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Acquisition of a subsidiary (Details) - Schedule of Acquisition of a subsidiary ¥ in Millions | Jul. 20, 2021 USD ($) | Jul. 20, 2021 CNY (¥) | Jun. 30, 2021 USD ($)
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Schedule of Acquisition of a subsidiary [Abstract] |  |  |
Deposit paid for acquisition of a subsidiary | $ 2,320,000 | ¥ 15 | $ 3,096,646

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- Definition The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8,17) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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