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Cash cash equivalents and restricted cash (Details) - CNY (¥)
¥ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Cash On Hand ¥ 41 ¥ 40
Cash At Bank 87 310
Restricted Cash At Bank(1) 167 46
Cash, Cash Equivalents And Restricted Cash Per Consolidated Statements Of Cash Flow ¥ 295 ¥ 396