Phosphorous is one of the most important elements for life. Johoku now provides about Numerous Kinds of phosphorous compounds, represented by the above chemical structures used as heat stabilizers, antioxidants, quality modifiers for plastics/fibers/ rubbers, extreme-pressure modifiers, antioxidants for lubricating oils and intermediates for use in the medical and agricultural industries. Phosphorous compounds have a large number of appplications in a wide range of fields, and novel appplications for these important compounds are being discovered at an increasing rate.