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Organization and principal activities - Principal subsidiaries (Details)	Dec. 31, 2023
ZKH Industrial Supply
Organization Consolidation And Presentation Of Financials Statements [Line Items]
Ownership interest (as a percent)	100.00%
Shanghai Gongbangbang Industrial Tech Co., Ltd
Organization Consolidation And Presentation Of Financials Statements [Line Items]
Ownership interest (as a percent)	100.00%
Shanghai Kunhe Supply Chain Management Co., Ltd
Organization Consolidation And Presentation Of Financials Statements [Line Items]
Ownership interest (as a percent)	100.00%
Shenzhen Kuntong Smart Warehousing Technology Co., Ltd
Organization Consolidation And Presentation Of Financials Statements [Line Items]
Ownership interest (as a percent)	100.00%
ZKH Holdings Limited
Organization Consolidation And Presentation Of Financials Statements [Line Items]
Ownership interest (as a percent)	100.00%
ZKH Hong Kong Limited
Organization Consolidation And Presentation Of Financials Statements [Line Items]
Ownership interest (as a percent)	100.00%

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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- Definition

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No definition available.

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