Japanese Prime Minister Sanae Takaichi directed cabinet ministers to advance industrial-scale rare earth mining development in offshore waters near Minamitorishima Island, Ogasawara Village, Tokyo, with a target to commence substantial operations within fiscal year 2027. The directive aims to reduce Japan's dependence on China's dominance in critical minerals supply chains. China has historically leveraged rare earth export restrictions as a diplomatic and economic tool, notably limiting exports to Japan following the 2010 Senkaku Islands collision incident, prompting Tokyo to pursue alternative sourcing strategies amid ongoing U.S.-China technology competition and regional geopolitical tensions.
Japan Plans 350-Ton Daily Extraction at 6000-Meter Depth
The project targets daily extraction, transport, and refining of 350 tons or more of seabed clay sediment containing rare earth elements. The Japan Agency for Marine-Earth Science and Technology successfully collected rare earth-bearing sediment in February from waters approximately 6000 meters deep near Minamitorishima Island. Minamitorishima, located at Japan's easternmost point far from Tokyo mainland, represents a potential key source for Japan's rare earth self-sufficiency.
China Restricted Rare Earth Exports After 2010 Senkaku Incident
Rare earth elements are critical components in electric vehicles, wind power generation, precision motors, radar systems, missiles, semiconductor equipment, medical devices, and high-tech manufacturing. China maintains long-term advantages in global rare earth refining and supply chain control, repeatedly using export controls as diplomatic and economic leverage. Following the 2010 Senkaku Islands collision incident, China limited rare earth exports to Japan, demonstrating to Tokyo the risks of single-source dependence for critical minerals. Current U.S.-China technology competition, Japan-China tensions, and elevated Taiwan Strait risks reinforce Japan's rationale for diversifying away from exclusive Chinese supply sources.
Government Allocates 3 Trillion Yen for Marine Development by 2040
The Japanese government plans public-private investment exceeding 3 trillion yen in the marine sector by fiscal year 2040. Deep-sea mining involves high costs and technical complexity, with refining and commercialization requiring extended timelines. Japan has committed long-term resources to transform ocean resources into economic security tools, redefining national power beyond military assets and semiconductors to include seabed resources, extraction technology, refining capacity, and supply chain resilience.
FAQ
What did Prime Minister Sanae Takaichi order regarding Minamitorishima rare earth mining?
Prime Minister Sanae Takaichi directed cabinet ministers to advance industrial-scale rare earth mining development in offshore waters near Minamitorishima Island, with a target to commence substantial operations within fiscal year 2027. The project plans daily extraction, transport, and refining of 350 tons or more of seabed sediment.
Why is Japan developing rare earth mining at Minamitorishima?
Japan aims to reduce dependence on China's dominance in critical minerals supply chains. China restricted rare earth exports to Japan after the 2010 Senkaku Islands collision incident, demonstrating the risks of single-source dependence. Rare earth elements are essential for electric vehicles, precision motors, semiconductor equipment, and high-tech manufacturing.
How much will Japan invest in marine development by 2040?
The Japanese government plans public-private investment exceeding 3 trillion yen in the marine sector by fiscal year 2040. The Japan Agency for Marine-Earth Science and Technology successfully collected rare earth sediment in February from 6000-meter-deep waters near Minamitorishima Island.
