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Income taxes (Tables) | 6 Months Ended
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Jun. 30, 2025
Income Tax Disclosure [Abstract] |
Schedule of components of income (loss) before income taxes | The United States and foreign components of income (loss) before income taxes were comprised of the following: Schedule of components of income (loss) before income taxes
|  | For the Six Months Ended June 30, 2025 |  |  | For the Six Months Ended June 30, 2024 |
|  | US$ |  |  | US$ |
U.S. |  | $ | (1,632,480 | ) |  | $ | (796,897 | )
Singapore |  |  | (2,270,583 | ) |  |  | (1,592,765 | )
Vietnam |  |  | (380,993 | ) |  |  | - |
Other Countries |  |  | (259,254 | ) |  |  | (530,084 | )
Total loss before income taxes |  | $ | (4,543,310 | ) |  | $ | (2,919,746 | )
Schedule of provision for income taxes | The provision for income taxes consisted of the following: Schedule of provision for income taxes
|  | For the Six Months Ended June 30, 2025 |  |  | For the Six Months Ended June 30, 2024 |
|  | US$ |  |  | US$ |
Current |  | $ | 71,624 |  |  | $ | 16,248 |
Deferred |  |  | 3,139 |  |  |  | - |
Provision for income taxes |  | $ | 74,763 |  |  | $ | 16,248 |
Schedule of effective tax rate | The following table reconciles U.S. statutory rates to the Company’s effective tax rate: Schedule of effective tax rate
|  | For the Six Months Ended June 30, 2025 |  |  | For the Six Months Ended June 30, 2024 |
U.S. federal statutory rate |  |  | 21.0 | % |  |  | 21.0 | %
State of California statutory rate |  |  | 8.8 | % |  |  | 8.8 | %
State of California tax deduction on federal |  |  | (1.8 | )% |  |  | (1.8 | )%
Tax rate differential outside of U.S. |  |  | (3.3 | )% |  |  | (8.5 | )%
Deferred tax assets relating to valuation allowance |  |  | (26.3 | )% |  |  | (20.1 | )%
Effective tax rate |  |  | (1.6 | )% |  |  | (0.6 | )%
Schedule of aggregate deferred tax assets | The following table sets forth the significant components of the aggregate deferred tax assets of the Company: Schedule of aggregate deferred tax assets
|  | As of June 30, 2025 |  |  | As of December 31, 2024 |
|  | US$ |  |  | US$ |
Deferred Tax Assets |  |  |  |  |  |  |  |
Net operating loss carryforwards – U.S. |  | $ | 6,214,210 |  |  | $ | 5,575,673 |
Net operating loss carryforwards – Singapore |  |  | 3,650,526 |  |  |  | 3,886,272 |
Net operating loss carryforwards – Other counties |  |  | 719,100 |  |  |  | 718,791 |
Less: valuation allowance |  |  | (10,583,836 | ) |  |  | (10,180,736 | )
Deferred tax assets, net |  | $ | - |  |  | $ | - |

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-9 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 231 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 + Details
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