Resonac Holdings (formerly Showa Denko) is a leading Japanese integrated chemical and materials manufacturer with a global footprint spanning semiconductors, advanced materials, and specialty chemicals. Born from the 2023 merger of Showa Denko and Hitachi Chemical, the company delivers high-performance solutions across electronics, mobility, and industrial markets. Resonac is positioned as a critical-materials innovator, supplying essential components to some of the world's most demanding technology supply chains.
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