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Energy and Plant Operations
- Aomori Plant Co., Ltd. - IHI Chita E & M Co., Ltd. - IHI PACKAFED BOILER CO., LTD. - IHI Inspection & Instrumentation Co., Ltd. - IHI Kankyo Engineering Co., Ltd. - IHI Plant Construction Co., Ltd. - IHI Plant Engineering Corporation - Kotobuki Iron Works Co., Ltd. - Nagoya Plastic Handling Co., Ltd. - NICO Precision Co., Inc. - Niigata Power Systems Co., Ltd. - Takashima Giken Co., Ltd. - Toyosu Energy Service Co., Ltd. - Kanamachi Purification Plant Energy Service Co., Ltd
| | | | Nuclear power facility remodeling, construction and maintenance work operations |
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| | | | Production of refuse-derived fuel |
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| | | | Sales and maintenance service of packaged boilers |
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| | | | Non-destructive inspection services and manufacturing of related devices |
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| | | | Operation and maintenance services for environment control equipment |
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| | | | Engineering and construction of power plants and process plants |
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| | | | Engineering and manufacturing of chemical plant equipment |
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| Kotobuki Iron Works Co., Ltd. | |
| | | | Manufacturing of boiler and diesel engines parts |
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| Nagoya Plastic Handling Co., Ltd. | |
| | | | Treatment, sorting, compression, packing and storage of other plastic container packaging materials |
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| | | | Manufacture and sale of parts for motors |
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| | | | Manufacture, sale, etc. of diesel engines for marine/power-generation/rail-traction use, gas engines, gas turbines, and "Z-peller" propulsion units |
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| | | | Developing and manufacturing, selling various (Non-Destruction) inspection machines mainly for beverage |
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| Toyosu Energy Service Co., Ltd. | |
| | | | Supply business operaitons; electric power, steam, hot water, and air conditioning |
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| Kanamachi Purification Plant Energy Service Co., Ltd | |
| | | | Power and steam supply to Tokyo Metropolitan Government Bureau of Waterworks |
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