SSMR · Sunshine Silver Mining & Refining Co

Represents restricted stock units ("RSUs") granted to Thomas S. Kaplan. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest in full on the earlier of (i) the first anniversary of the grant date or (ii) the day immediately proceeding the date of the Issuer's 2027 Annual Meeting of Stockholders, subject to Mr. Kaplan's continued service as a member of the Issuer's Board of Directors through such date.

This transaction relates to the net exercise of warrants to purchase 2,739,640 shares of the Issuer's common stock immediately prior to the completion of the initial public offering of the Issuer's common stock, in accordance with the terms of the warrants.

These securities are owned directly by Electrum Silver US LLC ("ESUS"). Electrum Strategic Management LLC ("ESM") is the manager of ESUS. ESM is wholly owned by Electrum Global Holdings L.P. ("Global Holdco"), and TEG Global GP Ltd. ("TEG Global") is the general partner of Global Holdco. The Electrum Group LLC ("TEG") acts as an investment advisor to Global Holdco. Thomas S. Kaplan, Chairman of the Issuer's Board of Directors, is also Chairman, Chief Executive Officer and Chief Investment Officer of TEG. Each of these reporting persons (other than Mr. Kaplan who is a director of the Issuer) may be deemed to be a director by deputization of the Issuer.

Represents shares of restricted stock units ("RSUs") granted to the reporting person. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest in full on the earlier of (i) the first anniversary of the grant date or (ii) the day immediately proceeding the date of the Issuer's 2027 Annual Meeting of Stockholders, subject to the reporting person's continued service as a member of the Issuer's Board of Directors through such date.

This transaction relates to the net exercise of warrants to purchase 2,739,640 shares of the Issuer's common stock immediately prior to the completion of the initial public offering of the Issuer's common stock, in accordance with the terms of the warrants.

These securities are owned directly by Electrum Silver US LLC ("ESUS"). Electrum Strategic Management LLC ("ESM") is the manager of ESUS. ESM is wholly owned by Electrum Global Holdings L.P. ("Global Holdco"), and TEG Global GP Ltd. ("TEG Global") is the general partner of Global Holdco. The Electrum Group LLC ("TEG") acts as an investment advisor to Global Holdco. Thomas S. Kaplan, Chairman of the Issuer's Board of Directors, is also Chairman, Chief Executive Officer and Chief Investment Officer of TEG. Each of these reporting persons (other than Mr. Kaplan who is a director of the Issuer) may be deemed to be a director by deputization of the Issuer.

This transaction relates to the net exercise of warrants to purchase 2,739,640 shares of the Issuer's common stock immediately prior to the completion of the initial public offering of the Issuer's common stock, in accordance with the terms of the warrants.

These securities are owned directly by Electrum Silver US LLC ("ESUS"). Electrum Strategic Management LLC ("ESM") is the manager of ESUS. ESM is wholly owned by Electrum Global Holdings L.P. ("Global Holdco"), and TEG Global GP Ltd. ("TEG Global") is the general partner of Global Holdco. The Electrum Group LLC ("TEG") acts as an investment advisor to Global Holdco. Thomas S. Kaplan, Chairman of the Issuer's Board of Directors, is also Chairman, Chief Executive Officer and Chief Investment Officer of TEG. Each of these reporting persons (other than Mr. Kaplan who is a director of the Issuer) may be deemed to be a director by deputization of the Issuer.

Represents shares of restricted stock units ("RSUs") granted to the reporting person. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest in full on the earlier of (i) the first anniversary of the grant date or (ii) the day immediately proceeding the date of the Issuer's 2027 Annual Meeting of Stockholders, subject to the reporting person's continued service as a member of the Issuer's Board of Directors through such date.

Represents shares of restricted stock units ("RSUs") granted to the reporting person. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest in full on the earlier of (i) the first anniversary of the grant date or (ii) the day immediately proceeding the date of the Issuer's 2027 Annual Meeting of Stockholders, subject to the reporting person's continued service as a member of the Issuer's Board of Directors through such date.

