On 7 Aug., 2015, the US Department of Commerce (USDC) made a preliminary decision on administrative review of anti-dumping of China-originated xanthan gum: the following duties should be levied on companies below. Neimenggu Fufeng Biotechnologies Co., Ltd.: 0.00%; Deosen Biochemical Ltd.: 5.14%; CP Kelco (Shandong) Biological Company Limited: 5.14%; Shanghai Smart Chemicals Co. Ltd.: 5.14%.

In 2014, along with the operation of its fourth branch plant, the first phase designed 48,000 t/a capacity xanthan gum of Deosen Biochemical Co., Ltd. (Deosen Biochemical) went into full capacity operation.