Towa Arcs

What Towa Arcs does

Towa Arcs (東和アークス株式会社) is a privately held Japanese construction materials and diversified industrial group headquartered in Omiya-ku, Saitama, founded in 1954 and controlled by the Ida family. The company manufactures and sells ready-mixed concrete, aggregates (sand, gravel), cement and lime products, asphalt mixtures, recycled aggregates, and civil engineering products through a Kanto-wide network of JIS-certified plants and urban recycling centers (Kawagoe, Warabi, plus the Ageo Materials Center opened February 2019), serving general contractors, infrastructure developers, municipal governments, and building materials retailers across Saitama, Tochigi, and Kanagawa prefectures. The East Matsuyama plant (opened February 2017) provides 3,300L mixer capacity with 3,420t aggregate storage and 5 cement silos, and the new East Matsuyama plant replaced older facilities following a 2017 restructuring.

Beyond construction materials, Towa Arcs operates a petroleum products business (fuel delivery of diesel, kerosene, and heavy oil via dedicated tanker fleet, three Priteel-branded service stations including a Lawson-Three F station, and underground tank leak testing) under its dispatch coordination center (配車事務センター). A new energy and renewable energy solutions division, housed in the Towa Energy Solutions subsidiary, develops in-house floating-solar platform technology (水上架台式太陽光発電) installed on agricultural reservoirs (Yoshimi, Fukaya/Yoshinuma, Floot Solar Tokorozawa), as well as ground-mounted solar, rooftop solar, residential and industrial battery storage, biogas generation, and LED lighting. Specialty construction products include the FD-15 multi-functional concrete admixture with 7μm fibrillated micro-carbon fibers, the Soltron enzyme-based fuel modifier, W-Board temporary flooring, AdBlue® DEF, BETON BLOCK, and 100% Stabilized Base Course Material (launched May 2025).

The business model is predominantly direct-sales-led, with regional field sales departments covering construction materials, petroleum, and new energy, complemented by a B2B WEB order entry system (WEB受注入力システム) launched July 2017, an e-commerce storefront (東和ECサイト), UBE Mitsubishi Cement dealership via the Jinbo Shoten subsidiary (acquired 100% in January 2026), and participation in industry exhibitions (JAPAN BUILD TOKYO 建設DX展, PV EXPO). Towa Arcs holds 100% of Jinbo Shoten, SK Material (formerly Seibu Building Materials, acquired July 2021), Soritsu Kosan, Towa Seikon, Towa Arcs Kitakanto, Towa Energy Solutions, Towa Utsunomiya Sekisan, and Hodotoku Sekisan, and is in the process of consolidating under Towa Group Holdings (東和グループホールディングス) effective July 1, 2026. Sotetsu Holdings retains a 10% strategic equity stake. The company positions itself as a 'resource circulation enterprise' (資源循環企業) and is registered as a Saitama Prefecture SDG Partner (2021).

Name

Towa Arcs

Legal name

東和アークス株式会社

Website

https://towa-arks.co.jp

Company type

Private

Founded year

1954

Operating status

Operating

Headcount range

101–250 employees

Short description

Towa Arcs is a privately held Japanese industrial group headquartered in Saitama that manufactures and sells ready-mixed concrete, aggregates, cement, asphalt, and recycled aggregates through a Kanto-wide network of JIS-certified plants, serving general contractors, municipalities, and infrastructure developers, while also operating petroleum delivery, service stations, and renewable energy businesses.

