Iljin Materials Co., Ltd. engages in production and sale of electronic foils for printed circuit boards (PCB). It operates through the following business division: Elecfoil and Energy. The Elecfoil business offers I2B, IHT, IUT, I2K, IKD, and ICS. The Energy business produces lithium manganese oxide used as a cathode material for rechargeable batteries. The company was founded on August 11, 1987 and is headquartered in Iksan, South Korea.