Minerals reporting can be complex, but choosing the right template doesn’t have to be. The CMRT, EMRT, and AMRT each cover different mineral groups and compliance needs. Understanding their scopes helps you streamline reporting, meet regulatory expectations, and improve supply chain transparency.
Looking to automate CMRT/EMRT/AMRT workflows? Explore RMI Automation Module for smarter due diligence and real-time reporting.
Summary
- CMRT → For 3TG conflict minerals (tin, tantalum, tungsten, gold) and Dodd-Frank 1502 compliance.
- EMRT → For minerals beyond 3TG, originally cobalt & mica; newer versions cover copper, graphite, lithium, nickel, and more.
- AMRT → For additional or emerging minerals not covered by CMRT/EMRT; fully customizable.
What is the CMRT?
The Conflict Minerals Reporting Template (CMRT) is the standard questionnaire used to disclose the sourcing of tin, tantalum, tungsten and gold (3TG). These minerals often originate from conflict-affected or high-risk areas such as the DRC and adjoining countries, which is why regulators and customers require visibility into their supply chains. The CMRT supports compliance with the Dodd-Frank Act Section 1502 and is updated annually by the Responsible Minerals Initiative, typically including revised smelter lists and guidance.
For many companies, the CMRT is the starting point for mineral due diligence, helping structure supplier declarations and ensure consistency across reporting cycles.
Best for: companies reporting 3TG or responding to customer requests for conflict minerals compliance.
What is the EMRT?
The Extended Minerals Reporting Template (EMRT) is used to gather due diligence information on minerals beyond 3TG. It was initially focused on cobalt and natural mica, but newer versions now cover additional minerals such as copper, natural graphite, lithium and nickel, reflecting changes in global supply chains and regulatory expectations. The EMRT helps companies collect structured supplier data, assess risks and maintain transparency as reporting obligations expand.
Its broader scope makes it particularly relevant for industries where new critical minerals play a central role, such as batteries, electronics and energy transition materials.
Best for: organisations needing wider minerals due diligence across modern, multi-mineral supply chains.
What is the AMRT?
The Additional Minerals Reporting Template (AMRT) is designed for minerals that fall outside the scope of the CMRT and EMRT. It offers a flexible structure for reporting on emerging, niche or newly regulated minerals, making it useful for organisations operating across wide or evolving mineral portfolios. As supply-chain expectations broaden, the AMRT helps companies collect consistent data, address transparency requirements and prepare for future regulatory attention.
Its adaptable format is particularly valuable for businesses managing diverse minerals or anticipating shifts in due-diligence expectations.
Best for: companies with varied mineral portfolios or preparing for upcoming reporting requirements.
Key differences: CMRT vs EMRT vs AMRT
The CMRT, EMRT and AMRT differ in scope, mineral coverage and how each template defines what must be reported. These differences relate to which minerals are included, whether the list is fixed or extended, and how flexible the template is for adding additional materials.
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How to choose the right minerals reporting template
Choosing the right template starts with understanding which minerals are in scope for your organisation and matching them to the template designed to cover them. Regulatory requirements also play a role, since different regions and customers may expect specific formats. Supply-chain complexity and the level of detail needed for due diligence should also guide the decision. Finally, assess whether your internal reporting resources can support the data collection and verification each template requires.
Key steps:
- Identify minerals in scope
- Review regulatory and customer requirements
- Assess supply-chain complexity
- Evaluate reporting capacity
These steps can simplify the process of choosing an appropriate template. They ensure compliance and support responsible sourcing initiatives.
Best practices for minerals reporting and compliance
Effective minerals reporting relies on clear processes, reliable supplier information and ongoing awareness of regulatory changes. Establishing consistent data-collection procedures and working closely with suppliers improves accuracy and reduces follow-up work. Regular training also helps teams stay aligned with evolving expectations.
Key practices:
- Standardise reporting procedures
- Strengthen supplier engagement
- Maintain ongoing compliance training
Applying these practices supports smoother reporting cycles, reduces compliance risk and creates a more transparent supply chain that stands up to customer, regulatory and investor expectations.
Moving toward responsible minerals sourcing
Selecting the right reporting template is a key step in managing minerals responsibly. Aligning the CMRT, EMRT and AMRT with the needs of your supply chain helps ensure the information you collect is accurate and fit for purpose.
Applying solid reporting practices strengthens compliance and supports responsible sourcing efforts. These actions build transparency, reduce risk and reinforce trust with customers, regulators and stakeholders.
- Do I need all three templates?
No. Use the template that matches your mineral scope. - Is EMRT replacing CMRT?
No. CMRT remains required for 3TG; EMRT is for extended minerals. - What minerals are covered by EMRT?
Cobalt, natural mica, plus newer minerals like copper, graphite, lithium, and nickel. - When should I use AMRT?
When reporting minerals outside CMRT/EMRT — especially emerging or niche minerals. - How often are templates updated?
CMRT annually; EMRT/AMRT periodically, depending on regulatory shifts. - Suppliers don’t understand the template — what now?
Provide guidance or use platforms like beSirius to automate supplier support and validation.
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