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Joint Due Diligence Standard Sites

The Copper Mark provides assurance of responsible sourcing practices in accordance with the OECD Due Diligence Guidance.

 

COMPLETED ASSESSMENTS

The following sites have completed a stand-alone assessment against the Joint Due Diligence Standard for Copper, Lead, Molybdenum, Nickel and Zinc.

Download a copy of this list

Company Name

Site Name

Country

Commencement Date

Report Publication Date

Report

"Step 5" Report

Boliden Mineral AB

Boliden Harjavalta Oy

Finland

2025/01/18

2025/05/06

Report





Here

Boliden Mineral AB

Boliden Kokkola Oy

Finland

2025/01/18

2025/05/06

Report





Here

Boliden Mineral AB

Boliden Odda AS

Norway

2025/01/18

2025/05/06

Report





Here

Boliden Mineral AB

Boliden Mineral AB (Rönnskär)

Sweden

2025/01/18

2025/05/06

Report





Here

Teck Metals Ltd.

Trail Operation

Canada

2025/01/26

2025/04/21

Report





Here

Vale Canada, Ltd.

Long Harbor Nickel Processing Plant

Canada

2025/05/16

2022/07/21

Report





Here

Vale Canada, Ltd.

Vale Copper Cliff Nickel Refinery

Canada

2025/05/16

2022/07/21

Report




Here

Vale Europe Ltd.

Clydach Refinery

United Kingdom

2022/07/18

2022/08/25

Report





Here

Aurubis AG

Aurubis Olen NV

Belgium

2022/07/21

2022/07/07

Report





Here

Glencore Plc

Glencore Canada Corporation – Canadian Copper Refinery

Canada

2023/02/14

2023/06/07

Report





Here

Glencore Plc

Glencore Nikkelverk AS

Norway

2023/02/14

2023/07/06

Report





Here

Glencore Plc

Mount Isa Mines Limited - Copper Refineries Pty Ltd

Australia

2023/02/14

2023/07/06

Report




Here

BHP

BHP Nickel West Pty Ltd

Australia

2023/09/06

2023/11/20

Report





Here

Grupo México

Southern Peru Copper Corporation, Peru Branch, Industrial Unit of Ilo

Peru

2023/09/07

2023/11/28

Report




Here

Grupo México

Southern Peru Copper Corporation, Peru Branch, Industrial Unit of Toquepala

Peru

2023/09/07

2023/11/28

Report





Here

Glencore Plc

Kazzinc LLC

Kazakhstan

2023/02/17

2023/12/05

Report





Here

Dowa Metals & Mining Co., Ltd.

Akita Zinc Co., Ltd.

Japan

2023/09/25

2023/11/30

Report




Here

MITSUI MINING & SMELTING Co., Ltd.

HIBI KYODOU SMELTING Co., Ltd.

Japan

2023/10/02


2024/11/27


Report




Here

MITSUI MINING & SMELTING Co., Ltd.

KAMIOKA MINING & SMELTING Co., Ltd.

Japan

2023/10/02

2023/11/30

Report




Here

MITSUI MINING & SMELTING Co., Ltd.

HIKOSIMA SMELTING Co., Ltd.

Japan

2023/10/02

2023/11/30

Report




Here

MITSUI MINING & SMELTING Co., Ltd.

HACHINOHE SMELTING Co., Ltd

Japan

2023/10/02

2023/11/30

Report




Here

MITSUI MINING & SMELTING Co., Ltd.

MITSUI MINING & SMELTING Co., Ltd. TAKEHARA Refinery

Japan

2023/10/02

2023/11/30

Report




Here

Toho Zinc Co., Ltd.

Annaka Smelter and Refinery

Japan

2023/10/12

2023/11/30

Report




Here

Toho Zinc Co., Ltd.

Toho Chigirishima Refinery Co., Ltd.

Japan

2023/10/12

2023/11/30

Report




Here

Onahama Smelting & Refining Co., Ltd.

