What Kureha Extron does

Kureha Extron Co., Ltd. (クレハエクストロン株式会社) is a Japanese specialty plastics manufacturer and wholly-owned subsidiary of KUREHA CORPORATION, headquartered in Kasumigaura, Ibaraki Prefecture, with 104 employees (as of April 2026) and ¥85 million in stated capital. Founded in 1964 as Nihon Extron, the company underwent two consolidations within the Kureha Group — merging with Kurefine Co., Ltd. in 2014 (acquiring the Krefine® ESD business) and with Kureha Extech Co., Ltd. in 2019 — and relocated its headquarters and factory to Kasumigaura later that year.

The company's product platform spans three pillars: (1) Krefine® electrostatic discharge (ESD) control materials, including sheets, compounds, and precision machined/injection-molded parts with surface resistance controlled to ±1 order of magnitude in the 10^5–10^11 Ω range, using proprietary carbon materials patented across Japan, the US, Europe, China, and Southeast Asia; (2) a broad engineering plastics portfolio of 19+ base resins (PPS, PVDF, PEEK, PSU, PES, PPE, PBT, PEI, POM, PE, PP, ABS, PC/ABS, PA6, PA66, New-PFA, ETFE) plus glass-fiber-reinforced grades; and (3) high-performance films including KFC multi-layer PVDF/acrylic overlay film and a PVDF swelling adhesive tape for cylindrical lithium-ion battery cushioning.

Revenue is generated through direct sales and sales agents, with no public pricing disclosed and quotations determined per consultation based on material, complexity, and volume. The customer base spans semiconductor manufacturers (IC test sockets, wafer carriers, burn-in test sockets), automotive OEMs and Tier-1s (notably a co-development relationship with Toyota Auto Body for TABWD® wiring harness protectors), lithium-ion battery makers, infrastructure (PVDF piping), robotics, and 5G/telecommunications component makers. ISO 9001 and ISO 14001 certified, the company pursues a sales-led and event-driven go-to-market anchored on the High Performance Plastic Expo and ESD-themed webinars.

Name

Kureha Extron

Legal name

クレハエクストロン株式会社

Website

https://kureha-extron.co.jp

Company type

Private

Founded year

1964

Operating status

Operating

Headcount range

101–250 employees

Short description

Kureha Extron is a Japanese specialty plastics manufacturer and wholly-owned Kureha Group subsidiary producing ESD control materials, engineering plastic resins, and high-performance films for semiconductor, automotive, and lithium-ion battery manufacturers.

Ownership category

akta.pro rank

Product category

Engineering Plastics & Specialty Resins

NAICS

Plastics and Rubber Products Manufacturing (326), All Other Plastics Product Manufacturing (326199), Resin, Synthetic Rubber, and Artificial and Synthetic Fibers and Filaments Manufacturing (3252), Plastics Packaging Film and Sheet (including Laminated) Manufacturing (326112)

SIC

Plastic Material, Synth Resin/Rubber, Cellulos (No Glass) (2820), Unsupported Plastics Film & Sheet (3081), Adhesives & Sealants (2891), Electronic Components & Accessories (3670)

akta.pro primary industry

Conductive/ESD & EMI-Shielding Compounds (IMANABAH)

akta.pro secondary industries

Engineering Thermoplastic Compounds (PA/PBT/PC/POM/PPS/PEEK) (IMANABAB), Industrial & Protective Film Extrusion (Masking, Surface Protection, Barrier Films) (IMANACAD), Tapes, Labels & Pressure-Sensitive Adhesives (IMAEAGAJ)

Keywords

• ESD control materials
• Engineering plastic resins
• Custom plastic molding
• High-performance polymer films
• Precision plastic machining

Headquarters

HQ city

Kasumigaura

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. 合成樹脂及び合成樹脂加工製品の製造販売: 制電性树脂素材（クレファイン/Krefine®）、树脂素形材（板材・丸棒）、高機能フィルム（KFCフィルム、PVDF膨潤粘着テープ）、カスタムオーダー素材成形、各種加工品（射出成形・切削加工・異形押出）の製造販売。顧客は自動車・半導体・電子機器・インフラ・ロボット等行业の製造業。

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

Kureha Extron manufactures and sells Krefine® brand electrostatic discharge (ESD) control materials that precisely regulate surface electrical resistance in the 10^5–10^11 Ω range, alongside a broad portfolio of engineering plastic resins (PPS, PEEK, PVDF, PC, PSU, PES, PPE, PBT, PEI, POM, PE, PP, ABS, PA6, PA66, New-PFA, ETFE), high-performance films (KFC multi-layer PVDF film, PVDF swelling adhesive tape for lithium-ion batteries), and custom-molded/machined plastic components. Their products serve semiconductor, automotive CASE, electronics, lithium-ion battery, infrastructure, and industrial robotics manufacturers, with a vertically integrated custom manufacturing service spanning material formulation, trial production, evaluation, and mass production.

