GLG Life Tech Corporation, Vancouver, Canada, has signed a renewable five-year product supply agreement with International Flavors & Fragrances Inc. (IFF) for high-purity Rebaudioside C ("Reb C") extracts. The signing of the exclusive product supply agreement by GLG and IFF jointly leverages each company's strengths to pursue exploration and commercialization of Reb C, one of the 11 primary glycosides in the stevia leaf. Reb C has demonstrated its proficiency as a flavor modulator in food and beverage formulations and is expected to provide an exciting market opportunity for the companies.