Contract assets and liabilities (Details 3) ¥ in Thousands |
Dec. 31, 2024
USD ($)
|
Dec. 31, 2024
CNY (¥)
|
Dec. 31, 2023
USD ($)
|
Dec. 31, 2023
CNY (¥)
|
|---|---|---|---|---|
| Costs incurred in contracts in process | $ 325,000 | $ 229,000 | ||
| Revenue earned but not yet billed | 102,000 | 26,000 | ||
| Less: billings to date | (885,000) | (839,000) | ||
| Unbilled revenue | (458,000) | (584,000) | ||
| ZHEJIANG TIANLAN | ||||
| Costs and estimated earnings on uncompleted contracts | ¥ | ¥ 48,274 | ¥ 239,648 | ||
| Less: billings to date | $ (16,997,000) | $ (210,220,000) | ||
| Unbilled revenue | ¥ | ¥ 31,277 | ¥ 29,428 |