# EDGAR Filing Document

**Accession Number:** 0000066382
**File Stem:** 0000066382-26-000053
**Filing Date:** 2026-5
**Character Count:** 32665
**Document Hash:** 47698392ea0f1b5bb1b3be874b710d73
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000066382-26-000053.hdr.sgml**: 20260529

**ACCESSION NUMBER**: 0000066382-26-000053

**CONFORMED SUBMISSION TYPE**: SD

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260529

**DATE AS OF CHANGE**: 20260529

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MILLERKNOLL, INC.
- **CENTRAL INDEX KEY:** 0000066382
- **STANDARD INDUSTRIAL CLASSIFICATION:** OFFICE FURNITURE [2520]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 380837640
- **STATE OF INCORPORATION:** MI
- **FISCAL YEAR END:** 0530

**FILING VALUES:**
- **FORM TYPE:** SD
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-15141
- **FILM NUMBER:** 261044326

**BUSINESS ADDRESS:**
- **STREET 1:** 855 E MAIN AVE
- **STREET 2:** PO BOX 302
- **CITY:** ZEELAND
- **STATE:** MI
- **ZIP:** 49464-0302
- **BUSINESS PHONE:** 6166543000

**MAIL ADDRESS:**
- **STREET 1:** 855 E MAIN AVE
- **CITY:** ZEELAND
- **STATE:** MI
- **ZIP:** 49464

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** HERMAN MILLER INC
- **DATE OF NAME CHANGE:** 20191119

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MILLER HERMAN INC
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MILLER HERMAN FURNITURE CO
- **DATE OF NAME CHANGE:** 19690610

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM SD**

**SPECIALIZED DISCLOSURE REPORT**

**MillerKnoll, Inc.**

(Exact name of the registrant as specified in its charter)

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| | | |
|:---|:---|:---|
| &nbsp;&nbsp;**Michigan** | &nbsp;&nbsp;**001-15141** | &nbsp;&nbsp;**38-0837640** |
| &nbsp;&nbsp;(State or other jurisdiction<br>of incorporation or organization) | &nbsp;&nbsp;(Commission File No.) | &nbsp;&nbsp;(I.R.S. Employer<br>Identification Number) |
| &nbsp;&nbsp;**855 East Main Street, P.O. Box 302, Zeeland, MI** |  | &nbsp;&nbsp;**49464-0302** |
| &nbsp;&nbsp;(Address of Principal Executive Offices) |  | &nbsp;&nbsp;(Zip Code) |
| &nbsp;&nbsp;**Kevin J. Veltman (616) 654-3000**<br>**Chief Financial Officer** | &nbsp;&nbsp;**Kevin J. Veltman (616) 654-3000**<br>**Chief Financial Officer** | &nbsp;&nbsp;**Kevin J. Veltman (616) 654-3000**<br>**Chief Financial Officer** |
| (Name and telephone number, including area code, of the<br>person to contact in connection with this report.) | (Name and telephone number, including area code, of the<br>person to contact in connection with this report.) | (Name and telephone number, including area code, of the<br>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 240.13p-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**

MillerKnoll, Inc. is providing a Conflict Minerals Report for the calendar year ended December 31, 2025, filed as Exhibit 1.01 hereto, and it is publicly available electronically at https://www.millerknoll.com/investor-relations/financials-filings/sec-filings.

**Item 1.02 Exhibit**

MillerKnoll, Inc. has filed, as an exhibit to this Form SD, a Conflict Minerals Report as required by Item 1.01 of this Form.

**Section 3 - Exhibits** 

**Item 3.01 Exhibits**

The following exhibit is filed as part of this report.

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| | |
|:---|:---|
| **<u>Exhibit Number</u>** | **<u>Description</u>** |
| 1.01 | <u>[Conflict Minerals Report as required by Items 1.01 and 1.02 of this Form.](mlknsd_123125ext101.htm)</u> |

---

SIGNATURE

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.

