Teck Resources and Korea Zinc Finalize 2026 Processing Terms Amid Surging By-Product Values

The Canadian mining powerhouse Teck Resources and South Korea’s Korea Zinc Co. have reached a definitive agreement regarding the processing terms for zinc concentrate for the 2026 production cycle. This newly minted deal serves as a clear indicator of the shifting dynamics within the international raw materials market, particularly concerning the valuation and management of secondary by-products found within mineral ores.

A central component of the new arrangement involves Teck Resources securing more favorable terms for the extraction of silver and germanium. By adjusting these specific clauses, Teck is positioning itself to more effectively monetize these high-value co-products, which have become increasingly critical to the company's overall revenue stream from its mining operations.

Regarding the financial specifics, the base treatment charge (TC) for smelting has been set at $85 per tonne. This marks a significant recovery from the 2025 benchmark of $80 per tonne, a figure that was documented as the lowest rate seen in the zinc industry in over fifty years. Despite this rise in the base rate, the most impactful changes are found in the updated conditions for by-products, which shift the economic balance in favor of Teck Resources. Specifically, the parties agreed to lower the silver content threshold required for payment, thereby increasing Teck's share of the silver revenue. Additionally, for the first time in the company's history, Teck will implement a processing fee for the germanium contained in its concentrates.

The driving force behind these strategic shifts was the unprecedented volatility and price growth of by-product metals. Throughout 2025, silver prices experienced a massive 150% surge, while germanium prices rose by 75%. As the industry moved into the late 2025 and early 2026 period, the price of silver climbed past the $100 per ounce mark, fundamentally changing the profitability calculus for both miners and smelters.

Korea Zinc, which is estimated by industry experts to handle roughly 5% of the entire global silver supply, saw its financial results reach record highs in 2025. This peak in profitability occurred even while base treatment charges were at historic lows, highlighting the massive financial contribution of by-products to the bottom line of modern smelting operations. The 2026 agreement acknowledges this reality by ensuring that the value of these metals is more accurately reflected in the processing fees.

This agreement between Teck Resources and Korea Zinc sets a new precedent for the industry, moving away from traditional models that focused primarily on the base metal. As the demand for specialized metals like germanium continues to grow alongside precious metals like silver, the 2026 terms reflect a more nuanced and sophisticated approach to global commodity trading and mineral processing.