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Korea Zinc announced on September 2 that it has completed an expansion of its semiconductor-grade sulfuric acid production lines at its Onsan refinery in Ulsan, commencing operations with an increased annual capacity of 320,000 tons from 280,000 tons. The expansion, achieved through new lines No. 20

Korea Zinc has expanded its semiconductor-grade sulfuric acid capacity by 14%, reinforcing its position in the global semiconductor supply chain. Sulfuric acid plays a critical role in wafer cleaning, etching, and ion implantation processes, directly impacting device performance and yield. This expa