█ On a consolidated basis, revenue recorded KRW 204.9 billion with an operating loss of KRW 31.1 billion… The loss narrowed compared to the previous quarter due to increased sales volume from key customers and improved utilization rates driven by higher sales.
█ The company is focusing its full capabilities on securing profitability in the second half of the year through technological and marketing innovation… LOTTE Energy Materials has filed a domestic trademark application for ‘HiSTEP’, Korea’s first hybrid high-end copper foil product brand, featuring the ‘ST5H’ and ‘ST6H’ series.
█ The copper foil market for renewable energy ESS (Energy Storage Systems) is experiencing rapid growth, and the company is concentrating on improving performance through an expanded lineup of high-value-added products and supplying new customers…
█ The Malaysian plant is scheduled to begin production of high-end copper foil for EVs in 2026 to meet increasing demand from customers… The company is establishing a tailored production and supply system that includes existing Korean battery makers as well as clients in North America, Europe, and Greater China.
█ CEO Kim Yeon-Seop stated, “Through the launch of the ‘HiSTEP’ product brand, we plan to strengthen technology-driven sales and marketing targeted at global cell makers and OEMs, aiming to dominate the high-quality copper foil market.”
LOTTE Energy Materials (CEO Kim Yeon-Seop) announced its provisional consolidated results for the second quarter of 2025, reporting revenue of KRW 204.9 billion and an operating loss of KRW 31.1 billion. Despite unfavorable external factors such as a weak exchange rate and rising copper prices, the operating loss narrowed compared to the previous quarter due to improved utilization rates driven by increased sales volume.
Looking ahead to the second half of the year, the company anticipates continued uncertainty in the North American electric vehicle (EV) market. However, it expects gradual performance improvement through diversification across applications such as ESS (energy storage systems), mobile devices, and IT, along with expanded sales of high-value-added products and new customer acquisitions.
LOTTE Energy Materials announced that it will focus its full organizational capabilities on securing profitability in the second half by driving innovation in technology and marketing. As part of this initiative, the company is pursuing the branding of its ‘ST5H’ and ‘ST6H’ products — Korea’s first hybrid high-end copper foil solutions. By achieving both high tensile strength and elongation, these high-specification materials enable stable ultra-thin foil production. To deliver advanced solutions more quickly to customers and offer differentiated product services based on its unrivaled high-end copper foil technology, the company has launched the ‘HiSTEP’ brand.

▲ Trademark for ‘HiSTEP’, a hybrid high-End product brand
In addition, the demand for copper foil used in renewable energy ESS (Energy Storage Systems) continues to grow, driving sustained expansion in the related market. LOTTE Energy Materials is focusing on performance improvement by expanding sales of high-value-added products and supplying new customers, leveraging its diverse product lineup.
The Malaysian plant is scheduled to begin production of high-end copper foil for electric vehicles (EVs) in 2026, in response to growing demand from customers. It is establishing a customized production and supply system that targets not only domestic battery makers but also customers in North America, Europe, and Greater China. By mass-producing ‘HiSTEP’ products, which combine high tensile strength, high elongation, and ultra-thin foil characteristics, the company aims to broaden its customer base to include mobile, IT battery, and next-generation EV battery manufacturers, ultimately securing leadership in the premium copper foil market.
CEO Kim Yeon-Seop of LOTTE Energy Materials stated, “We expect a gradual improvement in performance in the second half of the year through product mix optimization with high-value-added offerings, diversification into applications such as ESS and small mobile/IT batteries, and expansion of our customer base.” He added, “Through the launch of the ‘HiSTEP’ product brand, we aim to strengthen technical sales and marketing targeted at global cell makers and OEMs, with the goal of dominating the high-quality copper foil market.”
Meanwhile, as of the end of Q2 2025, LOTTE Energy Materials maintained a consolidated debt ratio of 22.3% and a borrowing ratio of 7.6%, reflecting one of the most stable financial structures in the industry. This positions the company to respond flexibly to rapidly changing market conditions.