ILJIN

What ILJIN does

ILJIN is a privately-held South Korean industrial conglomerate founded in 1968 by Chairman Huh, Chin Kyu, headquartered in Seoul (Mapo-gu). The group operates 13+ wholly-owned subsidiaries across five core segments: electrical infrastructure (ILJIN Electric — heavy electric machinery, EHV cables, transformers, and turnkey EPC projects); materials (ILJIN Diamond — industrial synthetic diamonds, PCD/PCBN tools, one of the top 3 globally; ILJIN Materials — electrodeposited copper foil for PCBs and battery current collectors; ILJIN Display sapphire — sapphire ingots and wafers for LEDs); parts (ILJIN Display touch — capacitive touch screen panels; ILJIN Steel — seamless steel pipes and precision tubes; ILJIN Hysolus/Composite — CNG and hydrogen vehicle composite fuel tanks); medical, broadcasting and IT (ALPINION Medical Systems — ultrasound diagnostics and HIFU therapeutic systems including Korea's first clinical HIFU; JTV regional broadcasting; ILJIN C&S IT services); and construction/lighting (LumiRich LED, ILJIN UNISCO curtain walls, ILJIN E&C). The company serves B2B enterprise customers in automotive, aerospace, semiconductor, energy, and medical verticals through direct sales with global infrastructure across 9 countries (South Korea, Japan, China, Vietnam, Germany, France, USA).

Revenue is generated primarily through hardware sales of parts and materials, supplemented by professional services revenue from ILJIN Electric's turnkey power transmission EPC projects. The company reports that over 90% of products are developed independently across 7-8 dedicated research centers staffed by 100+ PhD/Master's researchers. Go-to-market is sales-led with direct B2B relationships, participation in international trade shows (Hanover, Tube & Wire Düsseldorf, IEEE, KES), and IR communications. Historical group revenue reached 2.5 trillion KRW in 2013, growing at a 14% CAGR from 2005, with high-tech IT materials increasing from 17% to 41% of the revenue mix. Strategic emphasis is on localization of previously imported industrial technologies, capital-intensive R&D (300 billion KRW over 8 years for seamless pipes, 100 billion KRW over 5 years for single LCD panels), and vertical integration from raw materials through finished products.

Name

ILJIN

Legal name

ILJIN Group

Website

https://iljin.co.kr

Company type

Private

Founded year

1968

Operating status

Operating

Headcount range

11–50 employees

Short description

ILJIN is a privately-held South Korean industrial conglomerate founded in 1968 that manufactures and sells parts and materials—including electrical infrastructure, industrial diamonds, copper foil, touch panels, seamless steel pipes, ultrasound systems, and LED lighting—to global B2B customers in automotive, aerospace, semiconductor, energy, and medical sectors.

Ownership category

akta.pro rank

Headquarters

HQ city

Mapo

HQ country

South Korea

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Parts and Materials Manufacturing: Manufacturing and sales of industrial parts and materials including electrical infrastructure components, industrial diamonds, elecfoil, display components, steel products, and medical devices. Revenue generated through direct sales to industrial customers in automotive, aerospace, semiconductor, electronics, and energy sectors.
2. Electric EPC Projects: Power transmission substation and power station technology and services provided on turnkey basis through ILJIN Electric subsidiary.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels3 records

Core offering

ILJIN is a Korean industrial conglomerate that manufactures and sells industrial parts and materials across multiple sectors. Its subsidiaries produce electrical infrastructure equipment (high-voltage cables, transformers, GIS switchgears), industrial synthetic diamonds and PCD/PCBN superabrasive tools, electrodeposited copper foil (elecfoil) for PCBs and batteries, seamless and precision steel tubes, sapphire wafers and touch screen panels for displays, composite fuel tanks for CNG/hydrogen vehicles, ultrasound diagnostic and HIFU therapeutic medical systems, and LED lighting products.

