v3.25.1
Income taxes (Details 1)
$ in Thousands
12 Months Ended
Dec. 31, 2024
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
USD ($)
Dec. 31, 2023
CNY (¥)
Dec. 31, 2022
USD ($)
Dec. 31, 2022
CNY (¥)
Income before income tax | $ $ 917   $ 1,695   $ 563  
Hong Kong            
Income before income tax | $ 519   1,695   563  
Computed tax using respective companies' statutory tax rates | $ (100)   78   131  
Tax effect of expenses not deductible for tax purposes | $ (34)   (44)   (213)  
Change in valuation allowances | $ 62   (79)   58  
Income taxes credit / (expense) at effective tax rate | $ $ (72)   $ (45)   $ (24)  
ZHEJIANG TIANLAN            
Income before income tax   ¥ 14,831   ¥ 86,606   ¥ 15,398
Computed tax using respective companies' statutory tax rates   2,152   12,991   2,309
(Over)-provision for income tax in prior years   5   (591)   (69)
Temporary differences   1,090   2,931   2,089
Tax effect of expenses not deductible for tax purposes   699   4,472   500
Tax effect of special deduction for research and development costs   (4,081)   (3,734)   (5,257)
Tax effect of revenue not subject to tax           3
Others   510       57
Income taxes credit / (expense) at effective tax rate   ¥ 365   ¥ 16,069   ¥ (368)