Material Dependency Analyzer

Supply-chain attention naturally lands on the chips themselves and the fabs that make them, but some of the most acute vulnerabilities sit further upstream, in the raw materials that the whole industry quietly depends on. Specialty gases like neon, metals like gallium and germanium, rare earths, high-purity silicon — these are the inputs without which fabs simply stop, and several of them come overwhelmingly from a single country. When that country decides to impose export controls, as has already happened, a single policy choice can choke supply with no quick alternative.

What makes a material genuinely dangerous is the coincidence of three things. You have to depend on it heavily, its supply has to be concentrated in few hands, and there has to be no ready substitute. Any one of these alone is manageable: a concentrated material you barely use doesn't hurt you, and one you can swap out has a built-in off-ramp even if it's a near-monopoly. It's only when heavy dependence, concentrated supply and irreplaceability all align that you have a true chokepoint — which is why triage means looking at the product of all three, not any single alarming statistic.

The mitigations come in two timeframes. Stockpiles are the fast bridge: for a material with no near-term substitute, weeks of inventory is acute exposure and months buy time to react, which is exactly why governments and firms hold strategic reserves of critical materials. But stockpiles only defer the problem. The durable fix is reducing irreplaceability itself — qualifying alternative materials, redesigning to avoid the scarce input, developing new sources and new supplier geographies. That work is slow and expensive, but it permanently lowers a risk that reserves can only postpone.

Use this analyzer to score your basket on all four drivers, find the materials where dependence, concentration and irreplaceability converge, and flag thin stockpiles for immediate reserve-building while substitution work proceeds. Then assess the disruption likelihood of the source countries in the China Risk calculator and your exposure to material and product export controls in the Export Control Checker.