Henan Julong Biological Engineering Co., Ltd, founded in 2004 andlocated in Ruzhou city, Henan Province, is an integratedbio-fermentation products manufacturer.       It has a total of 7 main products such as CornStarch, Corn Gluten Meal, Corn fibers, Crystallized Glucose, CornOil, L-Tryptophan and L-Threonine.   The Company has passed the certification ofISO9001 International Quality Management System, ISO24001Environmental Management System and FAMI QS.     In July, 2008, Julong R&D Center wascompleted and put into use, focus on L-Tryptophan production, andhas been awarded "HENAN provincial  R &D Center".    We manufactured L-Tryptophan from 2009. In2012, we produced 600 MT of    L-Tryptophan in one year.  In the year of2013, the new two L-Tryptophan producing line has been put into usein April and October,  In 2014 we produce 400 MT ofL-Tryptophan one month right now.   We started to produce L-Threonine from2011.