Plantec

What Plantec does

Plantec Inc. (株式会社プランテック) is a privately held Japanese environmental plant engineering company founded in 1967 in Osaka (originally as Toyokawa Tekko K.K.) and still family-controlled under the Katsui family, with current President and Representative Director Katsui Motoaki (appointed 2017). The company designs, constructs, and operates waste incineration and waste-to-energy plants, centered on its proprietary vertical stoker-type incinerator branded バーチカル炉® (Vertical Combustor) and its dry reaction dust collection device branded プレコートバグフィルタ (Plantec Precoat Bag Filter).

The core technology is the SLA (Super Low Air-ratio) combustion system, which uses primary combustion air at λ=0.5 or below to pyrolyze waste into char and combustible gas, then completes combustion with secondary air in a counter-flow configuration. This enables stable combustion across a calorific range of roughly 1,000-6,000+ kcal/kg without auxiliary fuel or pre-sorting, and supports intermittent operation. The companion Precoat Bag Filter uses a thick reagent precoat layer on filter fabric to remove HCl, SOx, dioxins, mercury, and other heavy metals at wet-process efficiency in a dry process, eliminating wastewater treatment. The combined system is covered by 160+ patents and utility models in Japan and overseas, has been recognized with 17 awards since 2000 including the Chemical Engineering Society Technical Award, JSME Excellent Product Award, Japan Energy Society Progress Award, and the Minister of the Environment Award, and is built on 58 years of specialization and 173+ plant deliveries.

Plantec earns revenue through three streams: (1) one-time EPC (Engineering, Procurement, Construction) contracts for municipal governments and industrial/medical waste operators, awarded through Japanese public procurement (総合評価落札方式 / 公募型プロポーザル) and direct negotiation; (2) recurring long-term operations, maintenance, and parts revenue under 20-year DBO (Design Build Operate) contracts, typically executed through wholly-owned special purpose companies (Goto Green Tech, Mitsuke Green Tech, Wajima Anamizu Green Tech, Takakita Kita-Ibaraki Green Tech, Higashi Kishu Green Tech); and (3) equipment supply plus on-site supervision services to international customers via the Singapore subsidiary Plantec Asia Pacific Pte Ltd (established 2017, renamed 2019) and a Chennai-based manufacturing JV with G.B. Engineering Enterprises (2014). Customers span municipal governments in Japan, Dubai Municipality, and private hazardous/medical waste operators in Singapore and Indonesia (PT. PPLi, DOWA Eco-System group). The company operates from Osaka headquarters with Tokyo and Sapporo sales offices, plus the Singapore APAC hub.

Name

Plantec

Legal name

株式会社プランテック

Website

https://plantec.inc

Company type

Private

Founded year

1967

Operating status

Operating

Headcount range

11–50 employees

Short description

Plantec Inc. is a privately held, 58-year-old Japanese environmental plant engineering company that designs, builds, and operates waste-to-energy incineration plants using its proprietary SLA combustion technology and Vertical Combustor, serving municipal governments and industrial/medical waste operators across Japan and Southeast Asia.

Ownership category

akta.pro rank

Headquarters

HQ city

Nishiku

HQ country

Japan

HQ region

Asia

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Plant Design, Procurement & Construction (EPC): Waste-to-energy and waste processing plant design, procurement, and construction contracts with municipal governments and industrial companies. Revenue recognized upon project completion. Includes both new construction and renovation/upgrade projects.
2. Plant Operations & Maintenance: Long-term operations and maintenance contracts typically spanning 20 years for public-private partnership (DBO方式) projects. Recurring service revenue from facility management, repairs, and parts replacement.
3. Equipment Supply (International): Supply of core incineration equipment (バーチカル炉, プレコートバグフィルタ) and on-site supervision (SV) services to international customers, primarily through Singapore subsidiary Plantec Asia Pacific Pte Ltd.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Plantec designs, constructs, and operates waste incineration plants built around its proprietary vertical stoker-type incinerator ("Vertical Combustor / バーチカル炉®") and dry reaction dust collection device ("Precoat Bag Filter / プレコートバグフィルタ"). Projects are delivered to municipal governments and industrial/medical waste operators under EPC contracts, frequently bundled with long-term (typically 20-year) DBO (Design-Build-Operate) operations and maintenance agreements. Plants can include electricity generation from waste heat. International projects are delivered through a Singapore subsidiary and an Indian manufacturing joint venture.

