Yoshifumi Matsumura, the minister for ocean policy, highlighted the significance of this decision to explore natural resources in the expanded continental shelf, including cobalt-rich crusts with rare metals essential for electric vehicle batteries.
This action was part of Japan’s 2014 ocean policy. To extend the shelf beyond its exclusive economic zone, it needed approval under UN conventions. Following discussions with the United States, the expansion was finalized in December 2023.
China’s criticism of Japan’s move indicates a growing competition for rare earth minerals crucial for tech industries. With Japan focusing on economic security, this continental shelf expansion signifies efforts to secure essential resources for future development.