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Form 3 Sunshine Silver Mining For: Jun 03 Filed by: Ospraie Real Assets Fund LP

June 3, 2026 5:15 PM EDT
FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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OMB Number: 3235-0104
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1. Name and Address of Reporting Person *
Ospraie Real Assets Fund LP

(Last) (First) (Middle)
C/O OSPRAIE MANAGEMENT, LLC
411 THEODORE FREMD AVENUE, SUITE 240

(Street)
RYE NY 10580

(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
06/03/2026
3. Issuer Name and Ticker or Trading Symbol
Sunshine Silver Mining & Refining Co [ SSMR ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
X Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock, par value $0.001 per share 22,699,490
D (1) (2)
 
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Warrant (right to buy) 09/02/2022   (3) Common Stock 2,615,060 2.868 D (1) (2)  
Option (right to buy)   (4) 07/15/2035 Common Stock 250,000 4 D (1) (2)  
Explanation of Responses:
1. Ospraie Management, LLC ("OM LLC") is the investment manager of Ospraie Real Assets Fund LP ("ORA Fund") and has been delegated voting and investment power and thus beneficial ownership of the securities of Sunshine Silver Mining & Refining Company (the "Issuer") held directly 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.
2. 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.
3. The warrant held by ORA Fund is exercisable until the earlier of (i) September 2, 2027 and (ii) the closing of an initial public offering by the Issuer.
4. The options vest and become exercisable in three equal annual installments beginning on July 15, 2026.
Ospraie Real Assets Fund LP By: Ospraie Real Assets GP LLC, its General Partner By: /s/ Dwight Anderson Managing Member 06/03/2026
** Signature of Reporting Person Date
Ospraie Real Assets GP LLC By: Dwight Anderson Managing Member 06/03/2026
** Signature of Reporting Person Date
Ospraie Management, LLC By: Ospraie Holding I, L.P., its Managing Member By: Ospraie Management, Inc., its General Partner By: /s/ Dwight Anderson Sole Owner 06/03/2026
** Signature of Reporting Person Date
Ospraie Holding I, L.P. By: Ospraie Management, Inc., its General Partner By: /s/ Dwight Anderson Sole Owner 06/03/2026
** Signature of Reporting Person Date
Ospraie Management, Inc. By: /s/ Dwight Anderson Sole Owner 06/03/2026
** Signature of Reporting Person Date
/s/ Dwight Anderson 06/03/2026
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.


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