Exhibit 1.01
MDU Resources Group, Inc.
Conflict Minerals Report
For The Year Ended December 31, 2015
Introduction
This conflict minerals report (the “Report”) has been prepared pursuant to Rule 13p-1 under the Securities Exchange Act of 1934 (the “Rule”), for the reporting period from January 1 to December 31, 2015.
The Report relates to the process undertaken by MDU Resources Group, Inc. (herein referred to as “MDU Resources,” the “Company,” “we,” “us,” or “our”) with respect to products that were manufactured, or contracted to be manufactured, during calendar year 2015 and that contain cassiterite, columbite-tantalite, gold, wolframite, and their derivatives, which are limited to tin, tantalum, and tungsten for purposes of this Report (collectively, the “Conflict Minerals”).
Third-party products that we sell but do not manufacture or contract to manufacture are outside the scope of this Report.
Company and Products Overview
MDU Resources is a diversified natural resource company which operates in a number of business segments, including electric, natural gas distribution, pipeline and energy services, construction materials and contracting, and construction services.
The Company, through its wholly-owned subsidiary MDU Construction Services Group, Inc., (“MDU Construction Services”) provides utility construction services specializing in constructing and maintaining electric and communication lines, gas pipelines, fire suppression systems, and external lighting and traffic signalization. MDU Construction Services also provides utility excavation and inside electrical and mechanical services, and manufactures and distributes transmission line construction equipment and supplies. The construction equipment that is manufactured by MDU Construction Services, through its wholly-owned subsidiary Wagner-Smith Equipment Co., includes electric transmission line pullers, tensioners, reel stands, reel carriers, and electric transmission pole and material trailers (the “Construction Equipment”).
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Based upon our internal assessment, certain of the Construction Equipment products are the only products that are either manufactured or contracted to be manufactured by the Company and its subsidiaries which contain Conflict Minerals. Accordingly, for purposes of this Report, only the Construction Equipment products were considered.
Supply Chain Overview
We have performed a detailed analysis of our Construction Equipment product components and the role that suppliers play throughout our manufacturing and product delivery processes. We do not purchase ore or unrefined Conflict Minerals from mines and we are many steps removed in the supply chain from the mining of the Conflict Minerals. Instead, the Company purchases materials used in our Construction Equipment from a large network of suppliers and some of those materials contribute necessary Conflict Minerals to certain of our products. The origin of the Conflict Minerals cannot be determined with any certainty once the raw ores are smelted, refined and converted to ingots, bullion or other Conflict Mineral containing derivatives. The smelters and refiners are the consolidating points for raw ore and are in the best position in the total supply chain to know the origins of the ores. We rely upon our suppliers to assist with our reasonable country of origin inquiry (“RCOI”) and due diligence efforts, including the identification of smelters and refiners, for the Conflict Minerals contained in the materials which they supply to us.
Conflict Minerals Program
Our Conflict Minerals program has been developed in conformity with the Organisation for Economic Co-operation and Development Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas (Second Edition), and related Supplement on Tin, Tantalum and Tungsten and Supplement on Gold (collectively, the “OECD Guidance”), specifically as it relates to our position in the minerals supply chain as a “downstream” purchaser.
Our Conflict Minerals program includes components, summarized below, related to the five-step framework set forth in the OECD Guidance:
Management Systems
•MDU Resources maintains an internal “Conflict Minerals” team which is responsible for implementing and overseeing our Conflict Minerals compliance strategy. Our team includes individuals from relevant function areas including accounting, legal, finance and operations.
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| • | We maintain a Conflict Minerals Policy, available on our website, pursuant to which we: |
| 1. | Work closely with our suppliers to determine the potential use of Conflict Minerals in our supply chain and, when appropriate, work with them to remediate issues and source more responsibly. |
| 2. | Expect our Conflict Minerals suppliers to conduct the necessary inquiry and, where appropriate, additional due diligence to provide us with confirmation of the source of the materials used in their processes and ultimately present in our manufactured products; and |
| 3. | Encourage our suppliers to advocate and adhere to our philosophy of sourcing Conflict Minerals from socially responsible suppliers, including conflict-free mines in the Democratic Republic of the Congo or adjoining countries (collectively, the “Covered Countries”). |
•Our employees, vendors, customers and other stakeholders may report any concerns relating to our Conflict Minerals program by telephone or online through our EthicsPoint system.
