China Rare Earth Suppliers Halt U.S. Shipments: A Second Chokepoint Emerges Before Xi's Washington Visit

Highlights

• Chinese rare earth suppliers are self-deterring U.S. shipments even when export licenses are in hand, signaling a chokepoint beyond government policy.
• China controls roughly 90% of magnet rare earth refining and sintered permanent magnet production, making supply uncertainty itself a form of leverage.
• DFARS restrictions expanding January 1, 2027 will cover mining, refining, separation, and magnet production in China, raising compliance stakes further.
• The investment premium should shift toward companies that can demonstrate qualified, traceable, and commercially deliverable ex-China material across multiple supply chain links.
• Unpredictable delivery has strategic power: China does not need a formal embargo if customers cannot rely on shipments arriving.