SK NEXILIS

What SK NEXILIS does

SK Nexilis Co., Ltd. (에스케이넥실리스 주식회사) is a South Korean manufacturer of electrodeposited copper foil, headquartered in Jeongeup-si (Jeollabuk-do) with a wholly-owned subsidiary structure under SKC Co., Ltd. and ultimate ownership within SK Group. Founded in 1996 and rebranded SK Nexilis in April 2020 following SKC's acquisition of KCFT, the company produces battery copper foil serving as the anode current collector in lithium-ion batteries, along with (historically) flexible copper clad laminates (FCCL) for display and 5G applications. Its product portfolio spans the B·E·S·T·U lineup — standard B-Foil (6-20μm), high-elongation E-Foil, high-strength S-Foil (6-12μm), ultra-thin T-Foil (under 5μm), and ultra-high-strength U-Foil (6-10μm, 65kgf/mm² tensile), plus a high-heat-resistance W-Foil — built on proprietary Recipe technology and Roll-to-Roll electrodeposition using large Ti drums in copper sulfate solution.

The company sells directly to tier-1 lithium-ion battery manufacturers — explicitly Samsung SDI, LG Energy Solution, and affiliate SK On Co., Ltd. — with approximately 94.5-95% of copper foil output historically tied to EV battery demand. Manufacturing is conducted across six Korean plants (52,000 tonnes annual capacity), two Malaysia plants in Kota Kinabalu Industrial Park (57,000 tonnes, RE100-compliant under a USD 210M green term loan and RM 2.0B ASEAN Green SRI Sukuk Wakalah programme), and one Poland plant under construction in Stalowa Wola's E-Mobility Industrial Zone (50,000 tonnes target). Aggregate targeted global capacity reached ~166,000 tonnes by end-2024, and a 50,000-tonne North America facility is planned. A US branch office in Johns Creek, Georgia supports North American customer coverage (near SK Battery America's operations).

SK Nexilis monetizes predominantly through B2B hardware sales of copper foil on long-term negotiated contracts; pricing is not publicly disclosed and there are no distributors or resellers. Sales channels are direct enterprise field sales via a dedicated copper foil marketing team ([email protected]). In 2025 the company finalized the $225M divestiture of its thin film/FCCL business to Affirma Capital (subsequently Flexion Corporation) as part of a strategic refocus on core copper foil; the FCCL customer book had included Samsung Display and LG Display. Despite ongoing geographic and capacity expansion, SK Nexilis reported a 174.6 billion KRW operating loss in 2025 amid slowing global EV demand, and is undergoing SK Group-wide cost-cutting measures and a commercial pivot toward energy storage systems, robotics, drones, defense, and aerospace.

Name

SK NEXILIS

Legal name

에스케이넥실리스 주식회사 (SK Nexilis Co., Ltd.)

Website

https://sknexilis.com

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

251–500 employees

Short description

SK Nexilis is a South Korean electrodeposited copper foil manufacturer producing ultra-thin anode current collectors for lithium-ion batteries, supplying major global EV battery makers including Samsung SDI, LG Energy Solution, and SK On via plants in Korea, Malaysia, and Poland.

Ownership category

akta.pro rank

Product category

Battery Materials (Copper Foil)

akta.pro primary industry

Current Collectors & Foils (Copper, Aluminum) Manufacturing (EUAFABAF)

Keywords

• Copper foil manufacturing
• Lithium-ion battery materials
• Electrodeposited copper foil
• Flexible copper clad laminate
• Battery anode current collector

