{"filing":{"accession_number":"0001193125-26-303966","cik":"0001033767","ticker":"UMC","company_name":"UNITED MICROELECTRONICS CORP","form":"6-K","filing_date":"2026-07-15","report_date":null,"primary_document":"6k_on_07152026.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1033767/000119312526303966/6k_on_07152026.htm"},"events":[{"id":17986,"run_id":16139,"accession_number":"0001193125-26-303966","anchor_item_number":"EX-99.1","event_type":"financial_other","event_domain":"financial","is_material":true,"confidence":0.75,"summary":"UMC's subsidiary Fortune Venture Capital Corporation disposed of 3,706,000 shares of Taiwan Semiconductor Co., Ltd. between January and July 2026, realizing a gain of NTD 137.6 million. The transaction is disclosed as a material asset disposal for financing purposes. While the shareholding ratio (1.15%) and transaction size relative to total assets (2.42%) are modest, the gain is material and the disclosure is required under Taiwan securities regulations for asset disposals by public companies. This is a financial event—specifically a divestiture—that does not fit the narrower categories of M\u0026A activity or debt issuance.","company_name":"UNITED MICROELECTRONICS CORP","ticker":"UMC","filing_date":"2026-07-15","form":"6-K","submitted_at":null,"items":[{"id":16658,"accession_number":"0001193125-26-303966","item_number":"EX-99.1","item_title":"umc-ex99_1.htm","event_type":"financial_other","event_domain":"financial","is_material":true,"confidence":0.75,"reasoning":"UMC's subsidiary Fortune Venture Capital Corporation disposed of 3,706,000 shares of Taiwan Semiconductor Co., Ltd. between January and July 2026, realizing a gain of NTD 137.6 million. The transaction is disclosed as a material asset disposal for financing purposes. While the shareholding ratio (1.15%) and transaction size relative to total assets (2.42%) are modest, the gain is material and the disclosure is required under Taiwan securities regulations for asset disposals by public companies. This is a financial event—specifically a divestiture—that does not fit the narrower categories of M\u0026A activity or debt issuance.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-07-15T10:10:25.760505+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":16658,"accession_number":"0001193125-26-303966","item_number":"EX-99.1","item_title":"umc-ex99_1.htm","event_type":"financial_other","event_domain":"financial","is_material":true,"confidence":0.75,"reasoning":"UMC's subsidiary Fortune Venture Capital Corporation disposed of 3,706,000 shares of Taiwan Semiconductor Co., Ltd. between January and July 2026, realizing a gain of NTD 137.6 million. The transaction is disclosed as a material asset disposal for financing purposes. While the shareholding ratio (1.15%) and transaction size relative to total assets (2.42%) are modest, the gain is material and the disclosure is required under Taiwan securities regulations for asset disposals by public companies. This is a financial event—specifically a divestiture—that does not fit the narrower categories of M\u0026A activity or debt issuance.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-07-15T10:10:25.760505+00:00","company_name":"UNITED MICROELECTRONICS CORP","ticker":"UMC","filing_date":"2026-07-15"}]}