全部树

China university patent statisticsNEW

China high-tech enterprise patent statisticsNEW

Digital economy patent application and authorization dataNEW

Patents and citation data of Little Giant and individual champion companiesNEW

Small giant and single champion enterprise design patent details table

Statistics on the entry and exit of Chinese industrial and commercial enterprisesNEW

Statistics on entry and exit information of Chinese partnershipsNEW

Basic information data of manufacturing industrial and commercial registered enterprisesNEW

Patent and citation data of A-share listed companiesNEW

Patent details of A-share listed companies
A-share listed companies' patent application details table
Details of Design Patents Authorized by A-share Listed Companies

Green patents and citation data of A-share listed companies

A-share listed companies green patent details table

Patent and citation data of Chinese industrial enterprisesNEW

Green patents and citation data of Chinese industrial enterprisesNEW

Details of Green Patents of Chinese Industrial Enterprises

Tax investigation of corporate patents and citation dataNEW

Cost of living data for global residentsNEW

China foreign trade index data

Time interval

All data before 2021.10.31


Field display

Inquiry letter from Shenzhen Stock Exchange to A-share listed companies Description
gsdm Stock code of the company being inquired
gsjc Abbreviation of the company being heard
fhrq Inquiry letter issuance date
ck Inquiry letter specific PDF name
hfck Reply inquiry letter specific PDF name

Sample data

gsdm gsjc fhrq hjlb ck hfck
300064 Yu Diamond 2020-01-02 Letter of Concern NMK30006430790.pdf
300146 By-Health 2019-12-31 Letter of Concern NMK30014630786.pdf
300307 Cixing Shares 20 19-12-31 Inquiry letter NMK30030730780.pdf
300269 Lianjian Optoelectronics 2019-12-31 Concern letter NMK30026930777.pdf
300364 Chinese Online 2019-12-30 Concern letter NMK30036430772.pdf
300773 Lakala 2019-12-30 Letter of Concern NMK30077330765.pdf NMK300773307651700HF.pdf
300178 Tengbang International 2019-12-26 Letter of Concern NMK30017830748.pdf NMK300178307481699HF.pdf
300537 Guangxin Materials 2019-12-25 Letter of Concern NMK30053730720.pdf NMK300537307201698HF.pdf
300116 Jianrui Woneng 2019-12-24 Letter of Concern NMK30011630740.pdf NMK300116307401695HF.pdf
300221 Silver Jubilee Technology 2019-12-24 Inquiry Letter NMK30022130715.pdf NMK300221307151701HF.pdf
300174 Yuanli Shares 2019-12-22 Inquiry Letter NMK30017430704.pdf NMK300174307041694HF.pdf
300234 Kai'er New Materials 2019-12-19 Letter of Concern NMK30023430709.pdf NMK300234307091690HF.pdf
300431 Storm Group 2019-12-19 Letter of Concern NMK30043130698.pdf
300269 Lianjian Optoelectronics 2019-12-18 Inquiry letter NMK30026930665.pdf NMK300269306651697HF.pdf
300252 Kingsignal 2019-12-18 Concern letter NMK30025230682.pdf NMK300252306821692HF.pdf
300153 Cotech Power 2019-12-17 Letter of Concern NMK30015330691.pdf NMK300153306911688HF.pdf
300167 Diweixun 2019-12-17 Letter of Concern NMK30016730684.pdf NMK300167306841691HF.pdf
300364 Chinese Online 2019-12-17 Inquiry letter NMK30036430655.pdf NMK300364306551696HF.pdf
300132 Qingsong shares 2019-12-17 Inquiry letter NMK30013230679.pdf NMK300132306791693HF.pdf
300152 Kerong Environment 2019- 12-17 Letter of Concern NMK30015230656.pdf NMK300152306561689HF.pdf
300586 Meilian New Materials 2019-12-16 Letter of Concern NMK30058630663.pdf NMK300586306631686HF.pdf
300099 Accurate Information 2019-12-16 Inquiry letter NMK30009930660.pdf NMK300099306601687HF.pdf
300461 Tanaka Seiki 2019-12-13 Concern letter NMK30046130648.pdf NMK300461306481682HF.pdf
300228 Furui Special Equipment 2019-12-13 Inquiry letter NMK30022830650.pdf NMK300228306501685HF.pdf
300111 Sunflower 2019-12-11 Non-licensed restructuring inquiry letter NMK30011130625.pdf NMK300111306251684HF.pdf
300310 Yitong Century 2019-12-11 Letter of Concern NMK30031030631.pdf NMK300310306311683HF.pdf
300128 Jinfu Technology 2019-12-10 Letter of Concern NMK30012830620.pdf NMK300128306201678HF.pdf
300003 Lepu Medical 2019-12-10 Inquiry letter NMK30000330601.pdf NMK300003306011674HF.pdf
300341 McAudi 2019-12-09 Inquiry letter NMK30034130607.pdf NMK300341306071677HF.pdf

Data update frequency

Annual update