April 2008, Shandong Chengwu Tianyuan Seaweed Indusrial Co.,Ltd. Inputs in Chengwu.The project mainly about chloro-alkaline, dye intermediates, intermediate and some organic chemical raw materials positioning New Hi-tech. Total investment in the whole project is 11.2 billion yuan,as most of the raw materials is kelp，the by-product along with solid and green products have a high use value.It can be used in livestock feed, fertilizer,etc.
　　 March 2009,the project of Sodimu Alginate put into production.