Kotec

What Kotec does

Kotec Corporation is a privately held Japanese engineering plastics compounder founded in 1970 and headquartered in Sakai, Osaka. The company manufactures compounded resin grades across five polymer families — Polycarbonate (PC), Polyphenylene Sulfide (PPS), Polyetherimide (PEI), Polyetheretherketone (PEK/PEEK), and Perfluoroalkoxy alkanes (PFA) — with property enhancements including glass fiber and carbon fiber reinforcement, non-brominated/non-chlorinated flame retardancy, UV stability, mould release, electrical conductivity, luminescence, and post-consumer recycled (PCR) content. All compounding operations are conducted at the Kinokawa Plant in Wakayama Prefecture (established 1997), which operates 6 production lines on a 9,000 m² footprint equipped with cutting-edge testing equipment.

The business serves industrial manufacturers globally through a direct B2B sales motion, supplying compounded engineering plastics to customers in over 20 countries. Kotec's customer base is horizontal across industrial use cases requiring flame retardancy, UV stability, wear resistance, conductivity, or recycled content — no end-market verticals are named in public materials. Pricing is quote-based and not publicly disclosed; inquiries route through a website contact form covering technical support, samples, commercial, and regulatory matters, indicating a consultative sales approach typical of specialty materials. The company is independently owned with no disclosed parent, subsidiaries, funding rounds, or institutional investors.

Kotec's growth strategy in recent years has emphasized circular-economy positioning. The company obtained initial GRS (Global Recycled Standard) certification for PCR PC and PCR PBT materials in November 2024, renewed it for the 2025-2026 cycle, and secured Eco Leaf LCA and Carbon Footprint of Products (CFP) declarations from Sumpo covering recycled PC and recycled PPS grades. The company holds ISO 9001 and ISO 14001 certifications at the Kinokawa plant. Marketing is conducted through a bilingual (English/Chinese) corporate website and a LinkedIn presence; no app, API, or digital platform product is offered. The company does not disclose revenue, headcount, or ownership structure.

Name

Kotec

Legal name

Kotec Corporation

Website

https://kotec-corp.com

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

101–250 employees

Short description

Kotec Corporation is a privately held Japanese engineering plastics compounder founded in 1970, serving industrial manufacturers in 20+ countries with compounded Polycarbonate, PPS, PEI, PEEK, and PFA resin grades — including specialty and GRS-certified recycled variants — produced at its Kinokawa plant in Wakayama.

Ownership category

akta.pro rank

Product category

Engineering Plastics Compounding

NAICS

Custom Compounding of Purchased Resins (325991), Plastics Material and Resin Manufacturing (325211)

SIC

Plastic Materials, Synth Resins & Nonvulcan Elastomers (2821)

akta.pro primary industry

Engineering Plastics & Performance Resins (PC, PA, POM, PBT, PMMA) (IMAEADAI)

akta.pro secondary industry

Engineering & High-Performance Thermoplastics Resin Manufacturing (PA, POM, PC, PBT, PEEK, PPS) (IMANAAAB)

Keywords

• Engineering plastics compounding
• Polycarbonate resin compounds
• Recycled engineering plastics
• Flame retardant plastics
• Glass fiber reinforced polymers

Headquarters

HQ city

Sakai

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Engineering Plastics Sales: Kotec generates revenue through the sale of compounded engineering plastic resins. The company produces standard, specialty, and recycled material grades sold directly to industrial customers across multiple countries. Products include Polycarbonate, PPS, PEI, PEEK, and PFA compounds with various performance enhancements.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Kotec Corporation is a Japanese engineering plastics compounder that develops and manufactures compounded engineering plastic resins — Polycarbonate (PC), Polyphenylene Sulfide (PPS), Polyetherimide (PEI), Polyetheretherketone (PEEK), and Perfluoroalkoxy alkanes (PFA) — with property enhancements such as glass fiber reinforcement, flame retardancy, UV stability, conductivity, luminescence, mould release, and post-consumer recycled content. The company sells these compounded resins directly to industrial manufacturers in over 20 countries from its Kinokawa Plant in Wakayama, Japan.

Product overview

Kotec is a leading Japanese compounder of engineering plastics offering a comprehensive portfolio of polycarbonate, PPS, PEI, PEEK, and PFA material families. The product portfolio includes standard, UV-stable, flame retardant, glass fiber reinforced, conductive, luminescent, and recycled material grades. Kotec's offerings are organized into five main resin families: PC (polycarbonate) with standard, flame retardant, reinforced, conductive, luminescent, and recycled variants; PPS (polyphenylene sulfide) recycled materials; PEI (polyetherimide) recycled materials; PEEK (polyetheretherketone) recycled materials; and PFA (perfluoroalkoxy alkanes) recycled materials. The company operates primarily as a B2B materials supplier serving manufacturers across 20+ countries.

