Greenfield has given domestic priority to the idea of "mining urban mines" and the industrial concept of "limited resources and unlimited circulation", has actively explored china's "city mines" mining model, and is committed to researching and industrializing the recycling and recycling of "city minerals" such as used batteries, end-of-life electronics, end-of-life automobiles and cobalt-cobalt nickel-nickel metal debris. It has become a model for the recycling of urban mines at the national and international levels. Recycler aims to build a national new internet+recycling system, an o2o platform for urban waste recycling, an electronic waste cloud recycling system, a recycler's website, micro-letters and an ap-based outreach platform. Recycler's waste products are mainly seven major types of electronic waste such as paper, plastics, batteries, electricity, small appliances, lamps and copper-dry iron. Using internet technology to serve the renewable resource industry, building recovery trading platforms online, in-depth integration of off-line resources, reshaping the traditional recovery model, changing the inefficient recovery and improving the recycling of recycled resources. The synergies generated by the use of scientific and technological services, such as the internet and big data, serve the general public to achieve a symbiotic and win-win model for citizens, recycling brothers, greenfield, merchants, and governments. Greenfield seizes new opportunities for transition and upgrades in the internet economy to maintain industry advantages. Recycler's app design is simple and operational and the recovery process is clear. Grimmy has a large number of professional service providers who provide detailed answers to the problems of recyclers。