The central-circumpolar property (cyclical interconnection, stock code 837130) was established in 2001 as a well-known national real-estate broker, creating a direct-account model for the brokering industry and being hailed as a "chinese-style association". It serves 12 provinces and 14 cities, including south chang, nanjing, chengdu, changsha, wuhan, chongqing, urumqi, taiwon, zhengzhou, kunming, fukuzhou, shenyang, kyushu and taezhou, with more than 2,600 subscribers, and successfully boarded in 2016 with stock code 837130, which entered the innovation layer on 31 may 2017。