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Significant Events After Reporting Period	12 Months Ended
	Dec. 31, 2024
Disclosure of non-adjusting events after reporting period [abstract]
Significant Events After Reporting Period	38. SIGNIFICANT EVENTS AFTER REPORTING PERIOD In March 2025, the board of directors of ASE resolved to acquire 100% shareholdings of Sumipex TechSheet Co., Ltd. for facility expansion.

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No definition available.

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- Definition

The disclosure of non-adjusting events after the reporting period. [Refer: Non-adjusting events after reporting period [domain]]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Number 10
-IssueDate 2024-01-01
-Paragraph 21
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-URIDate 2024-03-27

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