What Chuo Malleable Iron does

Chuo Malleable Iron Co., Ltd. (中央可鍛工業株式会社), founded 1944 and headquartered in Nisshin, Aichi, Japan, is a specialty metal casting manufacturer listed on the Nagoya Stock Exchange Main Market (ticker 5607). The company produces cast iron and aluminum castings, primarily for automotive applications, alongside a smaller line of office furniture, and reports a consolidated revenue mix of Automotive 69.1%, Industrial 28.0%, and Office furniture 2.9% for FY2026. It claims approximately 30% global share in cast parts for industrial vehicles and approximately 60% global share in cast parts for industrial robots, and operates with 641 consolidated employees as of end-March 2025.

The company's core technical competencies are in vertical squeeze die casting, in-line magnesium treatment, and tilt-type gravity casting — proprietary process technologies built over 80 years for safety-critical structural components. Beyond traditional castings, Chuo has invested in ARRIS Composites (continuous fiber composites) and launched the Castreasure product line in partnership with SyncMOF (metal-organic frameworks), signaling a move toward advanced materials. A Taiwan subsidiary and 2019 acquisition of Takeyama Casting extend capacity outside Japan, and a new China joint venture with Toyota Industries (announced 2025-02-26) further internationalizes the footprint.

Chuo's business model is B2B contract manufacturing for tier-1 OEM customers, anchored by deep Toyota Group ties — Toyota Motor holds 5.00% of shares and Toyota Industries holds 3.92% under a formal capital alliance. FY2026 consolidated revenue was ¥38,720M with operating profit of ¥1,892M (~4.9% margin), implying modest pricing power typical of the casting subsegment. The company earns incremental revenue from industrial machinery (including semiconductor equipment via Taiwan) and from office furniture sales, and is positioning for OEM-driven decarbonization through a carbon-neutral agreement with Chubu Electric Miraiz (signed 2025-07-31).

Name

Chuo Malleable Iron

Legal name

中央可鍛工業株式会社 (CHUO MALLEABLE IRON CO., LTD.)

Website

https://chuokatan.co.jp

Company type

Public

Founded year

1944

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Chuo Malleable Iron (ticker 5607, Nagoya SE) is a Japan-based specialty metal caster founded 1944, producing cast iron and aluminum castings primarily for the Toyota Group's automotive, industrial vehicle, and industrial robot programs, with smaller industrial machinery and office furniture lines.

Ownership category

akta.pro rank

Headquarters

HQ city

Nisshin

HQ country

Japan

HQ region

Asia

Offices6 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, Others

Revenue model

1. Automotive parts (cast iron + aluminum): Sales of cast iron and aluminum cast components — engine mounts, brackets, differential cases, hubs, sub-assemblies — primarily to Toyota Motor and Toyota Group. 69.1% of revenue (FY2025/3). Large-volume B2B contract manufacturing on a per-piece basis.
2. Industrial parts (industrial vehicles, robots, infrastructure): Sales of cast components for industrial vehicles (claimed ~30% world share), industrial robots (claimed ~60% world share), construction/agricultural machinery, semiconductor equipment, wind power, railway braking components, and water-pipe fittings. 28.0% of revenue (FY2025/3).
3. Office furniture (metal/cast products): Sales of office chairs and furniture under the CMC FURNITURE brand — sold via Rakuten e-commerce storefront, through partner Chukyo (株式会社チューキョー), and via rental partner Alice.style. 2.9% of revenue (FY2025/3). Includes both direct-to-consumer and B2B distribution channels.

Go-to-market motion1 record

Distribution channels7 records

Core offering

Chuo Malleable Iron is a Japanese casting manufacturer that produces ductile and gray cast iron components and aluminum (squeeze die-cast and gravity-cast) components in an integrated "rough-material-and-machining" (粗加一貫) production system spanning mold design, casting, heat treatment, machining, painting, sub-assembly, and inspection. Its product portfolio includes automotive cast iron and aluminum parts supplied primarily to Toyota Group, industrial cast parts for robots, industrial vehicles, construction/agricultural equipment, railway, wind power, and semiconductor manufacturing equipment, plus consumer/office furniture under the CMC FURNITURE brand.