Identify and Assess Risks in Our Supply Chain
We have determined that seeking information about Conflict Minerals smelters and refiners in our supply chain from our suppliers represents the most reasonable effort we can make to determine the mines or location of origins of the Conflicts Minerals in our Construction Products. We identify direct suppliers that supply products to us that may contain Conflict Minerals. We then survey those suppliers, requesting relevant information regarding the origins of Conflict Minerals used in the products they supply to us and the smelters and refiners used in connection with such Conflict Minerals. We follow up, by telephone and written correspondence, with those suppliers that do not respond by a specified date. We review the responses for completeness, request additional information as necessary, and request our suppliers to update the information provided as new information becomes available. We then compare the smelters and refiners identified in the supply chain survey against the list of facilities that have been designated “conflict-free” by the Conflict-Free Sourcing Initiative (“CFSI”) under its Conflict Free Smelter Program (the “CFSP”) and against the CFSI list of active facilities that have committed to undergo a CFSP audit. We rely on the CFSI to carry out smelter assessments and audits.
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Design and Implement a Strategy to Respond to Risks
We intend to work with suppliers who are sourcing minerals from non-conflict-free smelters and refiners to move towards using conflict-free facilities within a reasonable time frame. The time frame will be dependent on the criticality of the specific part and the availability of alternative suppliers.
Risk management efforts are discussed by the Conflicts Mineral team and risk assessment updates are provided regularly to senior management.
Third-Party Audit of Smelter/Refiner’s Due Diligence Practices
We encourage our suppliers to advocate and adhere to our philosophy of sourcing Conflict Minerals from socially responsible suppliers, including conflict-free mines, and support industry efforts to encourage smelters and refiners to seek “conflict-free” designation by the CFSI.
Report on Supply Chain Due Diligence
MDU Resources makes its Conflicts Mineral Report available on its website at
www.mdu.com/integrity/governance/conflictmineralsreport.
The content of our website referred to in this Report is included for general information only and is not incorporated by reference into this Report.
Reasonable Country of Origin Inquiry
We have conducted an RCOI regarding the Conflict Minerals purchased by the Company that was reasonably designed to determine whether any such Conflict Minerals originated in the Covered Countries, or were from recycled or scrap sources. We identified 107 suppliers that provided components or engaged in manufacturing activities for use in our Construction Equipment products that may contain Conflict Minerals during calendar year 2015. In January 2016, we contacted these suppliers and provided them with a copy of our Conflict Minerals Policy, the CFSI Conflict Minerals Reporting Template (the “Template”) and an instructional letter to assist them in completing their responses. The Template includes questions regarding a supplier’s conflict-free policy, engagement with its direct suppliers, and a listing of the smelters and refiners the supplier and its suppliers use. In addition, the Template contains questions about the origin of Conflict Minerals included in the supplier’s products, as well as the supplier’s due diligence processes. We requested responses by
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April 1, 2016 and conducted follow-up by telephone and written correspondence with those suppliers that did not respond to the initial request.
Of the suppliers surveyed, 64% (68 suppliers) responded to our request for information. Based upon the results of our RCOI, we cannot exclude the possibility that some of the Conflict Minerals used in our Construction Equipment products originated or may have originated in the Covered Countries and are not from recycled or scrap sources.
Design of Due Diligence
Our Conflict Minerals due diligence measures have been designed to conform to the due diligence-related steps of the OECD Guidance, as applicable for a “downstream” purchaser.
Due Diligence Measures Performed
Below is a description of the measures we performed to exercise due diligence on the source and chain of custody of the necessary Conflict Minerals contained in our Construction Equipment.
| • | We sent our suppliers a letter which included the Template and instructions and requested that they complete and return the Template. |
| • | We requested that our suppliers adopt and communicate their Conflict Mineral policies and sourcing expectation to their suppliers and request that they complete the Template. |
| • | We followed up by telephone and written correspondence with our suppliers that failed to complete and return the Template and solicited additional information. |
| • | We reviewed all received supplier Templates for completeness. Suppliers that did not provide complete information or provided information that we identified as potentially inaccurate were requested to take corrective actions and update their Template responses. |
| • | We compared smelters identified in supplier Templates against the list of smelters that have committed to undergo a CFSP audit and the list of smelters that have received a “conflict free” designation under the CFSP. |
Due Diligence Results
For reporting year 2015, we surveyed 107 suppliers of materials for our Construction Equipment using the Template. Of the suppliers surveyed, 64% (68 suppliers) responded to our request for
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information. We have relied on these suppliers' responses to provide us with information about the source of Conflict Minerals contained in the components supplied to us. Our direct suppliers are similarly reliant upon information provided by their suppliers.