Product overview

Plantec is an environmental plant engineering company offering a integrated portfolio of waste treatment solutions centered on its proprietary vertical stoker-type incinerator 'バーチカル炉®' and dry reaction dust collection device 'プランテック式プレコートバグフィルタ'. The core offerings include waste-to-energy plants that generate electricity from incineration, comprehensive exhaust gas treatment systems, and various recycling equipment. The products work together as an integrated system: the Vertical Stoker-type Incinerator handles various waste types with high combustion efficiency using low air-ratio technology, while the Precoat Bag Filter removes hazardous substances from exhaust gas. Additional offerings include fly ash processing equipment, recycling systems, and facility maintenance/operation management services. The company serves municipal, industrial, and medical waste treatment needs across Japan and international markets.

Differentiator

Problem solved

Functional benefit

Products and services

• Vertical Stoker-type Incinerator (バーチカル炉® / Vertical Combustor) Proprietary vertical stoker-type incinerator using low air-ratio combustion technology (SLA: Super Low Air-ratio, λ≈0.5 or below). Handles municipal, industrial, medical, and disaster waste without pre-sorting or auxiliary fuel, with a calorific range of approximately 1,000 to 6,000+ kcal/kg. Sold as a complete incineration plant to municipal governments and industrial customers via EPC contracts.
• Precoat Bag Filter (プレコートバグフィルタ / Dry Reaction Dust Collection Device) Dry reaction dust collection device that forms a thick reagent precoat layer on filter fabric to remove dioxins, mercury, HCl, SOx, and heavy metals from flue gas. Achieves wet-process-level removal efficiency in a dry process, eliminating wastewater treatment and reducing reagent and fly ash disposal volumes. Sold as part of complete incineration plants or as a system to international customers.
• Waste-to-Energy Plant (廃棄物発電プラント) Complete waste-to-energy plants that generate electricity and recover heat from combustion of municipal, industrial, and medical waste. Delivered as turnkey EPC plants to municipalities and industrial operators, with example installations at 100 t/day producing 23,000 kW and 120 t/24h producing 2.7 MW.
• Plant Operations and Maintenance Services (運転管理業務) Long-term (typically 20-year) Design-Build-Operate (DBO) operations and maintenance contracts for waste processing facilities, delivered through wholly-owned special purpose companies such as Gotoyama Green Tech, Wajima-Anamizu Green Tech, Takahagi Kita-Ibaraki Green Tech, Mitsuke Green Tech, and Higashi Kishu Green Tech. Includes facility management, parts replacement, and regulatory compliance.
• Plant Renovation and Periodic Inspection Services (定期点検整備・改修工事・基幹改良工事) Renovation, periodic inspection, repair, and major equipment upgrade construction services for existing waste processing facilities. Example contracts include the Ito City (Shizuoka) Environmental Beautification Center renovation (142 t/day, 71 t/24h x 2 furnaces) and Eco Park Samukawa core equipment improvement project (2024).

Quantifiable outcome

• Auxiliary fuel reduction to 1/10 or less compared to conventional stoker furnaces during intermittent operation
• +5 more outcomes

Named customers11 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

14 partnerships are on record, tiered major, core and minor.