---

| | | |
|:---|:---|:---|
| | | MillerKnoll, Inc. |
| Date: May 29, 2026 | By: | <u>/s/ Kevin J. Veltman</u> |
|  |  | Kevin J. Veltman |
|  |  | Chief Financial Officer |

---

## Exhibit 1.01

**Exhibit 1.01**

**MillerKnoll, Inc.**

**Conflict Minerals Report**

**For the Calendar Year Ended December 31, 2025**

This Conflict Minerals Report for the calendar year ended December 31, 2025, is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the "Rule"). The Securities and Exchange Commission ("SEC") adopted the Rule to implement reporting and disclosure requirements related to conflict minerals as directed by the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 ("Dodd-Frank Act"). The Rule imposes certain reporting obligations on SEC registrants whose manufactured products contain conflict minerals which are necessary to the functionality or production of their products. The minerals covered by the Rule include cassiterite, columbite-tantalite, gold, wolframite, and their derivatives, which are limited to tin, tantalum, tungsten, and gold ("3TG"). These reporting obligations apply to registrants regardless of whether the geographic origin of the 3TG is the Democratic Republic of the Congo or an adjoining country (the "Covered Countries").

**1. Company Overview**

This report has been prepared by management of MillerKnoll, Inc. ("MillerKnoll," the "Company," "we," "us," or "our"). The information includes the activities of all majority-owned subsidiaries and variable interest entities that are required to be consolidated. It does not include the activities of variable interest entities that are not required to be consolidated.

The Company researches, designs, manufactures, and distributes interior furnishings, including modular furniture systems, seating, freestanding furniture, storage, casegoods, healthcare products and accessories for use in various environments including office, healthcare, educational, and residential settings, and provides related services that support organizations and individuals all over the world. We conducted an analysis of our products and found that 3TG may be found in some of our products, however, the amount and value of 3TG in a given product is generally de minimis compared to size and value of the product overall.

**Supply Chain**

We rely on our direct (also referred to as in-scope) suppliers to provide information on the origin of the 3TG contained in components and materials supplied to us, including sources of 3TG that are supplied to them from lower tier suppliers. Although our Terms and Conditions of Purchase require compliance with our Company's Conflict Minerals Policy, contracts with our direct suppliers are frequently in force for multiple years. As we enter into new contracts, or our contracts renew, we will require direct suppliers to:

(1) not sell us any products that contain 3TG from any Covered Country that fund armed conflict,

(2) undertake diligence and investigation necessary to ensure products meet the prior requirement, and

(3) provide us with certificates and other evidence of compliance upon request.

We apply a risk-based approach, focusing on those direct suppliers who source products that may contain 3TG. We have assessed our industry to confirm that this risk-based approach is consistent with our peer companies. It is also consistent with and conforms to the internationally-recognized framework developed by the Organization for Economic Co-operation and Development ("OECD") as part of its "Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas" ("OECD Guidance") and the related Supplements for 3TG.

**Conflict Minerals Policy**

In 2012, the Company adopted a conflict minerals policy which is publicly available on our website at https://www.millerknoll.com/legal/policy-regarding-conflict-minerals.

**2. Conflict Minerals Compliance Process**

**2.1 Compliance Framework**

Where we deemed it appropriate, we referenced and/or implemented the OECD Guidance.

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**2.2 Management Systems**

**Conflict Minerals Policy**

As described above, we have adopted a conflict minerals policy, which is posted on our website.

**Internal Team**

The Company has established a cross-functional management team relating to conflict minerals, with oversight provided by our Chief Legal Officer. The team is comprised of subject matter experts from relevant functions (e.g., supply chain, engineering, and legal), and is responsible for implementing our conflict minerals compliance strategy. Our supply chain manager leads the work and acts as the conflict minerals program manager. Relevant senior management is briefed about the results of our due diligence efforts.

**Control Systems**

As we do not typically have a direct relationship with 3TG smelters and refiners, we engage and actively cooperate with other manufacturers in the institutional furniture industry and other relevant sectors. For example, we participate in the Business & Institutional Furniture Manufacturers Association ("BIFMA") industry-wide initiatives to identify upstream actors in the supply chain. The Company is also a member of the Manufacturers Alliance for Productivity and Innovation ("MAPI"), an organization that develops and shares best practices on key issues facing manufacturers, such as conflict minerals. Our controls include but are not limited to (1) our Code of Business Conduct and Ethics, which outlines expected behaviors for all MillerKnoll employees; (2) our Supplier Code of Conduct; and (3) our form Terms and Conditions of Purchase.

**Grievance Mechanism**

We have longstanding grievance mechanisms whereby employees and suppliers can report violations of the Company's policies, including our conflict minerals, via our Ethics and Compliance Hotline on our website at https://secure.ethicspoint.com/domain/media/en/gui/68502/index.html.

**Records Maintenance**

We retain all relevant documentation from our Reasonable Country of Origin Inquiry ("RCOI") and due diligence measures according to our records retention policy.

