| Summary of exposure to foreign currencies |
| | | | | December 31, 2025 | | US$ | | AUD$ | Cash | | 2,707,171 | | 26,064 | Accounts receivable | | — | | 40,013 | Marketable securities | | 10,000,000 | | 2,640,000 | Accounts payable and accrued liabilities | | (537,714) | | (20,143) | Convertible debentures | | (3,960,893) | | — | Net balance | | 8,208,564 | | 2,685,934 |
| | | | | December 31, 2024 | | US$ | | AUD$ | Cash | | 434,627 | | 39,359 | Accounts receivable | | 291 | | 84,240 | Marketable securities | | 10,000,000 | | 1,350,000 | Accounts payable and accrued liabilities | | (206,452) | | (142,452) | Convertible debentures | | (21,044,248) | | — | Net balance | | (10,815,782) | | 1,331,147 |
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