MSC Income Fund Announces Private Loan Portfolio Activities for the Third Quarter of 2026

Houston, October 8, 2026 / PRNewswire / -- MSC Income Fund, Inc. ( NYSE : MSIF, referred to as " MSC Income " or "the Fund") is pleased to announce the following latest developments in its private lending portfolio. In the third quarter of 2026, MSC Income added or increased the total committed amount by $62.2 million to its private lending portfolio and completed a total investment of $61.4 million across the entire private lending portfolio on a cost basis.

The following are notable new private loan commitments and investments for the third quarter of 2026:

• Provided a $14.1 million first-lien secured term loan, a $2.6 million first-lien secured revolving credit line, a $5.1 million first-lien secured deferred drawdown term loan, and $600,000 in equity investment to a company that offers manufacturer representative services and power system integration services;
• Provided a $6.7 million first-lien secured term loan, a $3.8 million first-lien secured revolving credit line, a $4.2 million first-lien secured deferred drawdown term loan, and $300,000 in equity investment to a distributor of medium-voltage cables and accessories; as well as
• Provided a $10.9 million first-lien senior secured term loan, a $3.2 million first-lien senior secured revolving credit line, and a $1 million equity investment to an industrial mixed equipment manufacturer.

As of September 30, 2026, the private loan portfolio of MSC Income had a total investment of approximately $849.6 million based on cost, covering 81 independent companies. Calculated by cost percentage, 90.1% of this private loan portfolio was invested in senior secured debt with first lien, and 9.9% was invested in equity investments or other securities.

Regarding MSC INCOME FUND, INC.

This fund ( www.mscincomefund.com ) is a principal investment company that primarily provides debt capital to private companies that are held by private equity funds or are in the process of being acquired by them. The investments in this fund's portfolio are typically used to support leveraged acquisitions, capital restructuring, growth financing, refinancing, as well as acquisitions of companies in various industries. The fund seeks to collaborate with private equity fund sponsors and mainly invests in secured debt investments through its private lending strategy.

The fund also holds a customized long-term debt and equity investment portfolio targeting mid-to-small market companies. Through these investments, and leveraging the customized "one-stop" debt and equity financing solutions provided by Main Street Capital Corporation ( NYSE : MAIN, referred to as " Main Street"), the fund collaborates on joint investments with entrepreneurs, company owners, and management teams within its mid-to-small market investment strategy.

The annual income of the private loan investment portfolio companies of this fund typically ranges between 25 million US dollars and 500 million US dollars. The annual income of the mid-scale market investment portfolio companies of this fund usually ranges between 10 million US dollars and 150 million US dollars.

About MAIN STREET CAPITAL PARTNERS

MSC Adviser I, LLC (operating under the name of Main Street Capital Partners, commonly referred to as " MSCP") is a wholly-owned subsidiary of Main Street and has been registered as an investment advisor in accordance with the revised Investment Advisors Act of 1940. In addition to several other advisory clients, MSCP also serves as the investment advisor and manager for that fund.

Contact Person:

MSC Income Fund, Inc.

Dennard Lascar Investor Relations