# EDGAR Filing Document

**Accession Number:** 0000716314
**File Stem:** 0001193125-26-183486
**Filing Date:** 2026-4
**Character Count:** 5175
**Document Hash:** 1146bc7901ff4aca34f90cbdf550f97d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-183486.hdr.sgml**: 20260428

**ACCESSION NUMBER**: 0001193125-26-183486

**CONFORMED SUBMISSION TYPE**: SD

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260428

**DATE AS OF CHANGE**: 20260428

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** GRAHAM CORP
- **CENTRAL INDEX KEY:** 0000716314
- **STANDARD INDUSTRIAL CLASSIFICATION:** GENERAL INDUSTRIAL MACHINERY & EQUIPMENT [3560]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 161194720
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0331

**FILING VALUES:**
- **FORM TYPE:** SD
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-08462
- **FILM NUMBER:** 26903068

**BUSINESS ADDRESS:**
- **STREET 1:** 20 FLORENCE AVE
- **CITY:** BATAVIA
- **STATE:** NY
- **ZIP:** 14020
- **BUSINESS PHONE:** 5853432216

**MAIL ADDRESS:**
- **STREET 1:** 20 FLORENCE AVENUE
- **CITY:** BATAVIA
- **STATE:** NY
- **ZIP:** 14020

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

**FORM SD** 

**Specialized Disclosure Report** 

## Graham Corporation
**(Exact name of registrant as specified in its charter)** 

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| | | |
|:---|:---|:---|
| **Delaware** | **001-08462** | **16-1194720** |
| **(State or other jurisdiction of**<br> **incorporation or organization)** | **(Commission**<br> **File Number)** | **(I.R.S. Employer**<br> **Identification No.)** |
| **20 Florence Avenue, Batavia, New York** | **20 Florence Avenue, Batavia, New York** | **14020** |
| **(Address of principal executive offices)** | **(Address of principal executive offices)** | **(Zip Code)** |

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**Christopher Thome, Vice President – Finance, Chief Financial Officer and Chief Accounting Officer: (585) 343-2216** 

**(Name and telephone number, including area code, of the person to contact in connection with this report.)** 

Check the appropriate box to indicate the rule pursuant to which this form is being filed, and provide the period to which the information in this form applies:

☒ Rule 13p-1 under the Securities Exchange Act (17 CFR 240.13p-1) for the reporting period from January 1 to December 31, 2025.

☐ Rule 13q-1 under the Securities Exchange Act (17 CFR 240.13q-1) for the fiscal year ended __.

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**Section 1 - Conflict Minerals Disclosure** 

**Item 1.01 Conflict Minerals Disclosure and Report** 

**Conflict Minerals Disclosure** 

Graham Corporation ("we," "us" or "our") has determined that from January 1, 2025—December 31, 2025, certain Conflict Minerals (as defined by Item 1.01(d)(3) of Form SD) were necessary to the functionality and/or production of products that we manufactured or that we contracted to manufacture. Based on a reasonable country of origin inquiry, we have no reason to believe that such Conflict Minerals originated in the Democratic Republic of the Congo or an adjoining country sharing an internationally recognized border with the Democratic Republic of the Congo (together, "Covered Countries").

We undertook our reasonable country of origin inquiry by sending a vendor questionnaire to each of our vendors that has been active within the past year, including new vendors. The questionnaire solicited information regarding each such vendor's use of Conflict Minerals, its due diligence procedures with respect to its supply chain and the country of origin of any such Conflict Minerals. In some instances, we followed up with our vendors to obtain their responses. We also maintain a policy that we take vendor responses to the questionnaire into account when assessing continuing vendor relationships. We also attach the questionnaire to all purchase orders.

None of the elicited responses implicated any of the Covered Countries as the country of origin for any Conflict Minerals used by us in products that we manufactured or contracted to manufacture during the period covered by this specialized disclosure report. Based on our review of the responses, we have no reason to believe that Conflict Minerals provided by our vendors may have originated in the Covered Countries.

This Conflict Minerals Disclosure as well as our Conflict Minerals Policy is available on our website at https://ir.grahamcorp.com/corporate-governance/governance-documents.

**Item 1.02 Exhibit** 

Based on the results of our reasonable country of origin inquiry described in Item 1.01 above, we are not required to file a Conflict Minerals Report.

**Section 2 - Resource Extraction Issuer Disclosure** 

**Item 2.01 Resource Extraction Issuer Disclosure and Report** 

Not applicable.

**Section 3 - Exhibits** 

**Item 3.01 Exhibits** 

Not applicable.

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**SIGNATURES** 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the duly authorized undersigned.

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| | | |
|:---|:---|:---|
|  **Graham Corporation**<br> (Registrant) | **Graham Corporation**<br> (Registrant) | |
| By: | /s/ Christopher J. Thome | April 28, 2026 |
| (Name) | Christopher J. Thome | (Date) |
| (Title) | Vice President - Finance, Chief Financial Officer, Chief Accounting Officer and Corporate Secretary |  |

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