As the result of our due diligence, we have gathered 311 smelter names from our supply chain. Of these, 211 have been designated as conflict-free compliant under the CFSP. An additional 27 are active facilities that have committed to undergo a CFSP audit. Of the remaining reported smelters, 62 have been determined to be legitimate processing facilities by the CFSI and have been allocated a Smelter Identification CID number. The final 11 are alleged smelters which have not yet been validated by CFSI.
We requested mine or location of origin information for the necessary Conflict Minerals from each of our suppliers using the Template. In some instances our suppliers reported name or location of mine. However, many of our suppliers were unable to obtain reliable mine or location of origin data for their necessary Conflict Minerals.
One smelter identified by a supplier, Phoenix Metal Ltd., is located in a Covered Country. Phoenix Metal Ltd. is an active facility that has committed to undergo a CFSP audit. Fifteen smelters identified by a supplier have mines located in a Covered Country and are all included on the CFSP conflict-free smelter list.
Determination
We do not have sufficient information from our suppliers or other sources to determine the country of origin of all the Conflict Minerals used in our Construction Equipment products, the smelters and refiners used to process such Conflict Minerals, whether the Conflict Minerals used in the Construction Equipment are from recycled or scrap sources, their country of origin or their mine or location of origin.
Many of our suppliers were unable to represent to us that the Conflict Minerals from the entities they listed had actually been included in materials they supplied to us. In addition, many processing facilities were not validated as in fact being smelters or refiners. Therefore, based on the information provided by our suppliers, we have elected to present only the facility names recognized by the CFSI on Annex 1 and believe that these facilities may have been used to process the Conflict Minerals in our Construction Equipment.
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Based on our due diligence efforts, we do not have sufficient information to conclusively determine the countries of origin of the Conflict Minerals in our Construction Equipment or whether the Conflict Minerals are from recycled or scrap sources. On the basis of the due diligence measures described in this Report, we have reason to believe that some of the Conflict Minerals used in our Construction Equipment products may have originated in the Covered Countries and are not from recycled or scrap sources, but we have not identified any instances in which our sourcing of necessary Conflict Minerals directly or indirectly financed or benefitted armed groups in the Covered Countries.
We have provided information as of the date of this Report. Subsequent events may affect our future determinations under the Rule.
Future Due Diligence Measures
As we continue to enhance our due diligence program, we intend to take the following steps, among others, to continue to mitigate the risk that the necessary Conflict Minerals in our Construction Equipment could benefit armed groups in the Covered Countries:
•Request that completed Templates be returned earlier in the year to provide additional time for follow-up in order to improve supply chain survey completion and due diligence data accuracy;
•Track and add new suppliers to our Conflict Minerals program as they enter our supply chain;
•Drive our suppliers to obtain current, accurate and complete information about their smelters and refiners of Conflict Minerals; and
•Continue to identify additional smelters and refiners and encourage them to obtain “conflict-free” designation.
•Seek to obtain additional information about identified smelters and refiners not recognized by CFSI, for example by researching and reviewing news articles, facility websites or other public information, that may indicate where such smelters and refiners source their Conflict Minerals.
