{"filing":{"accession_number":"0001193125-26-350180","cik":"0001033767","ticker":"UMC","company_name":"UNITED MICROELECTRONICS CORP","form":"6-K","filing_date":"2026-08-14","report_date":"2026-08-14","primary_document":"6k_on_08142026.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1033767/000119312526350180/6k_on_08142026.htm"},"events":[{"id":27680,"run_id":25249,"accession_number":"0001193125-26-350180","anchor_item_number":"EX-99","event_type":"financial_other","event_domain":"financial","is_material":true,"confidence":0.75,"summary":"This exhibit bundle contains three distinct disclosures: (1) a capital reduction due to RSA cancellation affecting paid-in capital and shares outstanding; (2) announcement of conversion price and premium rate for a convertible corporate bond issuance; and (3) routine insider trading and pledge activity. The capital reduction and convertible bond conversion terms are material financial events affecting shareholder equity and potential dilution, but they do not fit neatly into a single named category. The insider trading disclosure is routine administrative reporting. Classified as financial_other because the primary substance is financial (capital structure and debt conversion mechanics) but spans multiple financial event types without a single dominant classification.","company_name":"UNITED MICROELECTRONICS CORP","ticker":"UMC","filing_date":"2026-08-14","form":"6-K","submitted_at":null,"items":[{"id":29311,"accession_number":"0001193125-26-350180","item_number":"EX-99","item_title":"umc-ex99.htm","event_type":"financial_other","event_domain":"financial","is_material":true,"confidence":0.75,"reasoning":"This exhibit bundle contains three distinct disclosures: (1) a capital reduction due to RSA cancellation affecting paid-in capital and shares outstanding; (2) announcement of conversion price and premium rate for a convertible corporate bond issuance; and (3) routine insider trading and pledge activity. The capital reduction and convertible bond conversion terms are material financial events affecting shareholder equity and potential dilution, but they do not fit neatly into a single named category. The insider trading disclosure is routine administrative reporting. Classified as financial_other because the primary substance is financial (capital structure and debt conversion mechanics) but spans multiple financial event types without a single dominant classification.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-08-14T10:13:37.930419+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":29311,"accession_number":"0001193125-26-350180","item_number":"EX-99","item_title":"umc-ex99.htm","event_type":"financial_other","event_domain":"financial","is_material":true,"confidence":0.75,"reasoning":"This exhibit bundle contains three distinct disclosures: (1) a capital reduction due to RSA cancellation affecting paid-in capital and shares outstanding; (2) announcement of conversion price and premium rate for a convertible corporate bond issuance; and (3) routine insider trading and pledge activity. The capital reduction and convertible bond conversion terms are material financial events affecting shareholder equity and potential dilution, but they do not fit neatly into a single named category. The insider trading disclosure is routine administrative reporting. Classified as financial_other because the primary substance is financial (capital structure and debt conversion mechanics) but spans multiple financial event types without a single dominant classification.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-08-14T10:13:37.930419+00:00","company_name":"UNITED MICROELECTRONICS CORP","ticker":"UMC","filing_date":"2026-08-14"}]}