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Prepayments and other current assets (Details) ¥ in Thousands, $ in Thousands | Dec. 31, 2023 USD ($) | Dec. 31, 2023 CNY (¥) | Dec. 31, 2022 USD ($) | Dec. 31, 2022 CNY (¥)
--- | --- | --- | --- | ---
Deposits paid | $ 40 |  | $ 255 |
Prepayments | 68 |  | 76 |
Other receivables | 134 |  | 152 |
Other tax recoverable | 4 |  | 3 |
Prepayments and other current assets | $ 246 |  | $ 486 |
ZHEJIANG TIANLAN |  |  |  |
Prepayments | ¥ |  | ¥ 16,622 |  | ¥ 12,547
Deposits paid for bidding projects and temporary payments | ¥ |  | 6,257 |  | 6,004
Other current assets | ¥ |  | 862 |  | 2,600
Prepayments and other current assets | ¥ |  | ¥ 23,741 |  | ¥ 21,151

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