Nippon Denkai, Ltd. completed the acquisition of Oak-Mitsui, Inc. from Mitsui Mining & Smelting Co., Ltd..

Nippon Denkai Ltd is a Japan-based company mainly engaged in the manufacture and sale of electrolytic copper foils. The products include copper foils for in-vehicle batteries, high-strength copper foils, copper foils for microcircuit substrates, ultrathin copper foils with carriers and general-purpose foils. The products are mainly materials for lithium-ion secondary batteries (LIB) installed in electric vehicles (EV) and hybrid automatic vehicles (HV) and materials for circuit boards mounted on electronic devices including 5th Generation Mobile Communication System (5G)-related devices such as mobile phones, among others.