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Shandong Dongjia Group Co., Ltd., founded in 2002, has four wholly-owned and holding companies, covering an area of 700000 square meters, with more than 2200 employees, including nearly 600 scientific and technological personnel. The Group has an annual output of 160000 tons of titanium oxide, 900000 tons of sulfuric acid and 60000 tons of ammonium sulfate, and has developed into one of the largest titanium oxide production bases in Asia.