Hyosung Corp. (Chairman Cho Hyun-Joon) said Hyosung TNC Corp.'s highly functional, comfortable polyester yarn “aerocool” has been selected 17 years in a row since 2002 as one of the “World-class Korean Products” certified by the Ministry of Trade, Industry and Energy and the KOTRA (Korea Trade-Investment Promotion Agency). Nine products, including aerocool, of Hyosung TNC Corp., Hyosung Advanced Materials Corp., Hyosung Chemical Corp., and Hyosung Heavy Industries Corp. have been chos...