China’s Geological Survey published a detailed deep‑sea atlas mapping mineral deposits across the East China Sea and Yellow Sea, underscoring Beijing’s push for ocean mining.

The atlas, built from over 10,000 samples, pinpoints cobalt, nickel and manganese hotspots, giving China a strategic edge in both resource extraction and submarine warfare. It also bolsters claims to disputed waters.

By publicly releasing the map, Beijing signals its intent to control critical‑metal supplies and challenge rivals’ maritime rights. Investors in mining and defense sectors should monitor how this data could shift supply chains and geopolitical tensions.

The move intensifies competition with Japan and the United States, both expanding their own seabed mining programs to reduce reliance on Chinese resources.