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An Economic Feasibility Study of Manganese Nodule in Korea Area: Clarion-Clipperton Fracture Zone
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  • Journal title : Ocean and Polar Research
  • Volume 26, Issue 2,  2004, pp.187-197
  • Publisher : Korea Institute of Ocean Science & Technology
  • DOI : 10.4217/OPR.2004.26.2.187
 Title & Authors
An Economic Feasibility Study of Manganese Nodule in Korea Area: Clarion-Clipperton Fracture Zone
Nam, Kwang-Hyun; Oh, Wee-Yeong; Kwon, Suk-Jue;
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The purpose of this paper is to investigate economic feasibility of manganese nodules in Korea area (Clarion-Clipperton Fracture Zone). We assumed that the production scale of manganese nodules were 3.0MT or 1.5MT and analyzed that the capital cost and operating cost were estimated in the four sectors, exploration, mining, transportation and metallurgical process. The capital cost and operating cost evaluation reflects the latest technical practices. First, for analyzing economic feasibility, the scenario suggests that the production of 4 metals can be made for 25 years. Assuming the discount rate at 8.0%, equity capital at 50% and tax at 27%. When manganese nodule were mininged 3.0 MT, economic feasibility analyses showed that IRR was 12.8 and pay-back period was 9.2 years, and when manganese nodules were mininged 1.5 MT, economic feasibility analyses showed that IRR was 4.0 and pay-back period was 11.8 years. This study indicated there is economic validity of at the product of manganese nodules 3.0 MT. In addition, we carried out a sensitivity analysis at the change of cobalt price on mining 1.5 MT. The result of sensitivity analysis clearly showed that economic validity is high at increasing of cobalt price 50% up.
Economic feasibility study;Manganese nodules;Clarion-Clipperton Fracture Zone;
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