Product overview

Chuo Malleable Iron (中央可鍛工業株式会社) operates an integrated "rough-material-and-machining" (粗加一貫) manufacturing platform rather than a discrete software product. The core production backbone spans ductile cast iron (FCD400–700, FC200/250, FCD450, FCD500) and aluminum (AC4C-T6, AC2B-F, ADC12) materials, which feed four named product lines: (1) Automotive Cast Iron Parts, (2) Automotive Aluminum Parts, (3) Industrial Cast Iron Parts (robot reducers, construction/agricultural, railway, semiconductor, water-pipe, and wind-power components), and (4) the CMC FURNITURE office chair consumer brand — which itself is a portfolio of named SKUs such as cotte, HMC, CC-210, AGC-320F, XC-5310, TC-27G, TF-01, HC-8, CN-05GRFB, and the Phiten-collaboration SKOLD (YC-R200FB-PT). On top of this platform, the company has begun commercializing an upcycled material product called Castreasure (キャストレジャー), a MOF-based gas adsorption material made from casting waste. The cast-iron and aluminum lines feed Toyota/Toyota Group automotive programs and industrial applications in which the company claims a 30% world share of industrial vehicle parts and a 60% world share of industrial robot parts, while CMC FURNITURE extends the same quality discipline into the consumer office-chair market via Rakuten Market and Alice.style rental.

Differentiator

Problem solved

Functional benefit

Brands

• CMC FURNITURE: In-house office chair and work chair brand marketed under CMC Furniture (Chuo Malleable Cast Furniture); includes models such as cotte, HMC, SKOLD, and others.
• Castreasure (キャストレジャー)

Products and services

• Automotive Cast Iron Parts (自動車 鋳鉄部品)
• Automotive Aluminum Parts (自動車 アルミ部品) Aluminum components (AC4C-T6, AC2B-F, ADC12) produced by squeeze die-casting and gravity casting for engine systems (compressor cover, compressor mount bracket), drivetrain (differential support, HEV differential support), and EV-specific parts (FC mount bracket).
• Industrial Cast Iron Parts (鋳物一般部品) Cast iron components for industrial robots (reducers, FCD450), construction machinery and agricultural equipment (travel motor parts, tractor gearbox), railway brake parts (FCD500), semiconductor manufacturing equipment (vacuum pump rotors), water pipe housing-type pipe joints, and wind power generation parts (yaw/pitch drives).
• CMC FURNITURE Office Chair Brand In-house office and home-work chair brand leveraging the company's automotive-parts-grade quality standards, including executive, meeting, lounge, and home-work models such as cotte, HMC, and the Phiten-collaboration SKOLD (YC-R200FB-PT); distributed via Rakuten Market, through partner Chukyo Co., Ltd., and via Alice.style rental.
• Castreasure (キャストレジャー) Gas Adsorption Material Gas adsorption material using Metal Organic Frameworks (MOF) technology synthesized from waste generated in the casting process, offering selective adsorption/desorption of specific gases and targeted at CO2 reduction applications; co-developed with SyncMOF Inc.

Quantifiable outcome

• ~60% world market share in industrial robot cast parts
• +6 more outcomes

Named customers11 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

15 partnerships are on record, tiered core — carbon-neutrality roadmap partner, strategic geographic expansion, minor — community / brand visibility sponsorship, minor — open innovation satellite office, minor — product collaboration, innovation — joint research (terminated), minor — supply-chain commitment, innovation / new materials partnership, core — wholly-owned subsidiary, flagship — capital & business alliance + 3.92% shareholder, core — office furniture brand sales partner, minor — rental channel, mid — 2.90% shareholder (likely supplier of foundry equipment) and core — supplier/customer partnership holding association (4.66%).

