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Schedule of investing activities with partial cash payments (Details) - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Investing Activities With Partial Cash Payments    
Purchase of property, plant and equipment $ 44,224 $ 154,594
Add: Opening balance of payable on equipment 12,140 278,011
Less: Ending balance of payable on equipment (11,657) (12,140)
Less: Opening balance of prepaid on property, plant and equipment (411,178) (626,179)
Add: Ending balance of prepaid on property, plant and equipment 390,363 411,178
Effect of foreign exchange rate changes 1,333
Effects from disposal of investments (111,954)
Cash paid during the year $ 25,225 $ 93,510