**2.3 Identify and Assess Risk in the Supply Chain**

Because of the depth, breadth, and constant evolution of our supply chain, it is difficult for us to identify actors upstream from our direct suppliers. We identified approximately 140 in-scope suppliers (compared to 170 in-scope suppliers in the previous calendar year) who provide materials or components that may contain 3TG. We rely on these suppliers to provide us with information on if their parts or products contain 3TG and, if so, about the source. Our direct suppliers similarly rely upon information provided by their suppliers.

**2.4 Design and Implement a Strategy to Respond to Risks**

MillerKnoll has an approved risk management plan, through which the conflict minerals program is implemented, managed and monitored. Updates to this risk assessment are provided regularly to relevant senior management. As described above, we participate in BIFMA industry-wide initiatives to identify upstream actors in the supply chain.

As part of our risk management efforts, we undertook several activities with our direct suppliers to help ensure they understood our expectations. We provided each supplier a copy of our conflict minerals policy and requested they complete a template survey (as further described in Section 3 below) for purposes of conflict minerals tracking. We answered their questions and provided clarification as needed. We shared training materials available from the Conflict-Free Sourcing Initiative. Finally, we reviewed supplier-specific responses and followed up where additional detail was needed.

**2.5 Report on Supply Chain Due Diligence** 

This conflict minerals report is being filed with the SEC as an exhibit to our specialized disclosure report on Form SD and is available on our website at https://www.millerknoll.com/investor-relations/financials-filings/sec-filings.

------

**3. Reasonable Country of Origin Inquiry and Results**

**Supplier Surveys**

For our RCOI, we conducted a survey of our direct suppliers using a template survey developed by the Electronic Industry Citizenship Coalition® ("EICC®") and the Global e-Sustainability Initiative ("GeSI"), known as the Responsible Minerals Initiative ("RMI") Reporting. The survey was developed to facilitate disclosure and communication of information regarding smelters that provide material in a company's supply chain. It includes questions regarding a company's conflict-free policy, engagement with its direct suppliers, and a listing of the smelters the company and its suppliers use. In addition, the survey requests detail of the origin of conflict minerals included in their products, as well as a description of their due diligence. Written instructions and recorded training illustrating the use of the tool is available on EICC's website. We designed our RCOI in good faith and in an attempt to determine the origin of 3TG that are necessary to the functionality or production of products that we contract to manufacture.

**Survey Responses**

If a supplier did not respond to our initial survey, we made at least two follow-up inquiries. We reviewed the responses in good faith and performed an assessment of the data against criteria developed to determine where additional engagement is required. These criteria included untimely or incomplete responses as well as inconsistencies within the data reported in the survey. We worked directly with those suppliers to provide revised responses. Please note that information gathered from the Company's suppliers is not collected on a continuous, real-time basis, and that, since the information comes from direct and secondary suppliers and independent Third-Party Audit programs, the Company can only provide reasonable (not absolute) assurance regarding the source and chain of custody of the necessary conflict minerals.

Several direct suppliers provided information indicating that one or more smelters or refiners identified in their supply chain are in one or more of the Covered Countries or appear on the RMI list of smelters and refiners that are certified as compliant with the RMI Conflict-Free Smelter Program assessment protocols; we list those smelters and refiners on Attachment A to this Report. However, because most direct suppliers complete the survey at a company level (rather than the product level), there was no reliable information indicating that any of the 3TG potentially obtained from these smelters or refiners was contained in materials, components, or parts that the suppliers supplied to us or to validate that any of these smelters or refiners are in our supply chain.

Some direct suppliers provided information indicating that one or more other smelters or refiners appeared in their supply chain but are not located in one or more of the Covered Countries. As to these smelters and refiners, we reviewed to determine whether they appeared on the RMI list of smelters or the U.S. Department of Commerce list of known facilities that process 3TG. That exercise indicated that there were known smelters or refiners purportedly in our supply chain that are not on the RMI list of smelters and refiners that are certified as compliant with the RMI Conflict-Free Smelter Program assessment protocols. Regardless, there was no reliable information indicating that any of the 3TG that these suppliers may have obtained from these smelters or refiners was contained in materials, components, or parts that the suppliers supplied to us or to validate that any of these smelters or refiners are in our supply chain.

