Sunwin Stevia, the trade mark of Qufu Shengren Pharmaceutical Co.,Ltd. Specialized in Stevia Extracts since 1995, covers full range of stevia products from stevia extract 90% through to Reb-A 99.8%, and enzymatically treated stevia, the cutting-edge technology on improving stevia taste, now Reb-A 99,8% and High purity Ezymatically treated stevia are exclusive products of Sunwin Stevia