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Diane Mastrull: Ecospan has plan for vegetable-based plasticsPhiladelphia InquirerEcospan, headquartered in Greenbrae, Calif., moved into 22000 square feet in the Whiteland Business Park in Exton last year. ED HILLE / Staff Photographer With all his talk about sugar cane, corn, casaba, and fungi, Jeff White sounded like someone with ... |