Chapter 2 addresses the importance of the deep seabed beyond national jurisdiction and charts the rise in mining activities within it, drawing on scientific, geological and technological analysis, where appropriate, to place deep seabed mining in its broader context. In order to do so, Chapter 2 assesses the scope of the deep seabed beyond national jurisdiction (in contrast to the maritime zones under national jurisdiction, including the continental shelf). The chapter then examines the types of mineral resources that the deep seabed contains (including the potential for rare earth elements). Thereafter, the chapter explores the likely viability of deep seabed mining, both in terms of its impact on the marine environment, and in light of technological challenges and market prospects. Chapter 2 also provides an overview of the current extent of mining activities authorised by the International Seabed Authority (ISA).