Jian Feng Sling Co., Ltd., originally established in 1982 and incorporated in 2004, is a wholly-owned subsidiary of Jiangsu Safety Group Co., Ltd. (Shanghai Stock Exchange: 603028). The company has total assets of RMB 200 million and covers an area of 23,834㎡. It holds 62 valid patents, including 11 invention patents. Jian Feng has led the drafting of 6 national standards and 6 industry standards, and has served as the secretariat unit of the Sling Working Group under the National Steel Standardization Technical Committee since 2010.