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Unearned Revenues
3 Months Ended
Sep. 30, 2021
Revenue from Contract with Customer [Abstract]  
Unearned Revenues

 

17. Unearned Revenues

 

Unearned revenue amounted to $20,265 and $0 as of September 30, 2021 and June 30, 2021, respectively. Unearned revenues are mainly due to contracts with extended payment terms, acceptance provisions and future delivery obligation.