Thunder Mountain Gold Enters Options Review with Ocean Partners to Advance South Mountain Mine Toward 2026 Production

THMG
December 08, 2025

Thunder Mountain Gold, Inc. has entered an options review phase with Ocean Partners USA, Inc., a specialist in toll‑milling and metal trading, to evaluate toll‑milling, direct‑shipping ore, and concentrate production pathways at its South Mountain Mine in Idaho. The review marks a critical step toward bringing the polymetallic deposit—containing zinc, silver, gold, copper, and lead—into near‑term production.

The options review will conduct metallurgical testing, processing‑pathway analysis, and a commercial and economic evaluation to determine the most executable and profitable route. The study aims to identify a viable production model that could launch operations in 2026, with a focus on recoveries, product specifications, and logistics, permitting, and marketing considerations.

Thunder Mountain Gold has invested roughly US$25 million in the South Mountain project since 2007 and recently closed a US$2.5 million private placement to fund technical work and working capital. Historically the company has reported losses, but its stock has surged 963 % over the past year, reflecting investor optimism about the mine’s development potential.

The South Mountain Mine is an advanced‑stage project with existing underground infrastructure that can reduce capital requirements and shorten development timelines. Ocean Partners’ expertise in toll processing and marketing positions Thunder Mountain Gold to commercialize any future output efficiently, while the polymetallic nature of the deposit offers diversification against commodity price swings.

CEO Eric T. Jones said the collaboration aims to assemble decision‑quality data so the company can select the most executable and economic route forward. The data‑driven approach signals confidence in moving toward production and underscores the company’s commitment to rigorous evaluation before committing capital.

If the review confirms a viable pathway, operations could begin in 2026, potentially generating the first revenue streams and improving the company’s financial position. Thunder Mountain Gold will provide updates as the options review progresses and key milestones are reached.

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