**Conclusions**

We conducted our RCOI in good faith, and we believe that such inquiry was reasonable to allow us to make our determination. After reviewing the results of our RCOI, we determined that we had reason to believe that 3TG is necessary for the functionality or production of our products from certain suppliers may have originated in a Covered Country during 2025, all within the meaning of the Rule. Therefore, we determined that the Rule required us to conduct due diligence regarding the source of such 3TG. As to responses from other suppliers, however, we determined that we had no reason to believe that 3TG necessary for the functionality or production of our products from those suppliers may have originated in a Covered Country during 2025, all within the meaning of the Rule.

**4. Due Diligence and Results**

**Due Diligence** 

Considering the responses to our inquiries from certain suppliers that contained information indicating that 3TG were sourced from Covered Countries, we completed due diligence measures.

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Initially, we compared the facilities that the suppliers identified as in one or more of the Covered Countries or appearing on the RMI list of certified smelters and refiners to those certified as compliant with the RMI Conflict-Free Smelter Program assessment protocols as of May 21, 2026. We confirmed that all such smelters or refiners identified by the direct suppliers also appeared on the list of participants in the RMI Conflict-Free Smelter Program. Given these results, we did not undertake further due diligence measures, consistent with the OECD Guidance.

**Conclusion**

We conducted our due diligence in good faith. After reviewing the results of our due diligence, we did not find any evidence to suggest that any of the 3TG in our supply chain that is necessary for the functionality or production of our products and that may have originated in a Covered Country (a) funds any armed conflict in the Covered Countries or (b) is actually contained in components or parts that our suppliers have supplied to us.

**5. Steps to be Taken to Mitigate Risk**

We intend to take the following steps to improve our conflict minerals program to further mitigate any risk that the necessary 3TG in our products could benefit armed groups in the DRC or adjoining countries:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Include a conflict minerals clause in new or renewed supplier contracts.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Continue to work with our employees and suppliers to increase awareness of the issue, increase the response rate and improve the content of the supplier survey responses.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Engage any of our suppliers found to be supplying us with 3TG from sources from the DRC or any adjoining country that they cannot demonstrate are "DRC conflict free" to establish an alternative source of 3TG outside of those countries.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Work with the BIFMA and other groups to define and improve best practices and build leverage over the supply chain in accordance with the OECD Guidance.

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**ATTACHMENT A**

**Smelters and Refiners**

The following facilities have been reported to us by our suppliers as part of their supply chain for Conflict Minerals:

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| | | |
|:---|:---|:---|
| **Metal** | **Smelter** | **Country** |
| Gold | Abington Reldan Metals, LLC | UNITED STATES OF AMERICA |
| Gold | Advanced Chemical Company | UNITED STATES OF AMERICA |
| Gold | Agosi AG | GERMANY |
| Gold | AGR (Perth Mint Australia) | AUSTRALIA |
| Gold | Aida Chemical Industries Co., Ltd. | JAPAN |
| Gold | Almalyk Mining and Metallurgical Complex (AMMC) | UZBEKISTAN |
| Gold | AngloGold Ashanti Corrego do Sitio Mineracao | BRAZIL |
| Gold | Argor-Heraeus S.A. | SWITZERLAND |
| Gold | ASAHI METALFINE, Inc. | JAPAN |
| Gold | Asahi Refining Canada Ltd. | CANADA |
| Gold | Asahi Refining USA Inc. | UNITED STATES OF AMERICA |
| Gold | Asaka Riken Co., Ltd. | JAPAN |
| Gold | Aurubis AG | GERMANY |
| Gold | Bangalore Refinery | INDIA |
| Gold | Bangko Sentral ng Pilipinas (Central Bank of the Philippines) | PHILIPPINES |
| Gold | Boliden AB | SWEDEN |
| Gold | C. Hafner GmbH + Co. KG | GERMANY |
| Gold | CCR Refinery - Glencore Canada Corporation | CANADA |
| Gold | Chimet S.p.A. | ITALY |
| Gold | China's Shandong Gold Mining Co., Ltd | CHINA |
| Gold | Chugai Mining | JAPAN |
| Gold | Coimpa Industrial LTDA | BRAZIL |
| Gold | Dowa | JAPAN |
| Gold | DSC (Do Sung Corporation) | KOREA, REPUBLIC OF |
| Gold | Eco-System Recycling Co., Ltd. | JAPAN |
| Gold | Eco-System Recycling Co., Ltd. North Plant | JAPAN |
| Gold | Eco-System Recycling Co., Ltd. West Plant | JAPAN |
| Gold | Elite Industech Co., Ltd. | TAIWAN, PROVINCE OF CHINA |
| Gold | Gasabo Gold Refinery Ltd | RWANDA |
| Gold | GG Refinery Ltd. | TANZANIA, UNITED REPUBLIC OF |
| Gold | Gold by Gold Colombia | COLOMBIA |
| Gold | Gold Coast Refinery | GHANA |
| Gold | Gold Refinery of Zijin Mining Group Co., Ltd. | CHINA |
| Gold | HeeSung Metal Ltd. | KOREA, REPUBLIC OF |
| Gold | Heimerle + Meule GmbH | GERMANY |
| Gold | Heraeus Germany GmbH Co. KG | GERMANY |
| Gold | Heraeus Metals Hong Kong Ltd. | CHINA |
| Gold | Impala Platinum - Base Metal Refinery (BMR) | SOUTH AFRICA |
| Gold | Impala Platinum - Platinum Metals Refinery (PMR) | SOUTH AFRICA |
| Gold | Impala Platinum - Rustenburg Smelter | SOUTH AFRICA |
| Gold | Inca One (Chala One Plant) | PERU |
| Gold | Inca One (Koricancha Plant) | PERU |
| Gold | Inner Mongolia Qiankun Gold and Silver Refinery Share Co., Ltd. | CHINA |

