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v3.19.2

Prepaid Land Use Rights, Net (Details Textual) |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Aug. 10, 2014 USD ($) m² | Aug. 10, 2014 CNY (¥) m² | Jun. 30, 2019 USD ($) | Jun. 30, 2018 USD ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2018 USD ($)
Prepaid Land Use Rights, Net (Textual) |  |  |  |  |  |
Area of a piece of land | m² | 153,832 | 153,832 |  |  |  |
Maturity date | Aug. 09, 2064 | Aug. 09, 2064 |  |  |  |
Payments to acquire land held-for-use | $ 8,018,312 |  |  |  |  |
Other incidental costs incurred | $ 469,777 |  |  |  |  |
Prepaid land use rights [Member] |  |  |  |  |  |
Prepaid Land Use Rights, Net (Textual) |  |  |  |  |  |
Amortization |  |  | $ 41,183 | $ 44,068 | $ 88,242 | $ 82,798
RMB [Member] |  |  |  |  |  |
Prepaid Land Use Rights, Net (Textual) |  |  |  |  |  |
Payments to acquire land held-for-use | ¥ |  | ¥ 53,100,000 |  |  |  |
Other incidental costs incurred | ¥ |  | ¥ 3,100,000 |  |  |  |

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