The specification of our products as the following: 1. Content (choline chloride): 60% min(powder). 2. Loss on drying: 2% max. 3. Heavy metal (PB): 2%max 4. Trimethylamine: 300ppm max. 5. Carrier: corn cob 6. Particle size: 90% min. pass thru 20 mesh 7. Appearance: yellow or brown particles 8. Packing: 25 kg PEPA bags with two PE liners/ 20' FCL 16 tons without pallets Should you have any special request, do not hesitate to turn to us and we will come up with our offer in the shortest time. Our contact information: renben0707 at yahoo dot com.