Long term operation of plastic raw materials from various countries, such as Teijin from Japan, Baoli from Japan, Daikin from Japan, Chi Mei from Taiwan, SABIC from the United States, DuPont from the United States, Eastman from the United States, Bayer from Germany, BASF from Germany, Samsung from South Korea, Xiaoxing from South Korea, Taikona from the United States, UMG from Japan, Ube from Japan, Mitsubishi from Japan, Sumitomo from Japan, Ink from Japan, Toray from Japan and other companies producing plastic raw materials.