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Shareholders’ equity (Tables) | 6 Months Ended
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Jun. 30, 2025
Equity [Abstract] |
Schedule of warrants | The summary of warrants activity is as follows: Schedule of warrants
|  | Warrants Outstanding |  |  | Warrants Exercisable |  |  | Class A Ordinary Shares Issuable |  |  | Weighted Average Exercise Price |  |  | Average Remaining Contractual Life (in years) |
|  |  |  |  |  |  |  |  |  |  | US$ |  |  |  |
December 31, 2023 |  |  | 5,570,275 |  |  |  | 5,570,275 |  |  |  | 5,570,275 |  |  | $ | 1.66 |  |  |  | 1.63 |
Granted |  |  | 251,608 | * |  |  | 251,608 |  |  |  | 251,608 |  |  | $ | 3.33 |  |  |  | 2.00 |
Forfeited |  |  | - |  |  |  | - |  |  |  | - |  |  | $ | - |  |  |  | - |
Exercised |  |  | (810,425 | ) |  |  | (810,425 | ) |  |  | (810,425 | ) |  | $ | 1.65 |  |  |  | - |
June 30, 2024 |  |  | 5,011,458 |  |  |  | 5,011,458 |  |  |  | 5,011,458 |  |  | $ | 1.74 |  |  |  | 1.15 |
December 31, 2024 |  |  | 4,943,608 |  |  |  | 4,943,608 |  |  |  | 4,943,608 |  |  | $ | 1.73 |  |  |  | 0.59 |
Granted |  |  | 4,949,156 |  |  |  | 4,949,156 |  |  |  | 4,949,156 |  |  | $ | 1.65 |  |  |  | 1.85 |
Forfeited |  |  | (4,778,995 | ) |  |  | (4,778,995 | ) |  |  | (4,778,995 | ) |  | $ | 1.73 |  |  |  | - |
Exercised |  |  | (164,713 | ) |  |  | (164,713 | ) |  |  | (164,713 | ) |  | $ | 1.65 |  |  |  | - |
June 30, 2025 |  |  | 4,949,156 |  |  |  | 4,949,156 |  |  |  | 4,949,156 |  |  | $ | 1.65 |  |  |  | 1.38 |
* |  | The number of warrants were estimated based upon the IPO price of US$4.75, the midpoint of the estimated proposed IPO price range of $4.00 and $5.50 per share.

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- Definition Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-3 + Details
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