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Deferred Tax, Net (Tables) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2021 | Dec. 31, 2020
Deferred Tax Assets Liabilities Net Disclosure [Abstract] |  |
Schedule of deferred tax liability |
|  | 2021 |  |  | 2020 |
Accrued expenses |  | $ | 70,721 |  |  | $ | 70,019 |
Write-off Erdos TCH net investment in sales-type leases |  |  | 6,536,960 |  |  |  | 6,155,300 |
US NOL |  |  | 533,834 |  |  |  | 254,035 |
PRC NOL |  |  | 10,642,867 |  |  |  | 10,849,690 |
Total deferred tax assets |  |  | 17,784,382 |  |  |  | 17,329,044 |
Less: valuation allowance for deferred tax assets |  |  | (17,784,382 | ) |  |  | (17,329,044 | )
Deferred tax assets, net |  | $ | - |  |  | $ | - |
|  | 2020 |  |  | 2019 |
Non-current deferred tax assets |  |  |  |  |  |
Accrued expenses |  | $ | 70,019 |  |  | $ | 189,050 |
Interest income in sales-type leases on cash basis |  |  | - |  |  |  | 853,265 |
Depreciation of fixed assets |  |  | - |  |  |  | 2,938,605 |
Assets impairment loss |  |  | - |  |  |  | 7,537,556 |
Write-off Erdos TCH net investment in sales-type leases |  |  | 6,155,300 |  |  |  | 6,349,604 |
US NOL |  |  | 254,035 |  |  |  | 3,246,655 |
PRC NOL |  |  | 10,849,690 |  |  |  | 10,424,558 |
Non-current deferred tax liabilities |  |  |  |  |  |  |  |
Net investment in sales-type leases |  |  | - |  |  |  | (6,685,021 | )
Net non-current deferred tax assets |  |  | 17,329,044 |  |  |  | 24,854,272 |
Less: valuation allowance for deferred tax assets |  |  | (17,329,044 | ) |  |  | (24,854,272 | )
Non-current deferred tax assets, net |  | $ | - |  |  | $ | - |

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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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