FLUKE
Kimball Electronics
Tolomatic
Industrial Scientific
AHEAD
roboception
FLUKE
Kimball Electronics
Tolomatic
Industrial Scientific
AHEAD
roboception
By Swetha Sankar | Thu May 15 2025 | 2 min read

Table of Contents

As global supply chains grow more complex and regulatory pressure on responsible sourcing intensifies, companies must track the origins of minerals used in their products. Whether it’s to comply with mandatory regulations like the U.S. Dodd-Frank Act or to meet voluntary ESG and investor expectations, standardized tools such as CMRT, EMRT, and AMRT are now essential components of mineral due-diligence programs.

Let’s explore the key differences between these three reporting templates—Conflict Minerals Reporting Template (CMRT), Extended Minerals Reporting Template (EMRT), and Additional Minerals Reporting Template (AMRT)—and how they work together to support compliant, future-ready sourcing strategies.

What Is the CMRT?

The Conflict Minerals Reporting Template (CMRT) is the original standardized reporting tool created by the Responsible Minerals Initiative (RMI) to support supply-chain due diligence on the sourcing of 3TG minerals:

  • Tin
  • Tantalum
  • Tungsten
  • Gold

These minerals have historically been linked to financing armed conflict and human-rights abuses in the Democratic Republic of the Congo (DRC) and adjoining countries. Companies subject to Section 1502 of the U.S. Dodd-Frank Act or the EU Conflict Minerals Regulation rely on CMRT to collect supplier data, identify smelters and refiners, and determine countries of origin.

Key Details of CMRT

  • Latest Version: CMRT 6.5 (released April 25, 2025)
  • Regulatory Use: Mandatory for SEC filers and EU importers of 3TG
  • Structure: Supplier engagement, smelter/refiner lists, country-of-origin data, and company policy declarations

CMRT remains the foundational compliance tool for conflict-minerals regulation globally.

What Is the EMRT?

The Extended Minerals Reporting Template (EMRT) was introduced to expand mineral due diligence beyond 3TG into minerals associated with ESG, battery supply chains, and emerging regulation.

EMRT currently covers:

  • Cobalt
  • Mica
  • Copper
  • Lithium
  • Nickel
  • Natural Graphite

(Expanded mineral scope introduced in EMRT 2.0)

EMRT aligns with OECD Due Diligence Guidance and supports voluntary but increasingly expected reporting—particularly in connection with the EU Battery Regulation and broader EU Green Deal objectives.

Key Details of EMRT

  • Latest Version: EMRT 2.0 (released April 25, 2025)
  • Regulatory Use: Voluntary, ESG-driven; increasingly relied upon for battery and sustainability disclosures
  • Structure: Supplier declarations, smelter/refiner identification, and optional mine-level origin data

EMRT is now widely treated as the authoritative template for cobalt and mica due diligence.

What Is the AMRT?

The Additional Minerals Reporting Template (AMRT)—formerly known as the Pilot Reporting Template (PRT)—is RMI’s most flexible reporting tool. It enables companies to track up to 10 user-selected minerals per AMRT submission that fall outside the scope of CMRT and EMRT.

AMRT is designed to support early-stage risk identification for minerals that may be:

  • Flagged as critical raw materials by the EU or U.S.
  • Subject to NGO or customer scrutiny
  • Relevant to specific sectors or technologies

Examples include rare earth elements and other strategically important or emerging-risk materials.

Key Details of AMRT

  • Latest Version: AMRT 1.3 (released October 17, 2025)
  • Regulatory Use: Voluntary; insight-driven due-diligence and risk screening
  • Structure: Fully configurable; companies define which minerals to report and what data to collect

While AMRT is not mandated by regulation, it is increasingly used to evidence proactive supply-chain risk management.

Read the Conflict Minerals eBook: avoid CMRT/EMRT/AMRT audit failures.

Comparison: CMRT vs EMRT vs AMRT

Comparison Table CMRT vs EMRT vs AMRT.PNG

Why These Templates Matter

Regulators, investors, customers, and civil-society organizations increasingly expect companies to demonstrate traceability, transparency, and risk awareness across mineral supply chains.

Using CMRT, EMRT, and AMRT together helps organizations achieve:

  • Stronger supplier engagement and risk identification
  • Consistent, audit-ready documentation
  • Improved ESG credibility with stakeholders
  • Readiness for expanding regulatory coverage

Relying solely on mandatory reporting is no longer sufficient for long-term compliance resilience.

How Acquis Supports Responsible Minerals Reporting

From supplier outreach and validation to reporting automation, Acquis Compliance helps companies operationalize mineral due diligence at scale.


CMRT. EMRT. AMRT. Different scopes—one goal: transparent, ethical sourcing.

Last updated: January 2026 (aligned with CMRT 6.5, EMRT 2.0, and AMRT 1.3).

Topics

Responsible Sourcing

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Difference Between CMRT vs EMRT vs AMRT

The Conflict Minerals Reporting Template (CMRT)—currently at version 6.5 was developed by the Responsible Minerals Initiative (RMI) to support compliance with U.S. Dodd‑Frank Section 1502 and the EU Conflict Minerals Regulation. It focuses specifically on the four conflict minerals: tin, tantalum, tungsten, and gold (3TG), helping companies identify smelters, trace origin, and validate country of sourcing.
The Extended Minerals Reporting Template (EMRT) now at version 2.0 goes beyond 3TG to include cobalt, mica, copper, natural graphite, lithium, and nickel. It aligns with OECD due diligence guidance and supports voluntary ESG reporting, particularly under the EU Battery Regulation.
The Additional Minerals Reporting Template (AMRT) formerly known as the PRT is fully customizable, allowing reporting on any 1 to 10 minerals of concern beyond those covered in CMRT or EMRT. It serves strategic ESG and emerging risk transparency needs, not mandated by regulation.
Yes companies typically collect CMRT and EMRT templates from suppliers to document mineral sourcing at the facility level. They then use AMRT at a corporate level to aggregate data, track volumes/percentages, and summarize responsible sourcing across all minerals.
CMRT/EMRT : Excel-based, standardized dropdowns, focus on supplier-level smelter/refiner origins. AMRT : Adds mass-balance tracking allows input of sourcing percentages, constitutes enterprise-level summary rather than per-mineral declarations
CMRT : Mandatory for legal compliance with conflict minerals laws. EMRT : Voluntary, ESG‑driven due diligence aligned with extended minerals. AMRT : Fully voluntary, for customized strategic tracking and ESG reporting.
Start with CMRT if you handle 3TG minerals. Use EMRT if your supply chain includes cobalt, lithium, nickel, or mica and you plan ESG disclosures or align with EU regulations. Use AMRT if you need to report on other minerals (e.g. rare earths) or want a consolidated corporate-level view of sourcing performance.