Lotte Energy Materials sells 90% of EcoWall unit for US$143.2M to fund AI pivot
What's the deal? Lotte Energy Materials, a South Korean copper foil maker, is selling a 90% stake in its curtain wall construction subsidiary Lotte EcoWallDealroom has a profile for this one. Try Dealroom → to Reelson Private Equity for approximately US$143.2M. The divestiture sheds a profitable but non-core business — EcoWall posted roughly US$109M in revenue and US$10.1M in operating profit last year — to free up capital for higher-value materials.
"We decided on this sale to realign our business portfolio around future materials," a Lotte Energy Materials official said.
Why now? Lotte Energy Materials is racing to scale up production of copper foil for AI data centres. It plans to expand circuit foil capacity at its Iksan plant from 3,700 tons to 16,000 tons by 2027 — a more-than-fourfold increase. The company is also ramping up battery foil output for energy storage systems at its Malaysia plant.
The proceeds will fund a four-pillar product strategy: AI circuit foil, ultra-thin foil for semiconductors, battery foil for ESS, and battery foil for electric vehicles. Across the wider Lotte group, chemical affiliates are restructuring to shift away from basic materials toward advanced technology products.
What could go wrong? Lotte EcoWall is Korea's top curtain wall contractor with proven technical capabilities and a healthy EBITDA margin above 10%. Selling a reliable cash generator to bet on capital-intensive foil expansion carries execution risk — especially as copper foil demand remains tied to the pace of AI infrastructure buildouts and EV adoption, both of which face supply chain and policy uncertainties.
The signal: The deal illustrates a broader pattern among Asian industrial conglomerates: divesting legacy businesses to chase the AI supply chain boom. Dealroom lists EcoWall as still in the "early growth" stage despite its market-leading position, underscoring how a profitable but mature construction unit can be undervalued relative to the capital-intensive bets its parent wants to make. As hyperscalers pour billions into data centres, materials companies increasingly see circuit foil and semiconductor components as higher-margin growth worth restructuring around — whether demand materialises fast enough to justify the pivot is the key question.
Read more: en.sedaily.com