Represents shares of restricted stock units ("RSUs") granted to the reporting person. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest in full on the earlier of (i) the first anniversary of the grant date or (ii) the day immediately proceeding the date of the Issuer's 2027 Annual Meeting of Stockholders, subject to the reporting person's continued service as a member of the Issuer's Board of Directors through such date.

Represents shares of restricted stock units ("RSUs") granted to the reporting person. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest in full on the earlier of (i) the first anniversary of the grant date or (ii) the day immediately proceeding the date of the Issuer's 2027 Annual Meeting of Stockholders, subject to the reporting person's continued service as a member of the Issuer's Board of Directors through such date.

Represents shares of restricted stock units ("RSUs") granted to the reporting person. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest in full on the earlier of (i) the first anniversary of the grant date or (ii) the day immediately proceeding the date of the Issuer's 2027 Annual Meeting of Stockholders, subject to the reporting person's continued service as a member of the Issuer's Board of Directors through such date.

Ospraie Management, LLC ("OM LLC") is the investment manager of ORA Fund and has been delegated voting and investment power and thus beneficial ownership of the securities of the Issuer held by ORA Fund. Ospraie Holding I, LP ("Ospraie Holding") may be deemed to beneficially own the securities of the Issuer held by ORA Fund as the managing member of OM LLC. Ospraie Management, Inc. ("OM Inc.") may be deemed to beneficially own the securities of the Issuer held by ORA Fund as the general partner of Ospraie Holding.

Ospraie Real Assets GP LLC ("Ospraie GP") may be deemed to beneficially own the securities of the Issuer held by ORA Fund as the general partner of ORA Fund. Dwight Anderson may be deemed to beneficially own the securities of the Issuer held by ORA Fund as the managing member of Ospraie GP and as the sole owner of OM Inc. Each reporting person disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein, if any.

On June 5, 2026, in connection with the closing by Sunshine Silver Mining & Refining Company (the "Issuer") of the initial public offering of its common stock (the "IPO"), a warrant to purchase 2,615,060 shares of the common stock of the Issuer (the "Warrant"), exercisable at $2.87 per share, held by Ospraie Real Assets Fund LP ("ORA Fund"), was automatically exercised on a cashless basis, resulting in the Issuer withholding 555,555 of the warrant shares to pay the exercise price and issuing to ORA Fund the remaining 2,059,505 shares.

The Warrant was outstanding as of the date of the Issuer's prospectus (the "Prospectus") relating to the IPO as disclosed in the Prospectus. This filing solely relates to the cashless exercise of the Warrant, which was effected solely by the surrender to the Issuer of shares of the Issuer's common stock issuable upon exercise of the Warrant and the Issuer's cancellation thereof to pay the exercise price of the Warrant. No shares of the Issuer's common stock were sold by the reporting person(s) and the shares issued to ORA Fund upon the cashless exercise of the Warrant remain subject to the lock-up agreement that was entered into by ORA Fund in connection with the IPO and disclosed in the Prospectus.

Ospraie Management, LLC ("OM LLC") is the investment manager of ORA Fund and has been delegated voting and investment power and thus beneficial ownership of the securities of the Issuer held by ORA Fund. Ospraie Holding I, LP ("Ospraie Holding") may be deemed to beneficially own the securities of the Issuer held by ORA Fund as the managing member of OM LLC. Ospraie Management, Inc. ("OM Inc.") may be deemed to beneficially own the securities of the Issuer held by ORA Fund as the general partner of Ospraie Holding.

Ospraie Real Assets GP LLC ("Ospraie GP") may be deemed to beneficially own the securities of the Issuer held by ORA Fund as the general partner of ORA Fund. Dwight Anderson may be deemed to beneficially own the securities of the Issuer held by ORA Fund as the managing member of Ospraie GP and as the sole owner of OM Inc. Each reporting person disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein, if any.

The warrant is exercisable until September 2, 2027; provided, that the warrant shall automatically be deemed to be exercised, on a cashless exercise basis, as to all shares of common stock of the Issuer for which it shall not previously have been exercised, upon the closing of an initial public offering by the Issuer.

