Critical materials matter where supply concentration can constrain enterprise choices

Manage materials by value at risk, not spend

Critical materials are strategic because small volumes can enable vast downstream value. The IEA reports that, excluding rare earths, the average share of the leading refining country reached 72% in 2025; in several minerals, almost all recent supply growth came from the dominant supplier. Concentration in processing can therefore matter more than where ore is mined.

Traditional procurement metrics understate this risk. A low-spend magnet, catalyst or specialty metal may stop a high-margin product, while spot prices may not create new supply because permitting, refining know-how and customer qualification take years. Export controls and sovereign production decisions can make physical availability diverge from quoted market supply.

Leaders should map materials through the bill of materials to products, margins and strategic customers. For each, assess mining, refining and conversion concentration; substitution limits; inventory; recycling potential; qualification time and policy exposure. Supplier names alone do not reveal common upstream processors.

Mitigation needs a portfolio: engineering substitution, material efficiency, recovery and recycling, strategic stock, long-term offtake and support for diversified capacity. Each instrument works on a different horizon. Inventory absorbs interruption but cannot solve a structural deficit; new mines without refining may preserve the bottleneck.

Governance should connect procurement, engineering, strategy and capital. Scenario tests translate a material shortfall into lost output and customer priorities, while thresholds activate conservation or allocation. The goal is not self-sufficiency. It is to preserve enterprise choices when concentrated supply, policy and long development cycles make access uncertain.