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| | | |
|:---|:---|:---|
| Gold | Ishifuku Metal Industry Co., Ltd. | JAPAN |
| Gold | Istanbul Gold Refinery | TURKEY |
| Gold | Italpreziosi | ITALY |
| Gold | Japan Mint | JAPAN |
| Gold | Jiangxi Copper Co., Ltd. | CHINA |
| Gold | JX Advanced Metals Corporation | JAPAN |
| Gold | Kazzinc | KAZAKHSTAN |
| Gold | Kennecott Utah Copper LLC | UNITED STATES OF AMERICA |
| Gold | KGHM Polska Miedz Spolka Akcyjna | POLAND |
| Gold | Kojima Chemicals Co., Ltd. | JAPAN |
| Gold | Korea Zinc Co., Ltd. | KOREA, REPUBLIC OF |
| Gold | LS MnM Inc. | KOREA, REPUBLIC OF |
| Gold | Materion | UNITED STATES OF AMERICA |
| Gold | Matsuda Sangyo Co., Ltd. | JAPAN |
| Gold | Metal Concentrators SA (Pty) Ltd. | SOUTH AFRICA |
| Gold | Metalor Technologies (Hong Kong) Ltd. | CHINA |
| Gold | Metalor Technologies (Singapore) Pte., Ltd. | SINGAPORE |
| Gold | Metalor Technologies (Suzhou) Ltd. | CHINA |
| Gold | Metalor Technologies S.A. | SWITZERLAND |
| Gold | Metalor USA Refining Corporation | UNITED STATES OF AMERICA |
| Gold | Metalurgica Met-Mex Penoles S.A. De C.V. | MEXICO |
| Gold | Mitsubishi Materials Corporation | JAPAN |
| Gold | Mitsui Mining and Smelting Co., Ltd. | JAPAN |
| Gold | MKS PAMP SA | SWITZERLAND |
| Gold | MMTC-PAMP India Pvt., Ltd. | INDIA |
| Gold | Nadir Metal Rafineri San. Ve Tic. A.S. | TURKEY |
| Gold | Navoi Mining and Metallurgical Combinat | UZBEKISTAN |
| Gold | NH Recytech Company | KOREA, REPUBLIC OF |
| Gold | Nihon Material Co., Ltd. | JAPAN |
| Gold | Ogussa Osterreichische Gold- und Silber-Scheideanstalt GmbH | AUSTRIA |
| Gold | Ohura Precious Metal Industry Co., Ltd. | JAPAN |
| Gold | Planta Recuperadora de Metales SpA | CHILE |
| Gold | PT Aneka Tambang (Persero) Tbk | INDONESIA |
| Gold | PX Precinox S.A. | SWITZERLAND |
| Gold | Rand Refinery (Pty) Ltd. | SOUTH AFRICA |
| Gold | REMONDIS PMR B.V. | NETHERLANDS |
| Gold | Royal Canadian Mint | CANADA |
| Gold | SAFINA A.S. | CZECHIA |
| Gold | SEMPSA Joyeria Plateria S.A. | SPAIN |
| Gold | Shandong Zhaojin Gold & Silver Refinery Co., Ltd. | CHINA |
| Gold | Sichuan Tianze Precious Metals Co., Ltd. | CHINA |
| Gold | Solar Applied Materials Technology Corp. | TAIWAN, PROVINCE OF CHINA |
| Gold | Sumitomo Metal Mining Co., Ltd. | JAPAN |
| Gold | SungEel HiMetal Co., Ltd. | KOREA, REPUBLIC OF |
| Gold | T.C.A S.p.A | ITALY |
| Gold | Tanaka Kikinzoku Kogyo K.K. | JAPAN |
| Gold | Tokuriki Honten Co., Ltd. | JAPAN |
| Gold | TOO Tau-Ken-Altyn | KAZAKHSTAN |
| Gold | Umicore S.A. Business Unit Precious Metals Refining | BELGIUM |
| Gold | United Precious Metal Refining, Inc. | UNITED STATES OF AMERICA |

