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Precious Metal Refining

To address industry requirements for conformant Tantalum products, our Newton, MA facility is a “conformant” Tantalum Refiner through participation in the Responsible Minerals Initiative (RMI) Responsible Minerals Assurance Process (RMAP) and included on the RMI Conformant Tantalum Smelter List.

This endorsement demonstrates Materion’s commitment to conducting business in a manner that protects people and the environment. Through the RMAP, Materion validates that the tantalum-containing products we supply are derived from conformant sources.

RMAP Certification

The RMAP is a global initiative developed by the RMI to provide a credible system for companies to substantiate responsible sourcing. The RMAP uses an independent third-party assessment of smelter/refiner management systems and sourcing practices to validate conformance verifies that relevant materials are from conformant sources. Upon successful review by the organization’s Audit Review Committee (ARC), the applicant site is added to the RMI Conformant Smelter and Refiners List. Materion’s Newton facility continues to be listed as a conformant Tantalum Refiner.

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Legislation Drives “Conformant” Status

Publicly traded companies such as Materion Corporation are required to comply with the Conflict Minerals Rule, 1502 of the Dodd-Frank Wall Street Reform & Consumer Protection Act and EU Regulation 2017/871. The overall goal of these rules is to eliminate the human rights abuses and corruption occurring in conflict-affected and high-risk areas (CAHRAs) by discouraging the purchase and use of Conflict Minerals that directly or indirectly finance or benefit groups in CAHRAs.

Materion’s Responsible Minerals Sourcing Policy

Materion has had in place a Responsible Minerals Sourcing Policy that ensures that its products meet the due diligence and reporting requirements of the U.S. Securities and Exchange (SEC) rule under the Conflict Minerals Rule and other international rules and regulations. Using tantalum primarily derived from Materion’s own reclaim and recycling programs enables adherence under this policy as well as maintaining RMI Conformance status.

As a company with more than 100 years of experience in refining precious metals, Materion is committed to responsible stewardship practices that include the use of conformant minerals.

Tantalum Conformant Products:

Specialty Metal Services:

Variety of Tantalum Alloys including:


Materion Advantages:

  • Global supplier of over 1800 materials for thin film deposition
  • Specializing in high purity Gold, Silver, Palladium, & Platinum 
  • Specialty metals Tantalum and Niobium
  • R&D resources available
  • Broad range of manufacturing & analytical capabilities

Environmental, Social and Governance

Since 1931, with extensive experience in refining precious metals, Materion is committed to conducting business in a manner that protects people and the environment as per our Responsible Minerals Sourcing Policy. Any exterior tantalum material sources used in manufacturing beyond our own reclaim are verified to be conformant.