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v3.25.1

Related Party Transactions - Summary of Significant Transactions between the Company and Other Related Parties (Detail) $ in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 TWD ($) | Dec. 31, 2023 TWD ($) | Dec. 31, 2022 TWD ($) | Dec. 31, 2024 USD ($)
Disclosure of transactions between related parties [line items] |  |  |  |
Receivables from related parties | $ 1,404.5 | $ 624.4 |  | $ 42.8
Other receivables from related parties | 0.2 | 71.9 |  | 0.0
Payables to related parties | 1,426.0 | 1,566.3 |  | $ 43.5
Xintec Inc. [member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Payables to related parties | 988.0 | 1,020.2 |  |
Systems on Silicon Manufacturing Company Pte Ltd. [member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Other receivables from related parties | 0.2 | 58.1 |  |
Payables to related parties | 308.4 | 457.3 |  |
Vanguard International Semiconductor Corporation [member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Receivables from related parties | 626.7 | 0.0 |  |
Other receivables from related parties | 0.0 | 13.8 |  |
Global Unichip Corporation [member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Receivables from related parties | 610.0 | 514.8 |  |
Associates [member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Net revenue from sale of goods | 15,034.1 | 13,406.0 | $ 15,351.5 |
Purchases | 4,619.6 | 4,562.2 | 6,423.9 |
Temporary receipts | 4,271.5 | 307.5 |  |
Manufacturing expenses | 5,232.8 | 5,043.5 | $ 6,011.5 |
Other related parties [member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Receivables from related parties | 167.8 | 109.6 |  |
Payables to related parties | $ 129.6 | $ 88.8 |  |

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