Wire · operational-macro
Japan Identifies Large Share Of Rare Earths In Deep-Sea Mud Off Remote Island
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◆ Geography
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Fusion42 · 26 July 2026 · Fusion42 review
Japan's research vessel Chikyu successfully retrieved rare-earth-rich mud from 6 km depths off Minamitori Island in February 2026, with analysis showing medium and heavy rare earths comprise 54% of total content. The government has not yet disclosed deposit size or total reserves, citing insufficient sampling data.
This Wire brief sits within Fusion42's coverage of Advanced Materials, and 4 sources have reported it between 24 Jul 2026 and 28 Jul 2026.
◆ ◆ The Wire takeaway
Japan just proved it can pull rare earths from the ocean floor at scale - the technical risk is gone, and the only question now is cost. If you sell equipment, processing, or logistics into rare-earth supply chains, there's a new source coming online that will break China's 70% market share.
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4 sources · first reported 24 Jul 2026 · latest 28 Jul 2026
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