XML 32 R15.htm IDEA: XBRL DOCUMENT
v3.25.1

Significant Related Party Transactions | 12 Months Ended
--- | ---
Dec. 31, 2024
Disclosure of transactions between related parties [abstract] |
Significant Related Party Transactions |
7. | SIGNIFICANT RELATED PARTY TRANSACTIONS
| a. | Significant intercompany transactions between consolidated entities were as follows:
For the year ended December 31, 2022
Entity |  | Counterparty |  | Transactions (Note A)
| Account |  | Amount |  |  | Terms (Note B)
|  |  |  |  |  | NT$ |  |  |
|  |  |  |  |  | (In Thousands) |  |  |
UMC |  | UMC-USA |  | Sales |  | $ | 68,554,072 |  |  | Net 60 days
UMC |  | UMC-USA |  | Accounts receivable |  |  | 9,502,922 |  |  | —
UMC |  | USCXM |  | Sales |  |  | 1,143,280 (Note C | ) |  | Net 30 days
UMC |  | USCXM |  | Accounts receivable |  |  | 16,774 |  |  | —
UMC |  | UDS |  | Sales |  |  | 656,472 |  |  | Net 30 days
UMC |  | UDS |  | Accounts receivable |  |  | 6,734 |  |  | —
UMC |  | USJC |  | Sales |  |  | 164,855 |  |  | Net 60 days
UMC |  | USJC |  | Accounts receivable |  |  | 151,430 |  |  | —
USJC |  | UMC-USA |  | Sales |  |  | 4,272,900 |  |  | Net 60 days
USJC |  | UMC-USA |  | Accounts receivable |  |  | 744,082 |  |  | —
USCXM |  | UMC-USA |  | Sales |  |  | 1,565,670 |  |  | Net 60 days
USCXM |  | UMC-USA |  | Accounts receivable |  |  | 310,431 |  |  | —
USCXM |  | UMC |  | Sales |  |  | 1,035,407 |  |  | Net 30 days - Net 45 days
USCXM |  | UMC |  | Accounts receivable |  |  | 173 |  |  | —
USCXM |  | UDS |  | Sales |  |  | 148,259 |  |  | Month-end 30 days
USCXM |  | UDS |  | Accounts receivable |  |  | 171 |  |  | —
WAVETEK |  | UMC-USA |  | Sales |  |  | 716,357 |  |  | Net 60 days
WAVETEK |  | UMC-USA |  | Accounts receivable |  |  | 81,819 |  |  | —
WAVETEK |  | UMC |  | Sales |  |  | 124,178 |  |  | Month-end 30 days
HEJIAN |  | UMC-USA |  | Sales |  |  | 551,913 |  |  | Net 60 days
HEJIAN |  | UMC-USA |  | Accounts receivable |  |  | 147,265 |  |  | —
HEJIAN |  | UDS |  | Sales |  |  | 311,972 |  |  | Month-end 30 days
HEJIAN |  | UDS |  | Accounts receivable |  |  | 9,500 |  |  | —
For the year ended December 31, 2023
Entity |  | Counterparty |  | Transactions (Note A)
| Account |  | Amount |  |  | Terms (Note B)
|  |  |  |  |  | NT$ |  |  |
|  |  |  |  |  | (In Thousands) |  |  |
UMC |  | UMC-USA |  | Sales |  | $ | 61,923,652 |  |  | Net 60 days
UMC |  | UMC-USA |  | Accounts receivable |  |  | 5,827,800 |  |  | —
UMC |  | USCXM |  | Sales |  |  | 1,127,275 (Note C | ) |  | Net 30 days
UMC |  | USCXM |  | Accounts receivable |  |  | 11,688 |  |  | —
UMC |  | UDS |  | Sales |  |  | 364,948 |  |  | Net 30 days
UMC |  | UDS |  | Accounts receivable |  |  | 10,800 |  |  | —
USJC |  | UMC-USA |  | Sales |  |  | 3,487,292 |  |  | Net 60 days
USJC |  | UMC-USA |  | Accounts receivable |  |  | 342,835 |  |  | —
USCXM |  | UMC-USA |  | Sales |  |  | 1,208,630 |  |  | Net 60 days
USCXM |  | UMC-USA |  | Accounts receivable |  |  | 17,816 |  |  | —
USCXM |  | UMC |  | Sales |  |  | 134,303 |  |  | Net 30 days - Net 45 days
USCXM |  | UDS |  | Sales |  |  | 286,087 |  |  | Month-end 30 days
USCXM |  | UDS |  | Accounts receivable |  |  | 362 |  |  | —
WAVETEK |  | UMC-USA |  | Sales |  |  | 505,806 |  |  | Net 60 days
WAVETEK |  | UMC-USA |  | Accounts receivable |  |  | 53,916 |  |  | —
HEJIAN |  | UMC-USA |  | Sales |  |  | 384,067 |  |  | Net 60 days
HEJIAN |  | UMC-USA |  | Accounts receivable |  |  | 43,863 |  |  | —
HEJIAN |  | UDS |  | Sales |  |  | 159,523 |  |  | Month-end 30 days
HEJIAN |  | UDS |  | Accounts receivable |  |  | 2,696 |  |  | —
For the year ended December 31, 2024
Entity |  | Counterparty |  | Transactions (Note A)
| Account |  | Amount |  |  | Terms (Note B)
|  |  |  |  |  | NT$ |  |  |
|  |  |  |  |  | (In Thousands) |  |  |
UMC |  | UMC-USA |  | Sales |  | $ | 58,145,772 |  |  | Net 60 days
