US Warned of China Rare Earth Curbs if Section 301 Tariffs Expand

US Warned of China Rare Earth Curbs if Section 301 Tariffs Expand

Asia Times – Defense
Asia Times – DefenseMar 13, 2026

Why It Matters

The dispute threatens to disrupt U.S. supply chains for defense‑critical rare earths and could derail high‑level diplomatic talks, amplifying trade and security risks.

Key Takeaways

  • US opens Section 301 probes on 16 nations, including China
  • China threatens rare‑earth export curbs and soybean purchase cuts
  • US defense relies on limited Chinese rare‑earth stockpiles
  • Phase One soybean commitments stalled, now potential leverage
  • Forced‑labor accusations add another layer to trade dispute

Pulse Analysis

The latest round of Section 301 investigations marks a strategic shift in U.S. trade policy, expanding beyond traditional tariff battles to include forced‑labor allegations across 60 economies. By targeting 16 nations, the USTR aims to pressure trading partners into concessions while addressing perceived excess capacity in sectors such as steel, batteries, and semiconductors. This broader approach reflects Washington’s desire to leverage trade tools amid domestic political pressures and rising energy costs, setting the stage for heightened diplomatic activity.

China’s response hinges on two powerful levers: rare‑earth elements and soybean imports. American defense manufacturers depend on a narrow stockpile of Chinese rare‑earth magnets for jet engines, stealth aircraft, and advanced electronics, making any export curbs a potential flashpoint for national security. Simultaneously, Beijing’s commitment under the Phase One Agreement to purchase billions of dollars in U.S. agricultural goods, especially soybeans, provides a bargaining chip that could be withdrawn to signal retaliation. The dual threat underscores how critical minerals and food commodities have become intertwined in geopolitical negotiations.

With a Trump‑Xi summit on the horizon, both sides are testing the limits of their leverage. Beijing’s warning signals a willingness to use trade measures as retaliation, while Washington seeks to extract concessions without sparking a full‑scale trade war. The episode highlights the urgency for the United States to diversify its rare‑earth supply chain, a process that could take a decade, and to secure alternative agricultural markets. How the summit resolves these tensions will shape the trajectory of U.S.–China economic relations and the stability of global supply networks.

US warned of China rare earth curbs if Section 301 tariffs expand

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