Ownership category

akta.pro rank

Product category

Construction Materials Manufacturing

NAICS

Asphalt Paving, Roofing, and Saturated Materials Manufacturing (32412)

SIC

Asphalt Paving & Roofing Materials (2950), Wholesale-Petroleum Bulk Stations & Terminals (5171)

akta.pro primary industry

Asphalt Aggregates & Specialty Aggregates (Rail Ballast, Riprap, Lightweight) (IMADAAAJ)

akta.pro secondary industries

Concrete & Asphalt Recycling (RCA/RAP) (BPALAJAD), Recycled Aggregates & C&D Materials Processing (RCA, RAP, Glass Aggregate) (IMAKAHAI)

Keywords

• Ready-mixed concrete
• Construction materials manufacturing
• Recycled aggregates production
• Floating solar power systems
• Petroleum fuel delivery

Headquarters

HQ city

Saitama

HQ country

Japan

HQ region

Asia

Offices11 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Construction Materials Manufacturing & Sales: Manufacturing and sales of ready-mixed concrete, aggregates (sand, gravel), cement/lime products, asphalt mixtures, recycled aggregates, and civil engineering products through own plants and regional network.
2. Petroleum Products: Fuel delivery service (diesel, kerosene, heavy oil), service stations (プリテール series), underground tank leak testing.
3. New Energy & Renewable Energy Solutions: Floating solar, ground-mounted solar, rooftop solar, residential and industrial battery storage, biogas power generation, LED lighting sales and energy-saving support services.
4. Recycled Materials (Urban Recycling): Processing of construction and demolition waste into recycled aggregates at urban recycling plants.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels6 records

Core offering

Towa Arcs manufactures and sells ready-mixed concrete, construction aggregates, cement, asphalt mixtures, and recycled aggregates from construction waste through JIS-certified plants and urban recycling centers in the Kanto region of Japan. The company also distributes petroleum products via service stations and a dedicated fuel delivery fleet, and develops renewable energy solutions including proprietary floating solar power systems, rooftop and ground-mounted solar, battery storage, and LED lighting for residential, commercial, and industrial customers.

Product overview

Towa Arcs operates as a comprehensive trading company (総合商社) specializing in construction materials manufacturing and sales, with a diversified business portfolio spanning four main segments: (1) Construction Materials including aggregates, cement, concrete, asphalt, recycled aggregates, and civil engineering products, with proprietary specialty products like W-Board temporary flooring, AdBlue® urea water, FD-15 concrete modifier, BETON BLOCK, and 100% Stabilized Base Course Material; (2) New Energy Promotion covering floating solar, ground-mounted solar, rooftop solar, and battery storage systems; (3) Petroleum Products including fuel delivery and service stations; and (4) LED Lighting solutions. The company positions itself as a 'resource circulation enterprise' (資源循環企業) committed to sustainable society through recycling plants, environmental product development, and renewable energy initiatives.

