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Related party balances and transactions - Transactions (Details) - CNY (¥) ¥ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023
Purchase of products and services |  |
Related party balances and transactions |  |
Amount of transaction | ¥ 376,504 | ¥ 216,079
Rental of office space, and administrative services |  |
Related party balances and transactions |  |
Amount of transaction | 2,168 | 2,400
Other income from related party |  |
Related party balances and transactions |  |
Amount of transaction | 0 | 7,055
Interest income on loans |  |
Related party balances and transactions |  |
Amount of transaction | 5,899 | 6,771
Interest expense on borrowings |  |
Related party balances and transactions |  |
Amount of transaction | 7,706 | 6,116
Loans to related parties |  |
Related party balances and transactions |  |
Amount of transaction | 9,800 | 12,000
Repayment received of loans to related parties |  |
Related party balances and transactions |  |
Amount of transaction | 17,700 | 8,500
Repayment of borrowings from related parties |  |
Related party balances and transactions |  |
Amount of transaction | 100,000 | 0
Borrowings from related parties |  |
Related party balances and transactions |  |
Amount of transaction | ¥ 449,000 | ¥ 300,000

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