What K&M does

K&M is a Japanese specialty manufacturer of wood-plastic composites (WPC), also referred to as synthetic wood or recycled composites. Founded in 2009 as a spin-off from a manufacturer's business division and headquartered in Koka, Japan, the company operates as a member of the Strandex Group, a global consortium of only ten companies worldwide licensed to use the proprietary WPC extrusion molding technology. K&M's products combine wood flour (wood powder) with plastic resin through an extrusion molding process to produce materials that replicate the texture and aesthetic of natural wood while eliminating its typical deficiencies, including corrosion, splintering, and limited durability in outdoor applications.

K&M's product portfolio spans single-layer composites in solid, hollow, and circular hollow geometries; two-layer composite products with differentiated material layers; and steel pipe coatings using WPC material. Manufacturing is supported by in-house extrusion lines, processing and machining equipment, and dedicated testing and evaluation facilities. The company emphasizes sustainability by incorporating recycled resin and wood flour into its raw materials and has recently invested in closed-loop recycling of its composite products.

The company's go-to-market centers on maintaining established sales routes into large Japanese exterior construction companies (大手エクステリア会社), a channel it inherited at the time of its spin-off. It is privately held with no public listing, no disclosed institutional investors, and no publicly available financial information. Pricing is not disclosed and there is no evidence of a software, digital, or subscription revenue component; K&M operates as a traditional B2B industrial materials supplier serving the Japanese exterior construction industry.

Name

K&M

Legal name

K&M

Website

https://k-and-m-co.jp

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

11–50 employees

Short description

K&M is a Japanese manufacturer of wood-plastic composite (synthetic wood) products, established in 2009 in Koka, Japan, and part of the Strandex Group. It supplies recycled-composite decking, profiles, and steel pipe coatings to major Japanese exterior construction companies using proprietary extrusion molding technology.

Ownership category

akta.pro rank

Product category

Composite Building Materials

NAICS

Wood Product Manufacturing (321), Engineered Wood Member Manufacturing (321215)

SIC

Lumber & Wood Products (No Furniture) (2400)

akta.pro primary industry

Wood-based Biocomposites & Natural Fiber Composites (WPC, bio-reinforced plastics) (IMAMALAF)

Keywords

• Wood-plastic composites
• Synthetic wood manufacturing
• Composite extrusion products
• Recycled composite materials
• WPC building materials

Headquarters

HQ city

Koka

HQ country

Japan

HQ region

Asia

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Core offering

K&M manufactures and sells wood-plastic composite (WPC) profiles for exterior construction applications, producing solid single-layer, hollow single-layer, hollow circular, and two-layer composite shapes, as well as steel pipe coating products. Profiles are made by extruding wood flour with recycled polypropylene and polyethylene, with in-house mixing, pulverizing, embossing, and CNC machining capabilities.

Product overview

K&M is a manufacturer of Wood Plastic Recycled Composites (合成木材), established in 2009 as an independent company from a manufacturer business division. The company's product portfolio consists of wood-plastic composite products created by mixing wood powder (木粉) and plastic, formed through extrusion molding. The core product lines include single-layer products available in solid form (無垢品), hollow form (中空品), and hollow circular form (丸形状), as well as two-layer composite products (2層品) and steel pipe coating products (鋼管被覆製品). The company utilizes closed-loop recycling (クローズドリサイクル) and incorporates recycled materials in their raw materials. Manufacturing capabilities include extrusion lines, processing equipment, and testing/evaluation facilities. K&M serves major exterior construction (エクステリア) companies with their wood-like products that overcome natural wood deficiencies such as corrosion and splintering.

Differentiator

Problem solved

Functional benefit

Products and services

• Solid Single-Layer Wood-Plastic Composite (無垢品)

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators1 record

Recent moves7 records

Expansion highlights4 records

Direct peers

• Geolam: Manufacturer of wood-plastic composite profiles for architectural and outdoor applications including decking, louvers, and siding. Closely aligned with K&M's hybrid wood-plastic extrusion product approach.
• NewTechWood: Manufacturer of composite decking, siding, and architectural products using wood-plastic composite technology. Comparable in product format and end-use applications to K&M's exterior product range.
• Fiberon: Manufacturer of composite decking and railing products using wood-plastic composite technology, serving residential and commercial exterior construction. Closely aligned with K&M's product offering and target use case.
• Eva-Last: Global manufacturer of bamboo-plastic and wood-plastic composite building products including decking, cladding, and structural profiles. Operates in the same WPC/biocomposite space with comparable extrusion-based manufacturing.
• MoistureShield (Oldcastle APG): Manufacturer of composite decking products using wood-plastic composite technology with focus on water resistance. Competes directly with K&M in the durable, weather-resistant decking category.

Broad incumbents

• Trex Company: The largest U.S. manufacturer of wood-plastic composite decking and railing products, Trex is a global benchmark in WPC outdoor building products and a key competitor in the broader composite lumber category where K&M operates.
• TimberTech (AZEK Building Products): Major North American manufacturer of composite decking, railing, and porch products using WPC technology. Comparable to K&M as a direct WPC product manufacturer serving exterior construction applications.
• UPM Biocomposites: European manufacturer of wood-plastic composites sold under the UPM ProFi brand, used in decking and outdoor applications. Comparable in technology, materials, and use case, but operates at a much larger scale.
• CertainTeed (Saint-Gobain): Building products division of Saint-Gobain offering composite decking and railing products. Comparable as a large incumbent offering WPC-based exterior products through established construction distribution channels.

Regional players

• Fkur Kunststoff: European manufacturer specializing in wood-plastic composite compounds and biocomposite materials for extrusion applications. Comparable in WPC material science focus, though primarily serving European markets rather than Japan.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights5 records

Customer concentration

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 K&M