• Chubu Electric Power Miraiz (中部電力ミライズ)core — carbon-neutrality roadmap partnerStrategic or Co-development Partner · 26 February 2025Comprehensive agreement signed 2025-07-31 for carbon-neutral initiatives. Combines Chuo Malleable Iron's casting operations with Miraiz's energy solutions. Includes renewable-energy adoption at Gifu Hisairi and Kumamoto factories (announced March 2025) and broader CO2-reduction roadmap. Featured in formal CN agreement document.
• China joint venture partner (unnamed)strategic geographic expansionStrategic or Co-development Partner · 26 February 2025Basic agreement signed 2025-02-26 to establish a joint venture company in China. Partner name not disclosed at the basic-agreement stage. Supports China market expansion.
• Toyota Verblitz (rugby team)minor — community / brand visibility sponsorshipGTM or Marketing Partner · 4 February 2025Bronze Partner sponsorship agreement with Toyota Verblitz (Japan Rugby League One) for community contribution and brand visibility in support of regional development through rugby.
• STATION Ai (Nagoya startup hub)minor — open innovation satellite officeStrategic or Co-development Partner · 21 January 2025Opened a satellite office at STATION Ai (Nagoya) in January 2025. STATION Ai is a public-private startup support facility. Provides open-innovation access to startups and SMEs for collaboration.
• Phiten (ファイテン)minor — product collaborationOEM/ Whitelabel/ Licensing Partner · 6 March 2024Collaboration product (Phiten-collaboration chair 'SKOLD') featured on Phiten's YouTube channel. Joint product-marketing arrangement.
• SyncMOF Inc. (SyncMOF株式会社)innovation — joint research (terminated)Strategic or Co-development Partner · 1 June 2023Joint research agreement with Nagoya University spin-off SyncMOF Inc. for co-developing Castreasure (MOF-based gas adsorption material from casting waste). Featured at EXPO 2025 Osaka-Kansai 'MOF FES CO2 Hero Project.' Joint research contract terminated 2026-03-30.
• Partnership Building Declaration (パートナーシップ構築宣言)minor — supply-chain commitmentOthers · 9 November 2022Declared partnership-building with supply-chain partners (announced 2022-11-09), aligning with Japanese government's supply-chain collaboration policy.
• ARRIS Composites, Inc.innovation / new materials partnershipStrategic or Co-development Partner · 5 November 2021Equity investment in U.S.-based startup ARRIS Composites (announced 2021-11-05) holding additive manufacturing technology for lightweight, high-strength new materials. Active joint activities to commercialize new parts. Berkeley, CA R&D + production site visited by Chuo Malleable Iron team.
• Taiwan overseas grandchild companystrategic geographic expansionStrategic or Co-development Partner · 25 April 2019Overseas grandchild company established in Taiwan (April 2019). Provides production and supply presence in Taiwan. Exact partner name not disclosed in the cited materials.
• Takeyama Casting Co., Ltd. (武山鋳造株式会社)core — wholly-owned subsidiaryStrategic or Co-development Partner · 1 April 2019Wholly-owned subsidiary. Share acquisition completed April 2019. Simplified share exchange on October 29, 2024 converted it into a fully-owned subsidiary. Provides additional cast iron production capacity within the group. Capital alliance (子会社化) announced February 8, 2019.
• Toyota Industries Corporation (株式会社豊田自動織機)flagship — capital & business alliance + 3.92% shareholderStrategic or Co-development Partner · 8 February 2019Capital alliance and capital-tie-up contract concluded with Toyota Industries, accompanied by third-party allotment of new shares (Feb 2019). Toyota Industries holds 620,000 shares (3.92%). Relationship progressed through 2018-2019 '検討開始' phase to formal alliance. Includes supply of castings to Toyota Industries industrial-vehicle and parts business.
• Chukyo Co., Ltd. (株式会社チューキョー)core — office furniture brand sales partnerChannel Partner/ Reseller/ DistributorManufacturing and sales partner for office chairs under the CMC FURNITURE brand (chukyo-isu.com). Handles retail and dealer distribution of chairs.
• Alice.style (アリススタイル)minor — rental channelChannel Partner/ Reseller/ DistributorRental partnership via Alice.style platform (since February 2023) for selected chairs — TF-01 Stool, CN-05GRFB High Chair, HC-8 Sway High Chair available for rental.
• Sintokogio, Ltd. (新東工業株式会社)mid — 2.90% shareholder (likely supplier of foundry equipment)Strategic or Co-development PartnerSintokogio holds 460,000 shares (2.90%). Sintokogio is a leading Japanese foundry equipment manufacturer, suggesting a long-standing supplier-customer relationship for casting machinery and equipment.
• CMC Kyoryokukai Holdings (CMC協力会持株会)core — supplier/customer partnership holding association (4.66%)Strategic or Co-development PartnerCMC Kyoryokukai (supplier cooperation association) holds 737,000 shares (4.66%). Cross-shareholding arrangement with key supply-chain partners.

