A major shift is underway in the global critical minerals landscape. Korea Zinc, the world’s largest zinc smelter, has announced a landmark $7.4 billion investment to build a strategic processing plant in Tennessee, USA. Backed by the US government, this move directly challenges China’s long-standing dominance over rare and strategic metals — and sets a precedent for reshaping the global industrial ecosystem.
Strategic Objectives and US Government Support
The facility, which is expected to start phased commercial operations between 2027 and 2029, will focus on processing antimony, germanium, gallium, zinc, lead, copper, and precious metals including gold and silver. These metals are essential for semiconductors, chipmaking, automotive manufacturing, renewable energy, and defense.
The US government will participate as part of a foreign joint venture with Korea Zinc. Around $2 billion will be raised via the joint venture, while the remaining capital will come from a mix of government loans, grants, and Korea Zinc’s own investment. This project represents one of the largest Korean investments in the American critical minerals sector.
The initiative also follows a broader geopolitical strategy. In October, South Korea pledged to invest $350 billion in the US as part of a trade deal aimed at reducing tariffs. Korea Zinc’s chairman, Choi Yun-beom, was part of the business delegation that visited Washington earlier this year to finalize cooperation frameworks.
Location, Output, and Technological Ambition
Korea Zinc plans to revitalize a former Nyrstar smelting site in Tennessee. Once rebuilt, the facility aims to annually produce:
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300,000 tonnes of zinc
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35,000 tonnes of copper
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200,000 tonnes of lead
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5,100 tonnes of rare earth elements
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Sulphuric acid for chipmaking processes
The 13-metal capacity of the facility not only aligns with the US national security goals but also signals Korea Zinc’s expansion beyond its dominant zinc portfolio. The company already produces key rare materials including indium, tellurium, cadmium, and germanium — many of which are currently under Chinese export restrictions.
A Global Realignment of Strategic Minerals
This project is a direct response to increasing supply chain volatility and the US’s urgent need to de-risk its dependence on China for critical materials. Currently, the US and its allies remain highly dependent on Chinese processing of rare earths and related minerals.
Beijing’s recent decision to issue general licenses for rare earth exports — seen as a conciliatory gesture amid US-China trade tensions — might offer short-term relief. However, the long-term strategy from Washington is clear: diversify sources, reinforce domestic capacity, and build trusted international partnerships.
Korea Zinc’s investment perfectly aligns with this goal. It marks the evolution of industrial diplomacy — a blend of economic interests and strategic resilience.
Implications for Industry and Investors
For the industrial sector, this facility creates new supply certainty for US-based manufacturers of electronics, semiconductors, electric vehicles, and defense components. It will also encourage further R&D investment, given the proximity to processed materials.
For investors, the market response was immediate — Korea Zinc shares surged up to 27% following local reports of the deal. The move strengthens the company’s position as a global leader in materials essential to the future economy.
From a policy perspective, the project is an embodiment of the US Inflation Reduction Act and its focus on domesticizing key supply chains — not just in production, but in refining and processing as well.