Prepayments, Deposits and Other Assets, net

12 Months Ended

Dec. 31, 2021

Prepayments Deposits And Other Assets Net [Abstract]

Prepayments, deposits and other assets, net

Note 4 — Prepayments, deposits and other assets, net

Prepayments, deposits and other assets, net consisted of the following:

	As of December 31,
	2021			2020
Security deposits (1)	$	381,813		$	385,607
Advances to suppliers		1,483,084			1,508,022
Advances to employees		317,725			215,735
Prepaid expense		360,074			293,573
Others		188,216			288,464
		2,730,912			2,691,401
Less: Long term portion		(381,656	)		(385,607	)
Allowance for doubtful accounts		(313,844	)		(306,513	)
Prepayments, deposits and other assets – current portion	$	2,035,412		$	1,999,281

(1) Security deposits mainly represent contract fulfillment deposits required by customer for specific projects, rent deposits and etc.

Movement of allowance for doubtful accounts is as follows:

	As of December 31,
	2021			2020		2019
Beginning balance	$	306,513		$	31,139	$	14,047
Provision(recovery) for doubtful accounts		88,846			258,280		17,400
Write off		(88,846	)		-		-
Foreign currency translation adjustments		7,331			17,094		(308	)
Ending balance	$	313,844		$	306,513	$	31,139