
A research arm of the Chinese government said it had published an atlas of deep-sea mineral deposits, highlighting Beijing’s ambitions to mine the ocean floor and underscoring its disputed claims to waters that neighboring nations consider theirs.
Experts say the maps, in addition to pinpointing mineral deposits found in the deep ocean, give China’s military a thorough understanding of the seafloor in strategically important waters, providing an advantage if submarine warfare were to break out.
The announcement this month by the China Geological Survey puts pressure on other countries that have been ramping up their own seabed mining efforts, in part to reduce their dependence on China for critical minerals and rare earth elements. Ocean sediments are rich in valuable resources including cobalt, nickel, and manganese.
“China is pouring enormous resources in an effort to emerge as a world-leading oceanographic power,” said Bruce Jones, a naval affairs and foreign policy expert at the Brookings Institution. The United States historically dominated in ocean-science fields, he said. Now, China is closing the gap, increasing China’s military capabilities and equipping it with the knowledge needed to fight underwater, Dr. Jones said.
With mapping of this nature, “you can use it for science, and you can use it for warfare,” Dr. Jones said. “It’s a rare-earth play, it’s a scientific play, and it’s a strategic play all at once,” he said.