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CRITICAL ACCOUNTING ESTIMATES AND JUDGMENTS (Details) - CNY (¥)
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Jan. 01, 2019
CRITICAL ACCOUNTING ESTIMATES AND JUDGMENTS            
Property, plant and equipment ¥ 35,000 ¥ 46,000        
Impairment loss recognised in profit or loss, property, plant and equipment 0 75,907,000 ¥ 33,653,000      
Investment property 0 0        
Impairment loss recognised in profit or loss, investment property 0 4,858,000 1,617,000      
Right-of-use assets 0 32,619,000 32,619,000     ¥ 17,266,000
Impairment loss 0 85,021,000 36,683,000      
Impairment loss of land use rights 0 4,256,000 1,413,000      
Impairment loss recognised in profit or loss, goodwill 0 0 ¥ 0 ¥ 0 ¥ 3,735,000  
Current tax liabilities 842,000 4,497,000        
Trade and other current receivables 177,023,000 224,114,000        
Current inventories 165,296,000 127,346,000        
Land use rights member [Member]            
CRITICAL ACCOUNTING ESTIMATES AND JUDGMENTS            
Right-of-use assets 0 0        
Impairment loss of land use rights ¥ 0 ¥ 4,256,000