Lotte Energy Materials pivots from EV weakness to AI, ESS copper foil

DIGITIMESSeptember 8, 2026en

Cooling electric vehicle demand is forcing South Korean copper foil makers to rethink capital and capacity. Lotte Energy Materials has sold a 90% stake in its architectural exterior contracting subsidiary Lotte EcoWall for KRW170.8 billion (approx. US$120 million), and is redirecting the proceeds into its core copper foil business.

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