Onahama Smelter & Refinery

Japan

2023/10/23

2023/11/30

Report





Here

Mitsubishi Materials Corporation

Naoshima Smelter & Refinery

Japan

2023/10/31

2023/11/30

Report





Here

Hosokura Metal Mining Co., Ltd.

Hosokura Metal Mining Co., Ltd.

Japan

2023/11/10

2023/11/30

Report





Here

Glencore Plc

Asturiana de Zinc S.A.U

Spain

2024/02/01

2024/08/28

Report





Here

Glencore Plc

Britannia Refined Metals Ltd

United Kingdom

2024/02/01

2024/08/28

Report





Here

Glencore Plc

Compania Minera Lomas Bayas

Chile

2024/02/01

2024/08/28

Report





Here

Glencore Plc

Philippine Associated Smelting and Refining Corporation (PASAR)

The Phillipines

2024/02/01

2024/08/28

Report





Here

Nyrstar Netherlands (Holdings) B.V.

Nyrstar Stolberg

Germany

2024/04/16

2024/09/01

Report





Here

Hindalco Industries Limited

Birla Copper

India

2024/07/16

2024/12/20

Report


label

Here

ASSESSMENTS IN PROGRESS

The following sites have committed to complete a stand-alone assessment against the Joint Due Diligence Standard for Copper, Lead, Molybdenum, Nickel and Zinc.

Download a copy of this list

Company Name

Site Name

Country

Commencement Date

Glencore Plc

Canadian Electrolytic Zinc Limited

Canada

2025/01/24


Glencore Plc

Nordenham Metall GmbH

Germany


2025/01/24

Nexa Resources S.A.

NEXA RECURSOS MINERAIS S.A. - Três Marias

Brasil

2025/03/20

Nexa Resources S.A.

NEXA RECURSOS MINERAIS S.A. - Juiz de Fora

Brasil

2025/03/20

Nexa Resources S.A.

Nexa Resources Cajamarquilla S.A.

Peru

2025/03/20

For more Information or to become a participant, please contact info@coppermark.org.

The information, materials and data provided on this website has been made available for informational purposes only and is of a general nature and is not intended to amount to advice on which you should rely. It has not been audited or verified by any third party and is subject to change at any time, without notice. The Copper Mark is not responsible or liable for any consequences of you or anyone else acting, or refraining to act, in reliance on the information on this website or for any decision based on it.

The Copper Mark is an assurance framework to promote responsible practices and to contribute positively to sustainable development.  It is not a free-standing sustainability framework or label and should not be used as such. Participants are committed to adhering to internationally recognised responsible operating practices, covering a wide range of environmental, social and governance issues.

For the avoidance of doubt, any certification awarded by the Copper Mark is based on information available to the Copper Mark at the time of the application and/or renewal, and at any time when significant changes or events are notified to the Copper Mark. The Copper Mark relies on the accuracy of information from applicants and reviewers and assessors and is not responsible for reviewing the accuracy or completeness of information.

To the fullest extent permissible under applicable law, the Copper Mark does not accept any responsibility or liability of any kind, with respect to the accuracy or completeness of the information, materials and data on this website.

01_Copper Mark_logo_RGB_Primary_Tagline_NoReg
  • About
    • Governance
    • Working Groups
    • Team
    • Grievance
  • Join Us!
  • Standards
    • Core Documents for the Standards
    • Joint Due Diligence Standard
    • Chain of Custody Standard
    • Pilot with Toward Sustainable Mining
    • Chain of Custody Standard
    • Standard Development
    • Recognition and Equivalence
  • Assurance
    • Stakeholders
    • Assessors
    • Training
    • The Copper Mark
    • The Molybdenum Mark
    • The Nickel Mark
    • The Zinc Mark
  • Participants and Partners
    • Participating Sites
    • Joint Due Diligence Standard Sites
    • Partners
  • Research
    • Research Projects
    • Monitoring and Evaluation
    • External Reviews of the Copper Mark
  • Resources
    • News
    • Events
    • FAQs
    • Reports
    • Document Directory
Search

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