Most firms rationally understand there is little benefit from gaining international recognition for their seabed claim
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However, most businessmen understand that it makes little difference whether or not, say, Congo, recognizes their right to harvest manganese nodules in the Pacific. Indeed, given the dynamics of seabed mining, it probably doesn’t even matter if other industrialized nations with firms capable of mining the ocean floor recognize one’s claim. In all but the most unusual cases, the seabed’s irregular geography and surplus of nodules make “poaching” uneconomical—it would make more sense to develop a new site than to attempt to overrun someone else’s.
According to U.S. foreign relations law, the United States may engage in deep seabed mining activities even if it does not accede to UNCLOS, provided that such activities are conducted without claiming sovereignty over any part of the deep seabed and as long as the mining activities are conducted with due regard to the rights of other nations to engage in mining.This position is also reflected in the Deep Seabed Hard Mineral Resources Act of 1980.