US scandium oxide national stockpile move signals rising critical mineral urgency

US Defense Logistics Agency

The US scandium oxide national stockpile decision marks a major shift in Washington’s critical mineral strategy. The Defense Logistics Agency (DLA) has added scandium oxide to the National Defense Stockpile and is now seeking multi-year supply contracts. This move embeds the US scandium oxide national stockpile firmly within defense planning for semiconductors, electronics and advanced alloys.

Rio Tinto anchors US scandium oxide national stockpile supply

Rio Tinto currently stands as the only North American supplier able to meet the US scandium oxide national stockpile requirements. The company produces high-purity scandium oxide from titanium dioxide waste streams at its RTIT Quebec Operations in Sorel-Tracy, Canada. As a result, the DLA’s request for information found Rio Tinto alone could commit scalable scandium oxide supply.

The agency issued a May RFI on scandium metal and received responses from four companies. However, only Rio Tinto confirmed both capability and availability to supply scandium oxide into the National Defense Stockpile. This underscores how fragile current supply chains are for a material vital to next-generation electronics and aerospace alloys.

Scandium joins wider US critical minerals stockpile push

The scandium oxide tender sits within a broader push to harden US critical mineral supply chains. In early September, the DLA issued tenders and RFIs covering cobalt, bismuth, high-purity aluminum, scandium flake, niobium and ferro-niobium. Together, these moves align the US scandium oxide national stockpile effort with a multi-metal resilience agenda.

Rio Tinto first produced commercial-scale high-purity scandium oxide at Sorel-Tracy in 2022. That milestone made it North America’s only scandium oxide producer and a natural anchor for DNS procurement. Going forward, the DLA’s “indefinite quantity” contracts over five years could help underwrite new capacity, but they also highlight concentrated supplier risk.

The Metalnomist Commentary

Bringing scandium oxide formally into the US National Defense Stockpile confirms its elevation from niche alloying element to strategic asset. The reliance on a single qualified North American producer underscores both progress and vulnerability in the current supply chain. Expect US policymakers to encourage additional scandium by-product and standalone projects if demand from defense and semiconductors continues to rise.