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Interest income (Tables)

12 Months Ended

Dec. 31, 2025

Notes and other explanatory information [abstract]

Schedule of Interest Income

Schedule of Interest Income

		Year ended December 31, 2025				Year ended December 31, 2024				Year ended December 31, 2023
Interest income from
Bank deposits		$	14,535			$	22,580			$	19,582
Guarantee deposit			18,692				23,862				-
Long-term receivables (including current portion)			112,726				218,168				316,793
Total Interest Income		$	145,953			$	264,610			$	336,375