Graham Corporation (NYSE:GHM) ("GHM" or the "Company"), a global leader in the design and manufacture of mission critical fluid, power, heat transfer, vacuum, and advanced mixing technologies for the Defense, Space, Energy, and Process industries, today announced it plans to host an Analyst & Investor Day on Thursday, June 18th, 2026. The program will begin at 8:30 a.m. ET and will feature sessions led by Matthew J. Malone, President and Chief Executive Officer, Christopher J. Thome, Vice President - Finance and CFO, and other members of the management team.

A live webcast of the presentation can be accessed by registering for the event HERE, or by going to the Events & Presentation section of the Company's investor relations website at https://ir.grahamcorp.com/news-events/events-presentations. A replay will be available following the event.

About Graham Corporation

Graham is a global leader in the design and manufacture of mission critical fluid, power, heat transfer, vacuum, and advanced mixing technologies for the Defense, Space, Energy, and Process industries. Graham Corporation and its family of global brands are built upon world-renowned engineering expertise, proprietary technologies, as well as its responsive and flexible service and the unsurpassed quality customers have come to expect from the Company's products and systems. Graham Corporation routinely posts news and other important information on its website, grahamcorp.com, where additional information on Graham Corporation and its businesses can be found.

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Christopher J. Thome

Vice President - Finance and CFO

Phone: (585) 343-2216

Tom Cook

Investor Relations

(203) 682-8250

Tom.Cook@icrinc.com

Graham Corporation to Host an Analyst & Investor Day on June 18th, 2026