Product overview

ILJIN is a diversified Korean industrial conglomerate operating as a parts/materials specialized company with a portfolio of distinct business units. The company offers: electrical infrastructure products (ILJIN Electric - EHV cables, transformers, GIS); materials including industrial diamonds (ILJIN Diamond - synthetic diamonds, PCD/PCBN tools) and elecfoil/copper foil for PCBs and batteries; display components (ILJIN Display - touch screen panels, sapphire ingots and wafers for LEDs); precision steel products (ILJIN Steel - seamless pipes, special tubes); composite materials (ILJIN Hysolus - fuel tanks for CNG/hydrogen vehicles); medical devices (ALPINION - ultrasound diagnostic equipment and HIFU therapeutic systems); LED lighting (LumiRich); IT solutions (ILJIN C&S); and construction services (ILJIN UNISCO, ILJIN E&C). The company also operates broadcasting (JTV) and semiconductor businesses. With over 90% of products developed independently, ILJIN positions itself as a total solution provider spanning from basic materials and parts to finished products across industrial, electronics, medical, and construction sectors.

Differentiator

Problem solved

Functional benefit

Brands

• ALPINION MEDICAL SYSTEMS: Ultrasound diagnostic and therapeutic medical device brand specializing in HIFU (High Intensity Focused Ultrasound) technology for tumor treatment
• LumiRich
• JTV

Products and services

• Industrial Synthetic Diamonds and PCD/PCBN Superabrasive Tools Synthetic diamonds produced using high-temperature (1,500°C) and high-pressure (50,000 atmospheres) technology, plus PCD (polycrystalline diamond), PCBN (cubic boron nitride), and CBN products. Used for precision grinding in automotive parts, semiconductor equipment, aerospace components (CFRP, aluminum, titanium), and medical/surgical applications. Sold globally to industrial manufacturers; ILJIN Diamond is one of the top 3 industrial diamond manufacturers globally.
• Elecfoil (Electrodeposited Copper Foil) Thin copper plates produced through electrolysis for printed circuit boards (PCBs) and rechargeable battery negative current collectors. Thickness ranges from 18-70μm, with specialized production as thin as 3-5μm for miniaturization. Selected as one of Korea's top 100 technologies of the 20th century. Sold to electronics manufacturers and battery producers.
• Seamless Steel Pipes and Precision Steel Tubes Jointless steel pipes produced by heating cylinder billets and drilling holes, used in automobiles, heavy machinery, electricity production, energy plants, and shipbuilding. Includes precision steel tubes for automobiles, hydraulic cylinder tubes for heavy machinery, special-shaped steel tubes for L/M systems, and ultra-precision stainless tubes for semiconductors. First in Korea to establish seamless tube manufacturing capability.
• Capacitive Touch Screen Panels Capacitive method touch screen sensors and modules for smartphones and tablet PCs. Achieved full process internalization from ITO sensors to module production. Sold to mobile device OEMs and electronics manufacturers.
• Sapphire Ingots and Wafers for LED Sapphire ingots and wafers produced by growing aluminum oxide (Al2O3) in vacuum over 2 weeks, used as LED production base material. Completed vertical integration from sapphire ingots to wafers for the LED industry. Sold to LED manufacturers globally.
• High Voltage Electrical Infrastructure Equipment Comprehensive heavy electric machinery including high voltage electric cables, Cu wire, aluminum alloys, extra-high voltage transformers, GIS (Gas Insulated Switchgear) switchgears, and electrical devices for power distribution. Sold to utilities, power infrastructure operators, and electrical contractors globally.
• Electric EPC Turnkey Projects Power transmission substation and power station technology and services provided on turnkey basis (Engineering, Procurement, Construction). Targets international utilities and infrastructure projects globally. Includes ILJIN Electric subsidiary providing complete power infrastructure deployment.
• Ultrasound Diagnostic Systems (ALPINION E-CUBE series) Diagnostic ultrasound imaging equipment for medical facilities. Includes research ultrasound and transducer technology development and manufacturing. Sold to hospitals, clinics, and medical research institutions globally.
• HIFU (High Intensity Focused Ultrasound) Therapeutic System - ALPIUS 900 Non-invasive tumor treatment system using high-intensity ultrasonic waves to target pathogenic tissues. Korea's first clinical HIFU system, used for treatments including uterine fibroids, breast cancer, and pancreatic cancer. Sold to hospitals and oncology centers. ILJIN is the only HIFU technology holder in Korea.
• Composite Fuel Tanks for CNG and Hydrogen Vehicles Composite fuel tanks for Compressed Natural Gas (CNG) vehicles and hydrogen fuel cell vehicles. Technology-intensive high value-added products using advanced composite materials. Sold to automotive OEMs and clean energy vehicle manufacturers.
• LED Lighting Products (LumiRich) LED lighting and display products including industrial, home, and specialized lighting solutions. Sold through commercial and consumer channels for eco-friendly lighting applications.

