Korea Zinc's $7.4b Tennessee smelter wins local backing

Project Crucible is Korea Zinc’s planned US production base for nonferrous metals. The company is developing it in Clarksville, Tennessee, with the US government and other strategic partners. The project matters because the United States wants more dependable domestic supplies of minerals used in advanced industries.

The complex will cover 650,000 square meters. It will produce 13 nonferrous metals, including 11 minerals designated critical by the US government. Korea Zinc plans to use smelting expertise developed at its Onsan facility in South Korea. The Tennessee project will serve semiconductor, artificial intelligence, defense, and manufacturing customers.

Construction is scheduled to begin in 2027. Full commercial operations are expected in 2029. The project includes $7.4 billion in planned investment and $210 million awarded by the Commerce Department under the CHIPS Act. Local officials support it because they expect jobs and stronger US mineral security.

Project Crucible is a $7.4 billion investment in a large metals complex in Tennessee. Its scale makes it significant for Clarksville and for US mineral policy. Local officials expect the project to create jobs while strengthening domestic supplies of materials needed by strategic industries.

The planned facility will cover 650,000 square meters. Tennessee state Rep. Ronnie Glynn said Korea Zinc will take over the existing zinc plant and double it in size. At a campaign rally, President Donald Trump said the investment would create 740 jobs in Montgomery County and Smith County. The article does not give a separate official employment forecast from Korea Zinc.

The Commerce Department has awarded the project $210 million through the CHIPS Act. Construction is set to start in 2027, with full commercial operations expected by 2029. The complex will produce 13 nonferrous metals, including 11 US-designated critical minerals.

A smelter turns mineral-bearing ore into metal by separating valuable elements from unwanted rock and compounds. This matters because mining alone does not create the refined materials needed for chips, defense equipment, or factories. Smelting is one major step between extracting ore and making industrial products.

Typically, ore is crushed and concentrated before entering a furnace or other processing equipment. Heat, chemical reactions, or both separate the target metal from oxygen, sulfur, and other impurities. The metal is then further refined, shaped, or converted into forms that manufacturers can use. Exact methods vary by mineral, so not every metal follows the same route.

The article describes Project Crucible as an integrated nonferrous metals smelting and processing complex. It will produce 13 metals and draw on Korea Zinc’s expertise from its Onsan facility. The project is intended to provide a US production base for industries that need these materials.

Project Crucible will produce 13 nonferrous metals, including 11 minerals designated critical by the US government. The article specifically names gallium, germanium, indium, and antimony. Their importance comes from their role in industries that Washington considers strategically important, especially semiconductors, defense equipment, and manufacturing.

These minerals can support specialized components and materials used in advanced production. Gallium, germanium, indium, and antimony are identified in the article as key minerals for semiconductors, defense equipment, and manufacturing. The planned facility would bring their smelting and processing closer to US customers instead of relying as heavily on overseas supply chains.

Korea Zinc intends to use its experience from the Onsan facility in South Korea. The Tennessee complex is also aimed at serving artificial intelligence industries. Construction is scheduled for 2027, and full commercial operations are expected in 2029, giving the United States a new domestic processing base.

The United States wants to reduce dependence on foreign suppliers because critical minerals support semiconductors, defense equipment, manufacturing, and artificial intelligence. If important materials come mainly from abroad, disruptions or geopolitical pressure could threaten production. The article highlights China as a particular concern.

Project Crucible is intended to create a US production base for these materials. It will produce 13 nonferrous metals, including 11 minerals designated critical by the US government. Gallium, germanium, indium, and antimony are among the named minerals. The project combines smelting and processing, rather than focusing only on mining.

Washington is linking mineral security with semiconductor policy. Commerce Department executive Bill Frauenhofer said new chipmaking capacity would not be enough without reliable supplies of chemicals, specialty gases, minerals, and other materials. Construction is set for 2027, with operations expected in 2029.

Critical minerals and other smelter products support advanced industries because they become inputs for specialized components, materials, and manufacturing processes. The article connects them directly with semiconductors, defense equipment, manufacturing, and artificial intelligence. Without dependable supplies, expanding production in those sectors could still face bottlenecks.

Gallium, germanium, indium, and antimony are examples named in the article. They are described as key minerals used in semiconductors, defense equipment, and manufacturing. A smelter and processing complex can convert mineral-bearing feedstock into usable metal products, helping supply companies that make chips, defense systems, and other industrial goods.

Bill Frauenhofer of the Commerce Department said chipmaking capacity alone would not be enough. The United States also needs reliable supplies of chemicals, specialty gases, minerals, and other essential materials. Korea Zinc plans for Tennessee production to serve semiconductor, artificial intelligence, and defense industries.

Building a new US smelter is significant because the article calls Project Crucible the country’s first new mineral smelter since 1979. That long gap highlights how unusual this investment is. It also explains why officials connect the project with domestic jobs and stronger critical-mineral security.

A smelter provides a domestic route from mineral-bearing feedstock to usable metals. Project Crucible would produce 13 nonferrous metals, including 11 US-designated critical minerals. The article names gallium, germanium, indium, and antimony among them. It says the project is designed to reduce dependence on foreign suppliers, particularly China.

The article does not specify which alternatives currently supply these materials. In general, established supply can come from imported refined metals, overseas smelters, existing domestic processors, and recycling; these are general industry alternatives, not options identified in the article. Construction is planned for 2027, with operations expected in 2029.