Preliminary Proxy Statement

Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

Definitive Proxy Statement

Definitive Additional Materials

Soliciting Material Pursuant to §240.14a-12

No fee required.

Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.

Title of each class of securities to which transaction applies:

Aggregate number of securities to which transaction applies:

Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):

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Total fee paid:

Fee paid previously with preliminary materials.

Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

Amount Previously Paid:

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Date Filed:

P.O. BOX 8016, CARY, NC 27512-9903

Graham Corporation

Important Notice Regarding the

Availability of Proxy Materials

Stockholders Meeting to be held on

July 28, 2021

For Stockholders as of record on June 2, 2021

This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. This is not a ballot. You cannot use this notice to vote your shares. We encourage you to access and review all of the important information contained in the proxy materials before voting.

To view the proxy materials, and to obtain directions to attend the meeting, go to: www.proxydocs.com/GHM

To vote your proxy while visiting this site, you will need the 12 digit control number in the box below.

Under United States Securities and Exchange Commission rules, proxy materials do not have to be delivered in paper. Proxy materials can be distributed by making them available on the Internet.

For a convenient way to VIEW proxy materials
and VOTE go to www.proxydocs.com/GHM

Have the 12 digit control number located in the shaded box above available
when you access the website and follow the instructions.

If you want to receive a paper or e-mail copy of the proxy material, you must request one. There is no charge to you for requesting a copy. In order to receive a paper package in time for this year’s meeting, you must make this request on or before July 19, 2021.

INTERNET

www.investorelections.com/GHM

    TELEPHONE    

    (866) 648-8133    

    * E-MAIL    

    paper@investorelections.com    

When requesting via the Internet or telephone you will need the 12 digit control number located in the shaded box above.

Graham Corporation

Meeting Type: Annual Meeting of Stockholders

Date: Wednesday, July 28, 2021

Time: 11:00 AM, Eastern Time

Place: Annual Meeting to be held live via the Internet - please visit

            www.proxydocs.com/GHM for more details.

You must register to attend the meeting online and/or participate at www.proxydocs.com/GHM

SEE REVERSE FOR FULL AGENDA

PROPOSAL

Election of three director nominees

To approve, on an advisory basis, the compensation of our named executive officers

To ratify the appointment of Deloitte & Touche LLP as our independent registered public accounting firm for the fiscal year ending March 31, 2022