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ACCOUNTS RECEIVABLE, NET | 12 Months Ended
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Dec. 31, 2021
ACCOUNTS RECEIVABLE, NET [Abstract] |
ACCOUNTS RECEIVABLE, NET | NOTE 3 - ACCOUNTS RECEIVABLE, NET Accounts receivable, net is summarized as follows:
|  | December 31, 2021 |  |  | December 31, 2020 |
Accounts receivable |  | $ | 3,523,543 |  |  | $ | 1,584,448 |
Less: provision for doubtful accounts |  |  | (1,475,983 | ) |  |  | (1,121,115 | )
Accounts receivable, net |  | $ | 2,047,560 |  |  | $ | 463,333 |
The changes in the provision for doubtful accounts are as follows:
|  | For the Years Ended December 31, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
Balance at the beginning of the year |  | $ | 1,121,115 |  |  | $ | 874,355 |  |  | $ | - |
Additions |  |  | 391,189 |  |  |  | 92,009 |  |  |  | 946,590 |
Write-off |  |  | (86,170 | ) |  |  | - |  |  |  | (51,418 | )
Foreign exchange |  |  | 49,849 |  |  |  | 154,751 |  |  |  | (20,817 | )
Balance at the end of the year |  | $ | 1,475,983 |  |  | $ | 1,121,115 |  |  | $ | 874,355 |

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- Definition The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196772 + Details
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- References No definition available. + Details
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