- Business
- WONIK Materials Co.,Ltd. WONIK Materials Co.,Ltd. manufactures and sells high-purity specialty gases and precursors for the semiconductor and display industries; its core products include ammonia (NH3), nitrous oxide (N2O), propylene (C3H6), phosphine mixtures (PH3MIX), germanium tetrahydride, disilane, and laser mix gases, as well as semiconductor and display applications such as CVD and diffusion, etching and cleaning, implant and doping, excimer laser, and precursors for elements, logics, DRAM, NAND, and PCM; the company also produces, refines, fills, and supplies industrial gases. Founded in December 2006 through the spin-off of the specialty gas division from Wonik IPS and headquartered in Ochang-eup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do, South Korea, WONIK Materials operates manufacturing facilities in Yangcheong, Ochang, and Jeonui, with sales offices in Pangyo and overseas subsidiaries in Xi'an and Weinan, China. The company serves leading domestic customers including Samsung Electronics and SK Hynix, as well as global semiconductor firms, and maintains certifications such as ISO 9001, ISO 14001, OHSAS 18001, KOLAS, and SEOMS 31001; it listed on KOSDAQ in 2011. Recent expansions include plans for a $46 million facility in Manor, Texas, announced in 2024, to supply Samsung Electronics, NXP Semiconductors, Infineon Technologies, and Texas Instruments with specialty gases, distribution, quality control, and production capabilities.