Accounts payable and accrued expenses

12 Months Ended

Dec. 31, 2021

Accounts payable and accrued expenses [Abstract]

Accounts payable and accrued expenses

16 Accounts payable and accrued expenses

Accounts payable and accrued expenses at December 31, 2021 and 2020, are shown as follows:

	2021		2020
General expenses	$	135,287	$	57,929
Operating expenses		167,741		259,151
Purchased services		51,302		89,976
Taxes payable		31,356		38,281
Salaries and wages		3,116		924
Others		81,266		78,847
	$	470,068	$	525,108