In 1992, we firstly developed and tried to produce Optical Brightener OB.
In 1995, we started to manufacture 2,5-thiophenedicarboxylic acid(also called OB acid) and other kinds Optical Brighteners( OB-1, FP-127, ER) .
In 2005, we started to make Biphenyl series, Optical Brightener CBS-X and Heat Transfer Fluids. the capacity of Biphenyl has been over 8000mt/a. Heat Transfer Fluids can reach 10000mt/a capacity.
In 2012, we started to expand production capacity of some products, such as 6500mt/a diphenyl oxide, 3000mt/a p-toluic acid, 3800mt/a partial hydrogenated terphenyl, 2000mt/a 2-formylbenzenesulfonic acid sodium salts, 600mt/a ferrocene.