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ANNEX 1
| Subject Mineral | Smelter or Refiner Name | Country Location of Smelter or Refiner |
| Gold | Advanced Chemical Company | UNITED STATES |
| Gold | Aida Chemical Industries Co., Ltd. | JAPAN |
| Gold | Aktyubinsk Copper Company TOO | KAZAKHSTAN |
| Gold | Allgemeine Gold-und Silberscheideanstalt A.G. | GERMANY |
| Gold | Almalyk Mining and Metallurgical Complex (AMMC) | UZBEKISTAN |
| Gold | AngloGold Ashanti Córrego do Sítio Mineração | BRAZIL |
| Gold | Argor-Heraeus SA | SWITZERLAND |
| Gold | Asahi Pretec Corporation | JAPAN |
| Gold | Asahi Refining Canada Limited | CANADA |
| Gold | Asahi Refining USA Inc. | UNITED STATES |
| Gold | Asaka Riken Co., Ltd. | JAPAN |
| Gold | Atasay Kuyumculuk Sanayi Ve Ticaret A.S. | TURKEY |
| Gold | Aurubis AG | GERMANY |
| Gold | Bangko Sentral ng Pilipinas (Central Bank of the Philippines) | PHILIPPINES |
| Gold | Bauer Walser AG | GERMANY |
| Gold | Boliden AB | SWEDEN |
| Gold | C. Hafner GmbH + Co. KG | GERMANY |
| Gold | Caridad | MEXICO |
| Gold | CCR Refinery - Glencore Canada Corporation | CANADA |
| Gold | Cendres + Métaux SA | SWITZERLAND |
| Gold | Chimet S.p.A. | ITALY |
| Gold | Chugai Mining | JAPAN |
| Gold | Daejin Indus Co., Ltd. | KOREA, REPUBLIC OF |
| Gold | Daye Non-Ferrous Metals Mining Ltd. | CHINA |
| Gold | DODUCO GmbH | GERMANY |
| Gold | Dowa | JAPAN |
| Gold | DSC (Do Sung Corporation) | KOREA, REPUBLIC OF |
| Gold | Eco-System Recycling Co., Ltd. | JAPAN |
| Gold | Elemetal Refining, LLC | UNITED STATES |
| Gold | Faggi Enrico S.p.A. | ITALY |
| Gold | Gansu Seemine Material Hi-Tech Co., Ltd. | CHINA |
| Gold | Geib Refining Corporation | UNITED STATES |
| Gold | Great Wall Precious Metals Co., Ltd. of CBPM | CHINA |
| Gold | Guangdong Jinding Gold Limited | CHINA |
| Gold | Guoda Safina High-Tech Environmental Refinery Co., Ltd. | CHINA |
| Gold | Hangzhou Fuchunjiang Smelting Co., Ltd. | CHINA |
| Gold | Heimerle + Meule GmbH | GERMANY |
| Gold | Heraeus Ltd. Hong Kong | CHINA |
| Gold | Heraeus Precious Metals GmbH & Co. KG | GERMANY |
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| Gold | Hunan Chenzhou Mining Co., Ltd. | CHINA |
| Gold | Hwasung CJ Co., Ltd. | KOREA, REPUBLIC OF |
| Gold | Inner Mongolia Qiankun Gold and Silver Refinery Share Company Limited | CHINA |
| Gold | Ishifuku Metal Industry Co., Ltd. | JAPAN |
| Gold | Istanbul Gold Refinery | TURKEY |
| Gold | Japan Mint | JAPAN |
| Gold | Jiangxi Copper Company Limited | CHINA |
| Gold | JSC Ekaterinburg Non-Ferrous Metal Processing Plant | RUSSIAN FEDERATION |
| Gold | JSC Uralelectromed | RUSSIAN FEDERATION |
| Gold | JX Nippon Mining & Metals Co., Ltd. | JAPAN |
| Gold | Kazakhmys Smelting LLC | KAZAKHSTAN |
| Gold | Kazzinc | KAZAKHSTAN |
| Gold | Kennecott Utah Copper LLC | UNITED STATES |
| Gold | Kojima Chemicals Co., Ltd. | JAPAN |
| Gold | Korea Metal Co., Ltd. | KOREA, REPUBLIC OF |
| Gold | Kyrgyzaltyn JSC | KYRGYZSTAN |
| Gold | L' azurde Company For Jewelry | SAUDI ARABIA |
| Gold | Lingbao Gold Company Limited | CHINA |
| Gold | Lingbao Jinyuan Tonghui Refinery Co., Ltd. | CHINA |
| Gold | LS-NIKKO Copper Inc. | KOREA, REPUBLIC OF |
| Gold | Luoyang Zijin Yinhui Gold Refinery Co., Ltd. | CHINA |
