The seaweed in China is fine in characteristic. It ranks first in the assay of amino acid and taste, Nantong is the largest processing area in China for the production of strip and speckle seaweed the annual out put for dried seaweed reaches 11000million sheets the further processing industries have been developing rapidly, and Nantong has gradually formed the largest processing base for dry seaweed and Roasted seaweed in China formed the largest processing base for dry seaweed and roasted seaweed in China.The technology of processing and the output of the products have both reached the International standard. The products have been sold far in United States, Canada, Australia, New Zealand, Taiwan, Hongkong, South East Asia and so on.