# EDGAR Filing Document

**Accession Number:** 0002091017
**File Stem:** 0001140361-26-023826
**Filing Date:** 2026-6
**Character Count:** 4341
**Document Hash:** 335495141eb53bc5570a1cd79f019967
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-26-023826.hdr.sgml**: 20260603

**ACCESSION NUMBER**: 0001140361-26-023826

**CONFORMED SUBMISSION TYPE**: 8-A12B

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260603

**DATE AS OF CHANGE**: 20260603

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Sunshine Silver Mining & Refining Co
- **CENTRAL INDEX KEY:** 0002091017
- **STANDARD INDUSTRIAL CLASSIFICATION:** GOLD & SILVER ORES [1040]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 853794822
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-A12B
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-43325
- **FILM NUMBER:** 261059766

**BUSINESS ADDRESS:**
- **STREET 1:** 2209 BIG CREEK ROAD
- **CITY:** KELLOGG
- **STATE:** ID
- **ZIP:** 83837-5011
- **BUSINESS PHONE:** 208-783-1700

**MAIL ADDRESS:**
- **STREET 1:** 2209 BIG CREEK ROAD
- **CITY:** KELLOGG
- **STATE:** ID
- **ZIP:** 83837-5011

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#### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### WASHINGTON, D.C. 20549

### FORM 8-A

#### FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES

#### PURSUANT TO SECTION 12(b) OR (g) OF THE

#### SECURITIES EXCHANGE ACT OF 1934

## SUNSHINE SILVER MINING & REFINING COMPANY
(Exact name of registrant as specified in its charter)

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| | |
|:---|:---|
| **Delaware** | **85-3794822** |
| (State of incorporation or organization) | (I.R.S. Employer Identification No.) |

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| | |
|:---|:---|
| **2209 Big Creek Rd, Kellogg, Idaho** | **83837** |
| (Address of principal executive offices) | (Zip Code) |

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Securities to be registered pursuant to Section 12(b) of the Act:

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| | |
|:---|:---|
| **Title of each class**<br> **to be so registered** | **Name of each exchange on which**<br> **each class is to be registered** |
| common stock, par value $0.001 per share | New York Stock Exchange |

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If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c) or (e), check the following box. ☒

If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d) or (e), check the following box. ☐

If this form relates to the registration of a class of securities concurrently with a Regulation A offering, check the following box. ☐

Securities Act registration statement or Regulation A offering statement file number to which this form relates (if applicable): 333-295768

Securities to be registered pursuant to Section 12(g) of the Act: None

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**Item 1.** **Description of Registrant's Securities to be Registered**<br>

For a description of the securities of Sunshine Silver Mining & Refining Company (the "<u>Registrant</u>") being registered hereunder, reference is made to the information set forth under the heading "Description of Capital Stock" contained in the Registrant's registration statement on Form S-1 (File No. 333-295768), as initially filed with the Securities and Exchange Commission (the "<u>Commission</u>") on May 11, 2026, as amended to the date hereof, and in the prospectus to be filed separately by the Registrant with the Commission pursuant to Rule 424(b) under the Securities Act of 1933, as amended, which prospectus shall be deemed to be incorporated by reference herein.

**Item 2.** **Exhibits**<br>

Under the "Instructions as to Exhibits" section of Form 8-A, no exhibits are required to be filed because no other securities of the Registrant are to be registered on the New York Stock Exchange and the securities to be registered hereby are not being registered pursuant to Section 12(g) of the Securities Exchange Act of 1934, as amended.

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#### SIGNATURE
Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized.

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| | | |
|:---|:---|:---|
|  | **SUNSHINE SILVER MINING & REFINING COMPANY** | **SUNSHINE SILVER MINING & REFINING COMPANY** |
| Date: June 3, 2026 | By: | /s/ Heather White |
|  |  | Name: Heather White |
|  |  | Title: Chief Executive Officer |

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