We,Shandong Haihua Group Co., Ltd is a large-scale comprehensive marine chemical company.we list on the shenzhen stock Exchange in may 1988(stock code 000822).we are an important basic chemical raw material Manufactures.Products are exported all over the world.The Following is the catalog. 1.soda ash(anual output is 300 million tons) 2.sodium bicarbonate(20 million tons) 3.calicum chloride(20 million tons) 4. sodium nitrite & sodium nitrate(20 million tons) etc If you are intertested ,please contact me. Waiting for your feedback.