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CREATING
THE FUTURE

Technology and Facilities
Speed and Price Competitiveness

Sumiju Yokosuka Kougyo Co., Ltd. is a subsidiary of Sumitomo Heavy Industries Marine & Engineering Co., Ltd., in the Sumitomo Heavy Industries Ltd. group, with sales consisting of Sumitomo Heavy Industries Marine & Engineering Co., Ltd. projects and external sales of our unique projects.
The technology and facilities of a major organization with the speed and price competitiveness of a small to medium-sized enterprise. We work wholeheartedly to support our customers across a wide range of fields including steel structures such as bridges and marine structures, construction of civil engineering projects, and manufacturing and servicing of various types of machinery.

NEWS & TOPICS

February 01, 2024
The Company website has been updated.
September 21, 2023
Received work order from US Army in Okinawa for renovation of ammunition depot.
August 29, 2023
Received work order from US Navy in Sasebo for dock cleaning construction.
June 30, 2023
Entered into MATOC (Multiple Task Order Contract) of US Navy in Yokosuka.
June 23, 2023
Received work order from US Navy in Yokosuka for renovation for dock caisson #2.
March 09, 2023
Received work order from US Air Force in Okinawa for renovation of all unit buildings.
January 26, 2023
Received work order for jacket of gypsum pier production.
December 23, 2022
Received work order from a foreign construction management company for the Yokosuka Hakozaki fuel tank renovation.
October 28, 2022
Received work order from US Navy in Yokosuka for renovation of training gym HVAC system.
July 20, 2022
Received work order from US Navy in Yokosuka for renovation of a large-scale warehouse.
July 15, 2022
Received work order from US Air Force in Okinawa for renovation of an aircraft engine maintenance plant.
June 29, 2022
Received work order from US Navy in Yokosuka for renovation of dock and caisson #5.
June 03, 2022
Received work order from US Navy in Yokosuka for renovation of tugboats.
May 1, 2022
Company website has been updated.
December 2, 2021
Received an order for the manufacturing of floating breakwaters.
September 29, 2021
Received an order from the U.S. Air Force for replacement work on a transformer.
September 22, 2021
Received an order for repair work on a crane at Yokosuka Naval Base.
September 17, 2021
Received an order from the U.S. Air Force for repair work at a security building.
September 16, 2021
Received an order for the manufacturing of a floating pier.
June 10, 2021
Received an order from the U.S. Navy for repair work on two push boats.
April 21, 2021
Received an order from the U.S. Navy for repair work at a parking lot.
April 21, 2021
Entered into MATOC (Multiple Award Task Order Contract) with US Navy at Okinawa office.
April 19, 2021
Received an order for the manufacturing of fishing port caisson steel shells.
April 2, 2021
Entered into BIG-MACC (Multiple Award Construction Contract) with US Navy at Okinawa office.
February 24, 2021
Received a work order for installation of emergency generator at MCAS Futenma.
February 9, 2021
Received a roof repair work order from Commander Fleet Activities Yokosuka (CFAY).
December 3, 2020
Received a repair work order for US Navy Yokosuka No. 6 caisson (dock gate).
September 29, 2020
Received a repair work order for US Navy Sasebo No. 2 caisson (dock gate).
June 25, 2020
Received a repair work order for Hangar 1 at MCAS Futenma.
February 12, 2020
Received a work order for demolition and cleanup of 11 buildings at the US Naval Air Facility Atsugi.
September 30, 2019
Received a work order for repair work on 26 family residences at the US Kadena Air Base.
September 27, 2019
Received a work order for repair work on US military warehouses in the Chibana area.
September 27, 2019
Received a work order for door replacement works at four hangars at the US Kadena Air Base.
September 19, 2019
Received a work order for quay repair work inside US Navy Tsurumi Fuel Terminal OU-2.
June 2019
Successfully entered into BIG-MACC (Multiple Award Construction Contract) at the Yokosuka base office.
March 1, 2019
Website launched
December 31, 2018
Received a work order for laying secondary electrical wiring at residential homes from the U.S. Air Force.
September 10, 2018
Received a work order for repair and interior work on 3 fuel tanks from a U.S. military refueling unit/company G.
August 30, 2018
Was awarded a construction order for a buried steam pipe on the U.S. Yokosuka Naval Base.
May 2, 2018
Received phase 2 repair work order for aircraft aprons from the U.S. Air Force (30 structures).
March 19, 2018
Was awarded a barracks repair work order from the U.S. Navy.
February 16, 2018
Was awarded an order for a truss piping bridge from Ube-Mitsubishi Cement.
September 19, 2017
Was awarded an aircraft shelter maintenance work order for the U.S. military base in Okinawa.
September 19, 2017
Received phase 1 repair work order for aircraft aprons from the U.S. Air Force (20 structures).
August 28, 2017
Was awarded a hangar repair work order from the U.S. Army.
July 1, 2017
Launched the Environmental Improvement Section to improve the environment at manufacturing sites for disabled individuals.
製品紹介

PRODUCTS
AND
SOLUTION

Jackets are placed on steel pipe piles driven into the seabed, with a concrete base laid over the top to construct a pier. This photograph shows the components known as jackets. 矢印