X0206 3 2021-07-28 0 0001853021 Metals Acquisition Corp MTAL 0001852852 Green Mountain Metals LLC 425 HOUSTON STREET, SUITE 400 FORT WORTH, TX 76102 0 0 1 0 Class B Common Shares Class A Common Shares 6037500 D Shares of Class B Common Shares will automatically convert into shares of the Issuer's Class A Common Shares at the time of the Issuer's initial business combination on a one-for-one basis, subject to adjustment, as described under the heading "Description of Securities" in the Issuer's registration statement on form S-1 (File No. 333-257854) (the "Registration Statement") and have no expiration date. The shares of Class B common shares beneficially owned by the reporting person includes up to 937,500 shares subject to forfeiture to the extent the underwriters of the initial public offering of the Issuer's securities do not exercise in full their over-allotment option as described in the Registration Statement. /s/ John Rhett Miles Bennett, Director of Green Mountain Metals LLC 2021-07-28