<SEC-DOCUMENT>0001104659-25-099523.txt : 20251015
<SEC-HEADER>0001104659-25-099523.hdr.sgml : 20251015
<ACCEPTANCE-DATETIME>20251015072129
ACCESSION NUMBER:		0001104659-25-099523
CONFORMED SUBMISSION TYPE:	POS AM
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20251015
DATE AS OF CHANGE:		20251015

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MAC Copper Ltd
		CENTRAL INDEX KEY:			0001950246
		STANDARD INDUSTRIAL CLASSIFICATION:	METAL MINING [1000]
		ORGANIZATION NAME:           	01 Energy & Transportation
		EIN:				000000000
		STATE OF INCORPORATION:			Y9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		POS AM
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-273088
		FILM NUMBER:		251393396

	BUSINESS ADDRESS:	
		STREET 1:		3RD FLOOR
		STREET 2:		44 ESPLANADE, ST
		CITY:			ST. HELIER
		STATE:			Y9
		ZIP:			JE4 9WG
		BUSINESS PHONE:		8176989901

	MAIL ADDRESS:	
		STREET 1:		3RD FLOOR
		STREET 2:		44 ESPLANADE, ST
		CITY:			ST. HELIER
		STATE:			Y9
		ZIP:			JE4 9WG

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Metals Acquisition Ltd
		DATE OF NAME CHANGE:	20221011
</SEC-HEADER>
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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">As filed with the Securities and Exchange
Commission on October 15, 2025</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">Registration No. 333-273088</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"></P>



<P STYLE="font: bold 13pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 12pt; margin-bottom: 3pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 2pt solid; border-bottom: Black 1pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: bold 13pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 13pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 10pt">UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>
Washington, D.C. 20549</FONT></P>

<P STYLE="font: bold 13pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 13pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 10pt">POST-EFFECTIVE
AMENDMENT NO. 7</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 13pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 10pt">TO</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 13pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 10pt">FORM F-1<BR>
REGISTRATION STATEMENT</FONT></P>

<P STYLE="font: bold 13pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 13pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 10pt"><I>Under</I></FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: bold 13pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 10pt">The Securities
Act of 1933</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: bold 14pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">MAC COPPER LIMITED</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Exact name of Registrant as specified in its charter)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Not Applicable</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Translation of Registrant&rsquo;s name into English)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 50%; text-align: center; font-size: 10pt"><B>Jersey, Channel Islands</B></TD>
    <TD STYLE="width: 50%; text-align: center; font-size: 10pt"><B>Not Applicable</B></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: center; font-size: 10pt">(State or Other Jurisdiction of Incorporation or Organization)</TD>
    <TD STYLE="text-align: center; font-size: 10pt">(I.R.S. Employer Identification Number)</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Michael James McMullen<BR>
3rd Floor, 44 Esplanade,<BR>
St. Helier, Jersey, JE4 9WG<BR>
+44 1534 514 000</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Address and telephone number of Registrant&rsquo;s
principal executive offices)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Puglisi &amp; Associates<BR>
850 Library Ave., Suite 204<BR>
Newark, Delaware 19711<BR>
(302) 738-6680</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Name, address and telephone number of agent for
service)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><I>Copies to:</I></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><I>&nbsp;</I></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Ryan J. Dzierniejko<BR>
Skadden, Arps, Slate, Meagher <I>&amp; </I>Flom LLP<BR>
One Manhattan West<BR>
New York, NY 10001<BR>
(212) 735-3000</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Approximate date of commencement
of proposed sale to the public: <B>Not applicable. Removal from registration of securities that were not sold pursuant to the above referenced
registration statement.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">If only securities being registered
on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box. <FONT STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">If any of the securities being
registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933 (as amended,
the &ldquo;Securities Act&rdquo;), check the following box. <FONT STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">If this Form is filed to register
additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following box and list the Securities
Act registration statement number of the earlier effective registration statement for the same offering. <FONT STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">If this Form is a post-effective
amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement
number of the earlier effective registration statement for the same offering. <FONT STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">If this Form is a registration
statement pursuant to General Instruction I.C. or a post-effective amendment thereto that shall become effective upon filing with the
Commission pursuant to Rule 462(e) under the Securities Act, check the following box. <FONT STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">If this Form is a post-effective
amendment to a registration statement filed pursuant to General Instruction I.C. filed to register additional securities or additional
classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. <FONT STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Indicate by check mark whether
the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Emerging growth company <FONT STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">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<SUP>&dagger;</SUP> provided pursuant to
Section 7(a)(2)(B) of the Securities Act. <FONT STYLE="font-family: Times New Roman, Times, Serif"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in">&dagger;</TD><TD STYLE="text-align: justify"><B>The term &ldquo;new or revised financial accounting standard&rdquo; refers to any update issued by
the Financial Accounting Standards Board to its Accounting Standards Codification after April 5, 2012.</B></TD></TR></TABLE>

<P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P>

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<P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P>



<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">EXPLANATORY NOTE</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><B>DEREGISTRATION OF SECURITIES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">This Post-Effective Amendment
No. 7 (&ldquo;Post-Effective Amendment&rdquo;) to the Registration Statement on Form F-1 (File No. 333-273088) (the &ldquo;Registration
Statement&rdquo;), which was declared effective by the Securities and Exchange Commission on August 22, 2023, is being filed to deregister
all unsold securities registered by the Registrant pursuant to the Registration Statement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">On May 27, 2025, the Registrant
entered into a binding scheme implementation deed (the &ldquo;Implementation Deed&rdquo;) with Harmony Gold Mining Company Limited (&ldquo;Harmony&rdquo;),
and Harmony Gold (Australia) Pty Ltd (&ldquo;Harmony Australia&rdquo;), a wholly owned subsidiary of Harmony.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">On October 10, 2025, Harmony
Australia&rsquo;s acquisition of 100% of the issued share capital in the Company by way of a Jersey law scheme of arrangement pursuant
to Article 125 of the Companies (Jersey) Law 1991 (the &ldquo;Scheme&rdquo;) became legally effective, pursuant to the Implementation
Deed. On October 24, 2025, the Company will become a wholly owned subsidiary of Harmony Australia.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">As a result of the Scheme,
the Registrant has terminated any and all offerings of its securities pursuant to the Registration Statement. The Registrant hereby removes
from registration, by means of this Post-Effective Amendment, any and all of the securities registered under the Registration Statement
that remained unsold as of the date hereof. The Registration Statement is hereby amended, as appropriate, to reflect the deregistration
of such securities, and the Registrant hereby terminates the effectiveness of the Registration Statement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>


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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">SIGNATURE</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Pursuant to the requirements
of the Securities Act of 1933, as amended, the registrant certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form F-1 and has duly caused this Post-Effective Amendment to the Registration Statement to be signed on its
behalf by the undersigned, thereunto duly authorized, in the City of Albufeira, Portugal, on October 15, 2025.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><B>MAC COPPER LIMITED</B></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;&#8239;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%">&nbsp;</TD>
    <TD STYLE="width: 3%">By:</TD>
    <TD STYLE="border-bottom: Black 1pt solid; width: 47%">/s/ Michael James McMullen</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Name: Michael James McMullen</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Title: Chief Executive Officer</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.5in"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left">No other person is required to sign this Post-Effective
Amendment in reliance upon Rule 478 under the Securities Act of 1933, as amended.&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left"></P>

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