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| | | |
|:---|:---|:---|
| Gold | Universal Precious Metals Refining Zambia | ZAMBIA |
| Gold | Valcambi S.A. | SWITZERLAND |
| Gold | WIELAND Edelmetalle GmbH | GERMANY |
| Gold | Yamakin Co., Ltd. | JAPAN |
| Gold | Yokohama Metal Co., Ltd. | JAPAN |
| Gold | Zhongyuan Gold Smelter of Zhongjin Gold Corporation | CHINA |
| Tantalum | AMG Brasil | BRAZIL |
| Tantalum | Avon Specialty Metals Ltd | UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND |
| Tantalum | Changsha South Tantalum Niobium Co., Ltd. | CHINA |
| Tantalum | CMT Rare Metal Advanced Materials (Hunan) Co., Ltd. | CHINA |
| Tantalum | D Block Metals, LLC | UNITED STATES OF AMERICA |
| Tantalum | F&X Electro-Materials Ltd. | CHINA |
| Tantalum | FIR Metals & Resource Ltd. | CHINA |
| Tantalum | Global Advanced Metals Aizu | JAPAN |
| Tantalum | Global Advanced Metals Boyertown | UNITED STATES OF AMERICA |
| Tantalum | Guangdong Rising Rare Metals-EO Materials Ltd. | CHINA |
| Tantalum | Guangdong Zhiyuan New Material Co., Ltd. | CHINA |
| Tantalum | H.C. Starck Co., Ltd. | THAILAND |
| Tantalum | H.C. Starck Inc. | UNITED STATES OF AMERICA |
| Tantalum | H.C. Starck Ltd. | JAPAN |
| Tantalum | H.C. Starck Smelting GmbH & Co. KG | GERMANY |
| Tantalum | H.C. Starck Tantalum and Niobium GmbH | GERMANY |
| Tantalum | Hengyang King Xing Lifeng New Materials Co., Ltd. | CHINA |
| Tantalum | Jiangxi Dinghai Tantalum & Niobium Co., Ltd. | CHINA |
| Tantalum | Jiangxi Sanshi Nonferrous Metals Co., Ltd | CHINA |
| Tantalum | Jiangxi Tuohong New Raw Material | CHINA |
| Tantalum | Jiujiang Janny New Material Co., Ltd. | CHINA |
| Tantalum | JiuJiang JinXin Nonferrous Metals Co., Ltd. | CHINA |
| Tantalum | Jiujiang Tanbre Co., Ltd. | CHINA |
| Tantalum | Jiujiang Zhongao Tantalum & Niobium Co., Ltd. | CHINA |
| Tantalum | KEMET Blue Metals | MEXICO |
| Tantalum | Metallurgical Products India Pvt., Ltd. | INDIA |
| Tantalum | Mineracao Taboca S.A. | BRAZIL |
| Tantalum | Mitsui Mining and Smelting Co., Ltd. | JAPAN |
| Tantalum | Ningxia Orient Tantalum Industry Co., Ltd. | CHINA |
| Tantalum | NPM Silmet AS | ESTONIA |
| Tantalum | PowerX Ltd. | RWANDA |
| Tantalum | QuantumClean | UNITED STATES OF AMERICA |
| Tantalum | Resind Industria e Comercio Ltda. | BRAZIL |
| Tantalum | RFH Metals & Chemicals Co., Ltd. | CHINA |
| Tantalum | RFH Tantalum Smeltery Co., Ltd./Yanling Jincheng Tantalum & Niobium Co., Ltd. | CHINA |
| Tantalum | RFH Yancheng Jinye New Material Technology Co., Ltd. | CHINA |
| Tantalum | Taki Chemical Co., Ltd. | JAPAN |
| Tantalum | Telex Metals | UNITED STATES OF AMERICA |
| Tantalum | Ulba Metallurgical Plant JSC | KAZAKHSTAN |
| Tantalum | V&D New Materials (Jiangsu) Co., Ltd | CHINA |
| Tantalum | XIMEI RESOURCES(GUIZHOU) TECHNOLOGY CO., LTD | CHINA |
| Tantalum | XinXing Haorong Electronic Material Co., Ltd. | CHINA |

