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Income taxes (Details Narrative) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income tax rate | 10.00% | 10.00% |
Net income (loss) for the year | $ 539,000 | $ 1,366,000 | $ 402,000
Aggregate undistributed earnings | $ 600,000 | $ 600,000 | $ 600,000
Hong Kong |  |  |
Income tax rate | 8.25% | 16.50% | 16.50%
Net income (loss) for the year | $ 256,000 | $ 256,000 | $ 256,000
Shanghai Euro Tech Limited |  |  |
Income tax rate | 25.00% | 25.00% | 25.00%
Net income (loss) for the year | $ (982,000) | $ (678,000) | $ (658,733)
Shanghai Euro Tech Environmental Engineering Company Limited |  |  |
Income tax rate | 25.00% | 25.00% | 25.00%
Net income (loss) for the year | $ 0 | $ 0 | $ 0
Yixing Pact Environmental Technology Co. Ltd. |  |  |
Income tax rate | 25.00% | 25.00% | 25.00%
Net income (loss) for the year | $ 1,509,000 | $ 1,759,000 | $ 2,304,828
Euro Tech Trading (Shanghai) Limited |  |  |
Income tax rate | 25.00% | 25.00% | 25.00%
Net income (loss) for the year | $ (103,000) | $ (18,000) | $ (604,778)

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