Image Credit: Nordroden/Shutterstock.com The Ellen MacArthur Foundation HolyGrail project, part of its New Plastics Economy program, might have found the answer to packaging waste sorting for the circular economy. Research from the first phase of the project identified chemical tracing and digital watermarking as being among the most promising waste sorting technologies that could provide high-quality recycling rates for post-consumer waste that the circular economy of the future needs. The second phase of HolyGrail is gaining commitments to adopt these tagging approaches from some of the biggest manufacturing names. The European Brands Association now investigates how digital watermarking could help them close the loop on the future circular economy.