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| | | |
|:---|:---|:---|
| Tin | Alent plc | UNITED STATES OF AMERICA |
| Tin | Alpha Metals Taiwan | UNITED STATES OF AMERICA |
| Tin | Aurubis Beerse | BELGIUM |
| Tin | Aurubis Berango | SPAIN |
| Tin | Chenzhou Yunxiang Mining and Metallurgy Co., Ltd. | CHINA |
| Tin | Chifeng Dajingzi Tin Industry Co., Ltd. | CHINA |
| Tin | China Tin (Hechi) | CHINA |
| Tin | CRM Fundicao De Metais E Comercio De Equipamentos Eletronicos Do Brasil Ltda | BRAZIL |
| Tin | CRM Synergies | SPAIN |
| Tin | CV Ayi Jaya | INDONESIA |
| Tin | Dongguan Best Alloys Co., Ltd. | CHINA |
| Tin | Dowa | JAPAN |
| Tin | EM Vinto | BOLIVIA (PLURINATIONAL STATE OF) |
| Tin | Estanho de Rondonia S.A. | BRAZIL |
| Tin | Fabrica Auricchio Industria e Comercio Ltda. | BRAZIL |
| Tin | Feinhutte Halsbrucke GmbH | GERMANY |
| Tin | Fenix Metals | POLAND |
| Tin | Global Advanced Metals Greenbushes Pty Ltd. | AUSTRALIA |
| Tin | Guangdong Hanhe Non-Ferrous Metal Co., Ltd. | CHINA |
| Tin | HuiChang Hill Tin Industry Co., Ltd. | CHINA |
| Tin | Jiangxi New Nanshan Technology Ltd. | CHINA |
| Tin | Luna Smelter, Ltd. | RWANDA |
| Tin | Magnu's Minerais Metais e Ligas Ltda. | BRAZIL |
| Tin | Malaysia Smelting Corporation Berhad (Port Klang) | MALAYSIA |
| Tin | Metallic Resources, Inc. | UNITED STATES OF AMERICA |
| Tin | Mineracao Taboca S.A. | BRAZIL |
| Tin | Mining Minerals Resources SARL | CONGO, DEMOCRATIC REPUBLIC OF THE |
| Tin | Minsur | PERU |
| Tin | Mitsubishi Materials Corporation | JAPAN |
| Tin | O.M. Manufacturing (Thailand) Co., Ltd. | THAILAND |
| Tin | O.M. Manufacturing Philippines, Inc. | PHILIPPINES |
| Tin | Operaciones Metalurgicas S.A. | BOLIVIA (PLURINATIONAL STATE OF) |
| Tin | P Kay Metal, Inc | UNITED STATES OF AMERICA |
| Tin | Phoenix Metal Ltd. | RWANDA |
| Tin | PT Arsed Indonesia | INDONESIA |
| Tin | PT Artha Cipta Langgeng | INDONESIA |
| Tin | PT ATD Makmur Mandiri Jaya | INDONESIA |
| Tin | PT Bangka Prima Tin | INDONESIA |
| Tin | PT Cipta Persada Mulia | INDONESIA |
| Tin | PT Masbro Alam Stania | INDONESIA |
| Tin | PT Mitra Stania Prima | INDONESIA |
| Tin | PT Mitra Sukses Globalindo | INDONESIA |
| Tin | PT Premium Tin Indonesia | INDONESIA |
| Tin | PT Prima Timah Utama | INDONESIA |
| Tin | PT Putera Sarana Shakti (PT PSS) | INDONESIA |
| Tin | PT Rajehan Ariq | INDONESIA |
| Tin | PT Timah (Persero) Tbk Kundur | INDONESIA |

