The 21st international exhibition of textile machinery and raw materials, embroidery machines and homemade and industrial textile products will open in Tehran International Fairground September 4-7, Mehr News Agency reported. As many as 162 domestic and 178 foreign companies from South Korea, Spain, Italy, the United Arabic Emirates, Turkey, India, China, Taiwan, Germany and Pakistan are due to take part in the event, showcasing their latest products and services. Also, 15 scientific workshops, two specialized conferences and four scheduled visits by foreign business delegations will be held on the sidelines of the exhibition.