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Schedule of accounts receivable (Details) - USD ($)	Dec. 31, 2025	Dec. 31, 2024
Notes and other explanatory information [abstract]
Accounts receivable	$ 3,910,735	$ 1,277,928
Less: Allowance for expected credit loss (Note 34 (b))	(331,761)
Total accounts receivable net	$ 3,578,974	$ 1,277,928

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- Definition

Allowance for credit loss.

+ References

No definition available.

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Namespace Prefix:	YMAT_
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Balance Type:	credit
Period Type:	instant

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- References

No definition available.

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- Definition

The amount of trade receivables and other receivables. [Refer: Trade receivables; Other receivables]

+ References

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- Definition

The amount due from customers for goods and services sold.

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