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| | | |
|:---|:---|:---|
| Tin | PT Timah (Persero) Tbk Mentok | INDONESIA |
| Tin | Resind Industria e Comercio Ltda. | BRAZIL |
| Tin | Rui Da Hung | TAIWAN, PROVINCE OF CHINA |
| Tin | Soft Metais Ltda. | BRAZIL |
| Tin | Super Ligas | BRAZIL |
| Tin | Takehara PVD Materials Plant / PVD Materials Division of MITSUI MINING & SMELTING CO., LTD. | JAPAN |
| Tin | Thailand Smelting & Refining Co Ltd | THAILAND |
| Tin | Tin Smelting Branch of Yunnan Tin Co., Ltd. | CHINA |
| Tin | Tin Technology & Refining | UNITED STATES OF AMERICA |
| Tin | TRATHO Metal Quimica | BRAZIL |
| Tin | White Solder Metalurgia e Mineracao Ltda. | BRAZIL |
| Tin | Woodcross Smelting Company Limited | UGANDA |
| Tin | Yunnan Yunfan Non-ferrous Metals Co., Ltd. | CHINA |
| Tungsten | A.L.M.T. Corp. | JAPAN |
| Tungsten | Asia Tungsten Products Vietnam Ltd. | VIET NAM |
| Tungsten | Avon Specialty Metals Ltd | UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND |
| Tungsten | China Molybdenum Tungsten Co., Ltd. | CHINA |
| Tungsten | China MuYe Tungsten Co,. Ltd. | CHINA |
| Tungsten | Cronimet Brasil Ltda | BRAZIL |
| Tungsten | Ganzhou Jiangwu Ferrotungsten Co., Ltd. | CHINA |
| Tungsten | Ganzhou Seadragon W & Mo Co., Ltd. | CHINA |
| Tungsten | Ganzhou Sunny Non-Ferrous Metals Co., Ltd. | CHINA |
| Tungsten | GEM Co., Ltd. | CHINA |
| Tungsten | Global Tungsten & Powders Corp. | UNITED STATES OF AMERICA |
| Tungsten | Guangdong Xianglu Tungsten Co., Ltd. | CHINA |
| Tungsten | H.C. Starck Smelting GmbH & Co. KG | GERMANY |
| Tungsten | H.C. Starck Tungsten GmbH | GERMANY |
| Tungsten | Japan New Metals Co., Ltd. | JAPAN |
| Tungsten | Jiangwu H.C. Starck Tungsten Products Co., Ltd. | CHINA |
| Tungsten | Jiangxi Gan Bei Tungsten Co., Ltd. | CHINA |
| Tungsten | Jiangxi Tonggu Non-ferrous Metallurgical & Chemical Co., Ltd. | CHINA |
| Tungsten | Jiangxi Xinsheng Tungsten Industry Co., Ltd. | CHINA |
| Tungsten | Jiangxi Yaosheng Tungsten Co., Ltd. | CHINA |
| Tungsten | Jing Yuan Tungsten Technology Co., Ltd. | TAIWAN, PROVINCE OF CHINA |
| Tungsten | Kenee Mining Corporation Vietnam | VIET NAM |
| Tungsten | Kennametal Fallon | UNITED STATES OF AMERICA |
| Tungsten | Kennametal Huntsville | UNITED STATES OF AMERICA |
| Tungsten | Lianyou Metals Co., Ltd. | TAIWAN, PROVINCE OF CHINA |
| Tungsten | Lianyou Resources Co., Ltd. | TAIWAN, PROVINCE OF CHINA |
| Tungsten | Malipo Haiyu Tungsten Co., Ltd. | CHINA |
| Tungsten | Masan High-Tech Materials | VIET NAM |
| Tungsten | Niagara Refining LLC | UNITED STATES OF AMERICA |
| Tungsten | Philippine Bonway Manufacturing Industrial Corporation | PHILIPPINES |
| Tungsten | Philippine Chuangxin Industrial Co., Inc. | PHILIPPINES |
| Tungsten | S.P.T. spol.s r.o. | CZECHIA |
| Tungsten | Shinwon Tungsten (Fujian Shanghang) Co., Ltd. | CHINA |
| Tungsten | Tungamoy Metals Inc. | KOREA, REPUBLIC OF |
| Tungsten | Tungsten Vietnam Joint Stock Company | VIET NAM |

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| | | |
|:---|:---|:---|
| Tungsten | Uzbek Refractory and Heat-Resistant Metals | UZBEKISTAN |
| Tungsten | Wolfram Bergbau und Hutten AG | AUSTRIA |
| Tungsten | Xiamen Tungsten (H.C.) Co., Ltd. | CHINA |
| Tungsten | Xiamen Tungsten Co., Ltd. | CHINA |

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