Shin Mutsumi Kogyo Co., Ltd. Our company can perform a wide range of construction such as steel sheet pile punching work, earth retaining, mountain retaining, and gantry erection work mainly in Tokyo and Kanagawa. With a track record of more than 40 years since our founding, we strive for safe, secure and reliable speed construction. We also undertake a lot of construction work from major general contractors, so we are also making efforts for safety management. We have a wide range of orders from large river construction to housing foundation construction, so please feel free to contact us. Copyright (C) 2016 SHINBOKU INDUSTRY co., ltd.