE abrdn National Municipal Income Fund <img src="https://imageproxy.pbkrs.com/https://rt.prnewswire.com/rt.gif/query-RGF0ZUlkPTIwMjYwNTA2Jk5ld3NJdGVtSWQ9UEg1MzA4MSZUcmFuc21pc3Npb25fSWQ9MjAyNjA1MDYxNjE3UFJfTkVXU19VU1BSX19fX19QSDUzMDgx?x-oss-process=image/auto-orient,1/interlace,1/resize,w_1440,h_1440/quality,q_95/format,jpg" original-src="https://imageproxy.pbkrs.com/https://rt.prnewswire.com/rt.gif/query-RGF0ZUlkPTIwMjYwNTA2Jk5ld3NJdGVtSWQ9UEg1MzA4MSZUcmFuc21pc3Npb25fSWQ9MjAyNjA1MDYxNjE3UFJfTkVXU19VU1BSX19fX19QSDUzMDgx"/></div> </div></div>

AMUN

abrdn National Municipal Income Fund (NYSE: VFL) has announced the adjournment of its Special Meeting of Shareholders to allow for additional proxy solicitation. The new meeting date is set for May 27, 2026, at 11:00 am ET, where shareholders will vote on a proposed reorganization with MFS Municipal Income Trust (NYSE: MFM). The Board of Trustees recommends voting in favor of the reorganization. Shareholders will receive supplemental proxy materials for more information.

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16:17 ETabrdn National Municipal Income Fund (VFL) Announces Adjournment of Special Shareholder Meeting Relating to Proposed Reorganization