Headquarters

HQ city

Jeongok

HQ country

South Korea

HQ region

Asia

Offices6 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Personnel, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Battery Copper Foil Sales: Sale of ultra-thin electrodeposited copper foil as anode current collector for lithium-ion batteries used in EVs, energy storage systems, drones, robotics, defense and aerospace. Sold directly to major global battery manufacturers. Approximately 95% of output historically sold to EV battery manufacturers, with growing ESS and other sector diversification.
2. Flexible Copper Clad Laminate (FCCL) Sales: Sale of FCCL products for display and 5G communication applications. 1-metal FCCL for standard applications; 2-metal FCCL for high-resolution OLED mobile displays. Note: FCCL business was being transferred to Flexion Corporation (formerly Affirma Capital) in 2025 per business restructuring announcement.
3. Thin Film Manufacturing Division Sale: Sale of thin film manufacturing division to Affirma Capital (deal finalized December 2025) for $225 million as part of business restructuring and focus on core copper foil operations.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

SK Nexilis manufactures and sells electrodeposited copper foil used as anode current collectors for lithium-ion batteries, and flexible copper clad laminate (FCCL) substrates for high-resolution displays and 5G applications. The company's flagship battery copper foil product family (U-Foil, W-Foil, B-Foil, E-Foil, S-Foil, T-Foil) covers thicknesses from under 5 micrometers up to 20 micrometers with industry-leading tensile strength, width (1,400mm), and roll length (77,000m). Customers include global battery manufacturers Samsung SDI, LG Energy Solution, and SK On, as well as display manufacturers Samsung Display and LG Display.

Product overview

SK Nexilis is a global manufacturer of copper foil and flexible copper clad laminate (FCCL) for lithium-ion batteries and display applications. The company produces a full line-up of battery copper foil products (U-Foil, W-Foil, B-Foil, E-Foil, S-Foil, T-Foil) serving as anode current collectors for EVs and energy storage systems, alongside FCCL products (1-metal and 2-metal variants) for flexible displays and 5G circuits. The product portfolio leverages proprietary Roll-to-Roll technology enabling ultra-thin (4µm), ultra-wide (1,400mm), and ultra-long (77,000m) manufacturing capabilities.

Differentiator

Problem solved

Functional benefit

Brands

• U-Foil: Ultra high-strength copper foil for batteries with excellent process stability
• W-Foil
• B-Foil
• E-Foil
• S-Foil
• T-Foil

Products and services

• Battery Copper Foil Electrodeposited copper foil serving as the anode current collector for lithium-ion batteries. Enables battery high-capacity, lightweight design, and cost reduction through ultra-thin, ultra-wide, and ultra-long roll manufacturing. Sold directly to major global battery manufacturers.
• U-Foil (Ultra High Strength Copper Foil) Ultra-high tensile strength copper foil (6-10 micrometer thickness) with 65kgf/mm² tensile strength providing excellent process stability, enabling higher coating line speeds and increased anode active material loading for battery manufacturers.
• W-Foil (High Heat Resistant Copper Foil) High-heat resistance copper foil with strength characteristics maintained after thermal processing, preventing anode deformation and enhancing battery reliability during charging/discharging.
• B-Foil (Standard Battery Copper Foil) Standard battery copper foil (6-20 micrometer thickness) with proven long-term reliability for lithium-ion batteries, widely used across all battery types including cylindrical, pouch, and square formats.
• E-Foil (High Strength, High Elongation Copper Foil) High-strength, high-elongation copper foil combining moderate strength at room temperature with high elongation after thermal processing for improved battery reliability and processability.
• S-Foil (High Strength Copper Foil) High tensile strength copper foil providing excellent handling during battery manufacturing with resistance to wrinkles, tears, and surface defects at room temperature and high elongation after thermal treatment.
• T-Foil (Ultra-Thin Copper Foil) Ultra-thin copper foil (less than 5 micrometer thickness) enabling high-capacity batteries and cost reduction in manufacturing processes through superior tensile strength properties for high-capacity battery designs.
• FCCL (Flexible Copper Clad Laminate) Flexible copper clad laminate used as substrate material for flexible printed circuit boards, enabling ultra-fine circuitry for high-resolution displays and 5G communication applications. Sold to display manufacturers including Samsung Display and LG Display. Note: FCCL business was transferred to Flexion Corporation (Affirma Capital) in 2025 as part of business restructuring.
• 2-Metal FCCL Semi-additive FCCL supporting flexible mobile displays and 5G communication applications with ability to implement 2.5x image signal compared to 1-metal COF for high-resolution OLED displays.

