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Note 2 - Summary of significant accounting policies: Foreign currency translation and transaction: Summary of translation of foreign currencies (Details) | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
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Singapore, Dollars |  |  |
Foreign Currency Exchange Rate, Translation | 1.3662 | 1.3193 | 1.3404
Singapore, Dollars | Arithmetic Average |  |  |
Foreign Currency Exchange Rate, Translation | 1.3363 | 1.3428 | 1.3787
China, Yuan Renminbi |  |  |
Foreign Currency Exchange Rate, Translation | 7.2993 | 7.0999 | 6.8972
China, Yuan Renminbi | Arithmetic Average |  |  |
Foreign Currency Exchange Rate, Translation | 7.1957 | 7.0809 | 6.729

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