SK Materials

What SK Materials does

SK Materials (rebranded to SK ecoplant materials in December 2025) is a South Korean specialty materials producer serving the global semiconductor and display manufacturing value chains. The company supplies high-purity etching gases (including CH3F, C4F6, CH2F2, HBr, NF3, CF4, and WF6), organometallic precursors (Zr, Si, Ti, Hf-based) for atomic layer deposition and chemical vapor deposition, photoresist and lithography materials (PR, BARC, hardmask), wet chemicals, and OLED display materials (Boron-based blue dopant, HTL/ETL common layers) used in DRAM, 3D NAND, advanced logic, and OLED display manufacturing.

The company holds approximately 7% market share in the global semiconductor precursor market (third-largest behind Merck at 33% and Air Liquide at 29%) and is one of three suppliers — alongside Linde and Air Liquide — controlling 70–80% of high-purity electronic-grade CF4 supply. Core proprietary assets include Boron family blue dopant IP held through the SK Materials JNC joint venture with Japan's JNC Corporation, sole Korean production of monofluoromethane (CH3F) through the SK Resonac joint venture with Japan's Resonac, and Zr/Si/Ti/Hf precursor technology via the SK Trichem joint venture with Japan's Tri Chemical Laboratories. Manufacturing and R&D assets span Yeongju (head office and factory), Pyeongtaek, Dongtan, Seoul, and Ichihara, Japan.

SK Materials operates a B2B direct-sales model selling to global semiconductor foundries (Samsung Electronics, SK hynix, TSMC, and other NAND/DRAM manufacturers) and OLED display producers under quote-based/contract pricing arrangements. The company reports 23% compound annual growth over five years — more than 4x the 5.4% growth rate of the broader semiconductor industry — with group enterprise value expanding from 1.2 trillion KRW in 2015 to 4.2 trillion KRW in 2021. The company is a wholly-owned subsidiary of SK Inc. within the SK Group conglomerate; firmographic data also references a KOSDAQ listing under ticker 036490.

Name

SK Materials

Legal name

SK주식회사 머티리얼즈

Website

https://sk-materials.com

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

SK Materials (SK ecoplant materials) is a South Korean specialty materials producer serving global semiconductor foundries and OLED display manufacturers with high-purity etching gases, organometallic precursors, photoresist, and Boron-based blue dopant materials.

Ownership category

akta.pro rank

Product category

Semiconductor Materials

NAICS

Industrial Gas Manufacturing (32512), Other Basic Inorganic Chemical Manufacturing (32518), Basic Chemical Manufacturing (3251)

SIC

Industrial Organic Chemicals (2860), Industrial Inorganic Chemicals (2810), Chemicals & Allied Products (2800)

akta.pro primary industry

Electronics & Semiconductor High-Purity Gases (IMAEACAG)

akta.pro secondary industries

Thin-Film Deposition Materials (PVD/CVD/ALD Targets & Precursors) (HDAHAGAH), Process Gases & Gas Delivery Consumables (Specialty/Bulk/UHP) (HDAHAGAL), Display & Optoelectronics Chemicals (OLED/LCD materials, polarizer chemicals) (IMAEAKAN)

Keywords

• Semiconductor materials
• Specialty gases
• Etching gases
• Precursor materials
• OLED display materials

Headquarters

HQ city

Seoul

HQ country

South Korea

HQ region

Asia

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Precursor Materials for Semiconductors: SK Materials is the third-largest player (~7% market share) in the global precursor for semiconductor market, supplying high-k precursors (US$820M in 2022) and metal precursors (US$660M in 2022) to semiconductor foundries for atomic layer deposition (ALD) and chemical vapor deposition (CVD) processes in DRAM and 3D NAND manufacturing.
2. High-Purity Specialty and Deposition Materials: SK Materials supplies high-purity specialty gases (NF3, CF4, etching gases) and deposition materials for advanced chip fabrication. The market is highly concentrated with top players controlling significant shares in electronic-grade supply.
3. Tungsten Hexafluoride (WF6): SK Materials is identified as a key supplier of tungsten hexafluoride from Japan, a critical material used in CVD and PVD processes for advanced chip manufacturing, with Korean import prices rising 151% in the current year due to constrained supply.
4. OLED Display Materials (Blue Dopant, Common Layers): SK Materials JNC supplies OLED materials including Boron-based blue dopants and common layer materials (HTL, ETL) to global OLED display manufacturers. The company also develops advanced blue host materials.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

