美国、日本、英国、法国、德国、澳大利亚和加拿大等国,研究锰结核矿的勘探和开发技术都具有相当的规模。如美国深海探索公司(Deepsea Ventu-res Co.)(田纳西洲分公司),克讷克特公司(Kene-cott Co.)以及萨默公司(Summa Co.),和日本、西德、法国工业财团、国家政府已形成合营商业,另外日本、加拿大、欧洲的几个公司同美国也已形成了贸易网。锰结核矿早已成为商品化生产了。现将世界几个海洋锰结核矿勘探公司简介如下: The United States, Japan, the United Kingdom, France, Germany, Australia and Canada and other countries, research and exploration of manganese ore nodule technology has a considerable scale. Such as Deepsea Venture Co. (Tennessee), Kene-cott Co. and Summa Co., and Japan, West Germany and France Consortia, the state government has formed a joint venture business, while Japan, Canada, Europe, several companies have also formed with the United States trade network. Manganese nodules have long been commercialized. Now the world's several marine manganese nodule exploration company profile is as follows: