| 21PPI | 21st Century Public Policy Institute |
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| AIST | Advanced industrial Science and Technology |
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| CRIEPI | Central Research Institute of Electric Power Industry |
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| EAJ | Environment Agency of Japan |
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| EBRD | European Bank for Reconstruction and Development |
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| ECFA | Engineering and Consulting Firms Association |
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| EPOC | Environmental Partnership Organizing Club |
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| GEC | Global Environment Centre Foundation |
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| GEPC | Geo-Environmental Protection Center |
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| IBS | Institute of Behavioral Sciences |
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| IDI-Japan | Infrastructure Development Institute-Japan |
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| IVICT | Industrial Vitalization Center for Tohoku |
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| JBIC | Japan Bank for International Cooperation |
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| JCADR | Japan Center for Area Development Research |
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| JESC | Japan Environmental Sanitation Center |
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| JETRO | Japan External Trade Organization |
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| JFEESC | Japan Fire Extinguishing Equipment Safety Center |
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| JICA | Japan International Cooperation Agency |
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| JIWET | Japan Institute of Wastewater Engineering Technology |
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| JPC-SED | Japan Productivity Center for Socio-Economic Development |
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| JSIM | Japan Society of Industrial Machinery Manufacturers |
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| JWRF | Japan Waste Research Foundation |
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| KITA | Kitakyushu International Techno-cooperative Association |
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| MAFF | Ministry of Agriculture, Forestry and Fisheries |
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| METI | Ministry of Economy, Trade and Industry |
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| MEXT | Ministry of Education, Culture, Sports, Science and Technology |
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| MoE | Ministry of the Environment |
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| NEDO | New Energy and Industrial Technology Development Organization |
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| NIES | National Institute for Environmental Studies |
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| OECC | Overseas Environmental Cooperation Center |
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| OECF | Overseas Economic Cooperation Fund |
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| UDC | Urban Development Corporation |
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| WB | World Bank |
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