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Loans from Prior Shareholders - Schedule of Shareholders of the Company (Details) - USD ($) | Jun. 30, 2025 | Sep. 30, 2024
--- | --- | ---
Short-Term Debt [Line Items] |  |  |
Payables to prior shareholders |  | $ 3,010,125 | $ 2,159,866
Payables to prior shareholders |  | 3,575,716 |
Lim Hooi Beng [Member] |  |  |
Short-Term Debt [Line Items] |  |  |
Payables to prior shareholders | [1] | 3,003,003 | 2,152,588
Aw Jeen Rong [Member] |  |  |
Short-Term Debt [Line Items] |  |  |
Payables to prior shareholders |  | 7,122 | 7,278
Lim Hooi Beng [Member] |  |  |
Short-Term Debt [Line Items] |  |  |
Payables to prior shareholders |  | $ 3,575,716 |
[1] | Mr. Lim Hooi Beng resigned as director of Graphjet on May 5, 2025.

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