MAC Copper Ltd 2025年年度报告和过渡报告

(Mark One)☐REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIESEXCHANGE ACT OF 1934OR☒ANNUALREPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIESEXCHANGE ACT OF 1934For the fiscal year endedDecember 31, 2024OR☐TRANSITIONREPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIESEXCHANGE ACT OF 1934OR☐SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIESEXCHANGE ACT OF 1934Date of event requiring this shell company reportFor the transition period from toCommission File Number:001-41722MAC COPPER LIMITED(Exact name of Registrant as specified in its charter)Not Applicable(Translation of Registrant’s Name into English)Jersey, Channel Islands(Jurisdiction of incorporation or organization)3rd Floor, 44 Esplanade,St. Helier,Jersey,JE4 9WG(Address of principal executive offices)Michael James McMullen3rd Floor, 44 Esplanade,St. Helier,Jersey,JE4 9WG+441534 514 000(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: Title of each classTrading Symbol(s)Name of each exchange on whichregisteredOrdinary Shares, $0.0001 par value pershareMTALNew York Stock ExchangeSecurities registered or to be registered pursuant to Section 12(g) of the Act:NoneSecurities for which there is a reporting obligation pursuant to Section 15(d) of the Act:None Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of theclose of the period covered by the annual report. As of December 31, 2024, the registrant had82,438,431Ordinary Shares outstanding. Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the SecuritiesAct. ☐Yes☒No If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reportspursuant to Section13 or 15(d)of the Securities Exchange Act of 1934. Table of Contents ☐Yes☒No Note– Checking the box above will not relieve any registrant required to file reports pursuant to Section13 or15(d)of the Securities Exchange Act of 1934 from their obligations under those Sections. Indicate by check mark whether the registrant (1)has filed all reports required to be filed by Section13 or15(d)of the Securities Exchange Act of 1934 during the preceding 12months (or for such shorter period that theregistrant was required to file such reports), and (2)has been subject to such filing requirements for the past90days. Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required tobe submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months(or for such shorter period that the registrant was required to submit such files). Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-acceleratedfiler, or an emerging growth company. See definition of “large accelerated filer”, “accelerated filer,” and“emerging growth company” in Rule 12b-2 of the Exchange Act. ☒Large accelerated filer☐Accelerated filer☐Non-accelerated filer☐Emerging growth company If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate bycheck mark if the registrant has elected not to use the extended transition period for complying with any new orrevised financial accounting standards † provided pursuant to Section 13(a) of the Exchange 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’s assessmentof the effectiveness of its internal control over financial reporting under Section404(b)of the Sarbanes-Oxley Act(15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒ If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financialstatements of the registrant included in the filing reflect the correction of an error to previously issued financialstatements. Indicate by check mark whether any of those error corrections are restatements that required a recovery analysisof incentive-based compensation received by any of the registrant’s executive officers during the relevantrecovery 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 Standardsas issued by the InternationalAccounting 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. ☐Item17 Item18☐ If this is an a