Sunshine Silver Mining Included in VanEck Junior Gold Miners ETF

What Happened
Sunshine Silver Mining & Refining Company (SSMR) filed a Form 8-K on September 18, 2026 (Item 7.01) to disclose that it issued a press release announcing its inclusion in the VanEck Junior Gold Miners ETF. The press release is furnished as Exhibit 99.1 to the current report. The filing was signed by Michelle Shepston, General Counsel, on September 18, 2026. The company notes the disclosure is furnished under Regulation FD and is not “filed” for Section 18 liability purposes nor incorporated by reference in other filings.

Key Details

• Filing type: Form 8-K (Regulation FD disclosure), Item 7.01; press release furnished as Exhibit 99.1.
• Date of disclosure and press release: September 18, 2026.
• Signed by: Michelle Shepston, General Counsel.
• Legal note: Information furnished is not subject to Section 18 liabilities and is not incorporated by reference in other SEC filings.

Why It Matters
Inclusion in a thematic ETF like the VanEck Junior Gold Miners ETF can increase a small- or mid-cap miner’s visibility and potentially raise demand for its shares, as ETFs buy constituents to track their indexes. For investors, this is a corporate-development update (not earnings or management change) that may affect liquidity and investor attention; the filing does not provide financial results or operational guidance.