Key facts
- China has significantly reduced exports of critical rare earth minerals to Japan.
- Japanese companies are increasingly citing rare-earth shortages as a business risk.
- The restrictions are impacting supply chains for electric vehicles, weapons, and electronics.
- Japan is seeking alternative supply sources through international cooperation and domestic recycling.
- The economic impact could be worse than a 2010 trade restriction incident.
Corporate Japan is issuing increasingly urgent warnings about the impact of China's restrictions on rare-earth mineral exports, which are critical components for a wide range of modern technologies. Since November, following comments by Prime Minister Sanae Takaichi regarding Taiwan, Beijing has significantly curtailed shipments of essential minerals like terbium, dysprosium, and yttrium oxides, vital for producing powerful magnets used in electric cars and advanced electronics.
Recent corporate filings to the Tokyo Stock Exchange reveal a doubling in mentions of rare earths since May, with a majority of these notices highlighting negative impacts or future risks due to export controls. Companies like Citizen Watch and Omron have publicly acknowledged these supply chain vulnerabilities, though the immediate financial impact varies depending on pre-existing stockpiles. Analysts warn that the current situation could be more severe than a similar trade restriction incident in 2010, given the expanded role of rare earths in contemporary supply chains, particularly with the rise of AI and electric vehicles.
In response, the Japanese government is actively pursuing alternative supply sources. Prime Minister Takaichi's administration has invested in subsidies and is collaborating with allies, including the United States, with whom a framework for coordinating critical minerals and joint stockpiling was established in October. Japan is also participating in a G7 initiative to enhance stockpile coordination and has initiated rare-earth recycling projects. However, the timeline and scale of these efforts remain uncertain, with experts suggesting that prolonged restrictions could lead to significant problems.