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Convertible loans (Detail Textuals) - 2015 convertible loan agreement - CNY (¥) ¥ / shares in Units, ¥ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 18, 2017 | Dec. 31, 2015
Debt Instrument [Line Items] |  |
Debt issuance cost |  |
Pre-IPO Series C+ convertible redeemable preferred shares |  |
Debt Instrument [Line Items] |  |
Amount of convertible loan converted | ¥ 30.0 |
TuanChe Internet Information Service (Beijing) Co., Ltd. ("TuanChe Internet") |  |
Debt Instrument [Line Items] |  |
Post money valuation amount of VIE as basis for debt conversion to equity share of VIE |  | ¥ 1,200.0
Conversion price of convertible loan |  | ¥ 5.49
Percentage of total equity interest of VIE as conversion price |  | 2.50%
Post money valuation amount of company as basis for debt conversion to equity share of VIE |  | ¥ 1,200.0
Lanxi Puhua Juli Equity Investment Partnership LLP ("Puhua") |  |
Debt Instrument [Line Items] |  |
Principal amount of convertible loans |  | ¥ 30.0

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