This brief presents a scoping review of the developments related to deep-sea mining, an emerging industry that has received opposition from a coalition of 32 countries due to its negative environmental and social impact. However, the Norwegian government initiated an opening process for deep-sea mining activities in the Norwegian continental shelf in January 2024, but subsequently, in December 2024, the plans for further exploration were suspended due to opposition from environmental groups, international institutions, and the Socialist Left Party in Norway. The scoping review identifies the emerging political, economic, social, technological and legal debates related to deep-sea mining activities in the Norwegian context. The results in the brief provide an overview of the key scientific debates and the knowledge uncertainties related to deep-sea mining from the perspective of the different stakeholders (government, industry, scientific research community, NGOs). The findings in the scoping literature review extend the previous scholarship on deep-sea mining by consolidating the fragmented scholarship and identifying the points of convergence across them.