Ospraie Management, LLC ("OM LLC") is the investment manager of ORA Fund and has been delegated voting and investment power and thus beneficial ownership of the securities of the Issuer held by ORA Fund. Ospraie Holding I, LP ("Ospraie Holding") may be deemed to beneficially own the securities of the Issuer held by ORA Fund as the managing member of OM LLC. Ospraie Management, Inc. ("OM Inc.") may be deemed to beneficially own the securities of the Issuer held by ORA Fund as the general partner of Ospraie Holding.

Ospraie Real Assets GP LLC ("Ospraie GP") may be deemed to beneficially own the securities of the Issuer held by ORA Fund as the general partner of ORA Fund. Dwight Anderson may be deemed to beneficially own the securities of the Issuer held by ORA Fund as the managing member of Ospraie GP and as the sole owner of OM Inc. Each reporting person disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein, if any.

Represents shares of restricted stock units ("RSUs") granted to the reporting person. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest in full on the earlier of (i) the first anniversary of the grant date or (ii) the day immediately proceeding the date of the Issuer's 2027 Annual Meeting of Stockholders, subject to the reporting person's continued service as a member of the Issuer's Board of Directors through such date.

This transaction relates to the net exercise of warrants to purchase 2,739,640 shares of the Issuer's common stock immediately prior to the completion of the initial public offering of the Issuer's common stock, in accordance with the terms of the warrants.

These securities are owned directly by Electrum Silver US LLC ("ESUS"). Electrum Strategic Management LLC ("ESM") is the manager of ESUS. ESM is wholly owned by Electrum Global Holdings L.P. ("Global Holdco"), and TEG Global GP Ltd. ("TEG Global") is the general partner of Global Holdco. The Electrum Group LLC ("TEG") acts as an investment advisor to Global Holdco. Thomas S. Kaplan, Chairman of the Issuer's Board of Directors, is also Chairman, Chief Executive Officer and Chief Investment Officer of TEG. Each of these reporting persons (other than Mr. Kaplan who is a director of the Issuer) may be deemed to be a director by deputization of the Issuer.

This transaction relates to the net exercise of warrants to purchase 2,739,640 shares of the Issuer's common stock immediately prior to the completion of the initial public offering of the Issuer's common stock, in accordance with the terms of the warrants.

These securities are owned directly by Electrum Silver US LLC ("ESUS"). Electrum Strategic Management LLC ("ESM") is the manager of ESUS. ESM is wholly owned by Electrum Global Holdings L.P. ("Global Holdco"), and TEG Global GP Ltd. ("TEG Global") is the general partner of Global Holdco. The Electrum Group LLC ("TEG") acts as an investment advisor to Global Holdco. Thomas S. Kaplan, Chairman of the Issuer's Board of Directors, is also Chairman, Chief Executive Officer and Chief Investment Officer of TEG. Each of these reporting persons (other than Mr. Kaplan who is a director of the Issuer) may be deemed to be a director by deputization of the Issuer.

Represents restricted stock units ("RSUs") granted to Thomas S. Kaplan. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest in full on the earlier of (i) the first anniversary of the grant date or (ii) the day immediately proceeding the date of the Issuer's 2027 Annual Meeting of Stockholders, subject to Mr. Kaplan's continued service as a member of the Issuer's Board of Directors through such date.

This transaction relates to the net exercise of warrants to purchase 2,739,640 shares of the Issuer's common stock immediately prior to the completion of the initial public offering of the Issuer's common stock, in accordance with the terms of the warrants.

These securities are owned directly by Electrum Silver US LLC ("ESUS"). Electrum Strategic Management LLC ("ESM") is the manager of ESUS. ESM is wholly owned by Electrum Global Holdings L.P. ("Global Holdco"), and TEG Global GP Ltd. ("TEG Global") is the general partner of Global Holdco. The Electrum Group LLC ("TEG") acts as an investment advisor to Global Holdco. Thomas S. Kaplan, Chairman of the Issuer's Board of Directors, is also Chairman, Chief Executive Officer and Chief Investment Officer of TEG. Each of these reporting persons (other than Mr. Kaplan who is a director of the Issuer) may be deemed to be a director by deputization of the Issuer.