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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
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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- Definition

Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479424/830-30-S99-1

+ Details

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