So far,With good quality and competitive prices,we have established a good Cooperation with MARS,PROVIMI,BRANTAG,MCASSAB and about 160 compaies aroud the world.And have already passed the factory audit from MARS,PROVIMI and BAYER.Our products are below:Choline Chloride 50% corn cob;Choline Chloride60% corn cob;Choline Chloride70% corn cob.Choline Chloride 50% silica;Choline Chloride 70% liquid;Choline Chloride 75% liquid.L-threonine 98.5% feed grade.Vitamin B2 80% .feed grade.