{"filing":{"accession_number":"0001193125-26-379275","cik":"0001033767","ticker":"UMC","company_name":"UNITED MICROELECTRONICS CORP","form":"6-K","filing_date":"2026-09-02","report_date":"2026-09-02","primary_document":"6k_on_09022026.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1033767/000119312526379275/6k_on_09022026.htm"},"events":[{"id":31126,"run_id":28550,"accession_number":"0001193125-26-379275","anchor_item_number":"EX-99.1","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"summary":"This announcement discloses the completion of a domestic unsecured convertible corporate bond issuance by United Microelectronics Corporation, with total proceeds of NT$4,792,798,780 fully received and remitted to the depository bank. This constitutes creation of a new direct financial obligation (debt issuance) and is material to investors as it affects the company's capital structure and financial position.","company_name":"UNITED MICROELECTRONICS CORP","ticker":"UMC","filing_date":"2026-09-02","form":"6-K","submitted_at":null,"items":[{"id":33928,"accession_number":"0001193125-26-379275","item_number":"EX-99.1","item_title":"umc-ex99_1.htm","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"This announcement discloses the completion of a domestic unsecured convertible corporate bond issuance by United Microelectronics Corporation, with total proceeds of NT$4,792,798,780 fully received and remitted to the depository bank. This constitutes creation of a new direct financial obligation (debt issuance) and is material to investors as it affects the company's capital structure and financial position.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-09-02T10:09:44.818156+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":33928,"accession_number":"0001193125-26-379275","item_number":"EX-99.1","item_title":"umc-ex99_1.htm","event_type":"debt_issuance","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"This announcement discloses the completion of a domestic unsecured convertible corporate bond issuance by United Microelectronics Corporation, with total proceeds of NT$4,792,798,780 fully received and remitted to the depository bank. This constitutes creation of a new direct financial obligation (debt issuance) and is material to investors as it affects the company's capital structure and financial position.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-09-02T10:09:44.818156+00:00","company_name":"UNITED MICROELECTRONICS CORP","ticker":"UMC","filing_date":"2026-09-02"}]}