Tesoro Gold Ltd has upgraded to the OTCQX Best Market from the OTCQB Venture Market, effective June 12, 2026. The company, focused on exploring gold assets with district-scale mining potential, began trading on the OTCQX under the symbol TSORF. This move is designed to broaden international investor reach and improve access for U.S. investors seeking exposure to Tesoro's exploration and project development activities.

The OTCQX Market is structured for established, investor-focused U.S. and international companies that meet high financial standards, follow best practice corporate governance, and demonstrate compliance with applicable securities laws. Graduating to OTCQX from OTCQB allows companies to demonstrate their qualifications and increase visibility among U.S. investors. U.S. investors can access current financial disclosure and Real-Time Level 2 quotes for Tesoro Gold Ltd on www.otcmarkets.com .

Zeff Reeves, Managing Director of Tesoro Gold Ltd, stated that commencing trading on the OTCQX Best Market represents an upgrade expected to broaden the company's international investor reach. The upgrade comes as Tesoro advances the El Zorro Gold Project in Chile's Coastal Cordillera towards a development decision. The project involves the discovery and definition of the country's first Intrusive Related Gold System.

Tesoro Gold Ltd's subsidiary owns 95.4% of the El Zorro Gold Project, which is located in a region hosting multiple world-class copper and gold mines. The company cites a large gold resource, strong exploration upside, and active development and permitting programs as factors driving increasing interest from North American investors. The upgrade to OTCQX positions the company to capture capital flows into gold equities.

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