UMC |  | UMC-USA |  | Accounts receivable |  |  | 6,970,670 |  |  | —
UMC |  | USCXM |  | Sales |  |  | 1,210,478 (Note C | ) |  | Net 30 days
UMC |  | USCXM |  | Accounts receivable |  |  | 12,623 |  |  | —
UMC |  | UDS |  | Sales |  |  | 337,007 (Note D | ) |  | Net 30 days
USJC |  | UMC-USA |  | Sales |  |  | 4,755,322 |  |  | Net 60 days
USJC |  | UMC-USA |  | Accounts receivable |  |  | 713,962 |  |  | —
USCXM |  | UMC-USA |  | Sales |  |  | 639,413 |  |  | Net 60 days
USCXM |  | UMC-USA |  | Accounts receivable |  |  | 137,666 |  |  | —
USCXM |  | UDS |  | Sales |  |  | 287,522 (Note D | ) |  | Month-end 30 days
WAVETEK |  | UMC-USA |  | Sales |  |  | 397,260 |  |  | Net 60 days
WAVETEK |  | UMC-USA |  | Accounts receivable |  |  | 39,086 |  |  | —
HEJIAN |  | UMC-USA |  | Sales |  |  | 240,749 |  |  | Net 60 days
HEJIAN |  | UMC-USA |  | Accounts receivable |  |  | 31,132 |  |  | —
| Note A: | The significant intercompany transactions listed above include downstream and upstream transactions.
| Note B: | The sales price to the above related parties was determined through mutual agreement in reference to market conditions.
| Note C: | UMC authorized technology licenses to its subsidiary, USCXM, in the amount of US$0.35 billion, which was recognized as deferred revenue to be realized over time.
| Note D: | In August 2024, HEJIAN has disposed of its 100% of ownership interest in the subsidiary, UDS.
| b. | Significant transactions between the Company and other related parties were as follows:
| (i) | Name and Relationship of Related Parties
|  | Name of related parties |  | Relationship with the Company
|  | FARADAY TECHNOLOGY CORP. and its Subsidiaries |  | Associate
|  | UNIMICRON TECHNOLOGY CORP. |  | Associate
|  | SILICON INTEGRATED SYSTEMS CORP. and its Subsidiaries |  | Associate (Note A)
|  | PHOTRONICS DNP MASK CORPORATION |  | Other related party
|  | XIAMEN JINYUAN INDUSTRIAL DEVELOPMENT CO., LTD. |  | Directors and supervisors of subsidiary (Note B)
|  | FUJIAN ELECTRONICS & INFORMATION INDUSTRY ENTREPRENEURSHIP INVESTMENT LIMITED PARTNERSHIP |  | Directors of subsidiary (Note B)
Note A: Prior to August 2023, SIS held one board seat on UMC’s Board of Directors. Therefore, SIS was classified as other related party. Beginning from August 2023, the Company determines that it has significant influence over SIS and accounts for its investment in SIS as an associate. Please refer to Note 6(7) for the relevant information. Note B: Beginning from July 2023, the company is no longer serving as the directors and supervisors of subsidiary, and therefore is no longer considered a related party to the Company.
| (ii) | Operating revenues
|  | For the years ended December 31, |
|  | 2022 |  |  | 2023 |  |  | 2024 |
|  | NT$ |  |  | NT$ |  |  | NT$ |
|  | (In Thousands) |  |  | (In Thousands) |  |  | (In Thousands) |
Associates |  | $ | 5,744,098 |  |  | $ | 3,018,171 |  |  | $ | 3,611,015 |
Other related party |  |  | 40,474 |  |  |  | 4,463 |  |  |  | — |
Total |  | $ | 5,784,572 |  |  | $ | 3,022,634 |  |  | $ | 3,611,015 |
| (iii) | Accounts receivable, net
|  | As of December 31, |
|  | 2023 |  |  | 2024 |
|  | NT$ |  |  | NT$ |
|  | (In Thousands) |  |  | (In Thousands) |
Associates |  |  |  |  |  |  |  |
FARADAY TECHNOLOGY CORP. and its Subsidiaries |  |  |  |  |  |  |  |
FARADAY TECHNOLOGY CORP. |  | $ | 302,828 |  |  | $ | 456,332 |
ARTERY TECHNOLOGY CORPORATION, LTD. |  |  | 40,886 |  |  |  | 148,508 |
Others |  |  | 3,602 |  |  |  | 493 |
Other associates |  |  | 648 |  |  |  | 14,680 |
Total |  | $ | 347,964 |  |  | $ | 620,013 |
The sales price to the above related parties was determined through mutual agreement in reference to market conditions. The collection periods for domestic sales to related parties were month-end 30 - 60 days, while the collection periods for overseas sales were month-end 30 - 60 days.
