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Investing 101 · Deep Guide

Critical minerals: the supply concentration story.

15 min readUpdated May 2026

What critical minerals are, why supply concentration matters, US Defense Production Act funding, and the major listed producers and ETFs to know.

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What this guide covers

What critical minerals are, why supply concentration matters, US Defense Production Act funding, and the major listed producers and ETFs to know.

This guide is part of the Investing 101 series. Use the navigation below to read related guides, or go to the commodities directory to explore live price data.

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