| ● Private Companies and Others |
| East Japan Railway Company |
| OBAYASHI CORPORATION. |
| Asahi Kasei Corporation. |
| AJINOMOTO CO., INC |
| ATAKA Construction ＆ Engineering Co., Ltd. |
| AQUAS CORPORATION. |
| Akira Inc. |
| Amasaki Cokes Industry Inc. |
| Ishikawajima-Harima Heavy Industries Co., Ltd. |
| IWAKI CO., LTD. |
| INAX Corporation |
| Ebara Corporation |
| EBARA DENSAN LTD. |
| EBARA JITSUGYO CO., LTD. |
| Eisai Co., Ltd. |
| OSAKA GAS CO.,LTD. |
| Osaka Shiseido Co., Ltd. |
| ORGANO CORPORATION |
| Okigawa Industrial Refuse Disposal Center |
| ONODA CEMENT CORPORATION |
| Kanebo, Ltd. |
| Kao Corporation. |
| Kawasaki Heavy Industries, Ltd. |
| KAYABA INDUSTRY CO., LTD . |
| KAWAI-LIME INC. |
| KAKENKAGAKU INC. |
| Kurita Water Industries Ltd. |
| KYODENSYA INC. |
| Kikkoman Corporation. |
| Nippon Del Monte Corporation, |
| KANZAKI STEEL INDUSTRY INC. |
| Q.P. Corporation. |
| Gunma Bank |
| KYODO SHIRYO CO., LTD. |
| KYODO HAKKO CO., LTD |
| kimmon Manufacturing Inc. |
| KUREHA STEEL INC. |
| KEMO COSMETIC MANUFACTURING INC. |
| Pent-Ocean Construction. |
| Sapporo Breweries Ltd. |
| SANYO Electric Co., Ltd. |
| Sankyo Kogyo Corporation. |
| SHUNANDENKO INC. |
| SANKI |
| SHOWA DIAMOND INC. |
| SHOWA DENKO K. K. |
| NIPPON STEEL CORPORATION. |
| KAWASAKI STEEL Corporation |
| Nippon Kokan Koji |
| NAKAYAMA STEEL WORKS,LTD. |
| KOBE STEEL, LTD. |
| Daido Steel Co., Ltd. |
| Nippon Steel Chemical Group |
| SHINNIHON CHEMICAL INDUSTRY INC. |
| SHINNIHON CHEMICAL INC. |
| SHINDAIKYOWA OIL CHEMICAL INC. |
| Shin-Etsu Chemical Co., Ltd. |
| Shiseido Co., Ltd. |
| SHINKAWA Electric Co.,Ltd. |
| Sumitomo Osaka Cement Co., Ltd. |
| MYOJO CEMENT CO., LTD |
| Chiba Factory, Sumitomo Chemical Co., Ltd. |
| Sumitomo Heavy Industries, Ltd. |
| Sumitomo Electric Industries, Ltd. |
| Suido Kiko Kaisha, LTD. |
| SEIKO ISUZU MOTOR INC. |
| CEMEDINE Co., ltd. |
| MARUHA Co., Ltd/ |
| DAIKIN INDUSTRIES, Ltd. |
| TAIHEIYO METAL INDUSTRY INC. |
| Daishowa Paper Manufacturing Co., Ltd. |
| Takuma Co., Ltd. |
| MITSUBISHI SHINDOH CO.,LTD |
| TAMAGAWA SEIKI INC. |
| Takasago Thermal Engineering Co., Ltd. |
| CHIYODA Corporation. |
| Chiyoda Corp. |
| Churitsu Electric Corp. |
| Chisso Engineering Co., Ltd. |
| Hitachi IE Systems Co.,Ltd. |
| Tsukishima Kikai Co., Ltd. |
| TEIJIN LIMITED |
| TEITO CONSTRUCTION INC. |
| DMW CORPORATION |
| DENKA CO., LTD. |
| DENKA CONSULT & ENGINEERING CO., LTD. |
| Toyota Motor Corporation. |
