Main Street Announces New Portfolio Investment

Invests $42.5 Million in Recapitalization of Doral Corporation

HOUSTON, May 22, 2025 /PRNewswire/ -- Main Street Capital Corporation (NYSE: MAIN) ("Main Street") is pleased to announce that it recently completed a new portfolio investment to facilitate the minority recapitalization of Doral Corporation ("Doral" or the "Company"), a leading midwestern U.S. based contractor specializing in rigging, millwrighting, machinery moving, steel fabrication and material handling installation. Main Street partnered with the Company's existing owner to facilitate the transaction, with Main Street funding $42.5 million in a combination of first lien, senior secured term debt and a direct equity investment.

Founded in 1972 and headquartered in Milwaukee, Wisconsin, Doral (www.doralcorp.net) provides specialty contracting services across the U.S. to customers in the supply chain & logistics, construction, food & beverage, wastewater and other end markets. With a proven track record, deep industry experience and a commitment to operational excellence, Doral has built a strong reputation as a trusted partner for installation, maintenance and repair solutions. Through its differentiated services, the Company offers comprehensive, one-stop-shop capabilities that streamline customers' projects, reduce subcontracting needs and minimize customer downtime.

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 alternatives 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, dhyzak@mainstcapital.com  
Ryan R. Nelson, CFO, rnelson@mainstcapital.com             
713-350-6000

Dennard Lascar Investor Relations
Ken Dennard | ken@dennardlascar.com   
Zach Vaughan | zvaughan@dennardlascar.com   
713-529-6600

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SOURCE Main Street Capital Corporation