This shipment is sample for customer trial in lab scale. There are several grade of Lignosulfonate powder and liquid. I will distribute these sample to potential Ceramics customer in Thailand to do lab test.
Lignosulfonate was extracted from wood. So, we called it as Biopolymer. Non toxic, non irritant and non hazardous. I use to import this type of sample many time. Please see more detail for it Hs code also the MSDS.