In 2003 July, the state-owned enterprises of Maanshan Iron and steel dragon limited liability company (Ma’anshan slewing ring factory) reform basis, by the above middle Management personnel, part of the production, technology and marketing the backbone of invested jointly established Ma’anshan Fangyuan slewing ring Co., Ltd . In 2006 December, Ma’anshan Fangyuan slewing ring Co., Ltd the change to the overall Ma’anshan Fangyuan slewing Limited by Share Ltd . In 2007 August, the company listed on the Shenzhen stock exchange, the securities referred to as “the area of support”, stock code 002147.

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