Additional Minerals Reporting (AMRT) — Non-3TG Due Diligence & Reporting

The AMRT (Additional Minerals Reporting Template) is a free, standardized tool from the Responsible Minerals Initiative (RMI) for collecting supply chain due diligence data on minerals not covered by the CMRT or EMRT. The CMRT covers the four conflict minerals (tin, tantalum, tungsten, gold - 3TG). The EMRT covers cobalt, natural mica, copper, natural graphite, lithium, and nickel. The AMRT fills the gap for everything else - any mineral of concern your company or customers want to track, up to ten minerals per template. Unlike the CMRT and EMRT, which have fixed mineral scopes, the AMRT’s scope is user-defined: you choose which minerals to include based on your supply chain risk profile, customer requirements, or emerging regulatory signals. The current version is AMRT v1.3, released October 2025, with the next version anticipated in Fall 2026.

The AMRT itself is not mandated by any specific regulation - unlike the CMRT, which supports SEC Dodd-Frank Section 1502 filings. However, the minerals it covers are increasingly subject to regulatory and customer-driven expectations. The EU Battery Regulation targets lithium, cobalt, nickel, and graphite (now covered by EMRT 2.0, but previously tracked via PRT/AMRT). The EU’s CSRD and CSDDD require demonstrable supply chain due diligence. The OECD Due Diligence Guidance applies broadly to all minerals from conflict-affected and high-risk areas, not just 3TG. And major OEMs and brand owners in electronics, automotive, and industrial sectors are proactively requesting AMRT data for minerals like manganese, bauxite, zinc, platinum group metals, and rare earths. Treating the AMRT as a proactive risk-screening tool - rather than waiting for a specific legal mandate - is the approach most forward-looking companies are taking.

That depends on your products, supply chain risk profile, and what your customers are asking for. Common minerals tracked via AMRT include aluminum/bauxite, manganese, zinc, platinum group metals, rare earth elements, and various niche minerals used in electronics, magnets, coatings, and specialty alloys. The practical approach: start with a risk screening of your BOM to identify which non-3TG, non-EMRT minerals are present in your products, then prioritize based on sourcing geography risk (conflict-affected or high-risk areas), regulatory trajectory (minerals likely to face future restrictions or reporting requirements), and customer requests (OEMs and retailers increasingly specifying additional minerals in their responsible sourcing policies). You can include up to ten minerals per AMRT, which is typically enough to cover the most material risks in a single reporting cycle.

The PRT was the AMRT’s predecessor - same tool, different name. RMI launched the PRT in November 2022 as an experimental template for non-CMRT/EMRT minerals. After nearly two years, RMI determined it had moved beyond the pilot phase and renamed it to AMRT with version 1.2 (October 2024). The rebranding wasn’t just cosmetic: RMI reported that the "pilot" label contributed to low supplier uptake, with many companies not recognizing the PRT as an official RMI template or treating it as optional. The AMRT name signals permanence and parity with the CMRT and EMRT as part of RMI’s core reporting template family. If you previously collected PRT data, those submissions remain valid - but going forward, use AMRT v1.3 or higher for current reporting cycles.

AMRT v1.3 (October 2025) added a Smelter Look-up tab containing a standardized list of known smelters, refiners, and processors for all minerals in AMRT scope. This is a significant maturity step - previously, AMRT users had to enter facility data as free text, making normalization and cross-company comparison difficult. The look-up tab mirrors how the CMRT and EMRT work: suppliers select from a standardized facility list, which enables automated normalization, status mapping, and red-flag identification. That said, facility coverage for many AMRT-scope minerals is still less mature than for 3TG or EMRT minerals. The RMI is actively building out these lists as AMRT data flows in from member companies. Over time, expect the smelter/processor lists to grow and eventually support conformance assessments similar to RMAP for 3TG.

Yes, and you should. All three templates follow the same structural logic: supplier outreach → template submission → validation → facility/smelter normalization → risk scoring → due diligence follow-up → evidence archiving. The data collection workflow, SLA management, escalation playbooks, and audit trail requirements are fundamentally the same. The differences are in mineral scope, template-specific field definitions, and which RMI facility list you map against. Running them through a single system - with a unified supplier portal, shared validation rules, and combined dashboards - eliminates the duplication of sending three separate survey requests to the same supplier, maintaining three separate tracking spreadsheets, and reconciling three separate smelter/facility lists. It also makes year-over-year carry-forward and change tracking cleaner, since you can see at a glance which suppliers updated which template, which facilities changed status, and where gaps remain across all mineral programs.