Differentiator

Problem solved

Functional benefit

Products and services

• Ready-mixed concrete JIS-certified ready-mixed concrete manufactured at multiple plants across the Kanto region for general contractors, infrastructure developers, and municipal construction projects.
• Construction aggregates (sand, gravel, crushed stone) Sand, gravel, and crushed stone aggregates sold to construction companies and concrete manufacturers, supplied from the Nikko Factory in northern Kanto.
• Cement and lime products Cement, lime, and related cementitious products distributed to B2B customers via exclusive UBE Mitsubishi Cement dealership channel operated by Jinbo Shoten.
• Asphalt mixtures Asphalt mixtures sold to road construction contractors, paving companies, and municipal public works departments.
• Recycled aggregates Recycled aggregate products produced from construction and demolition waste at Warabi, Kawagoe, and Ageo recycling centers, marketed for sustainable construction applications.
• Civil engineering products Civil engineering products including ground improvement materials sold to contractors and infrastructure developers.
• W-Board (工事用敷板) Construction-use temporary flooring board (工事用敷板) used at construction sites for site access and work surface applications, sold to contractors and rental companies.
• AdBlue (高品位尿素水) High-purity urea water (DEF/AdBlue) sold to commercial truck fleets, diesel vehicle operators, and distributors for SCR emissions reduction systems.
• FD-15 concrete modifier (多機能コンクリート改質剤) Multi-functional concrete admixture with micro-carbon fibers, bleeding inhibitor, thixotropy agent, shrinkage reducer, and anti-corrosion agent, sold to ready-mix concrete producers and construction contractors seeking crack resistance and improved durability.
• BETON BLOCK Concrete block products for construction applications, added to Towa Arcs' construction materials product line in July 2022.
• 100% Stabilized Base Course Material (100%安定処理路盤材) 100% stabilized base course material for roadbed applications, providing stable foundation for road construction, launched in May 2025 for road construction contractors.
• Fuel delivery service (燃料デリバリーサービス) Direct delivery of diesel, kerosene, and heavy oil to commercial, industrial, and residential customers in the Kanto region via dedicated tanker fleet.
• Service stations (プリテール series) Company-operated retail service stations under the Plitale brand selling gasoline, diesel, and kerosene to consumer and commercial vehicle operators in the Kanto region.
• Underground tank leak testing service (地下タンク気密漏洩検査) Underground fuel storage tank leak testing service for service station operators and commercial fuel storage sites to ensure regulatory compliance.
• Floating solar power generation system (水上太陽光発電) Proprietary floating solar power generation system installed on water surfaces such as agricultural reservoirs, developed and sold by Towa Energy Solutions to municipalities and renewable energy developers.
• Ground-mounted and rooftop solar power systems Ground-mounted and rooftop solar power generation systems with optional battery storage for residential, commercial, and industrial customers in Japan.
• Battery storage systems (蓄電池) Residential and industrial battery storage systems sold as part of solar power generation solutions for energy resilience and cost reduction.
• LED lighting solutions (LED照明) Environmentally conscious LED lighting products for commercial and industrial facilities, sold together with energy-saving support services.
• Color Stainless Steel (カラーステンレス) Color stainless steel construction material products added to the Towa Arcs product portfolio in September 2021 for architectural and construction applications.

Quantifiable outcome

• 100% recycled waste aggregates available through urban recycling plants (Warabi, Kawagoe, Ageo centers)
• +2 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• 株式会社神保商店 (Jinbo Shoten)coreOthers · 5 January 2026Wholly-owned subsidiary (100% shareholding by Towa Arcs since January 5, 2026) specializing in cement, ready-mixed concrete, and ground improvement material sales. Founded 1951. Dealership for UBE三菱セメント. Operates warehouses in Toda and Ina, Saitama.
• SKマテリアル株式会社 (formerly 西武建材株式会社)coreOthers · 1 July 2021Wholly-owned subsidiary (acquired 100% by Towa Arcs from Seibu Construction in July 2021). Renamed SK Material. Specializes in construction materials. Headquarters relocated to Iruma City, Saitama in November 2021.
• 相立興産株式会社 (formerly 相鉄興産株式会社)coreOthers · 1 December 2017Became a wholly-owned subsidiary of Towa Arcs (December 2017: 90% acquired; December 2020: remaining 10% acquired from Sotetsu Holdings, making it 100% owned). Renamed Soritsu Kosan. Now a core subsidiary.
• UBE三菱セメント株式会社 (UBE Mitsubishi Cement)coreChannel Partner/ Reseller/ DistributorExclusive dealership arrangement for UBE Mitsubishi Cement products, managed through subsidiary Jinbo Shoten (特約店). Jinbo Shoten has been a dealer since 1969.
• 三井住友ファイナンス＆リース株式会社coreStrategic or Co-development PartnerJV partner with Towa Arcs in the Floot Solar Tokorozawa project. Contributed to financing and project structuring for the floating solar installation commissioned in March 2017.
• 八洲電業株式会社coreStrategic or Co-development PartnerJV partner in the Floot Solar Tokorozawa floating solar project, contributing solar equipment and installation expertise.
• 二上株式会社coreStrategic or Co-development PartnerJV partner in the Floot Solar Tokorozawa floating solar project.
• 野崎興業株式会社minorOthersPartner company providing sludge treatment and recycling services at the Ina Recycling Plant (伊奈再生工場). Towa Arcs hosts their virtual tour on its cooperative company page.
• 株式会社黒姫minorOthersIndustrial waste processing company in the Tokyo/Kanto region. Towa Arcs features their Funabashi Plant virtual tour on its cooperative company page.

