Deep sea minerals will significantly lower recovery costs compared to new land-based mines. Given the high ore grade, four metals in one ore, and low infrastructure costs, deep sea minerals extracted from polymetallic nodules will be the lowest cost of all forms of mining. In addition, the ocean seabed is the world’s largest source of nickel, cobalt, and manganese, and selective harvesting will have the lowest environmental impact. For more details, see this blog post, “Why Will Deep Sea Mining Be Less Expensive Than Traditional Land-Based Mining?”
