• Former White House economic advisor Kevin Hassett identifies rare earth elements as a persistent and critical vulnerability for U.S. supply chains.
  • Recent Chinese export controls have slowed or frozen shipments, intensifying risks for the technology, automotive, and defense sectors.
  • U.S. efforts to diversify supply through domestic development and international partnerships are underway but face long-term hurdles.

Former White House economic advisor Kevin Hassett has reiterated that the United States' reliance on foreign rare earth elements represents a significant and ongoing bottleneck for the economy, a warning that comes as new Chinese export controls disrupt global supply chains. The materials, crucial for manufacturing everything from electric vehicles and consumer electronics to advanced military hardware, have become a focal point in broader geopolitical tensions.

According to people familiar with the matter, recent Chinese restrictions have effectively slowed or frozen shipments of these critical minerals to the U.S. and other nations. This has triggered urgent discussions within the Biden administration and among industry leaders about mitigating the severe supply chain risks. While U.S. officials have resumed negotiations with Beijing in recent weeks, a full restoration of predictable supply has not been achieved, leaving key sectors exposed.

“What we are seeing is the weaponization of supply chains,” one industry executive, who asked not to be identified due to the sensitivity of the talks, said. “It’s a stark reminder that economic security is national security.”

The U.S. government is responding with a multi-pronged strategy. This includes executive orders aimed at identifying and fast-tracking the development of domestic rare earth sources. There is also a concerted push to negotiate new supply partnerships with countries like Ukraine and to explore reserves in places like Greenland. However, building out domestic mining and processing facilities, not to mention establishing viable international alternatives, is a monumental task that most analysts believe will take a decade or more to meaningfully impact the supply landscape.

In the short term, the bottleneck is already translating into increased production costs and operational uncertainty for major manufacturers. Defense contractors, in particular, are said to be closely monitoring the situation for any impact on weapons systems production. The vulnerability extends beyond the U.S., with allies in Europe and Japan also fast-tracking their own efforts to secure alternative supplies from Australia and Malaysia.

The situation underscores a long-identified strategic weakness. Past interruptions, like the 2010 dispute between China and Japan, provided a preview of the potential disruption, but the current integration of these elements into modern technology makes the present challenge far more acute. With China further tightening its grip through a new export licensing system set for April 2025, the window for developing solutions is narrowing. For now, the rare earth bottleneck remains a potent point of leverage for Beijing and a critical vulnerability for Western economies.