Ministry of Land, Infrastructure, Transport and Tourism (roads)
JICA (Japan International Cooperation Agency)
Ministry of Foreign Affairs (Official Development Assistance)
Japan Road Association
Expressway Research Institute
Japan Tunneling Association
East Nippon Expressway Co., Ltd.
Central Nippon Expressway Co., Ltd.
West Nippon Expressway Co., Ltd.
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 Technology Research Institute
International Tunnel Association (ITA)
International Road Federation (IRF)
Asian Highway (UNESCAP)
Taiwan High Speed Rail
Korea High Speed Rail
World Highways
ITS International
Tsushima City, Nagasaki Prefecture
Tsushima Tourism and Products Association
Tsushima Coast Guard
Iki Tourism Navigator
Chairman's Speech Corner
Paper Corner
Membership and donation recruitment
Video Introduction
Brochure
Q&A
Industrial policy in the Kyushu region
Japan Sea National Land Axis Concept
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