| DRICO Ltd., |
| TOYO FOODS INC. |
| TOA ENERGY INC. |
| TOA CORPORATION |
| TOKYO GAS Co., Ltd. |
| Plating Pollution Prevention Association Inc., Tokyo |
| Tokyo Automation Inc. |
| Mitsubishi Pharma Corporation. |
| TOYO INK MFG CO., LTD |
| Toyo Engineering Corporation |
| TOYO FOODS & ENGINEERING INC. |
| TOSHIBA CORPORATION |
| Toshiba Chemical Corp. |
| TOHO ELECTRICAL CONSTRUCTION CO., LTD |
| Nitta Gelatin Inc |
| NIKKEN-KASEI INC. |
| NISSAN MOTOR Co., Ltd. |
| NISSAN ENGINEERING Co., Ltd. |
| Hitachi High-Technologies Corporation. |
| Nitto Boseki Co.,Ltd. |
| Nitto Boseki Building materials Co.,Ltd. |
| Nitto Flour Milling Co.,Ltd. |
| NISSHIN STEEL CO.,LTD. |
| JAPAN ALMINUM INDUSTRY INC. |
| NIHON KEISOKU KOGYO INC. |
| Nippon Conveyor Co.,Ltd. |
| JAPAN AIR FILTER INC. |
| NCR Japan,Ltd. |
| JAPAN FELTMATION INC. |
| SUNTORY LIMITED |
| JAPAN ENERGY COPORATION. |
| NIHON SHOKUEN SEIZO INC. |
| NIHON SHOKUHIN KAKO CO., LTD. |
| Japan Metals & Chemicals Co., Ltd. |
| NIPPON SODA CO., LTD. |
| Nippon Yakin Kogyo Co., Ltd. |
| NIHON GLASS INC. |
| NIPPON CHUTETSUKAN CO. |
| Niigata Engineering Co., Ltd. |
| NICHIREI CORPORATION. |
| HATSUNEN INC. |
| HANAMARUKI Co., Ltd. |
| Babcock-Hitachi K.K. |
| Hitachi, Ltd. |
| Hitachi Maxcell, Ltd., |
| Hitachi Instruments Service Co., Ltd. |
| Hitachi Metals, Ltd. |
| Hitachi Plant Engineering ＆ Construction Co., Ltd. |
| TOKYO MONORAIL CO.,LTD. |
| Hitachi Construction Machinery Co., Ltd. |
| Fuji Electric Systems Co.,Ltd. |
| FUJI COCA-COLA BOTTLING Co.,Ltd. |
| FOSO DONETSU KOGYO INC. |
| Bridgestone Corporation. |
| FUDO Construction Co.,ltd. |
| FUKAYA STEEL INC. |
| FUJI INDUSTRY INC. |
| Honda Motor Co.,Ltd. |
| MITA INDUSTRY INC. |
| MITSUBISHI HEAVY INDUSTRIES., LTD. |
| MITSUBISHI ELECTRIC CORPORATION |
| MITSUBISHI CHEMICAL INDUSTRY CO., LTD. |
| MITSUBISHI MATERIALS CORPORATION |
| Mitsubishi Chemical MKV Company. |
| MITSUI MIIKE MACHINERY Co., Ltd. |
| MITSUI MIIKE CHEMIKAL INDUSTRY CO., LTD |
| MARUSAN PAPER MFG., LTD. |
| MEIJI SEIKA KAISHA, LTD. |
| Meiji Dairies Corporation |
| MEIDENSYA CORPORATION. |
| Snow Brand Milk Products Co.,Ltd. |
| MORIZUMI INDUSTRY INC. |
| C.S.N COMPANY LTD. (Brazil) |
| Yamatake Corporation |
| Yamatake & Co.,Ltd. |
| YAESU ELECTRONICS INC. |
| POSKO (South Korea) |
| YASKAWA ELECTRIC CORPORATION. |
| Yasukawa Shoji Limited |
| ISOMURA INC. |
| ISOMURA HOSUI KIKO. |
| and other organizations |