Differentiator

Problem solved

Functional benefit

Products and services

• K-20/K-30/K-40 Series Polycarbonate (Standard, UV stability, Mould release) Standard polycarbonate resin compounds available with optional UV stability and mould release properties for industrial manufacturers producing plastic components; offered in standard, MRA, UV, and UVR variants across K-20, K-30, and K-40 grade families.
• K-30FR / KFN-30 Flame Retardant Polycarbonate Series Non-brominated and non-chlorinated flame retardant polycarbonate compounds for applications requiring fire safety compliance (UL94 V-0 ratings) without environmentally harmful additives.
• KG/KGN Series Glass Fiber Reinforced Polycarbonate Glass fiber reinforced polycarbonate compounds with optional flame retardancy and wear resistance, including KG series for standard reinforced materials and KGN series for non-brominated/non-chlorinated versions (KG-10MRA through KG-30MRA and KGN-10MRA through KGN-30MRA).
• K-30CF10 Conductive Polycarbonate Electrically conductive carbon fiber reinforced polycarbonate compound (K-30CF10) with 10^5 Ω·cm surface resistivity, 108 MPa tensile strength, and 6,000 MPa flexural modulus, for static dissipation or electromagnetic interference shielding applications.
• KLS-1920 Luminescent Polycarbonate Luminescent polycarbonate compound (KLS-1920) available in Yellow-Green, Blue-Green, and Blue colors for glow-in-the-dark applications.
• R Series Recycled Polycarbonate (PCR PC) Post-consumer recycled (PCR) polycarbonate compounds (R-20, R-30, R-40 grade families) for manufacturers seeking sustainable material content with options for standard, mould release, UV stability, and post-consumer recycled specifications.
• RS Series Recycled Polyphenylene Sulfide (PPS) Recycled PPS compounds including RS-1340 (GF 40%), RS-1340S (GF 40% impact modified), RS-1350 (GF 50%), and RS-1360 (GF 60% industrial grade), with heat deflection temperatures up to 274°C and UL94 V-0 ratings, for high-temperature applications.
• RPEI Series Recycled Polyetherimide (PEI) Recycled PEI compounds including RPEI-10 and RPEI-10G30 (glass fiber reinforced) with UL94 V-0 equivalent flammability ratings and heat deflection temperatures up to 220°C, for high-performance applications requiring thermal stability and mechanical strength.
• PKR Series Recycled Polyetheretherketone (PEEK) Recycled PEEK compounds including PKR-10, PKR-20, PKR-30, and PKR-30G30 (GF 30%), with heat deflection temperatures up to 328°C and UL94 V-0/V-1 flammability ratings, for ultra-high-performance engineering applications requiring exceptional thermal and chemical resistance.
• KFL Series Recycled Perfluoroalkoxy alkanes (PFA) Recycled PFA compounds including KFL-40 and KFL-60 with high melting points of 305-308°C and specific gravity of 2.12-2.15, for applications requiring excellent chemical resistance and high-temperature performance.

Quantifiable outcome

• 0.37 kg-CO2eq total CO2 emissions from raw material procurement to product delivery for recycled polycarbonate
• +2 more outcomes

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Solvay: Belgian specialty chemicals company producing high-performance polymers including PPS, PEEK, and polyamides with sustainability certifications. Comparable in the high-performance polymer space with growing environmental footprint, though much larger and broader in scope.
• Avient (formerly PolyOne): Global specialty polymer compounder with a specialty engineered materials line covering PC, PPS, and recycled-content formulations. Comparable as a broad-line custom compounder with sustainability/durability offerings, though Avient competes at significantly larger scale.
• SABIC: Global petrochemical major with a Specialty resins portfolio including PC, PBT, and recycled-content engineering plastics. Comparable as a large-scale engineering plastics supplier with growing sustainability/PCR offerings, though SABIC produces base resins rather than purely compounding.
• Mitsubishi Engineering-Plastics: Japanese joint venture producing polyacetal (POM) and polybutylene terephthalate (PBT) resins, with specialty grades for high-performance applications. Comparable as a Japanese engineering plastics producer serving overlapping industrial end-markets.
• Asahi Kasei: Large Japanese diversified chemical company with a Performance Polymers division producing engineering plastics (including modified PC and PEEK-family resins). Comparable as a Japanese engineering plastics producer, though far broader in scale and product portfolio than Kotec.

Direct peers

• RTP Company: US-based custom compounder of engineering thermoplastics with extensive line of glass-fiber, carbon-fiber, conductive, flame-retardant, and recycled-content compounds. Closely matches Kotec's compounding model across multiple polymer families with engineered property enhancements.
• Ensinger: German-based compounder and processor of high-performance engineering plastics including PC, PEEK, PPS, and PEI. Comparable as a specialty compounder serving industrial and demanding-application OEMs with similar material families.
• Lehmann&Voss&Co. German specialty compounder offering custom-engineered polymer compounds (LUVOCOM, LUVOTECH) including high-performance thermoplastics with reinforcements and additives. Comparable as a mid-sized specialty compounder focused on customized engineering compounds.
• Polyplastics (Daicel): Japanese engineering plastics compounder specializing in polyacetal (POM), polybutylene terephthalate (PBT), and polycarbonate compounds. Directly competes with Kotec as a Japanese specialty compounder serving automotive and industrial customers with similar compound formulations.

Emerging players

• Victrex: UK-based PEEK specialist producing high-performance polymer compounds, including recycled grades. Comparable as a supplier of high-temperature engineering polymers with sustainability-focused recycled offerings, though Victrex is more vertically integrated into base PEEK production.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights5 records

Customer concentration

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

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 Kotec