XML 126 R78.htm IDEA: XBRL DOCUMENT
v3.26.1

Restrictions and parent company financial information (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2025
Restrictions And Parent Company Financial Information |
Schedule of cash and cash equivalents and payable | The following tables for Bohong and Dongguan Changrong set forth our cash and cash equivalents and payable as of December 31, 2025: Schedule of cash and cash equivalents and payable
|  | As of |
|  | December 31, 2025 |
Current assets |  |  |  |
Cash and cash equivalents |  | $ | 10,380 |
Current liabilities |  |  |  |
Other payables |  | $ | (133,281 | )
Net |  | $ | (122,901 | )

X
- Definition Disclosure of Detailed Information About Cash and Cash Equivalents Explanatory + References No definition available. + Details
Name: | YMAT_DisclosureOfDetailedInformationAboutCashAndCashEquivalentsExplanatory
Namespace Prefix: | YMAT_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | YMAT_DisclosureRestrictionsAndParentCompanyFinancialInformationAbstract
Namespace Prefix: | YMAT_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration