Japan will begin test mining for rare-earth-rich mud from the deep seabed off Minamitori Island, some 1,900 kilometres (1,180 miles) southeast of Tokyo, in January next year, the head of the government-backed project said on Friday.Tokyo is…<p><p>https://www.marinelink.com/news/japan-begin-test-mining-rareearth-mud-527650</p></p>