| (iv) | Significant asset transactions
Acquisition of subsidiaries’ ownership For the years ended December 31, 2022 and 2024: None. For the year ended December 31, 2023:
|  | Trading Capital Amount |  |  | Transaction underlying |  |  | Purchase price |
|  | RMB¥ |  |  |  |  |  | NT$ |
|  | (In Thousands) |  |  |  |  |  | (In Thousands) |
XIAMEN JINYUAN INDUSTRIAL DEVELOPMENT CO., LTD. |  |  | 3,741,862 |  |  |  | Ownership of USCXM |  |  | $ | 17,945,970 |
FUJIAN ELECTRONICS & INFORMATION INDUSTRY ENTREPRENEURSHIP INVESTMENT LIMITED PARTNERSHIP |  |  | 674,762 |  |  |  | Ownership of USCXM |  |  |  | 3,263,473 |
Total |  |  | 4,416,624 |  |  |  |  |  |  | $ | 21,209,443 |
Acquisition of investments accounted for under the equity method For the year ended December 31, 2022: None. For the year ended December 31, 2023:
|  | Trading Volume (In thousands of shares) |  |  | Transaction underlying |  | Purchase price |
|  |  |  |  |  |  | NT$ |
|  |  |  |  |  |  | (In Thousands) |
Associates |  |  | 4,945 |  |  | Stock of UNIMICRON |  | $ | 608,224 |
For the year ended December 31, 2024:
|  | Trading Volume (In thousands of shares) |  |  | Transaction underlying |  | Purchase price |
|  |  |  |  |  |  | NT$ |
|  |  |  |  |  |  | (In Thousands) |
Associates |  |  | 1,723 |  |  | Stock of FARADAY |  | $ | 533,973 |
Please refer to Note 6(7) for the relevant information. Acquisition of intangible assets
|  | Purchase price |
|  | For the years ended December 31, |
|  | 2022 |  |  | 2023 |  |  | 2024 |
|  | NT$ |  |  | NT$ |  |  | NT$ |
|  | (In Thousands) |  |  | (In Thousands) |  |  | (In Thousands) |
FARADAY TECHNOLOGY CORP. |  | $ | 266,053 |  |  | $ | 323,551 |  |  | $ | 310,460 |
Disposal of subsidiary ownership For the years ended December 31, 2022 and 2023: None. For the year ended December 31, 2024:
|  | Transaction underlying |  |  | Trading Capital Amount |  |  | Disposal price |  |  | Gain on disposal |
|  |  |  |  | RMB¥ (In Thousands) |  |  | NT$ (In Thousands) |  |  | NT$ (In Thousands) |
Associates |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary of SIS - SIS SEMICONDUCTOR (SHANDONG) CO., LTD. |  |  | Ownership of UDS |  |  |  | 30,000 |  |  | $ | 341,387 |  |  | $ | 352 |
On April 2, 2024, the Board of Directors of HEJIAN approved to dispose of its 100% of ownership interest in the subsidiary, UDS. The disposal was completed in August 2024.
| (v) | Others
Mask expenditure
|  | For the years ended December 31, |
|  | 2022 |  |  | 2023 |  |  | 2024 |
|  | NT$ |  |  | NT$ |  |  | NT$ |
|  | (In Thousands) |  |  | (In Thousands) |  |  | (In Thousands) |
Other related party |  | $ | 2,581,409 |  |  | $ | 2,375,225 |  |  | $ | 2,285,797 |
Other payables of mask expenditure
|  | As of December 31, |
|  | 2022 |  |  | 2023 |  |  | 2024 |
|  | NT$ |  |  | NT$ |  |  | NT$ |
|  | (In Thousands) |  |  | (In Thousands) |  |  | (In Thousands) |
Other related party |  | $ | 812,185 |  |  | $ | 751,763 |  |  | $ | 621,737 |
| c. | Key management personnel compensation
|  | For the years ended December 31, |
|  | 2022 |  |  | 2023 |  |  | 2024 |
|  | NT$ |  |  | NT$ |  |  | NT$ |
|  | (In Thousands) |  |  | (In Thousands) |  |  | (In Thousands) |
Short-term employee benefits |  | $ | 2,047,118 |  |  | $ | 1,462,964 |  |  | $ | 1,223,667 |
Post-employment benefits |  |  | 2,782 |  |  |  | 2,732 |  |  |  | 2,603 |
Share-based payment |  |  | 719,786 |  |  |  | 500,391 |  |  |  | 298,500 |
Others |  |  | 649 |  |  |  | 618 |  |  |  | 417 |
Total |  | $ | 2,770,335 |  |  | $ | 1,966,705 |  |  | $ | 1,525,187 |

X
- Definition The entire disclosure for related parties. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2024-01-01 -Section Disclosures -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=24&code=ifrs-tx-2024-en-r&doctype=Standard&dita_xref=IAS24_g13-24_TI -URIDate 2024-03-27 + Details
Name: | ifrs-full_DisclosureOfRelatedPartyExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:textBlockItemType
Balance Type: | na
Period Type: | duration

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