| Gold | Materion | UNITED STATES |
| Gold | Matsuda Sangyo Co., Ltd. | JAPAN |
| Gold | Metalor Technologies (Hong Kong) Ltd. | CHINA |
| Gold | Metalor Technologies (Singapore) Pte., Ltd. | SINGAPORE |
| Gold | Metalor Technologies (Suzhou) Ltd. | CHINA |
| Gold | Metalor Technologies SA | SWITZERLAND |
| Gold | Metalor USA Refining Corporation | UNITED STATES |
| Gold | METALÚRGICA MET-MEX PEÑOLES, S.A. DE C.V | MEXICO |
| Gold | Mitsubishi Materials Corporation | JAPAN |
| Gold | Mitsui Mining and Smelting Co., Ltd. | JAPAN |
| Gold | MMTC-PAMP India Pvt., Ltd. | INDIA |
| Gold | Morris and Watson | NEW ZEALAND |
| Gold | Moscow Special Alloys Processing Plant | RUSSIAN FEDERATION |
| Gold | Nadir Metal Rafineri San. Ve Tic. A.Ş. | TURKEY |
| Gold | Navoi Mining and Metallurgical Combinat | UZBEKISTAN |
| Gold | Nihon Material Co., Ltd. | JAPAN |
| Gold | Ögussa Österreichische Gold- und Silber-Scheideanstalt GmbH | AUSTRIA |
| Gold | Ohura Precious Metal Industry Co., Ltd. | JAPAN |
| Gold | OJSC "The Gulidov Krasnoyarsk Non-Ferrous Metals Plant" (OJSC Krastsvetmet) | RUSSIAN FEDERATION |
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| Gold | OJSC Kolyma Refinery | RUSSIAN FEDERATION |
| Gold | OJSC Novosibirsk Refinery | RUSSIAN FEDERATION |
| Gold | PAMP SA | SWITZERLAND |
| Gold | Penglai Penggang Gold Industry Co., Ltd. | CHINA |
| Gold | Prioksky Plant of Non-Ferrous Metals | RUSSIAN FEDERATION |
| Gold | PT Aneka Tambang (Persero) Tbk | INDONESIA |
| Gold | PX Précinox SA | SWITZERLAND |
| Gold | Rand Refinery (Pty) Ltd. | SOUTH AFRICA |
| Gold | Republic Metals Corporation | UNITED STATES |
| Gold | Royal Canadian Mint | CANADA |
| Gold | Sabin Metal Corp. | UNITED STATES |
| Gold | Samduck Precious Metals | KOREA, REPUBLIC OF |
| Gold | SAMWON Metals Corp. | KOREA, REPUBLIC OF |
| Gold | SAXONIA Edelmetalle GmbH | GERMANY |
| Gold | Schone Edelmetaal B.V. | NETHERLANDS |
| Gold | SEMPSA Joyería Platería SA | SPAIN |
| Gold | Shandong Tiancheng Biological Gold Industrial Co., Ltd. | CHINA |
| Gold | Shandong Zhaojin Gold & Silver Refinery Co., Ltd. | CHINA |
| Gold | Sichuan Tianze Precious Metals Co., Ltd. | CHINA |
| Gold | Singway Technology Co., Ltd. | TAIWAN |
| Gold | So Accurate Group, Inc. | UNITED STATES |
| Gold | SOE Shyolkovsky Factory of Secondary Precious Metals | RUSSIAN FEDERATION |
| Gold | Solar Applied Materials Technology Corp. | TAIWAN |
| Gold | Sumitomo Metal Mining Co., Ltd. | JAPAN |
| Gold | T.C.A S.p.A | ITALY |
| Gold | Tanaka Kikinzoku Kogyo K.K. | JAPAN |
| Gold | The Refinery of Shandong Gold Mining Co., Ltd. | CHINA |
| Gold | Tokuriki Honten Co., Ltd. | JAPAN |
| Gold | Tongling Nonferrous Metals Group Co., Ltd. | CHINA |
| Gold | Torecom | KOREA, REPUBLIC OF |
| Gold | Umicore Brasil Ltda. | BRAZIL |
| Gold | Umicore Precious Metals Thailand | THAILAND |
| Gold | Umicore SA Business Unit Precious Metals Refining | BELGIUM |
| Gold | United Precious Metal Refining, Inc. | UNITED STATES |
| Gold | Valcambi SA | SWITZERLAND |
| Gold | Western Australian Mint trading as The Perth Mint | AUSTRALIA |
| Gold | WIELAND Edelmetalle GmbH | GERMANY |
| Gold | Yamamoto Precious Metal Co., Ltd. | JAPAN |
| Gold | Yokohama Metal Co., Ltd. | JAPAN |