Named customers5 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Two partnerships are on record, tiered minor and core.

• RAM Sustainability Sdn BhdminorOthers · 14 August 2024RAM Sustainability assigned a Gold Sustainable Finance Rating to SK Nexilis Malaysia's Green Sukuk Framework, validating alignment with ICMA Green Bond Principles, ASEAN Green Bond Standards, and Securities Commission Malaysia's SRI Sukuk Framework. RAM Sustainability also conducted a Second-Party Opinion on the eligible green project category for copper foil manufacturing in renewable energy and sustainable mobility batteries.
• Sabah Electricity Sdn BhdcoreStrategic or Co-development Partner · 17 July 2023SK Nexilis Malaysia and Sabah Electricity signed a Memorandum of Understanding (MOU) for the supply of electricity to support RE100 commitments at the KKIP plants. Sabah Electricity is providing power supply to enable SK Nexilis Malaysia's renewable energy operations, critical for serving RE100 commitments and meeting major customers' supply chain sustainability requirements.

Scale indicators11 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Iljin Materials: Korean producer of electrolytic copper foil for lithium-ion batteries, also supplying Samsung SDI, LG Energy Solution and SK On. Closest domestic competitor to SK Nexilis and competes directly on ultra-thin specifications for EV batteries.
• Nippon Denkai: Japanese manufacturer of electrodeposited copper foil for lithium-ion batteries, with production capacity in Japan and the US. Directly competes with SK Nexilis in supplying battery anode current collectors to global cell makers.
• Nuode New Materials: One of the largest Chinese producers of electrolytic copper foil for lithium-ion batteries, with significant domestic and export volumes. Competes directly with SK Nexilis in battery copper foil across EV and ESS applications.
• Furukawa Electric: Japanese manufacturer of electrolytic copper foil for lithium-ion battery anodes, with global production footprint. Directly comparable to SK Nexilis as a long-established copper foil supplier to major battery OEMs in EV and ESS.
• Lingbao Wason Copper Foil: China-based copper foil producer rapidly scaling battery-grade foil capacity for lithium-ion batteries. Direct competitor to SK Nexilis in the global copper foil market, particularly pressuring pricing in EV battery anode foil.
• Mitsui Mining & Smelting: Major Japanese producer of battery-grade electrolytic copper foil under the 'MLS' brand, supplying global cell makers. Competes head-to-head with SK Nexilis on ultra-thin foil specifications and serves overlapping Tier-1 battery customers.
• JX Nippon Mining & Metals: Japanese non-ferrous metals producer with a battery copper foil business supplying lithium-ion battery manufacturers. Comparable to SK Nexilis as a vertically integrated copper materials supplier targeting the same EV and ESS end markets.
• Sumitomo Metal Mining: Japanese non-ferrous metals and battery materials supplier with copper foil and cathode active material offerings. Competes with SK Nexilis in the broader battery materials value chain serving global EV cell makers.

Broad incumbents

• SKC Co., Ltd. Parent company of SK Nexilis and a broader specialty materials platform with interests across copper foil, battery materials and substrates. Relevant as both the controlling shareholder and a strategic incumbent that shapes SK Nexilis's capital allocation and battery ecosystem positioning.

Emerging players

• Chang Chun Petrochemical: Taiwan-based chemical and electronic materials producer with copper foil offerings serving electronics and battery applications. Emerging competitor in battery copper foil, partially overlapping with SK Nexilis's specialty foil portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/c/SKCtown/featured
• Facebookfacebook.com/kcftechnologies
• Instagraminstagram.com/kcft_2023
• LinkedInlinkedin.com/company/sk-nexilis-poland

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about SK NEXILIS