Article presents the methodology for operational research on the polymetallic nodules mining value chain and the assessment of crucial factors influencing its feasibility. Value chain has been analyzed and boundary assumptions having a substantial influence on the decision making process were identified. Geological, technical, economic, environmental and legislative components are related within the unambiguous framework of their functional interactions. Several decision-making tools are presented and the system of SWOT analysis was applied to identify positive and negative aspects. It should be understood, that project conditions are unique for particular evaluated mineral deposit and evaluation is linked to a particular time period.
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