Lotte Energy Materials (020150)
Lotte Energy Materials (020150), formerly Iljin Materials, makes electrolytic copper foil, the thin copper film that collects current at the anode in lithium-ion cells. In ETFpedia it represents the solid-state-battery theme as the anode-side current-collector node, the foil layer that nearly every conventional and many next-generation cells still depend on.
| Ticker | 020150 |
|---|---|
| Exchange | KOSPI |
| Sector | Battery Materials · Copper Foil (Elecfoil) |
| Country | South Korea |
| Wikidata | Q18142180 |
| Last updated | 2026-06-04 |
Next event:Next report · H1 2026 반기보고서 (half-year report), estimated · Estimated from Korea's 45-day semi-annual filing deadline; not company-confirmed. Last report: Q1 2026 분기보고서 filed 2026-05-15. (source)
Latest reported quarter:Q1 2026 (ended Mar 31, 2026) (reported2026-05-15)
Lotte Energy Materials reported broadly flat Q1 2026 revenue of ₩159.8 billion, up 1% year over year, with the operating loss narrowing 89% to ₩-5.0 billion; net income swung positive to ₩3.9 billion, an early sign of stabilization but not yet a full operating turnaround.
| Revenue | ₩1,598억 (KRW 159.8B)+1%YoY |
|---|---|
| Operating profit | ₩-50억 (KRW -5.0B)+89%YoY · Operating loss narrowed from ₩-460억 a year earlier |
| Net income | ₩39억 (KRW 3.9B)swing to profitYoY |
Recent & upcoming events
- · FY2025 results filed: revenue down, losses widened.Full-year 2025 revenue fell 25% to ₩6,775억 in the EV and battery down-cycle, and the operating loss widened to ₩-1,452억 from ₩-644억 in 2024, with a net loss of ₩-1,672억. (source)
- · Q1 stabilization and portfolio shift.Analysts framed 2026 as a pre-turnaround year, with a narrowing operating loss as higher-value foil mix improves and Lotte advances a 30,000-tonne copper-foil plant in Spain targeted for 2027. (source)
FY2025 and Q1 2026 figures are consolidated (CFS) per DART filings. Lotte Energy Materials reports copper foil (elecfoil) as its core product; a verified revenue-by-product split is not reproduced here to avoid unverified numbers.
Figures are as of 2026-05-15 and reflect the most recent public filings/IR releases; they are updated after each earnings report.
What does Lotte Energy Materials do?
Lotte Energy Materials makes electrolytic copper foil, known as elecfoil or 일렉포일, the very thin copper film that acts as the current collector on the anode side of a lithium-ion battery. The thinner the foil, the more active material a cell can pack in, so foil thickness is a real performance lever, and the company is one of the world’s leading makers of the thinnest battery-grade copper foil. It also supplies foil for flexible printed circuits. The business was previously Iljin Materials before the Lotte group acquired it (DART FY2025 사업보고서).
In the chain, it is a component supplier rather than an electrode chemistry maker: it sells the copper substrate that battery cells are assembled on, so its volumes track cell production while its margins ride the spread between the copper price and what it can charge for processing.
Why is Lotte Energy Materials a solid-state-battery company?
A battery anode needs something to carry its electrons out of the cell, and that something is copper foil. Lotte Energy Materials supplies this current collector, which makes it the anode-side component node of the solid-state-battery materials chain. Even as electrolyte chemistry changes, the cell still has to collect current from the anode, so the foil layer remains a structural piece of the theme.
What did Lotte Energy Materials report most recently?
The full-year 2025 result was the toughest of this group. Revenue fell 25% to ₩6,775억 in the EV and battery down-cycle, the operating loss widened to ₩-1,452억 from ₩-644억 in 2024, and the company posted a net loss of ₩-1,672억 (DART FY2025 사업보고서). There is no way to spin that: it was a loss-making year with falling sales.
Q1 2026 (the quarter ended March 31, 2026) looked steadier. Revenue was roughly flat at ₩159.8 billion, up 1% year over year, the operating loss narrowed 89% to ₩-5.0 billion, and net income swung positive to ₩3.9 billion (DART Q1 2026 분기보고서). It is an early stabilization, not a confirmed operating turnaround, since the operating line was still slightly negative.
Analysts frame 2026 as the stage before a real turnaround for Lotte Energy Materials, expecting the operating loss to narrow as the higher-value foil mix grows and the company advances a 30,000-tonne copper-foil plant in Spain targeted for 2027.
What are the risks for Lotte Energy Materials?
- Loss-making and shrinking sales. FY2025 revenue fell 25% and both operating and net lines were deep in the red; Q1 2026 stabilized but the operating line is still negative.
- EV and battery down-cycle. Copper-foil volumes depend directly on cell production, which weakened across 2025.
- Copper price and FX exposure. Margins ride the spread over the copper price and are sensitive to the won, with overseas expansion adding currency risk.
- Capex on overseas ramp. The 30,000-tonne Spanish plant and other expansions tie up capital well ahead of confirmed demand.
Related securities, concepts & terms
Related indices & ETFs
- Akros Korea Solid-State Battery ESS TOP2 Plus Index · AkrosKorean solid-state-battery and ESS basket that includes Lotte Energy Materials. No licensed tracking ETF.
Frequently asked questions about Lotte Energy Materials
What does Lotte Energy Materials do?
Lotte Energy Materials makes electrolytic copper foil, called elecfoil (일렉포일), the thin copper film used as the anode current collector in lithium-ion batteries. Formerly Iljin Materials, it is one of the world's leading makers of very thin battery copper foil and also supplies foil for flexible printed circuits. FY2025 revenue was ₩6,775억 (DART 사업보고서).
Why is Lotte Energy Materials part of the solid-state-battery theme?
Copper foil is the current collector that carries electrons at the anode, a structural component nearly every lithium-ion cell still needs. Lotte Energy Materials supplies this anode-side material, which places it in the component layer of the solid-state-battery materials chain (DART 사업보고서).
Did Lotte Energy Materials lose money in 2025?
Yes. FY2025 revenue fell 25% to ₩6,775억 in the EV and battery down-cycle, and the operating loss widened to ₩-1,452억 from ₩-644억 in 2024, with a net loss of ₩-1,672억 (DART 사업보고서). Q1 2026 was steadier: revenue was roughly flat at ₩1,598억, the operating loss narrowed 89% to ₩-50억, and net income swung positive to ₩39억.
When does Lotte Energy Materials next report earnings?
Korean issuers do not pre-announce earnings dates. Based on Korea's 45-day semi-annual deadline, Lotte Energy Materials' H1 2026 반기보고서 is expected around August 14, 2026 (estimated, not confirmed). It last filed its Q1 2026 분기보고서 on May 15, 2026 (DART).
Sources & references
- Lotte Energy Materials · FY2025 사업보고서 (annual business report, period ended Dec 2025) · DART / Financial Supervisory Service, 2026-03-10
- Lotte Energy Materials · Q1 2026 분기보고서 (quarterly report, period ended Mar 2026) · DART / Financial Supervisory Service, 2026-05-15
- Lotte Energy Materials · FY2025 results review and 2026 pre-turnaround outlook · Kiwoom Securities, 2026-02-04
- Lotte Energy Materials seeks 2026 recovery amid business restructuring · Battery Today, 2026-02-05