China's Yttrium Export Controls Disrupt US Defense Production
China's export controls on rare earth elements have reportedly slashed U.S. shipments of yttrium from 333 tons to just 17 tons. The restriction has caused a 69-fold price spike and halted the production of coatings for jet engines, highlighting a critical vulnerability in the U.S. aerospace and defense manufacturing supply chain ahead of upcoming trade negotiations.
- Yttrium is a critical component in thermal barrier coatings for jet engines, high-powered lasers used for targeting and missile defense, and various radar and communication systems. The U.S. is 100% import-reliant for yttrium, with China being the primary source. - This is not the first instance of China leveraging its dominance in rare earth elements; in 2010, it halted certain mineral exports to Japan amid a territorial dispute, causing global price spikes. China's strategy has involved a multi-year progression of adjusting export tariffs and quotas to manage supply and encourage domestic industry. - In response to supply chain vulnerabilities, the U.S. Department of Defense has been allocated funding through the Defense Production Act to support the onshoring and reshoring of critical mineral production. Additionally, the Department of Energy has announced $134 million in funding to support the recovery and refining of rare earth elements from unconventional sources like mine tailings and e-waste. - The U.S. is attempting to counter China's dominance by forming a preferential trade bloc with allies for critical minerals, which would involve coordinated price floors to prevent undercutting by artificially cheap materials. - From an internal audit perspective, the situation highlights the need for robust supplier diversification and strategic sourcing to mitigate risks from geopolitical disruptions. Companies are increasingly expected to conduct due diligence on their supply chains to ensure compliance with international trade laws and ethical standards. - For manufacturers, sudden spikes in raw material costs directly impact profitability and can lead to production delays. In a recent survey, 66.1% of manufacturers reported increased raw material costs due to tariffs, with many planning to delay capital investments or reduce labor costs as a result. - While the U.S. has rare earth deposits, such as the Mountain Pass mine in California, nearly all of the ore extracted is still sent to China for final processing. China controls over 90% of the downstream processing and refining of rare earths. - China's export controls have evolved beyond just the physical materials to include restrictions on the transfer of processing technologies and know-how, further solidifying its control over the global supply chain.
