Top Blue Group Co.,Limited established in 1987. Headquartered in Weifang City, Shandong Province, it has five business divisions and more than 100 molecular companies, including 5 overseas subsidiaries.

The company has an annual output of 5 million tons of compound fertilizer, 1.2 million tons of urea, 100,000 tons of vehicle urea, 1 million tons of soda ash, 600,000 tons of ammonium chloride, 100,000 tons of sodium nitrate and sodium nitrite, 900,000 tons of salt, 400,000 tons of variety salt, 200,000 tons of sodium metabisulfite, 150,000 tons of calcium ammonium nitrate, 440,000 tons of monoammonium phosphate, 60,000 tons of yellow phosphorus. Its total assets exceed 10 billion yuan. More than 5,000 employees.