SK Materials manufactures and supplies high-purity specialty gases (etching gases such as CH3F, C4F6, CH2F2, HBr, CF4), organometallic precursors (Zr, Si, Ti, Hf-based for ALD/CVD deposition), photo materials (photoresist, BARC, SOC hardmask), wet chemicals, and OLED materials (Boron-based blue dopants, HTL/ETL common layers) to global semiconductor foundries and OLED display manufacturers.

Product overview

SK ecoplant materials is a global top-tier material technology company providing comprehensive semiconductor materials solutions. The portfolio includes etching gases (CH3F, C4F6, CH2F2, CF4, HBr), precursors (Zr, Si, Ti, Hf-based for ALD/CVD processes), photo materials (PR, BARC, SOC for lithography), wet chemicals, and OLED materials (blue dopants, common layers). The company operates through subsidiaries: SK resonac (etching gases), SK trichem (precursors, Korea's leading specialist), SK materials performance (photo materials), and SK materials JNC (OLED materials with JNC partnership). SK Materials holds approximately 7% of the global semiconductor precursor market and is a major supplier of electronic-grade specialty gases including nitrogen trifluoride (NF3) and carbon tetrafluoride.

Differentiator

Problem solved

Functional benefit

Products and services

• Etching Gases High-purity specialty etching gases for semiconductor fabrication including Monofluoromethane (CH3F), Hexafluorobutadiene (C4F6), Difluoromethane (CH2F2), Hydrogen Bromide (HBr), and other fluorinated compounds used to form fine circuit patterns in DRAM and 3D NAND manufacturing.
• Precursors Organometallic compound precursors (Zr, Si, Ti, Hf-based) used for thin film deposition in semiconductor manufacturing via ALD/CVD processes for DRAM and 3D-NAND production.
• High Performance Wet Chemicals High selectivity phosphoric acid and other wet chemical solutions for selective etching and cleaning of various thin films in semiconductor manufacturing processes.
• Photo Resist (PR) Light-sensitive polymer materials essential for lithography processes in semiconductor manufacturing, including I-line, KrF, ArF Immersion, and EUV photoresist products.
• BARC (Bottom Anti-Reflection Coating) Anti-reflection coating materials that suppress light scattering and reflection from substrates during semiconductor exposure processes, minimizing pattern profile loss.
• SOC (Spin-on-Carbon Hardmask) Carbon-based hardmask materials with strong etching resistance and flattening characteristics used in advanced semiconductor patterning, ranging from 400 Å to 3 μm thickness.
• Blue Dopant (OLED Materials) Boron-based blue dopant materials for OLED display manufacturing, offering high efficiency and long lifespan performance for next-generation display applications.
• Integrated Services (Total Solution) Gas & IT Materials Total Solution Provider offering integrated production, sales, and operational services to semiconductor and display customers.

Quantifiable outcome

• SK Materials group achieved 23% CAGR growth vs. 5.4% semiconductor industry growth — more than 4x the forward industry rate over 5 years
• +2 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered core.

