Note 15. Warranty liabilities Warranty liabilities consisted of the following: | | | As of
June 30,
2026 | | | As of
December 31,
2025 | | | Warranty liabilities | | $ | 27,728 | | | $ | 25,941 | | | Total warranty liabilities | | $ | 27,728 | | | $ | 25,941 | | | | | For the
six months
ended
June 30,
2026 | | | For the
year ended
December 31,
2025 | | | Balance at the beginning of the period | | | 25,941 | | | | 31,602 | | | Increase in liability | | | 27,728 | | | | 25,941 | | | Reduction in liability (warranty claims) | | | (25,941 | ) | | | (31,602 | ) | | Balance at the end of the period | | $ | 27,728 | | | $ | 25,941 | |
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