... from stevia leaf. Rebaudioside A (Reb A or RA): 40%, 60%, 80% ,90%,95%,96%,97%,98%,99%,etc we are specialised ... in producing Stevia Rebaudioside -A .It is also called Reb A or RA.Our ... specification is as follow. TypeProduct CodeDescriptionTotal SteviolReb-ASTVReb-C & DASweetnessStevia Rebaudioside -A SG99RA9999% Rebaudioside-A99%~99.20%99%~99. ...