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v3.25.1

Note 16 - Concentrations of risks (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2024 CNY (¥) | Dec. 31, 2024 SGD ($)
Cash | $ 8,968,814 | $ 10,802,405 | $ 13,130,296 |  |
China, Yuan Renminbi |  |  |  |  |
Insurance Coverage for Cash deposits | ¥ |  |  |  | ¥ 500,000 |
China, Yuan Renminbi | SDIC |  |  |  |  |
Cash | ¥ |  |  |  | ¥ 8,114,184 |
United States of America, Dollars | SDIC |  |  |  |  |
Cash | 1,111,639 |  |  |  |
United States of America, Dollars | DI Scheme |  |  |  |  |
Cash | 5,797,553 |  |  |  |
Deposits | $ 57,000 |  |  |  |
Singapore, Dollars | DI Scheme |  |  |  |  |
Cash |  |  |  |  | $ 7,920,617
Deposits |  |  |  |  | $ 75,000
Customer One |  |  |  |  |
Concentration Risk, Customer | one | one | one |  |
Customer One | Revenue from Contract with Customer Benchmark | Customer Concentration Risk |  |  |  |  |
Concentration Risk, Percentage | 66.60% | 64.20% | 60.70% |  |
Customer Two |  |  |  |  |
Concentration Risk, Customer | one | two |  |  |
Customer Two | Customer Concentration Risk |  |  |  |  |
Concentration Risk, Customer | 23.9 | 32.9 |  |  |
Customer Two | Accounts Receivable | Customer Concentration Risk |  |  |  |  |
Concentration Risk, Percentage |  | 20.40% |  |  |
Vendor |  |  |  |  |
Concentration Risk, Supplier | two | one |  |  |
Vendor | Supplier Concentration Risk | Accounts Payable |  |  |  |  |
Concentration Risk, Percentage | 13.80% | 23.60% |  |  |
Vendor | Purchase Benchmark | Supplier Concentration Risk |  |  |  |  |
Concentration Risk, Percentage | 10.00% | 10.00% | 10.00% |  |
Concentration Risk, Additional Characteristic | no | no | no |  |
Vendor Two | Supplier Concentration Risk | Accounts Payable |  |  |  |  |
Concentration Risk, Percentage | 12.40% |  |  |  |

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