Main Street Announces New Portfolio Investment

Invests $45.0 Million in Recapitalization of a Specialty Aircraft Distributor

HOUSTON, Sept. 2, 2025 /PRNewswire/ -- Main Street Capital Corporation (NYSE: MAIN) ("Main Street") is pleased to announce that it recently completed a new portfolio investment totaling $45.0 million to facilitate the minority recapitalization of a leading specialty aircraft distributor (the "Company"). Main Street partnered with the Company's Chief Executive Officer, who was also the Company's sole owner, to facilitate the transaction, with Main Street's investment including a combination of first lien, senior secured debt and a direct minority equity investment.

Founded over 30 years ago and headquartered in the Southeastern U.S., the Company is an industry-leading specialized aircraft distributor, parts supplier and maintenance provider. The Company serves a diverse customer base, primarily in North and South America.

ABOUT MAIN STREET CAPITAL CORPORATION

Main Street (www.mainstcapital.com) is a principal investment firm that primarily provides customized long-term debt and equity capital solutions to lower middle market companies and debt capital to private companies owned by or in the process of being acquired by a private equity fund. Main Street's portfolio investments are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in diverse industry sectors. Main Street seeks to partner with entrepreneurs, business owners and management teams and generally provides customized "one-stop" debt and equity financing solutions within its lower middle market investment strategy. Main Street seeks to partner with private equity fund sponsors and primarily invests in secured debt investments in its private loan investment strategy. Main Street's lower middle market portfolio companies generally have annual revenues between $10 million and $150 million. Main Street's private loan portfolio companies generally have annual revenues between $25 million and $500 million.

Main Street, through its wholly-owned portfolio company MSC Adviser I, LLC ("MSC Adviser"), also maintains an asset management business through which it manages investments for external parties. MSC Adviser is registered as an investment adviser under the Investment Advisers Act of 1940, as amended.

Contacts:

Main Street Capital Corporation

Dwayne L. Hyzak, CEO, [email protected]

Ryan R. Nelson, CFO, [email protected]

713-350-6000

Dennard Lascar Investor Relations

Ken Dennard | [email protected]

Zach Vaughan | [email protected]

713-529-6600

SOURCE Main Street Capital Corporation