On a global scale, the main suppliers of aramid fiber 13 13 are DuPont, Yantai Taihe New Materials and Teijin of Japan. Dupont's production capacity is about 25,000 tons, and its trade name is Nomex, which is in a monopoly position in the world. Yantai Taihe New Materials has an annual production capacity of 5,600 tons and is the second largest supplier of aramid fiber 13 13 in the world. Its trade name is Tametar, which is the main competitor of DuPont company in the United States. Teijin of Japan is also one of the earliest suppliers of aramid fiber 13 13 in the world, with a production capacity of about 2,300 tons and a trade name of Conex.