Scale indicators11 records

Recent moves9 records

Expansion highlights5 records

Broad incumbents

• Aisin Corporation: Aisin is one of Japan's largest automotive parts manufacturers and a Toyota Group affiliate, with casting operations feeding drivetrain and chassis applications. It overlaps with Chuo Malleable Iron's automotive iron and aluminum part portfolio but at vastly greater scale and scope.
• Ryobi Limited: Ryobi operates large-scale aluminum die casting for global automotive OEMs as well as power tools and printing equipment. It competes with Chuo's aluminum casting business but operates at broader scale and global footprint.
• Toyota Industries Corporation: Toyota Industries is both Chuo Malleable Iron's largest capital-alliance partner (3.92% shareholder since 2019) and a customer for industrial-vehicle castings. As a much larger diversified Toyota Group conglomerate (forklifts, engines, compressors, automotive parts), it is a comparable incumbent rather than a direct competitor.

Direct peers

• Sintokogio, Ltd. Sintokogio is Japan's leading foundry equipment manufacturer and also operates its own casting operations, including ductile cast iron. It is a 2.90% shareholder of Chuo Malleable Iron and a likely supplier of foundry machinery, making it the closest peer in scale, geography, and process technology.
• Howa Sangyo Co., Ltd. Howa Sangyo manufactures cast iron products, machine tools, and machine components. It competes directly with Chuo Malleable Iron in industrial casting for construction machinery, agricultural equipment, and automotive Tier-1 customers.
• Pacific Industries Co., Ltd. Pacific Industries manufactures automotive and industrial cast iron components, including ductile cast iron, with global manufacturing footprints. Comparable to Chuo in iron casting for automotive and industrial OEM customers.
• Ahresty Corporation: Ahresty is a major Japanese aluminum die casting supplier to automotive OEMs (engine, transmission, EV components). It directly competes with Chuo Malleable Iron's aluminum squeeze die casting and gravity casting product lines serving Japanese auto customers.
• Itoki Corporation: Itoki is another major Japanese office furniture and workspace solutions company. Comparable to Chuo's CMC FURNITURE office chair line in product category, distribution channels (B2B dealers, e-commerce), and end-customers in Japanese offices.
• Rasa Industries, Ltd. Rasa Industries produces cast iron products, ferroalloys, and industrial materials. As a specialized Japanese foundry serving industrial machinery and infrastructure markets, it competes with Chuo's industrial cast iron business for similar non-automotive OEMs.
• Okamura Corporation: Okamura is a leading Japanese office furniture manufacturer (chairs, desks, storage systems). It directly overlaps with Chuo Malleable Iron's CMC FURNITURE office chair business and competes in the same B2B/B2C office furniture channels in Japan.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/watch?v=M67mOCMpmx4
• Instagraminstagram.com/chuokatan_recruit

Revenue estimate

Valuation estimate

Number of profiles

Profiles20 records

Subsidiaries4 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 Chuo Malleable Iron