Japan's Bold Bid for Resource Superpower Status: Deep-Sea Vessel 'Chikyu' Targets Rare Earths

As a historic step in Japan's marine resource development, the deep-sea research vessel 'Chikyu' departed Shimizu Port in Shizuoka Prefecture on January 12th, heading towards the waters around Minamitori Island, aiming to secure domestic rare earth minerals. This marks a groundbreaking, world-first challenge to attempt mining rare-earth-rich mud from the deep sea, at a depth of approximately 6,000 meters.

The purpose of this voyage is to conduct a demonstration experiment on the vast deposits of rare-earth-rich mud discovered within Japan's Exclusive Economic Zone (EEZ) off Minamitori Island. The 'Chikyu' is expected to reach the waters near Minamitori Island, approximately 2,000 kilometers from Tokyo, in about a week, where it will verify the technology for extracting mud from the deep sea to the surface.

Should this demonstration prove successful, large-scale mining could commence as early as 2027, potentially paving Japan's way to becoming a 'resource superpower'. It is believed that an astonishing 16 million tons of rare-earth-rich mud, enough to satisfy several centuries of demand, lie dormant around Minamitori Island. A stable domestic supply of rare earths is of paramount importance for strengthening Japan's industrial competitiveness and ensuring resource security.

On social media, numerous voices express anticipation, with comments such as 'Praying for success,' 'Beneficial for Japan,' and 'Towards a resource superpower.' However, there are also opinions pointing out the historical context where, despite long-known existence, development was not pursued due to profitability issues and other challenges. Geopolitical concerns, such as potential interference from unidentified vessels, have also been raised.

This endeavor aims to break the current reliance on specific countries for rare earth supplies and is attracting significant attention both domestically and internationally as a crucial project that could shape Japan's future. The successful mission of the deep-sea research vessel 'Chikyu' is expected to mark the dawn of a new era for Japan.

The context

Japan, a nation rich in technological innovation but poor in natural resources, has long sought to secure a stable supply of critical minerals. Rare earth elements (REEs) are indispensable for various high-tech industries, including electric vehicles, renewable energy technologies, and advanced electronics. Globally, the supply chain for REEs is heavily concentrated, primarily with China dominating both extraction and processing.

Minamitori Island, also known as Marcus Island, is a remote coral atoll belonging to Japan, located approximately 2,000 km southeast of Tokyo. Its significance lies in the extensive Exclusive Economic Zone (EEZ) surrounding it, which extends 200 nautical miles from its coast. This EEZ is where significant deposits of rare-earth-rich mud have been identified.

The deep-sea research vessel 'Chikyu' (meaning 'Earth') is a state-of-the-art scientific drilling vessel operated by JAMSTEC (Japan Agency for Marine-Earth Science and Technology). Historically used for scientific investigations into the Earth's crust and mantle, its deployment for resource exploration highlights the national importance placed on this project. This ambitious undertaking, attempting to extract resources from depths of 6,000 meters, represents a leap in deep-sea mining technology and a strategic move by Japan to diversify its resource acquisition and enhance its economic and national security by reducing its dependency on foreign suppliers for critical raw materials.