Korea Zinc’s $7.4 billion “Project Crucible” has passed a key US environmental review, accelerating its plans for an integrated critical minerals smelter in Tennessee.
The company said Monday that the US Defense Department completed its Final Environmental Assessment under the National Environmental Policy Act. The department officially concluded that the project’s construction and operations will not significantly alter the surrounding environment.
The evaluation examined air quality, greenhouse gas emissions, water resources, waste and hazardous materials, and socio-economic impacts on local communities. The company received a “Finding of No Significant Impact (FONSI),” a critical prerequisite for Project Crucible, as federal and state agencies rely on these findings to grant permits and financial backing.
Project Crucible aims to establish a smelting facility in Tennessee, designed to process 11 critical minerals, 12 non-ferrous metals, including gold, and semiconductor-grade sulfuric acid. The company said the plant will leverage its industry-leading technology from its Onsan Smelter in Ulsan while adhering to stringent US environmental standards.
In May, the initiative became the first project designated under the federal “FAST-4” program following a memorandum of understanding between the Federal Permitting Improvement Steering Council and the State of Tennessee. The program streamlines multiple review processes from government agencies to rapidly secure critical mineral processing capabilities within the US.
“Obtaining a FONSI from the US Defense Department reflects our early and proactive engagement with authorities across site selection, design and environmental safeguards,” stated a Korea Zinc official. “Given the high expectations from both the US and Korean governments and the State of Tennessee, we will make every effort to execute this project smoothly.”
With the environmental milestone secured, Korea Zinc plans to move forward with individual construction and operational permits, laying the groundwork to start building the complex.
hyejin2@heraldcorp.com
