Japan Achieves World Record Deep-Sea Rare Earth Extraction Near Minami-Torishima

Historic Deep-Sea Extraction

Japan has successfully completed a pioneering mission, extracting rare-earth-rich mud from the seabed near Minami-Torishima Island at an unprecedented depth of approximately 6,000 meters. This achievement, confirmed on February 1, 2026, sets a new world record for the deepest extraction of such materials. The operation was carried out by the deep-sea drilling vessel Chikyu, managed by the Japan Agency for Marine-Earth Science and Technology (JAMSTEC).

The remote Minami-Torishima Island, an atoll located about 1,950 kilometers southeast of Tokyo, lies within Japan's exclusive economic zone (EEZ), making the discovery and extraction strategically significant for the nation.

Vast Reserves and Critical Elements

The presence of rare-earth-rich mud in the waters around Minami-Torishima was first identified by a research team from the University of Tokyo in 2011 and 2013. Subsequent surveys have indicated that the area holds an estimated 16 million tons of rare earth deposits, positioning it as the third-largest reserve globally. The extracted sediment contains crucial heavy rare earth elements such as yttrium, terbium, and dysprosium, which are vital for the manufacturing of high-tech products including electric vehicle motors, missile guidance systems, industrial magnets, smartphones, computers, and semiconductors.

Strategic Independence and Geopolitical Context

This deep-sea extraction is a critical step in Japan's long-term strategy to secure a stable supply of rare earths and reduce its significant dependence on imports, particularly from China. China currently dominates the global rare earth market, processing over 90% of the world's supply. Japan relies on China for approximately 60% to 70% of its rare earth imports. The urgency of this initiative has been underscored by recent geopolitical developments, including China's introduction of new controls on the export of dual-use rare-earth materials to Japan in early January 2026.

Prime Minister Sanae Takaichi hailed the achievement as 'a first step toward industrialization of domestically produced rare earth in Japan,' emphasizing its role in national economic security. Deputy Chief Cabinet Secretary Masanao Ozaki further described it as 'a meaningful achievement from the perspectives of economic security and comprehensive ocean development.'

Challenges and Future Prospects

While the successful extraction marks a significant scientific and technological milestone, officials have clarified that this was a research operation and not yet commercial production. The path to full-scale commercialization presents considerable engineering and logistical challenges, including the need for specialized equipment to withstand extreme deep-sea pressures and the development of efficient processing methods. The mud cannot be processed offshore; it would require dewatering at Minami-Torishima before being transported to mainland Japan for separation and refining.

The government-funded project has invested approximately ¥40 billion ($256 million) since 2018. Japan aims to commercialize the extraction of rare-earth-rich mud from Minami-Torishima Island by around 2030. However, experts note that significant hurdles remain, including extraordinary capital and operational costs, unresolved environmental permitting for seabed mining, and the critical bottleneck of establishing sufficient refining capacity outside of China.