Product overview

Kureha Extron is a Kureha Group company specializing in engineered plastics and processing. The product portfolio consists of three core pillars: (1) Krefine/クレファイン ESD control materials for electrostatic discharge protection in semiconductor and electronics manufacturing, featuring proprietary carbon-based compounds with controlled surface resistance from 10^5 to 10^11 Ω, offered as sheet materials, compounds, and precision injection/machined parts; (2) Resin raw materials (semi-finished shapes) encompassing 19+ unfilled engineering plastics including PPS, PVDF, PEEK, PSU, PES, PPE, PBT, PEI, POM, PE, PP, ABS, PC/ABS, PA6, PA66, New-PFA, and ETFE, plus 7 glass fiber reinforced grades; and (3) High-performance films including KFC multi-layer PVDF/acrylic film for architectural and surface protection applications, and PVDF swelling adhesive tape for lithium-ion battery vibration dampening. Processing capabilities include custom profile extrusion, injection molding, and precision cutting/machining services. The company serves semiconductor, automotive, electronics, infrastructure, robotics, and entertainment industries.

Differentiator

Problem solved

Functional benefit

Brands

• Krefine® (クレファイン): ESD (Electro-Static Discharge) control materials with controlled surface resistance values in the static electricity diffusion range.
• KFCフィルム
• PVDF膨潤粘着テープ
• KUREDAX®

Products and services

• Krefine ESD Control Materials

Quantifiable outcome

• 表面抵抗値制御精度: ±1乗Ωの範囲に設定可能（10⁵～10¹¹Ω領域）
• +4 more outcomes

Named customers3 records

Segments6 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Toyota Auto Body Co., Ltd. (トヨタ車体株式会社)coreStrategic or Co-development Partnerクレハエクストロンとトヨタ車体がTABWD®（間伐材とPPのコンパウンド素材）について共同開発を実施。スギ間伐材とPP（ポリプチレン）をコンパウンドした軽量・高剛性・高耐熱でリサイクル可能な成形品を自動車用ワイヤーハーネスプロテクターやフォグランプブラケットに採用。
• Mitsubishi Gas Chemical Co., Ltd. (三菱ガス化学株式会社)minorOthers熱可塑性ポリイミド（TPI）「テプラル®」を原料とした成形品を開発・提供。三菱ガス化学の素材を使用した耐熱部品用途。
• EMS-Chemie Japan Co., Ltd. (エムスケミー・ジャパン株式会社)minorOthers透明ポリアミド「グリルアミド®TR」を使用した成形品を提供。眼鏡フレーム・医療機器・自動車用途向け。
• Zeon Corporation (日本ゼオン株式会社)minorOthers低吸水・低誘電率のCOP素材「ZEONEX®」を使用した成形品を提供。カメラ・携带终端・液晶プロジェクター用途向け。
• Mitsui Chemicals, Inc. (三井化学株式会社)minorOthers透明性・音響特性を持つPMP素材「TPX®」を使用した成形品を提供。剥離フィルム・超音波診断機・食品・理化学容器用途向け。

Scale indicators4 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Röchling Group: German plastics processor offering semi-finished products, machined parts, and compounds in engineering plastics. Comparable in processing services and high-performance resin product mix, serving semiconductor, automotive, and industrial customers.
• Polyplastics Co., Ltd. Japanese engineering plastics manufacturer (formerly Daicel/Celanese JV) specializing in POM, PPS, LCP, and PEEK compounds. Most directly comparable peer given similar focus on engineering thermoplastic compounds and custom molding for automotive and electronics.
• Toppan Engineering Co., Ltd. Japanese manufacturer of ESD control materials and cleanroom products for semiconductor and electronics manufacturing. Directly comparable peer in the Krefine® / ESD compound space serving IC test sockets and wafer carriers.
• Nitto Denko Corporation: Japanese specialty films and adhesive tapes manufacturer. Comparable in pressure-sensitive adhesive tapes (including LIB-related tape products) and multi-layer film technology overlapping with KFC Film and PVDF tape.
• Ensinger GmbH: German manufacturer of engineering plastics (PEEK, PPS, PVDF) in semi-finished forms, compounds, and machined parts. Comparable in custom extrusion, injection molding, and precision machining of high-performance resins for industrial applications.

Regional players

• Shin-Etsu Polymer Co., Ltd. Japanese manufacturer of specialty plastics, silicone products, and ESD materials. Overlaps in ESD-control compounds and engineering plastic sheets/parts for Japanese electronics and semiconductor customers.

Broad incumbents

• DuPont de Nemours, Inc. Global specialty chemicals leader offering engineering polymers (PPS, PEEK, PVDF) and ESD-control materials. Comparable in product categories but operates at vastly greater scale with broader portfolio.
• Mitsubishi Chemical Group: Large Japanese chemical conglomerate producing engineering plastics, films, and specialty materials. Overlaps in PPS, PEEK, PVDF, and high-performance films, but serves a much broader portfolio including commodity chemicals.
• Mitsui Chemicals, Inc. Japanese chemical manufacturer producing engineering plastics, specialty films (TPX®), and compounds. Kureha Extron is also a customer of Mitsui's TPX® resin for molded products, and Mitsui competes in adjacent specialty materials segments.
• Solvay S.A. Belgian specialty polymer producer with strong positions in PEEK, PPS, and PVDF. Overlaps in engineering plastics for semiconductor and automotive applications but is far larger and more diversified geographically.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Kureha Extron