Lotte Energy Materials is a South Korea–based manufacturer of advanced electronic materials, best known for electrolytic copper foil used as the current collector in lithium‑ion batteries. The company was formerly Iljin Materials and became part of the Lotte Group following its acquisition by Lotte Chemical, after which it was rebranded as Lotte Energy Materials.
Its battery‑grade copper foils are supplied to global cell and electronics manufacturers for applications in electric vehicles, energy storage systems, and consumer devices. The company also provides copper foils for broader electronic and industrial uses. Lotte Energy Materials operates production and R&D in South Korea and internationally, including Malaysia, and continues to expand capacity to support growth in the rechargeable battery supply chain.
Posted KRW 5.6864 trillion revenue and KRW 110.1 billion operating profit; advancing Daesan and Yeosu restructurings and bringing Yulchon compounding plant into operation this year.
Targets >60% specialty by 2030; building a 500k t/yr compounding plant; creating hydrogen value chain—four fuel-cell plants (80MW) and 450‑bar H2 hub; expanding high-end copper foil and TMAH output.
Recorded KRW 18,483B revenue, KRW 943.6B loss in 2025. Focus on reducing commodity petrochemicals, expanding high-value materials, and boosting eco-friendly energy capacity.
Shifting from commodity petrochemicals, the company invests in specialty materials, hydrogen, and semiconductor solutions, while enhancing financial stability through strategic divestments.
Sales reached KRW 4.7861 trillion with a KRW 132.6 billion loss. Structural reforms and asset sales aim to boost competitiveness and financial stability.
