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Korea Zinc is in discussions with U.S. tech firms to recycle data center waste for rare earth extraction, enhancing U.S. mineral independence from China. The firm is constructing a $7.4 billion smelter in Tennessee, the first U.S. facility of its kind since the 1970s, expected to produce 540,000 metric tons of non-ferrous metals, including critical minerals.

The initiative responds to China's tightened export controls, with U.S. government support aiding Korea Zinc's efforts. Construction is set to begin in early 2027, with operations anticipated to start in 2030, targeting profit margins of 17% to 19%.