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LOSS BEFORE INCOME TAX (Details)
¥ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2024
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Dec. 31, 2022
CNY (¥)
Crediting:        
Expenses related to issuance of shares $ 186 ¥ 1,354
Consultants share option expense (17) (125) (3,074) (16,152)
Finance costs (4) (28) (48) 191
Continuing Operation [Member]        
Crediting:        
Finance income (9) (69) (5) (13)
- Property, plant and equipment (Note 9) 1 4 5 29
- Right-of-use assets (Note 11) 47 346 691 700
Expense relating to short-term leases (Note 11) 51 371 194 353
- Financial assets at fair value through profit or loss
- Derivative financial liabilities (548) (3,996) (847) (1,007)
Expenses related to issuance of shares 186 1,354
Expenses related to share-based payment 17 125 3,074
Consultants share option expense 16,152
Other losses / (income) (1) (2) (3,742) (699)
Finance costs (4) (28) 48 (191)
Employee benefit expenses [1] 172 1,251 1,192 1,171
Discontinued operations [member]        
Crediting:        
Finance income (8,785) (15,594)
- Property, plant and equipment (Note 9) 95 275
- Right-of-use assets (Note 11) 359 713
Expense relating to short-term leases (Note 11) 129 137
Other losses / (income) 142 (205)
Finance costs 1,906 3,586
Employee benefit expenses [1] 4,960 9,416
Cost of sales        
- Sales of water treatment equipment 94
- Construction service 2,435 8,580
- Opeartion and maintenance services 307
- Operation services related to service concession arrangement 3,130 5,811
- Construction services related to service concession arrangement
- Construction services related to service concession arrangement 5,872 14,485
Amortization of intangible assets* (Note 10) [2] 460 813
Impairment losses/(reversal) on financial assets:        
- Trade receivables 383 (3,989)
- Contract assets 3,545 171
- Other receivables 6,003 2,745
- Amount due from related companies
[1] The employee benefit expenses allocated to cost of sales amounted to CNY1,418, CNY870 and CNYnil (US$nil), selling and distribution expenses amounted to CNY111, CNY70, CNYnil (US$nil) and administrative expenses amounted to CNY9,058, CNY5,212 and CNYnil (US$nil) on the consolidated statements of profit or loss for the years ended December 31, 2022, 2023 and 2024.
[2] The amortization of intangible assets allocated to cost of sales amounted to CNY730, CNY425 and CNYnil (US$nil) and administrative expenses amounted to CNY83, CNY35 and CNYnil (US$nil) on the consolidated statements of profit or loss for the years ended December 31, 2022, 2023 and 2024.