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TAXATION (Details)
3 Months Ended 12 Months Ended
Jan. 01, 2008
Jun. 30, 2019
CNY (¥)
Jun. 30, 2018
CNY (¥)
Jun. 30, 2017
CNY (¥)
Mar. 31, 2017
CNY (¥)
Dec. 31, 2019
CNY (¥)
Dec. 31, 2018
CNY (¥)
Dec. 31, 2017
CNY (¥)
Dec. 31, 2019
USD ($)
Dec. 31, 2016
CNY (¥)
Income Tax [Line Items]                    
Federal corporate income tax rate           25.00% 25.00% 25.00%    
Statutory reserves           ¥ 689,706,737 ¥ 570,176,203   $ 99,070,174  
Utilization and reversal of valuation allowances           32,719,772 1,388,479 ¥ 21,823,558    
Deferred Tax Assets, Valuation Allowance           ¥ 144,316,817 ¥ 114,620,700 ¥ 86,443,363   ¥ 66,223,501
Percentage of unrecognized deferred tax liability           5 5 5    
Income Tax Reconciliation Non deductible Expense Reversal Of Income Tax         ¥ 17,300,000          
Reclassification of income tax refund to deferred tax liability           ¥ 57,216,307 ¥ 57,216,307      
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Research and Development, Amount   ¥ 88,000,000.0 ¥ 59,300,000 ¥ 41,800,000            
JAPAN [Member]                    
Income Tax [Line Items]                    
Federal corporate income tax rate           38.00%        
SWITZERLAND                    
Income Tax [Line Items]                    
Federal corporate income tax rate           8.50%        
GERMANY                    
Income Tax [Line Items]                    
Federal corporate income tax rate           33.00%        
ITALY                    
Income Tax [Line Items]                    
Federal corporate income tax rate           27.90%        
FRANCE                    
Income Tax [Line Items]                    
Federal corporate income tax rate           31.00%        
China [Member]                    
Income Tax [Line Items]                    
Federal corporate income tax rate 25.00%         15.00% 15.00% 15.00%    
Reduced statutory rate           15.00%        
Dividend distribution withholding tax           10.00%        
Statutory reserves           ¥ 3,883,577,293 ¥ 3,250,957,069 ¥ 3,121,934,696    
Deferred tax liability reinvested earnings           ¥ 194,178,865 ¥ 162,547,853 ¥ 156,096,735    
HONG KONG                    
Income Tax [Line Items]                    
Federal corporate income tax rate           16.50%        
Dividend distribution withholding tax           5.00%        
HONG KONG | Minimum [Member]                    
Income Tax [Line Items]                    
Federal corporate income tax rate           25.00%        
PORTUGAL                    
Income Tax [Line Items]                    
Federal corporate income tax rate           23.00%        
USA [Member]                    
Income Tax [Line Items]                    
Federal corporate income tax rate             35.00% 21.00%    
CANADA [Member]                    
Income Tax [Line Items]                    
Federal corporate income tax rate           15.00%        
State/Province tax rate           11.50%        
AUSTRALIA [Member]                    
Income Tax [Line Items]                    
Federal corporate income tax rate           30.00%        
BRAZIL [Member]                    
Income Tax [Line Items]                    
Federal corporate income tax rate           34.00%        
MEXICO [Member]                    
Income Tax [Line Items]                    
Federal corporate income tax rate           30.00%        
Malaysia [Member]                    
Income Tax [Line Items]                    
Federal corporate income tax rate           24.00%        
Income Tax Holiday, Description           a five year 100% tax exemption