| Gold | Yunnan Copper Industry Co., Ltd. | CHINA |
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| Gold | Zhongyuan Gold Smelter of Zhongjin Gold Corporation | CHINA |
| Gold | Zijin Mining Group Co., Ltd. Gold Refinery | CHINA |
| Tantalum | Changsha South Tantalum Niobium Co., Ltd. | CHINA |
| Tantalum | Conghua Tantalum and Niobium Smeltry | CHINA |
| Tantalum | D Block Metals, LLC | UNITED STATES |
| Tantalum | Duoluoshan | CHINA |
| Tantalum | Exotech Inc. | UNITED STATES |
| Tantalum | F&X Electro-Materials Ltd. | CHINA |
| Tantalum | FIR Metals & Resource Ltd. | CHINA |
| Tantalum | Global Advanced Metals | UNITED STATES |
| Tantalum | Global Advanced Metals Aizu | JAPAN |
| Tantalum | Global Advanced Metals Boyertown | UNITED STATES |
| Tantalum | Guangdong Zhiyuan New Material Co., Ltd. | CHINA |
| Tantalum | Guizhou Zhenhua Xinyun Technology Ltd., Kaili branch | CHINA |
| Tantalum | H.C. Starck Co., Ltd. | THAILAND |
| Tantalum | H.C. Starck GmbH Goslar | GERMANY |
| Tantalum | H.C. Starck GmbH Laufenburg | GERMANY |
| Tantalum | H.C. Starck Group | GERMANY |
| Tantalum | H.C. Starck Hermsdorf GmbH | GERMANY |
| Tantalum | H.C. Starck Inc. | UNITED STATES |
| Tantalum | H.C. Starck Ltd. | JAPAN |
| Tantalum | H.C. Starck Smelting GmbH & Co.KG | GERMANY |
| Tantalum | Hengyang King Xing Lifeng New Materials Co., Ltd. | CHINA |
| Tantalum | Hi-Temp Specialty Metals, Inc. | UNITED STATES |
| Tantalum | Jiangxi Dinghai Tantalum & Niobium 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 | KEMET Blue Powder | UNITED STATES |
| Tantalum | King-Tan Tantalum Industry Ltd. | CHINA |
| Tantalum | LSM Brasil S.A. | BRAZIL |
| Tantalum | Metallurgical Products India Pvt., Ltd. | INDIA |
| Tantalum | Mineração Taboca S.A. | BRAZIL |
| Tantalum | Mitsui Mining & Smelting | JAPAN |
| Tantalum | Molycorp Silmet A.S. | ESTONIA |
| Tantalum | Ningxia Orient Tantalum Industry Co., Ltd. | CHINA |
| Tantalum | Plansee | AUSTRIA |
| Tantalum | Plansee SE Liezen | AUSTRIA |
| Tantalum | Plansee SE Reutte | AUSTRIA |
| Tantalum | QuantumClean | UNITED STATES |
| Tantalum | Resind Indústria e Comércio Ltda. | BRAZIL |
| Tantalum | RFH Tantalum Smeltry Co., Ltd. | CHINA |
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| Tantalum | Solikamsk Magnesium Works OAO | RUSSIAN FEDERATION |
| Tantalum | Taki Chemicals | JAPAN |
| Tantalum | Telex Metals | UNITED STATES |
| Tantalum | Tranzact, Inc. | UNITED STATES |
| Tantalum | Ulba Metallurgical Plant JSC | KAZAKHSTAN |
| Tantalum | XinXing HaoRong Electronic Material Co., Ltd. | CHINA |
| Tantalum | Yichun Jin Yang Rare Metal Co., Ltd. | CHINA |
| Tantalum | Zhuzhou Cemented Carbide | CHINA |
| Tin | Alpha | UNITED STATES |
| Tin | An Vinh Joint Stock Mineral Processing Company | VIET NAM |
| Tin | China Tin Group Co., Ltd. | CHINA |
| Tin | CNMC (Guangxi) PGMA Co., Ltd. | CHINA |
| Tin | Cooperativa Metalurgica de Rondônia Ltda. | BRAZIL |
| Tin | CV Ayi Jaya | INDONESIA |
| Tin | CV Gita Pesona | INDONESIA |
| Tin | CV Makmur Jaya | INDONESIA |
| Tin | CV Serumpun Sebalai | INDONESIA |
| Tin | CV United Smelting | INDONESIA |
| Tin | Dowa | JAPAN |
| Tin | Electro-Mechanical Facility of the Cao Bang Minerals & Metallurgy Joint Stock Company | VIET NAM |
