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Note 5 - Loans Receivable From Property Development Projects - Summary of Loans Receivable (Details) - Jun. 30, 2025 ¥ in Thousands, $ in Thousands | USD ($) | CNY (¥)
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JiangHuai (Project – Yu Jin Jiang An) | $ 279 | ¥ 2,000
Less: allowance for expected credit losses | (279) | (2,000)
Net loan receivables from property development projects | $ 0 | ¥ 0

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