Tateho Chemical Industries sells high-function and high value-added magnesia products, which have seawater-derived "bittern" as their primary ingredient and are manufactured at two plants, Ako (Japan) and Dalian (China).
　Tateho Chemical Industries uses crystal control technology, firing technology, and other distinctive, unmatched technologies to produce high value-added products under the internationally recognized "Tateho" brand. One standout product is Tateho Chemical Industries' magnesia for electromagnetic steel sheets, which boasts a more than 90% share of the global market. This additive is absolutely essential as an annealing separating agent to the function of high quality directional electromagnetic steel sheets incorporated into power plants, power transmission, power transformation and all other aspects of a power infrastructure. Tateho Chemical Industries also supplies many other magnesia products to a wide array of industry fields, including heater filler for home electric appliances and industrial equipment, electrode protective film for PDP, raw materials for ceramics, and pharmaceutical products and heavy chemicals.
　In recent years, Tateho Chemical Industries has worked with Nihonkaisui not only to ensure a stable supply of "bittern" produced from the salt-making process but also to conduct joint research geared towards generating new business for the seawater industry.

　Nihonkaisui is a comprehensive manufacturer of salt that commands the leading market share within Japan, and it is working to develop a range of business that makes effective use of seawater resources.
　The Salt Manufacturing Business, which involves the manufacture and sale of salt for both commercial and general consumer use, is carried out at three plants in Japan –the Ako, Sanuki and Onahama plants; at these plants, a reliable supply of high quality, safe salt products, such as not only edible salt and salt for food processing but also salt for melting snow and salt for use in boilers, are produced to suit individual customer needs and are distributed throughout Japan. The Onahama Plant has temporarily halted its production as a result of the Great East Japan Earthquake; however, the production network maintained by the two plants in western Japan is being fully utilized and every effort is being made to ensure the stability of salt distribution. (As of August 31, 2011)
　In addition to Salt Manufacturing Business, Nihonkaisui is developing environment-related products that effectively utilize seawater resources, such as magnesium hydroxide, to be used as a smoke gas treatment agent at factories, etc., and READ-F, to be used as a highly functional water contamination adsorbent and remover.
　Furthermore, in January 2011 at a specialized facility within the Ako Plant, a new production business has been started manufacturing potassium chloride from seawater to be used as a raw ingredient in fertilizers. Through this business, Nihonkaisui provides a stable supply of high-purity potassium chloride to Japanese fertilizer manufacturers.