How many listed companies are there in Nantong?

Jianghai shares (code: 002484); Runbang shares (code: 002483); Jiangshan shares (code: 600389); Nantong Science and Technology (code: 600862); Tongfu Microelectronics (code: 002156); Luolai Home Textiles (code: 002293); Essence pharmaceutical (code 002349); Lianfa Textile (code: 002394); Jiuding new material (code: 002201); Zhongtian Technology (code: 600522); Variety shares (code: 600770); Dongyuan Electric Appliance (code: 002074); Jin Feida (code: 002239); Zhongnan Construction (code: 00096 1). Jiangsu Sanyou (code: 002044); China Rong Sheng Heavy Industry (code: HK 01101); Jiangsu Tongda (code: 002576); Jiangsu Wenfeng (code: 601010); Jeni, Jiangsu (code: 601222); Jiangsu Tongguang (code: 300265); Tongfu Microelectronics (code: 002156); Evergreen shares (code: 002391); Shenma shares (code: 600810); Jiujiujiu Technology (code: 002411); Jiangsu Jintongling (code: 300091); There should be more than 28 Hengsheng Real Estate Holdings Limited (code: HKEx 845), but I can't find so many for the time being!