WESTERN ASSET MUNICIPAL HIGH INCOME FUND INC.

Western Asset Municipal High Income Fund Inc. is a closed-ended fixed income mutual fund. It is managed by Legg Mason Partners Fund Advisor, LLC, with co-management by Western Asset Management Company. The fund invests in the fixed income markets of the United States, focusing primarily on intermediate and long-term municipal debt securities. These securities are issued by state and local governments, including U.S. territories and possessions, political subdivisions, agencies, and public authorities. The fund aims to invest in investment-grade debt securities, specifically those rated in one of the four highest rating categories by a nationally recognized statistical rating organization. The performance of its portfolio is benchmarked against the Lehman Brothers Municipal Bond Index. The fund was established on November 28, 1988, and is domiciled in the United States. It was previously known as Municipal High Income Fund Inc.