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Interests in equity-accounted investees - Additional information (Details) - Yonghui Superstores Co., Ltd. ("Yonghui")
Sep. 30, 2024
CNY (¥)
shares
Interests in equity-accounted investees  
Number of aggregate shares acquired | shares 2,668,135,376
Equity interest acquired (in percentage) 29.40%
Aggregate consideration for acquisition | ¥ ¥ 6,270,118,000