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CRITICAL ACCOUNTING ESTIMATES AND JUDGMENTS (Details) - CNY (¥)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2015
Jan. 01, 2019
CRITICAL ACCOUNTING ESTIMATES AND JUDGMENTS          
Property, plant and equipment ¥ 1,250,000 ¥ 68,000      
Impairment loss recognised in profit or loss, property, plant and equipment 0 0 ¥ 0    
Investment property 0 0      
Impairment loss recognised in profit or loss, investment property 0 0 0    
Right-of-use assets         ¥ 17,266,000
Impairment loss of land use rights 0 0 0    
Impairment loss recognised in profit or loss, goodwill 0 0 0 ¥ 3,735,000  
Income tax payable 209,000 0      
Bad debts 125,554,000 150,268,000 ¥ 68,660,000    
Trade and other current receivables 51,416,000 101,470,000      
Current inventories 31,589,000 52,201,000      
Land use rights member          
CRITICAL ACCOUNTING ESTIMATES AND JUDGMENTS          
Right-of-use assets ¥ 0 ¥ 0