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JSR Life Sciences is focused on downstream bioprocessing materials and services including the manufacture and marketing of Amsphere™ A3, a protein A chromatography resin. With its US operations in Sunnyvale, CA, JLS operates a network of manufacturing facilities, sales offices and R&D labs in key markets throughout North America, Europe and Asia-Pacific. Leading edge biopharmaceutical Contract Development and Manufacturing Organization (CDMO) KBI Biopharma and Selexis, a global leader in mammalian cell-line generation technologies, are JSR Life Sciences companies.