MSC INCOME FUND ANNOUNCES SECOND QUARTER 2026 RESULTS

MSC Income Fund, Inc. (NYSE: MSIF ) ("MSC Income" or the "Fund") is pleased to announce its financial results for the second quarter ended June 30, 2026. Second Quarter 2026 Highlights Net investment income ("NII") of $12.0 million, or $0.26 per share Adjusted net investment income ("ANII") (1) of $14.9 million, or $0.33 per share ANII before taxes (2) of $16.3 million, or $0.36 per share Total investment income of $35.7 million Net increase in net assets resulting from operations of $29.3 million, or $0.65 per share Return on equity (4) of 15.9% on an annualized basis for the quarter and 13.5% for the trailing twelve-month period ended June 30, 2026 Net asset value of $16.51 per share as of June 30, 2026, representing an increase of $0.64 per share, or 4.0%, compared to $15.87 per share as of March 31, 2026 and $0.66 per share, or 4.2%, compared to $15.85 per share as of December 31, 2025 Announced a change to the Fund's regular dividend payment frequency from quarterly to monthly, beginning in July 2026, and declared regular monthly dividends totaling $0.33 per share for the third quarter of 2026, or $0.11 per share for each of July, August and September 2026 Declared a supplemental dividend of $0.03 per share, payable in September 2026, resulting in total dividends declared in the second quarter of 2026 of $0.36 per share Completed $62.2 million in total private loan portfolio investments, which after aggregate repayments, return of invested equity capital and a decrease in cost basis due to a realized loss resulted in a net increase of $9.7 million in the total cost basis of the private loan investment portfolio Completed $13.1 million in total lower middle market ("LMM") portfolio follow-on investments, which after aggregate repayments and return of invested equity capital resulted in a net decrease of $2.2 million in the total cost basis of the LMM investment portfolio Realized a gain of $11.6 million on the exit of investments in Centre Technologies Holdings, LLC, a LMM portfolio company In commenting on the Fund's operating results for the second quarter of 2026, Dwayne L. Hyzak, MSC Income's Chief Executive Officer, stated, "We are pleased with the Fund's performance in the second quarter, which resulted in an annualized return on equity of 15.9%. The positive results included significant net fair value appreciation of the Fund's investment portfolio, including net fair value appreciation of both the private loan and lower middle market investment portfolios and including the benefit of a material realized gain in the Fund's lower middle market investment portfolio. Based upon the quality of the Fund's existing investment portfolio, together with the favorable liquidity position and the current investment pipeline, we remain excited about our future expectations for the Fund." Second Quarter 2026 Operating Results The following table provides a summary of the Fund's operating results for the second quarter of 2026: Three Months Ended June 30, 2026 2025 Change Change (%) (dollars in thousands, except per share amounts) Interest income $ 30,040 $ 29,349 $ 691 2 % Dividend income 3,829 4,956 (1,127) (23) % Fee income 1,831 1,338 493 37 % Total investment income $ 35,700 $ 35,643 $ 57 — % Net investment income $ 11,999 $ 16,307 $ (4,308) (26) % Net investment income per share $ 0.26 $ 0.35 $ (0.09) (26) % Adjusted net investment income (1) $ 14,948 $ 16,307 $ (1,359) (8) % Adjusted net investment income per share (1) $ 0.33 $ 0.35 $ (0.02) (6) % Adjusted net investment income before taxes (2) $ 16,323 $ 17,306 $ (983) (6) % Adjusted net investment income before taxes per share (2) $ 0.36 $ 0.37 $ (0.01) (3) % Net increase in net a...