What JEIO does

JEIO Co., Ltd. (주식회사 제이오) is a South Korea-based advanced materials company operating two divisions from its Incheon headquarters and Ansan manufacturing base. The Battery Materials division manufactures carbon nanotube (CNT) conductive additives under the JENOTUBE brand — JENOTUBE 10B (10nm MWCNT for cathodes), JENOTUBE 6A (3-5 wall TWCNT for anodes), and JENOTUBE 3A (SWCNT for next-generation batteries) — alongside JENODM-series LFP dispersants and JENOTM graphene-ceramic hybrid thermal filler. The Plant division delivers EPC (Engineering, Procurement, Construction & Commissioning) services for chemical, secondary battery, semiconductor, environmental, and bio-industry facilities, supported by proprietary process equipment (JCM coating machine, JMG micro granulator, JUM jet mill).

JEIO generates revenue through three streams: sale of CNT and LFP dispersant products to battery cell manufacturers and EV OEMs (hardware sales, with JENOTUBE volume tied to battery production demand); project-based Plant EPC revenue recognized over construction duration (professional services, with over 1,000 projects completed since 1994); and sale of JCM/JMG/JUM advanced equipment to advanced-materials producers. Pricing is quote-based and negotiated directly with enterprise customers, with no public pricing disclosed; sales are conducted through direct B2B engagement, supported by a U.S. subsidiary established in May 2025 for North American expansion. Reported FY2024 revenue was KRW 82.9 billion against KRW 114.5 billion in 2023, with the 2024 figure reflecting a KRW 8.9 billion net loss versus KRW 17.4 billion profit in 2023.

The company was founded in 1994 by CEO D.J. Kang as a plant engineering firm, pivoted into CNT R&D in 2003, achieved Korea-first mass production of MWCNT in 2006 and TWCNT in 2014, listed on KOSDAQ in February 2023, and completed its 1,000-ton/year Ansan #2 CNT facility in May 2024. Named customers include Samsung SDI, EcoPro CNG/BM, Lotte Chemical, Hanwha Chemical, Posco, SK EN, Hyundai Motor, and Fermi Lab; strategic partnerships span Hyundai Motor (CNT fiber co-development), an unnamed UK company (graphene commercialization, February 2026), Inha University (pellicle technology, December 2024), and Fermi Lab (ultra-high voltage cables).

Name

JEIO

Legal name

주식회사 제이오

Website

https://jeio.co.kr

Company type

Public

Founded year

1994

Operating status

Operating

Headcount range

51–100 employees

Short description

JEIO is a South Korea-based advanced materials company that manufactures carbon nanotube battery materials (JENOTUBE), LFP dispersants (JENODM), thermal fillers (JENOTM), and provides Plant EPC services to global battery, EV, petrochemical, and semiconductor manufacturers.

Ownership category

akta.pro rank

Headquarters

HQ city

Incheon

HQ country

South Korea

HQ region

Asia

Offices6 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Secondary Battery Materials (CNT): Sale of proprietary carbon nanotube products (JENOTUBE 10B, 6A, 3A) and LFP dispersant products (JENODM series) to global secondary battery manufacturers and EV OEMs. Revenue is product-based, with volume tied to battery production demand. JEIO has publicly disclosed financial statements showing 2024 revenue of 82.9 billion KRW and 2023 revenue of 114.5 billion KRW (described in press as 'all-time high performance').
2. Plant EPC Services: Comprehensive EPC (Engineering, Procurement, Construction & Commissioning) services for advanced materials production plants across secondary batteries, semiconductors, eco-friendly energy, and fine/petrochemical sectors. JEIO has completed over 1,000 plant projects since 1994. Revenue recognized over project duration as construction progresses.
3. Advanced Equipment Manufacturing & Sales: Sale of proprietary process equipment including JCM coating machines, JMG micro granulators, and JUM jet mills to battery material manufacturers and other advanced materials producers. Equipment is sold directly to enterprise customers for integration into their production processes.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

JEIO develops and manufactures carbon nanotube (CNT) products under the JENOTUBE brand (multi-walled, thin-walled, and single-walled CNT for battery cathodes, anodes, and next-generation batteries) and LFP dispersants under the JENODM brand for lithium iron phosphate battery slurry processing. The company also delivers plant EPC (engineering, procurement, construction) services and advanced materials processing equipment (JCM, JMG, JUM) for battery material and chemical industry customers.

