How did discoveries of deep-sea mineral deposits influence the Law of the Sea Convention?

The discovery of commercially valuable mineral deposits on the ocean floor was a major factor in the development of the 1982 United Nations Convention on the Law of the Sea (UNCLOS).1

Scientists identified that the deep seabed contains rich deposits of manganese, cobalt, nickel, and other metals, particularly in nodules distributed across the ocean floor. Because these resources lie beyond national jurisdictions in the International Seabed Area, their status became a central point of negotiation.123

To address these findings, UNCLOS established a legal regime that designates these minerals as the "common heritage of humankind". Under this framework, the International Seabed Authority (ISA) was created to regulate and license exploration and mining activities. This system is designed to ensure that the benefits derived from these resources are shared equitably among all nations, with a specific focus on providing support to developing countries. By establishing this structure, the convention seeks to balance the potential for economic exploitation with the ethical necessity of global cooperation and environmental protection.23