DuPont (Dupont) is the second largest chemical company in the United States, now listed on the NYSE, DuPont's history can be traced back to the founding of DuPont or pharmaceuticals in 1802. DuPont mainly produces plastics and rubber, including neoprene, nylon, plexiglass and so on. In the 2013 World Top 500 ranking, DuPont was ranked 267th.