# Toyo Engineering Corporation — Process technologies, fertilizer plants and global project engineering

> Toyo Engineering Corporation is a Japanese engineering company established in 1961, with its engineering center in Chiba and a global subsidiary network. Its origins in ammonia and urea technology expanded into petrochemicals, gas processing, power generation and resource facilities. Services span planning, licensing, engineering, procurement, construction and commissioning assistance. References identify whether Toyo itself or a regional subsidiary is responsible, and distinguish full EPC from technology licensing, FEED and construction-support packages.

- **Headquarters:** Chiba, Japan
- **Founded:** 1961
- **Official website:** [Toyo Engineering Corporation](https://www.toyo-eng.com/jp/en/)
- **URL:** https://voltformer.com/epc-contractors/toyo-engineering
- **Markdown:** https://voltformer.com/epc-contractors/toyo-engineering.md
- **JSON:** https://voltformer.com/epc-contractors/toyo-engineering.json

## CEO and leadership profile

### Eiji Hosoi

President and Chief Executive Officer

Eiji Hosoi has been president and CEO of Toyo Engineering Corporation since June 2023. He joined the company in 1982 and previously led its Indonesian engineering company and the plant business unit. His official message and executive biography identify his current leadership of the engineering group.

- **In role since:** 2023-06
- **Sources checked:** 2026-10-10
- **Profile:** [Eiji Hosoi](https://voltformer.com/ceo/eiji-hosoi)

[Toyo Engineering · Executive biography](https://www.toyo-eng.com/jp/en/company/executive/) · [Toyo Engineering · President’s message](https://www.toyo-eng.com/jp/en/company/message/)

## How to select an EPC contractor

EPC means engineering, procurement and construction. Compare contractors by project technology, country, voltage level and contractual delivery scope.

## Directory methodology

This directory presents company profiles, not a scored ranking or certification. Company-wide experience may include engineering, EPCM, equipment supply and consortium roles. Confirm the exact role, current qualifications and project references with the official company before shortlisting.

## What should an EPC enquiry include?

Specify the project country, capacity, grid voltage, single-line diagram, site conditions, scope boundaries, target schedule and acceptance tests. Clarify who owns permitting, civil works, grid studies, commissioning and performance guarantees.

## Equipment enquiries submitted here go to Voltformer. Contact the listed company directly for its EPC services.

## Engineering specializations

- Ammonia and proprietary urea technologies
- Petrochemical and refinery facilities
- Industrial heat and lower-carbon process systems
- Semiconductor chemicals and plant lifecycle engineering

## Declared capabilities

- **Basic and detailed engineering:** Listed capability; confirm project-specific scope
- **Procurement and supply:** Listed capability; confirm project-specific scope
- **Civil and structural construction:** Listed capability; confirm project-specific scope
- **Testing and commissioning:** Listed capability; confirm project-specific scope
- **High-voltage substation EPC:** Not listed
- **Transmission lines:** Not listed
- **Turnkey power plant EPC:** Listed capability; confirm project-specific scope
- **Grid interconnection:** Not listed

## Representative projects

### Indorama Nigeria fertilizer third line
- **Capacity / scope:** Urea licensing and engineering; construction and commissioning support
- **Country:** Nigeria | **Client:** Indorama Fertilizer FZE
- **Description:** The completed Rivers State line uses ACES21 urea technology. Toyo’s stated role includes procurement and support rather than sole responsibility for all construction.
- **Technologies:** ACES21, Ammonia
- **Original source:** [https://www.toyo-eng.com/jp/en/company/news/?n=6198](https://www.toyo-eng.com/jp/en/company/news/?n=6198)

### BPCL Kochi polypropylene unit
- **Capacity / scope:** Toyo-India EPC for a 400000 tonnes/year polypropylene unit
- **Country:** India | **Client:** Bharat Petroleum Corporation Limited
- **Description:** The regional subsidiary is the named contractor at Kochi refinery. The announced schedule is a future target rather than evidence of completed production.
- **Technologies:** EPC, Polypropylene
- **Original source:** [https://www.toyo-eng.com/jp/en/company/news/?n=5914](https://www.toyo-eng.com/jp/en/company/news/?n=5914)

### Aster Bukom ethylene revamps
- **Capacity / scope:** Chiller EPsCm and gas-turbine integration FEED
- **Country:** Singapore | **Client:** Aster Chemicals and Energy / Aster Power
- **Description:** The awarded brownfield packages have different delivery scopes. The turbine study considers exhaust-heat reuse rather than a new standalone power-plant EPC.
- **Technologies:** EPsCm, FEED
- **Original source:** [https://www.toyo-eng.com/jp/en/company/news/?n=6071](https://www.toyo-eng.com/jp/en/company/news/?n=6071)

## Technical services

- **Studies and FEED:** Feasibility, process selection and front-end engineering establish the design basis and define the contracted plant package.
- **Process-plant delivery:** Detailed engineering, procurement and construction or construction support are provided according to the named EPC, EPF or management contract.
- **Commissioning and lifecycle support:** Testing, start-up assistance and operational engineering connect project delivery with safe operation, maintenance and subsequent plant modifications.
- **Energy-transition integration:** Hydrogen, ammonia, carbon capture and efficient industrial utilities are evaluated with explicit technology, energy-supply and project-stage boundaries.

## Standards and certifications



## Official contacts

- **Address:** 1-1 Nakase, Mihama-ku, Chiba 261-8601, Japan

## Reference statistics

- **Established:** 1961
- **Headquarters:** Chiba, Japan
- **Sourced project references:** 3
- **Delivery disciplines:** Engineering · Procurement · Construction

## Company and energy news

- [Toyo introduces g-Steam industrial electric boilers](https://voltformer.com/news/toyo-gsteam-industrial-electric-boiler-2026) — 2026-09-30 · [Markdown](https://voltformer.com/news/toyo-gsteam-industrial-electric-boiler-2026.md)
- [Toyo reports completion of Indorama’s third Nigerian fertilizer line](https://voltformer.com/news/toyo-indorama-nigeria-third-line-completion-2026) — 2026-09-24 · [Markdown](https://voltformer.com/news/toyo-indorama-nigeria-third-line-completion-2026.md)
- [Toyo partners test ammonia co-firing in a naphtha furnace](https://voltformer.com/news/toyo-ammonia-naphtha-furnace-trial-2026) — 2026-09-17 · [Markdown](https://voltformer.com/news/toyo-ammonia-naphtha-furnace-trial-2026.md)
- [Toyo Korea receives HANTOK semiconductor-chemical work](https://voltformer.com/news/toyo-korea-hantok-semiconductor-chemicals-2026) — 2026-07-21 · [Markdown](https://voltformer.com/news/toyo-korea-hantok-semiconductor-chemicals-2026.md)
- [Toyo receives Aster Bukom ethylene revamp packages](https://voltformer.com/news/toyo-aster-bukom-ethylene-revamp-2026) — 2026-05-20 · [Markdown](https://voltformer.com/news/toyo-aster-bukom-ethylene-revamp-2026.md)
- [Toyo and SLB OneSubsea agree offshore CCS cooperation](https://voltformer.com/news/toyo-slb-onesubsea-offshore-ccs-mou-2026) — 2026-04-15 · [Markdown](https://voltformer.com/news/toyo-slb-onesubsea-offshore-ccs-mou-2026.md)
- [Toyo India wins BPCL Kochi polypropylene EPC](https://voltformer.com/news/toyo-india-bpcl-kochi-polypropylene-epc-2026) — 2026-01-29 · [Markdown](https://voltformer.com/news/toyo-india-bpcl-kochi-polypropylene-epc-2026.md)

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