联电2023年度报告

FORM 20-F (Mark One)☐REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OFTHE SECURITIES EXCHANGE ACT OF 1934 OR ☒ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THESECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THESECURITIES EXCHANGE ACT OF 1934 OR ☐SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OFTHE SECURITIES EXCHANGE ACT OF 1934 Date of event requiring this shell company report For the transition period fromto Commission file number 001-15128 United Microelectronics Corporation (Exact name of Registrant as specified in its charter) N/A(Translation of Registrant’s name into English) Taiwan, Republic of China(Jurisdiction of incorporation or organization) No. 3, Li-Hsin 2nd Road, Hsinchu Science Park,Hsinchu 300094, Taiwan, R.O.C.(Address of principal executive offices) Chitung Liu, Senior Vice President & Chief Financial OfficerTelephone: +886-2-2658-9168 / Email: ir@umc.com8F, No. 68, Section 1, Neihu Road, Taipei 114066, Taiwan, R.O.C.(Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact Person) Securities registered or to be registered pursuant to Section 12(b) of the Act. Trading Symbol(s)UMC Securities registered or to be registered pursuant to Section 12(g) of the Act. None(Title of Class) Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act. None(Title of Class) Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as ofthe close of the period covered by the annual report. 12,529,822,160 Common Shares of Registrant issued and outstanding as of December 31, 2023 Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of theSecurities Act.Yes☒No☐ If this report is an annual or transition report, indicate by check mark if the registrant is not required to filereports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.Yes☐No☒ Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter periodthat the registrant was required to file such reports), and (2) has been subject to such filing requirements forthe past 90 days.Yes☒No☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data Filerequired to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during thepreceding 12 months (or for such shorter period that the registrant was required to submit and post suchfiles).Yes☒No☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or an emerging growth company. See definition of “large accelerated filer,” “acceleratedfiler,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. Large acceleratedfiler☒ Accelerated filer☐ Emerging growth company If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP,indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards† provided pursuant to Section 13(a) of theExchange Act.☐ † The term “new or revised financial accounting standard” refers to any update issued by the FinancialAccounting Standards Board to its Accounting Standards Codification after April 5, 2012. Indicate by check mark whether the registrant has filed a report on and attestation to its management’sassessment of the effectiveness of its internal control over financial reporting under Section 404(b) of theSarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued itsaudit report.☒ If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether thefinancial statements of the registrant included in the filing reflect the correction of an error to previouslyissued financial statements.☐ Indicate by check mark whether any of those error corrections are restatements that required a recoveryanalysis of incentive-based compensation received by any of the registrant’s executive officers during therelevant recovery period pursuant to §240.10D-1(b).☐ Indicate by check mark which basis of accounting the registrant has used to prepare the financial statementsincluded in this filing: U.S. GAAP☐International Financial Reporting Standards as issuedby the International Accounting Standards Board☒Other☐ If “Other” has been checked in response to the previous question, indicate by check mark which financialstatement item the registrant has elected to follow.Item 17☐Item 18☐ If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined inRule 12b-2 of the Securit