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Other income and other losses | 12 Months Ended
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Dec. 31, 2022
ZHEJIANG TIANLAN |
Other income and other losses |
16. | Other income and other losses
Other income
|  | Year ended December 31, |
|  | 2022 |  |  | 2021 |  |  | 2020 |
|  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |
Compensation income |  |  | - |  |  |  | - |  |  |  | 22,548 |
Gain on disposal of property, plant and equipment |  |  | - |  |  |  | 39 |  |  |  | - |
Investment income |  |  | 824 |  |  |  | 531 |  |  |  | 266 |
Amounts waived by payees |  |  | 980 |  |  |  | 3,061 |  |  |  | 4,535 |
Reversal of allowance for doubtful accounts |  |  | 983 |  |  |  | 183 |  |  |  | 6,463 |
Subsidy income from PRC government |  |  | 9,002 |  |  |  | 7,780 |  |  |  | 5,834 |
|  |  | 11,789 |  |  |  | 11,594 |  |  |  | 39,646 |
Other losses
|  | Year ended December 31, |
|  | 2022 |  |  | 2021 |  |  | 2020 |
|  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |
Impairment loss on short term investments |  |  | 195 |  |  |  | - |  |  |  | - |
Impairment loss on contract assets |  |  | 3,560 |  |  |  | 1,238 |  |  |  | 1,399 |
Impairment loss on long-term investments |  |  | - |  |  |  | - |  |  |  | 1,340 |
Impairment loss on property, plant and equipment |  |  | - |  |  |  | - |  |  |  | 2,742 |
|  |  | 3,755 |  |  |  | 1,238 |  |  |  | 5,481 |

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