• Idemitsu Kosan ( 이데미츠 코산 주식회사)coreStrategic or Co-development Partner · 21 June 2024SK Materials JNC signed a Memorandum of Understanding (MOU) with Idemitsu Kosan for joint development of OLED emissive layer materials, specifically boron-based blue dopant and blue host materials. The partnership leverages both companies' technologies and patents to co-develop new materials and conduct material evaluation, with the MOU signed at Idemitsu Kosan's Tokyo headquarters. Idemitsu Kosan, founded in 1911, is a leading energy and materials company supplying OLED materials to major global smartphone and TV manufacturers and advancing combination technology R&D to maximize OLED material performance.
• Resonac ( 쇼와덴코 / Resonac Corporation)coreStrategic or Co-development PartnerSK ecoplant materials and Japan's Resonac Corporation established the joint venture SK Resonac to develop and produce high-purity etching gases for semiconductor manufacturing, achieving localization of high-difficulty etching gas production in Korea. SK Resonac operates Korea's only synthesis process-based CH3F and HBr production facilities, and continues to develop various etching gases based on accumulated technologies.
• Tri Chemical Laboratories Inc. (TCLC)coreStrategic or Co-development PartnerSK ecoplant materials partnered with Japan's Tri Chemical Laboratories (TCLC) to establish SK Trichem as a domestic leader in semiconductor precursor materials. SK Trichem produces Zr-precursor, Si-precursor, Ti-precursor, and Hf-precursor for DRAM and 3D NAND manufacturing, leveraging TCLC's long experience in precursor technology.
• JNC Corporation (日本JNC社)coreStrategic or Co-development PartnerSK Materials and Japan's JNC Corporation established the joint venture SK Materials JNC, combining SK Materials' business development, production/quality management, and marketing capabilities with JNC's OLED material technology and core IP for Boron family Blue Dopant. JNC provides the Ichihara research institute for next-generation blue material and TADF material development.

Scale indicators5 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Entegris: Entegris is a leading US-based supplier of specialty materials, fluids, gases, and delivery systems for semiconductor manufacturing. Competes with SK Materials in advanced deposition precursors, photoresist ancillaries, and gas delivery, with deep TSMC/Intel/Samsung relationships.
• Resonac Corporation (formerly Showa Denko): Resonac is both a JV partner (SK Resonac) and a direct competitor in high-purity etching gases for semiconductors. It produces competing CH3F, C4F6, HBr, and CMP slurries, and competes with SK Materials for the same Korean and global fab customers.
• Air Liquide: Air Liquide holds ~29% global semiconductor precursor share and co-controls 70–80% of high-purity CF4 supply alongside Linde and SK Materials. Direct competitor in electronic specialty gases, UHP process gases, and precursors serving the same fab customer base.
• Linde plc: Linde is the other member of the top-3 CF4 oligopoly and a major supplier of electronic specialty gases and precursors globally. Overlaps with SK Materials across UHP process gases, precursors, and gas delivery consumables for semiconductor fabs.
• Shin-Etsu Chemical: Shin-Etsu is a major Japanese supplier of WF6, photoresists, and silicon wafer materials, and a competing exporter into Korean fabs. SK Materials is identified alongside Shin-Etsu as a key WF6 supplier, putting them in direct competition for advanced CVD/PVD tungsten deposition business.
• Merck KGaA (Electronics / Performance Materials): Merck Electronics is the global #1 player in semiconductor precursors (~33% share) and a major supplier of specialty gases, photoresists, and OLED materials. Directly competes with SK Materials in deposition precursors, lithography materials, and display chemicals across the same foundry and display customers.

Emerging players

• Tri Chemical Laboratories (TCLC): TCLC is SK Materials' JV partner (SK Trichem) for precursors and brings long-standing precursor technology expertise. It is a focused Japanese specialist in organometallic precursors, directly comparable to SK Trichem's product portfolio and partially competitive in precursor supply.
• JNC Corporation: JNC is SK Materials' JV partner in OLED materials (SK Materials JNC) and the source of its core Boron-family blue dopant IP. Operates the Ichihara R&D center and competes in adjacent OLED emitter chemistries, making it both a partner and a partial competitor in display materials.
• Idemitsu Kosan: Idemitsu is a leading OLED materials supplier and the 2024 MOU partner of SK Materials JNC for boron-based blue dopant and host development. A globally significant OLED emitter competitor whose materials are used by major smartphone and TV OLED manufacturers.

Broad incumbents

• Versum Materials / Merck Electronics integration: Versum Materials was acquired by Merck in 2019, expanding Merck's semiconductor materials portfolio into delivery systems and adjacent categories. The combined entity represents the broadest incumbent portfolio overlapping with SK Materials across precursors, gases, litho, and display.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCN0g1eLhiu9ps_YHQbNOxdQ

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries6 records

Funding overview

Funding rounds

Investors

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

M&A

Investments5 records

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

Frequently asked questions about SK Materials