| Tin | Elmet S.L.U. (Metallo Group) | SPAIN |
| Tin | EM Vinto | BOLIVIA |
| Tin | Estanho de Rondônia S.A. | BRAZIL |
| Tin | Feinhütte Halsbrücke GmbH | GERMANY |
| Tin | Fenix Metals | POLAND |
| Tin | Gejiu Kai Meng Industry and Trade LLC | CHINA |
| Tin | Gejiu Non-Ferrous Metal Processing Co., Ltd. | CHINA |
| Tin | Gejiu Yunxin Nonferrous Electrolysis Co., Ltd. | CHINA |
| Tin | Gejiu Zili Mining And Metallurgy Co., Ltd. | CHINA |
| Tin | Huichang Jinshunda Tin Co., Ltd. | CHINA |
| Tin | Jiangxi Ketai Advanced Material Co., Ltd. | CHINA |
| Tin | Linwu Xianggui Ore Smelting Co., Ltd. | CHINA |
| Tin | Magnu's Minerais Metais e Ligas Ltda. | BRAZIL |
| Tin | Malaysia Smelting Corporation (MSC) | MALAYSIA |
| Tin | Melt Metais e Ligas S/A | BRAZIL |
| Tin | Metallic Resources, Inc. | UNITED STATES |
| Tin | Metallo-Chimique N.V. | BELGIUM |
| Tin | Mineração Taboca S.A. | BRAZIL |
| Tin | Minsur | PERU |
| Tin | Mitsubishi Materials Corporation | JAPAN |
| Tin | Nankang Nanshan Tin Manufactory Co., Ltd. | CHINA |
| Tin | Nghe Tinh Non-Ferrous Metals Joint Stock Company | VIET NAM |
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| Tin | O.M. Manufacturing (Thailand) Co., Ltd. | THAILAND |
| Tin | O.M. Manufacturing Philippines, Inc. | PHILIPPINES |
| Tin | Operaciones Metalurgical S.A. | BOLIVIA |
| Tin | Phoenix Metal Ltd. | RWANDA |
| Tin | PT Alam Lestari Kencana | INDONESIA |
| Tin | PT Aries Kencana Sejahtera | INDONESIA |
| Tin | PT Artha Cipta Langgeng | INDONESIA |
| Tin | PT ATD Makmur Mandiri Jaya | INDONESIA |
| Tin | PT Babel Inti Perkasa | INDONESIA |
| Tin | PT Babel Surya Alam Lestari | INDONESIA |
| Tin | PT Bangka Kudai Tin | INDONESIA |
| Tin | PT Bangka Prima Tin | INDONESIA |
| Tin | PT Bangka Putra Karya | INDONESIA |
| Tin | PT Bangka Timah Utama Sejahtera | INDONESIA |
| Tin | PT Bangka Tin Industry | INDONESIA |
| Tin | PT Belitung Industri Sejahtera | INDONESIA |
| Tin | PT BilliTin Makmur Lestari | INDONESIA |
| Tin | PT Bukit Timah | INDONESIA |
| Tin | PT Cipta Persada Mulia | INDONESIA |
| Tin | PT DS Jaya Abadi | INDONESIA |
| Tin | PT Eunindo Usaha Mandiri | INDONESIA |
| Tin | PT Fang Di MulTindo | INDONESIA |
| Tin | PT HP Metals Indonesia | INDONESIA |
| Tin | PT Inti Stania Prima | INDONESIA |
| Tin | PT Justindo | INDONESIA |
| Tin | PT Karimun Mining | INDONESIA |
| Tin | PT Koba Tin | INDONESIA |
| Tin | PT Mitra Stania Prima | INDONESIA |
| Tin | PT Panca Mega Persada | INDONESIA |
| Tin | PT Pelat Timah Nusantara Tbk | INDONESIA |
| Tin | PT Prima Timah Utama | INDONESIA |
| Tin | PT Refined Bangka Tin | INDONESIA |
| Tin | PT Sariwiguna Binasentosa | INDONESIA |
| Tin | PT Seirama Tin Investment | INDONESIA |
| Tin | PT Stanindo Inti Perkasa | INDONESIA |
| Tin | PT Sumber Jaya Indah | INDONESIA |
| Tin | PT Timah (Persero) Tbk Kundur | INDONESIA |
| Tin | PT Timah (Persero) Tbk Mentok | INDONESIA |
| Tin | PT Tinindo Inter Nusa | INDONESIA |
| Tin | PT Tommy Utama | INDONESIA |
| Tin | PT Wahana Perkit Jaya | INDONESIA |
| Tin | PT Yinchendo Mining Industry | INDONESIA |
| Tin | Resind Indústria e Comércio Ltda. | BRAZIL |
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| Tin | Rui Da Hung | TAIWAN |
| Tin | Soft Metais Ltda. | BRAZIL |
| Tin | Thaisarco | THAILAND |