Scale indicators7 records

Recent moves10 records

Expansion highlights6 records

Broad incumbents

• Taiheiyo Cement Corporation: Japan's largest cement manufacturer with a nationwide ready-mixed concrete, aggregate, and recycling business. Directly comparable as Towa Arcs operates in the same value chain (cement → aggregates → ready-mix concrete) but at vastly larger scale and broader geographic coverage. Taiheiyo's recycling business (C&D waste into aggregates) is particularly analogous to Towa Arcs' Warabi/Kawagoe recycling centers.
• Sumitomo Osaka Cement Co., Ltd. Major Japanese cement and ready-mixed concrete producer with nationwide operations and a minerals/aggregate business. Comparable product portfolio (cement, concrete, aggregates) and similar vertical integration from raw materials to finished concrete products, though operating at much larger scale than Towa Arcs.
• Tokuyama Corporation: Japanese cement and chemicals manufacturer with cement and ready-mixed concrete operations across Japan. Comparable business model combining commodity cement/concrete with specialty chemicals, similar to Towa Arcs' combination of core construction materials and specialty products like FD-15 concrete admixture.
• Mitsubishi Materials Corporation: Operates a Cement segment and metals/mining business including aggregates. Comparable to Towa Arcs in terms of cement and aggregate production, though Mitsubishi Materials is a much larger diversified materials group. Their ready-mixed concrete and aggregate supply to Japanese contractors is directly analogous to Towa Arcs' business.
• ENEOS Holdings (formerly JXTG): Japan's largest petroleum products distributor with service stations, fuel delivery, and energy solutions. Comparable to Towa Arcs' petroleum products business segment (fuel delivery, service stations, underground tank testing), though at vastly greater scale and with refining integration.
• Idemitsu Kosan Co., Ltd. Major Japanese petroleum distributor with service stations, fuel oil delivery, and energy solutions. Comparable to Towa Arcs' petroleum business (Priteel series service stations, fuel delivery service) and increasingly relevant as Idemitsu expands into renewable energy and decarbonized fuels, mirroring Towa Arcs' energy transition.
• Kyocera Corporation: Major Japanese solar PV manufacturer and EPC for ground-mounted, rooftop, and floating solar installations. Comparable to Towa Arcs' renewable energy business segment including floating solar, ground-mounted solar, and battery storage. Kyocera competes with Towa Arcs in the Japanese solar installation market while Towa Arcs differentiates through its proprietary floating platform design.

Others

• UBE Corporation: UBE Mitsubishi Cement is actually a partner of Towa Arcs (Jinbo Shoten has been their dealership since 1969), but UBE Corporation is also a comparable peer as a major Japanese cement producer with diversified materials operations. Provides both supply partnership context and competitive benchmarking.

Emerging players

• Ciel et Terre International: French company that pioneered floating photovoltaic (FPV) systems on water surfaces globally. Comparable to Towa Arcs' proprietary floating solar platform technology, though Ciel et Terre operates at international scale while Towa Arcs focuses on Japanese agricultural reservoirs. Both address the same fundamental value proposition of generating solar power on unused water surfaces.

Regional players

• Showa Denko Materials (now Resonac Holdings): Japanese materials company with construction materials segment including cement, aggregates, and specialty concrete products. Comparable to Towa Arcs in supplying construction materials to Japanese contractors, though Resonac operates at much larger scale and with greater geographic diversification. Both companies serve similar Japanese construction market end-customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/towaarks178120
• Facebookfacebook.com/towa.arks.page
• LinkedInlinkedin.com/company/towa-arks
• Instagraminstagram.com/saiyo.178120/?hl=ja

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries8 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 Towa Arcs