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Prepayments and other current assets (Details)
¥ in Thousands, $ in Thousands
Dec. 31, 2019
USD ($)
Dec. 31, 2019
CNY (¥)
Dec. 31, 2018
USD ($)
Dec. 31, 2018
CNY (¥)
Deposits paid | $ $ 344   $ 259  
Prepayments | $ 151   59  
Other receivables | $ 251   156  
Other tax recoverable | $ 2   73  
Prepayments and other current assets | $ $ 748   $ 547  
ZHEJIANG TIANLAN        
Prepayments | ¥   ¥ 19,962   ¥ 18,702
Other receivables | ¥   13,988   8,791
Deposits for finance leases | ¥   17,512   0
Other current assets | ¥   1,397   1,485
Prepayments and other current assets | ¥   ¥ 52,859   ¥ 28,978