Unearned Revenues

9 Months Ended

Mar. 31, 2021

Revenue Recognition and Deferred Revenue [Abstract]

Unearned Revenues

15. Unearned Revenues

Unearned revenue amounted to $9,379 and $53,248 as of March 31, 2021 and June 30, 2020, respectively. Unearned revenues are mainly due to contracts with extended payment terms, acceptance provisions and future delivery obligation.