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v3.25.1

Accounts receivable net (Details 2) ¥ in Thousands, $ in Thousands | Dec. 31, 2024 USD ($) | Dec. 31, 2024 CNY (¥) | Dec. 31, 2023 USD ($) | Dec. 31, 2023 CNY (¥)
--- | --- | --- | --- | ---
Less: allowance for doubtful accounts | $ (35,952) |  | $ (29,644) |
Accounts receivable | 1,386 |  | 2,864 |
Current |  |  |  |
Accounts receivable | 422 |  | 1,175 |
1 - 30 Days Past Due |  |  |  |
Accounts receivable | 397 |  | 603 |
31 - 60 Days Past Due |  |  |  |
Accounts receivable | 224 |  | 548 |
61 - 90 Days Past Due |  |  |  |
Accounts receivable | 183 |  | 341 |
Greater Than or Equal to 91 Days |  |  |  |
Accounts receivable | 160 |  | 197 |
Past Due |  |  |  |
Accounts receivable | 964 |  | $ 1,689 |
ZHEJIANG TIANLAN |  |  |  |
Accounts receivable | ¥ |  | ¥ 135,056 |  | ¥ 128,235
ZHEJIANG TIANLAN | Within 1 year |  |  |  |
Accounts receivable | ¥ |  | 100,254 |  | 121,658
ZHEJIANG TIANLAN | 1year - 2 years Member |  |  |  |
Accounts receivable | ¥ |  | 30,292 |  | 31,499
ZHEJIANG TIANLAN | 2years - 3 years Member |  |  |  |
Accounts receivable | ¥ |  | 10,701 |  | 3,140
ZHEJIANG TIANLAN | 3years - 4 years Member |  |  |  |
Accounts receivable | ¥ |  | 3,515 |  | 699
ZHEJIANG TIANLAN | 4years - 5 years Member |  |  |  |
Accounts receivable | ¥ |  | ¥ 456 |  | ¥ 883
ZHEJIANG TIANLAN | Over five Years |  |  |  |
Accounts receivable | $ 25,790 |  |  |

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