Other receivables, net (Tables)

12 Months Ended

Dec. 31, 2021

Other Receivables Net

Schedule of other receivables

	December 31,			December 31,
	2021			2020
Deposit for business acquisitions	$	13,485,383		$	13,177,023
Deposit for set-up of research center		94,107			91,955
Others		3,062,247			1,093,573
Allowance for doubtful accounts		(13,665,255	)		(32,937	)
Total other receivables, net	$	2,976,482		$	14,329,614

Schedule of movements of allowance for doubtful accounts

Beginning balance	$	32,937	$	42,676
Addition/(Write-off)		13,471,554		(12,691	)
Exchange rate effect		160,764		2,952
Ending balance	$	13,665,255	$	32,937