| Tin | The Nankang Nanshan Tin Co., Ltd. | CHINA |
| Tin | Tuyen Quang Non-Ferrous Metals Joint Stock Company | VIET NAM |
| Tin | VQB Mineral and Trading Group JSC | VIET NAM |
| Tin | White Solder Metalurgia e Mineração Ltda. | BRAZIL |
| Tin | Yunnan Chengfeng Non-ferrous Metals Co., Ltd. | CHINA |
| Tin | Yunnan Tin Group (Holding) Company Limited | CHINA |
| Tungsten | A.L.M.T. TUNGSTEN Corp. | JAPAN |
| Tungsten | Asia Tungsten Products Vietnam Ltd. | VIET NAM |
| Tungsten | Chenzhou Diamond Tungsten Products Co., Ltd. | CHINA |
| Tungsten | Chongyi Zhangyuan Tungsten Co., Ltd. | CHINA |
| Tungsten | Dayu Jincheng Tungsten Industry Co., Ltd. | CHINA |
| Tungsten | Dayu Weiliang Tungsten Co., Ltd. | CHINA |
| Tungsten | Fujian Jinxin Tungsten Co., Ltd. | CHINA |
| Tungsten | Ganxian Shirui New Material Co., Ltd. | CHINA |
| Tungsten | Ganzhou Huaxing Tungsten Products Co., Ltd. | CHINA |
| Tungsten | Ganzhou Jiangwu Ferrotungsten Co., Ltd. | CHINA |
| Tungsten | Ganzhou Non-ferrous Metals Smelting Co., Ltd. | CHINA |
| Tungsten | Ganzhou Seadragon W & Mo Co., Ltd. | CHINA |
| Tungsten | Ganzhou Yatai Tungsten Co., Ltd. | CHINA |
| Tungsten | Global Tungsten & Powders Corp. | UNITED STATES |
| Tungsten | Guangdong Xianglu Tungsten Co., Ltd. | CHINA |
| Tungsten | H.C. Starck GmbH | GERMANY |
| Tungsten | H.C. Starck Smelting GmbH & Co.KG | GERMANY |
| Tungsten | Hunan Chenzhou Mining Co., Ltd. | CHINA |
| Tungsten | Hunan Chuangda Vanadium Tungsten Co., Ltd. Wuji | CHINA |
| Tungsten | Hunan Chuangda Vanadium Tungsten Co., Ltd. Yanglin | CHINA |
| Tungsten | Hunan Chun-chang Non-ferrous Smelting & Concentrating Co., Ltd. | CHINA |
| Tungsten | Hydrometallurg, JSC | RUSSIAN FEDERATION |
| 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 Minmetals Gao'an Non-ferrous Metals Co., Ltd. | CHINA |
| Tungsten | Jiangxi Tonggu Non-ferrous Metallurgical & Chemical Co., Ltd. | CHINA |
| Tungsten | Jiangxi Xinsheng Tungsten Industry Co., Ltd. | CHINA |
| Tungsten | Jiangxi Xiushui Xianggan Nonferrous Metals Co., Ltd. | CHINA |
| Tungsten | Jiangxi Yaosheng Tungsten Co., Ltd. | CHINA |
| Tungsten | Kennametal Fallon | UNITED STATES |
| Tungsten | Kennametal Huntsville | UNITED STATES |
| Tungsten | Malipo Haiyu Tungsten Co., Ltd. | CHINA |
| Tungsten | Niagara Refining LLC | UNITED STATES |
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| Tungsten | Nui Phao H.C. Starck Tungsten Chemicals Manufacturing LLC | VIET NAM |
| Tungsten | Pobedit, JSC | RUSSIAN FEDERATION |
| Tungsten | Sanher Tungsten Vietnam Co., Ltd. | VIET NAM |
| Tungsten | Tejing (Vietnam) Tungsten Co., Ltd. | VIET NAM |
| Tungsten | Vietnam Youngsun Tungsten Industry Co., Ltd. | VIET NAM |
| Tungsten | Wolfram Bergbau und Hütten AG | AUSTRIA |
| Tungsten | Wolfram Company CJSC | RUSSIAN FEDERATION |
| Tungsten | Xiamen Tungsten (H.C.) Co., Ltd. | CHINA |
| Tungsten | Xiamen Tungsten Co., Ltd. | CHINA |
| Tungsten | Xinhai Rendan Shaoguan Tungsten Co., Ltd. | CHINA |
* A number of smelter names on this list are repeated because they (1) represent separate smelters with unique CID numbers but share similar names or (2) were used for processing more than one subject material.
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