Understanding the Standard Smelter List
Table of Contents

1. What is the Standard Smelter List?
The Standard Smelter List is a comprehensive and carefully curated database that includes verified smelters and refiners involved in the processing of conflict minerals, which are specific naturally occurring minerals—tin, tantalum, tungsten, and gold (collectively known as 3TG)—that can be associated with conflict regions.
Managed and regularly updated by the Responsible Minerals Initiative (RMI), this list serves as a vital resource for companies aiming to ensure their supply chains are free from conflict minerals and adhere to responsible sourcing practices. By consulting the list, companies can identify whether their suppliers are using approved smelters, facilitating greater transparency and accountability.
The list works in tandem with the Conflict Minerals Reporting Template (CMRT), a standardized reporting tool, to enable consistent, thorough, and accurate disclosure of mineral sourcing information, which is essential for complying with various regulations and promoting ethical business conduct.
2. Who Uses the Standard Smelter List?
The list is used by:
- Suppliers and manufacturers completing the CMRT
- Compliance teams conducting due diligence on mineral sourcing
- Auditors and regulators verifying supply chain transparency
- Customers requesting validated smelter data from their suppliers
3. How to Use the Standard Smelter List
When completing the CMRT:
- Refer to the Standard Smelter List to match smelter names and IDs.
- Ensure that all smelters reported in your CMRT are listed and validated.
- Use the list to verify RMI audit status, country of origin, and mineral type.
This helps ensure your CMRT submission is accurate and aligned with industry standards.
4. Where to Find the Standard Smelter List
You can access the latest Standard Smelter List and related resources on the RMI website: Standard Smelter List & Resources