Ministry of Land, Infrastructure, Transport and Tourism (road)
JICA (Japan International Cooperation Agency)
Ministry of Foreign Affairs (Official Development Assistance)
Japan Road Association
Highway Survey Committee
Japan Tunnel Technology Association
East Nippon Expressway Company Limited
Central Nippon Expressway Company Limited
West Nippon Expressway Company Limited
Metropolitan Expressway Co., Ltd.
Hanshin Expressway Co., Ltd.
Honshu-Shikoku Expressway Co., Ltd.
East Japan Railway Company
West Japan Railway Company
Hokkaido Railway Company
Kyushu Railway Company
Japan Freight Railway Company
Railway Technical Research Institute
International Tunnel Association (ITA)
International Road Federation (IRF)
Asian Highway (UNESCAP)
Taiwan High Speed Rail
Korean high speed train
World Highways
ITS International
Tsushima City, Nagasaki Prefecture
Tsushima Tourism and Products Association
Tsushima Coast Guard
Iki Sightseeing Navi
Chairman's speech corner
Paper corner
Recruitment of members and donations
Video introduction
Pamphlet
Q & A
Industrial policy in Kyushu area
Japan Sea National Land Axis Concept
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