This section is to describe the general situation and mineral characteristics of deep-sea polymetallic oxide resources and popularize the development history and current research status of deep-sea polymetallic oxide beneficiation and metallurgy technology.

1.The resources and characteristics of manganese nodules
2.Key technologies of beneficiation and metallurgy of polymetallic nodule ore
3.Research progress on beneficiation and metallurgy technology of polymetallic nodules in CRIMM