Product overview

JEIO operates two main business divisions offering distinct product lines. The Battery Materials Division produces carbon nanotube (CNT) conductive additives under the JENOTUBE brand, including JENOTUBE 10B (MWCNT for cathodes), JENOTUBE 6A (TWCNT for anodes), and JENOTUBE 3A (SWCNT for next-generation batteries). The division also offers JENODM Series dispersants (JENODM-2060, JENODM-3010, JENODM-L01) for LFP battery manufacturing. The Plant Division provides EPC engineering services and advanced equipment including JCM (coating machine), JMG (micro granulator), and JUM (jet mill) for battery material production. Additionally, JEIO produces JENOTM graphene-ceramic hybrid filler for thermal management applications.

Differentiator

Problem solved

Functional benefit

Brands

• JENOTUBE: Carbon nanotube product brand. Includes JENOTUBE 10B (cathode material, 10nm diameter), JENOTUBE 6A (anode material, 6nm diameter), and JENOTUBE 3A (single-wall CNT, 3nm diameter).
• JENODM
• JCM
• JMG
• JUM
• JENOTM

Products and services

• JENOTUBE 10B Multi-walled carbon nanotube (MWCNT) for secondary battery cathode material conductive additive, with average diameter of 10nm and length of 100-200um in bundle form. Does not contain metals such as Fe, Ni, Cr, Cu, Zn that may pose explosion risks in batteries.
• JENOTUBE 6A Thin-walled carbon nanotube (TWCNT) with 3-5 walls and 4-6nm diameter, produced exclusively by JEIO for anode material applications. Offers properties similar to SWCNT at more economical pricing; JEIO claims to be the only company in Korea mass-producing TWCNT-equivalent products at scale.
• JENOTUBE 3A Single-walled carbon nanotube (SWCNT) produced using JEIO's proprietary technology. Recognized as key material for next-generation batteries as it helps mitigate silicon anode volume expansion. Also applicable in semiconductors, aerospace, and display technologies.
• JENODM-2060 Hyper-dispersant for LFP battery cathode slurry designed to solve high viscosity and low solid content limitations of conventional LFP slurries. Enables high solid content above 60% through unique anchoring group and steric hindrance mechanism.
• JENODM-3010 Advanced anti-cracking agent for LFP electrodes that relieves shrinkage stress during drying and imparts flexibility. Prevents crack and curling phenomena when coating thick electrodes for improved energy density.
• JENODM-L01 LFP precursor dispersant and carbon coating agent for initial stages of LFP cathode material manufacturing. Maximizes dispersibility of precursor and carbon source during synthesis and carbon coating processes.
• JCM (JEIO Coating Machine) Ultra-precise mixing, coating, and modification equipment for secondary battery materials and raw particles. Features patented suction-type impeller for uniform processing regardless of particle size, delivering high-speed energy up to 100 m/s while minimizing physical damage.
• JMG (JEIO Micro Granulator) Specialized system for micro-scale assembly and spheroidization of fine powder particles. Uses patented suction-type impeller with strong compressive force and controlled shear motion to produce uniform morphology and high density secondary battery materials such as silicon anode (SiC) and natural graphite anode materials.
• JUM (JEIO Universal Jet Mill) High-efficiency grinding system capable of simultaneous coarse and fine grinding. Features rotor that fluidizes raw materials, reducing high-pressure gas consumption by over 50%. Includes inverter control for precise particle size adjustment and horizontal configuration for easy maintenance.
• JENOTM (Graphene-Ceramic Hybrid Filler) Next-generation thermal management composite material achieving electrical insulation and high thermal conductivity simultaneously through proprietary partial reduction process. Requires only 10-20 wt% filler content versus 60-70 wt% for conventional ceramic fillers; targets EV ultra-fast charging cables and high-heat electronic component housings.
• Plant EPC Services Comprehensive EPC (Engineering, Procurement, Construction & Commissioning) solutions for chemical, secondary battery, electronic materials, environmental/energy, and bio industries, providing process simulation and basic design capabilities for pilot-to-small-to-medium production plants.

