REINACH, Switzerland--(BUSINESS WIRE)--Evolva (SIX: EVE) and Valent BioSciences Corporation (VBC), a subsidiary of Tokyo-based Sumitomo Chemical Company, have signed an exclusive agreement to co-develop and commercialise a class of high-value active ingredients for use as next-generation agricultural bioactives. For competitive reasons, the ingredients are not being identified at this time. Bioactives are being used increasingly around the globe because they help growers improve crop yields wit