China's Rare Earth Export Curbs Impact Japan's Supply Chain

• •China's rare earth exports to Japan fell to negligible levels, affecting production.
• •U.S. administration urged China to resume exports due to concerns over Japan's tech supply.
• •Japan is investing in alternative rare earth sources amid ongoing diplomatic tensions.

China's export controls on rare earths to Japan have resulted in negligible shipments, continuing a supply squeeze linked to diplomatic tensions over Taiwan. In May 2026, exports of critical rare earths like dysprosium and terbium were zero, with yttrium oxide shipments also minimal. These restrictions have disrupted Japan's rare earth magnet production, prompting companies to seek alternative sources. The U.S. has expressed concerns over the impact on Japan's high-tech industries and has urged China to resume exports. Japan's reliance on Chinese rare earths, which account for 70% of global production, has intensified the urgency for domestic and alternative sourcing. Recent investments in new refining facilities signal Japan's response to these challenges.