Quantifiable outcome

• CNT production capacity of 1,000 tons/year as of 2024 (Ansan #2 factory completed May 2024)
• +3 more outcomes

Named customers14 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

Five partnerships are on record, tiered minor and core.

• Fermi National Accelerator Laboratory (Fermi Lab)minorStrategic or Co-development PartnerJEIO is developing CNT fiber technology for ultra-high voltage cable applications in cooperation with Fermi Lab, indicating a technical collaboration for advanced applications of JEIO's carbon nanotube fiber products.
• H Motors (Hyundai Motor Group)coreStrategic or Co-development PartnerJoint technology development for CNT fiber application in motor wire and automotive harness cables. Hyundai Motor Group is also a major potential customer for JEIO's battery materials as an EV OEM.
• Inha UniversityminorStrategic or Co-development PartnerJEIO signed a technology transfer agreement with Inha University in December 2024 to enhance the completeness of high-value-added pellicle technology for semiconductor applications.
• Unnamed UK Global Company (Graphene Commercialization)coreStrategic or Co-development PartnerJEIO announced in February 2026 a graphene commercialization partnership with a UK-based global company, targeting next-generation battery and aerospace applications. This represents JEIO's expansion beyond CNT into broader nanomaterials.
• WAB AG (Switzerland)minorChannel Partner/ Reseller/ DistributorJEIO signed an official agent contract with Swiss company WAB AG in 2009, appointing WAB as an international distribution agent for JEIO's products.

Scale indicators9 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Cnano Technology (Jiangsu Cnano): China's largest CNT producer (SZSE: 300688), supplying MWCNT and SWCNT conductive additives to global battery makers. Directly comparable product portfolio and customer overlap (battery cell manufacturers), with significantly larger scale than JEIO.
• Cabot Corporation: U.S.-listed global specialty chemicals company (NYSE: CBT) producing carbon blacks, fumed silica, and LITX carbon nanotubes for battery conductive additives. Overlaps with JEIO's CNT conductive additive business and battery materials customer base.
• OCSiAl: Luxembourg-headquartered global leader in single-walled carbon nanotubes (TUBALL), competing directly with JEIO's JENOTUBE 3A SWCNT. Closest direct competitor in the SWCNT segment for next-gen batteries.
• Arkema SA: French specialty chemicals major (EPA: AKE) producing CNT under the Graphistrength brand for batteries and composites. Comparable in serving global battery/EV customers with CNT conductive additives and broader specialty materials.
• Resonac Holdings (formerly Showa Denko): Japanese chemicals company producing VGCF (vapor-grown carbon fiber) and CNT materials for lithium-ion battery anodes. Long-standing CNT producer with global battery customer base; comparable technology positioning.
• Nanocyl SA: Belgian MWCNT and SWCNT producer serving battery, automotive, and electronics applications. Smaller European-headquartered peer with overlapping CNT product portfolio and end markets.

Broad incumbents

• LG Chem: Korea's largest chemicals and battery materials company (KRX: 051910), producing cathode materials, CNT additives, and broader EV battery materials portfolio. A potential in-house competitor to JEIO as a Korean conglomerate with internal CNT supply capability.
• POSCO Future M: Korean battery materials leader (KRX: 003670) producing cathode active materials, anode materials, and precursors. Serves overlapping battery customers (Samsung SDI, LG Energy Solution, SK On); broad incumbent in adjacent battery materials space.
• EcoPro BM: Korean high-nickel cathode materials leader (KRX: 247540) supplying Samsung SDI, SK On, and others. Existing JEIO customer (EPC services) and a key Korean battery materials peer expanding capacity for next-gen chemistries.

Emerging players

• Kumho Petrochemical: Korean specialty chemicals producer (KRX: 011780) with CNT and conductive carbon black businesses. Adjacent Korean peer in the conductive additive space, though with a different product mix and customer orientation.

Market position

Strengths1 record

Weaknesses4 records

Competitive moat5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/jeio

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 JEIO