• Ando Hazama Corporation (株式会社安藤・間)majorChannel Partner/ Reseller/ Distributor · 1 January 2024Joint venture partner for the Higashi Kishu Wide-Area Waste Processing Facility construction project (2024). 安藤・間 is a major Japanese construction company. Both companies form a joint construction joint venture (特定建設工事共同企業体) for public infrastructure projects.
• Hirano Corporation (株式会社平野組)majorChannel Partner/ Reseller/ Distributor · 1 January 2024Joint venture partner for the Higashi Kishu Wide-Area Waste Processing Facility construction project (2024). 平野組 forms part of the joint construction joint venture (特定建設工事共同企業体) with Plantec and Ando Hazama.
• Takahagi Kita Ibaraki Green Tech Co., Ltd. (高萩北茨城グリーンテック)majorChannel Partner/ Reseller/ Distributor · 1 January 2024SPC with Plantec as the representative company for 20-year operations of the Takahagi-Kita Ibaraki Clean Center (completed 2023).
• Higashi Kishu Green Tech Co., Ltd. (東紀州グリーンテック)majorChannel Partner/ Reseller/ Distributor · 1 January 2024SPC established for 20-year operations of the Higashi Kishu Wide-Area Waste Processing Facility (scheduled 2028 completion). Plantec is the representative company.
• Wajima Anamizumi Green Tech Co., Ltd. (輪島穴水グリーンテック)majorChannel Partner/ Reseller/ Distributor · 1 January 2023SPC established by Plantec for 20-year operations of the Wajima-Anamizumi Clean Center (completed 2022).
• Hiroshima University (広島大学)coreStrategic or Co-development Partner · 1 January 2020Joint research partnership with Professor Tsuru Toshikazu of Hiroshima University Graduate School of Chemical Engineering. Selected by Japan's Ministry of Environment for the Environmental Research Comprehensive Promotion Fund (環境研究総合推進費) in 2020 to develop a novel water vapor recovery membrane system for waste incineration plants.
• DOWA Eco-System Co., Ltd. (DOWAエコシステム株式会社)majorChannel Partner/ Reseller/ Distributor · 1 January 2019DOWA Eco-System is a major Japanese environmental and recycling company. Plantec has supplied incinerators to DOWA's Indonesian subsidiary PT. Prasadha Pamunah Limbah Industri (PPLi) and to DOWA's Singapore subsidiary Technochem Environmental Complex Pte. Ltd., marking multiple project collaborations.
• Gotoyama Green Tech Co., Ltd. (五島グリーンテック)majorChannel Partner/ Reseller/ Distributor · 1 January 2019SPC established by Plantec for 20-year operations of the Gotoyama City Clean Center (completed 2019).
• Tohoku University (東北大学)coreStrategic or Co-development Partner · 1 January 2018Joint research partnership with Tohoku University selected by NEDO in 2018 for the 'ThermoPhotoVoltaic Power Generation Technology for Waste Incineration' project under the New Energy Technology Innovation Support Program for Venture Companies.
• Niigata Mitsuke Green Tech Co., Ltd. (見附グリーンテック)majorChannel Partner/ Reseller/ Distributor · 1 January 2018Special purpose company (SPC) jointly established with Mituken Tsumeari Co., Ltd. (株式会社見附舗道) for 20-year operations of the Mitsuke New Waste Processing Facility (completed 2019).
• Plantec Asia Pacific Pte Ltd (Singapore)coreOthers · 1 January 2017100% owned subsidiary established in Singapore in August 2017 (initially named Plantec Argonaut Pte Ltd, renamed Plantec Asia Pacific Pte Ltd in June 2019). Serves as Asia-Pacific regional hub for sales, engineering, procurement coordination, and on-site supervision.
• Modern Asia Environmental Holdings Pte. Ltd. (formerly Technochem Environmental Complex Pte. Ltd.)majorChannel Partner/ Reseller/ Distributor · 1 January 2017DOWA Eco-System's Singapore subsidiary operating a hazardous industrial waste incineration facility in Tuas, Singapore. Plantec supplied the Vertical Combustor and Turbo Chemical Baghouse for this facility completed in 2017.
• G.B. Engineering Enterprises Pvt. Ltd. (India)coreStrategic or Co-development Partner · 1 January 2014Joint venture established in Chennai, India in 2014 with G.B. Engineering Enterprises Pvt. Ltd. for manufacturing and supplying incineration plant equipment internationally. Serves as the production base for equipment supplied to Southeast Asian projects.
• EIGHT Japan Engineering Consultants Inc. (株式会社エイト日本技術開発)minorStrategic or Co-development Partner · 1 January 2013Partner for the Japan Ministry of Environment's overseas expansion program (平成25-26年度 我が国循環産業海外展開事業化促進事業), conducting feasibility studies for waste-to-energy technology introduction in Tamil Nadu, India.

Scale indicators6 records

Recent moves2 records

Expansion highlights5 records

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Customer concentration

• LinkedInlinkedin.com/company/plantec-corporation

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries5 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 Plantec