Quantifiable outcome

• 14% compound annual growth rate over 8 years (2005-2013)
• +3 more outcomes

Named customers5 records

Segments6 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

Seven partnerships are on record, tiered minor and core.

• KISTminorStrategic or Co-development Partner · 1 January 2016Technology transfer agreement signed in February 2016 between ALPINION Medical Systems and KIST for 'Early Diagnosis of Alzheimer Disease' technology.
• POSCO Specialty SteelminorStrategic or Co-development Partner · 1 January 2011Strategic business partnership (MOA) signed between ILJIN Steel and POSCO Specialty Steel in June 2011 for carbon alloyed seamless steel pipe business.
• VIMED Systems CorporationcoreStrategic or Co-development Partner · 1 January 2008Acquired VIMED Systems Corporation in May 2008 to enter the medical ultrasound equipment business. Renamed to ALPINION Medical Systems Corporation in August 2010.
• HANAKA-ILJIN Joint VentureminorStrategic or Co-development Partner · 1 January 2007Joint venture established in Vietnam in January 2007 for expanded operations in Southeast Asian market.
• KIST (Korea Institute of Science and Technology)coreStrategic or Co-development Partner · 1 January 1985Industry-university cooperation for development of industrial synthetic diamonds beginning in 1985. Joint research eventually led to successful development of industrial diamond production technology in June 1987.
• Seoul National UniversitycoreStrategic or Co-development Partner · 1 January 1978Cooperation with Seoul National University for joint research and development. ILJIN began research cooperation with the university in 1978 for copper foil development and later established the Research Institute of Advanced Materials at Seoul National University in 1990.
• KIST (Korea Institute of Science and Technology)coreStrategic or Co-development Partner · 1 January 1974Joint development of copper-clad steel wires in cooperation with KIST starting April 1974. Both parties agreed to equally invest 30 million won each for development.

Scale indicators8 records

Recent moves12 records

Expansion highlights6 records

Direct peers

• Element Six: De Beers-owned global industrial diamond and superabrasives producer. Direct substitute for ILJIN Diamond's synthetic diamond, PCD/PCBN, and CBN tools in precision grinding, automotive tooling, and semiconductor processing.
• LS Electric: Korean manufacturer of power transmission and distribution equipment (transformers, switchgear, GIS) — directly comparable to ILJIN Electric's heavy-electrical machinery and EPC turnkey power substation business.
• Hexagon Composites: Norwegian manufacturer of composite pressure vessels for CNG, hydrogen, and gas transportation. Direct peer to ILJIN Hysolus' composite fuel tank business for hydrogen fuel cell and CNG vehicles.
• POSCO Holdings: Korean diversified steel and industrial materials conglomerate. Directly comparable in scale and strategic focus (steel, materials, batteries, industrial technology), with similar localization heritage and Korean heavy-industry DNA.
• Mitsui Mining & Smelting: Japanese manufacturer of advanced copper foil and electronic materials. Closely comparable to ILJIN Materials in the global electrodeposited copper foil supply chain serving PCB, EV battery, and semiconductor customers.
• Furukawa Electric: Japanese specialist in electrodeposited copper foil and electrical/electronic materials. Directly comparable to ILJIN Materials' elecfoil for PCBs and battery anodes, with overlapping end-markets in semiconductors and EV batteries.
• Sumitomo Electric Industries: Japanese diversified industrial materials and electrical-wire conglomerate. Comparable to ILJIN Group across copper-clad steel wires, specialty tubes, compound semiconductors, and electrical infrastructure materials.
• Kobe Steel: Japanese steelmaker and industrial materials supplier with strong presence in specialty steel tubes and welding. Comparable to ILJIN Steel's seamless steel pipes and ILJIN Materials' copper foil products.
• Sandvik: Swedish industrial tooling and materials group whose Hard Materials division (Hyperion, Diamond Innovations) directly competes with ILJIN Diamond in PCD/PCBN tooling for auto, aerospace, and oil & gas.

Broad incumbents

• Doosan Group: Korean industrial conglomerate with electrification, power, and materials businesses. Broadly comparable in scale and Korean heavy-industry DNA to ILJIN Group's diversified industrial portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries13 records

Funding overview

Funding rounds

Investors

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

M&A

Investments1 record

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

Frequently asked questions about ILJIN