JRTT jointly builds and owns passenger ships and cargo ships with coastal shipping companies. Since the establishment of this Joint Ownership Shipbuilding Scheme in 1959, JRTT has built over 4,000 ships. As the largest shipowners in Japan JRTT contributes to regional revitalisation and the streamlining of logistics.

JSTRA acts as a coordinator to promote tie-ups among the industries (shipbuilding and ship machinery industries and marine transport industry), academic communities (universities, research institutes and academic societies) and the administration (government and inspection organisations).

JFE Steel Corporation is a steelmaker engaged in the total steel-making process, taking iron ore raw material and turning it into final products. Boasting one of the world's greatest capacities for steel production, JFE Steel satisfies customers by producing steel under a corporate philosophy of contributing to society with the world's most innovative technology.

Kawasaki Kisen Kaisha, Ltd. (K Line) earns the trust of customers through the provision of safe, reliable transportation and logistics services. Their aim is to become an important infrastructure for global society, and to be the best partner with customers by providing the high-quality logistics services based on customer first policy.

Keihin Dock Co., Ltd. was established in 1968 with investment from Nippon Yusen Kabushiki Kaisha as a company engaged in small ship repair business. Since their founding, the company have maintained close ties with Keihin Seiki, Keihin Corporation, and Keihin Valve Corporation, integrating industrial valve manufacturing and sales operations with these companies.

KEYS Bunkering West Japan is a coastal shipping company that supplies and sells LNG (liquefied natural gas) as marine fuel on a ship-to-ship basis. They own and operate the fuel supply vessels.

Koyo Kaiun Co., Ltd. is a renowned global chemical tanker owner operator from Japan. With more than 75 years of operational experience, Koyo fleets are all equipped with stainless steel tanks. Altogether, they transport around 500 different types of liquids, including organic and inorganic bulk liquid chemicals, acids, animal fats, edible oils, potable alcohols and clean petroleum products.

Kumiai Senpaku Co., Ltd. fabricates livestock grain carriers, large material carriers for iron steel, LPG carriers and oil tankers in rapid succession with all-out support from their cargo owners, who are leading businesses in Japan's industry, resulting in an expanding fleet of vessels. They own a total of 20 or more oceangoing vessels in Japan and Singapore, holding the position of the top independent shipowner in Japan.

Kyokuyo Shipyard Corporation are builders of merchant vessels and ships, including tankers, container carriers and reefers. Through the business and building experiences gained over decades with their international and domestic customers, Kyokuyo has acquired an invaluable treasure that is the solid reputation for holding high building standard.

Marindows creates a sustainable and fascinating future for the ‘sea.’ With the spread and promotion of maritime broadband communications, Marindows will bring all the seas that were previously out of the communication range online. High-speed, large-capacity communication promotes digital transformation at sea.

Marubeni Corporation is one of Japan’s largest trading companies (sogo shosha) with more than 160 years of history. Headquartered in Tokyo, Marubeni continues to expand its businesses across the globe, with a presence in over 65 countries and more than 130 branches and offices worldwide.

Meimon Taiyo Ferry provides inexpensive, but luxurious and comfortable traveling experience. The public facilities in the ferry like a restaurant, a viewing lounge and WI-FI are available.

MI LNG Company, Ltd. (MI LNG) is a jointly operated LNG carrier engineering firm, augmenting MI LNG’s earlier business relating to LNG carriers. The company is a joint venture between globally renowned shipping companies - Imabari Shipbuilding Co., Ltd. and Mitsubishi Heavy Industries, Ltd. (MHI).

Mitsubishi Corporation (MC) is a global integrated business enterprise that develops and operates businesses together with its offices and subsidiaries worldwide, as well as with its global network of around 1,700 group companies. MC has 10 Business Groups: Natural Gas, Industrial Materials, Chemicals Solutions, Mineral Resources, Industrial Infrastructure, Automotive & Mobility, Food Industry, Consumer Industry, Power Solution,s and Urban.

Mitsubishi Heavy Industries (MHI) Group delivers innovative and integrated solutions across a wide range of industries from commercial aviation and transportation to power plants and gas turbines, and from machinery and infrastructure to integrated defense and space systems.

Mitsubishi Shipbuilding Co., Ltd. covers the maritime related businesses of Mitsubishi Heavy Industries (MHI) Group. They help propel forward the development of the maritime industry both in Japan and around the world through conventional shipbuilding and marine engineering, based on our deep technological expertise in shipbuilding, and by leveraging the wide range of technologies across MHI Group.

MOL is a pioneer company in the ocean shipping industry, operating a fleet of about 800 vessels to transport various commodities such as resources, energy, raw materials, and products. On top of the traditional shipping businesses, MOL will develop a variety of social infrastructure businesses to meet the evolving social needs.

From here in Saiki City to the world's oceans, Miura Shipyard are building vessels that meet all needs, from coastal vessels to ocean-going vessels. They build a wide variety of ships such as cargo ships, oil tankers, chemical tankers, cement tankers, and passenger ferries.

MODEC is a general contractor specializing in engineering, procurement, construction and installation of floating production systems including Floating Production Storage and Offloading (FPSO) vessels, Floating Storage and Offloading (FSO) vessels, Tension Leg Platforms (TLPs), Production Semi-Submersibles.

MODEC has been a provider of solutions to the Floating Offshore Oil & Gas market for more than 50 years already. They are an owner/operator and EPCI (Engineering, Procurement, Construction and Installation) general contractor of floating production systems including Floating Production Storage and Offloading (FPSO) units, Floating Storage and Offloading (FSO) units, FLNGs, Tension Leg Platforms (TLPs), Semi-Submersibles.

MOL provides appropriate maritime consulting services in response to these changes and to their various needs by leveraging their vessel operation know-how.

MOL Techno-Trade, Ltd. is a company within the MOL Group that functions as a technology-specialized trading company, and is engaged in a wide range of businesses, including the sale of Propeller Boss Cap Fins (PBCF), which are energy-saving devices; procurement of fuel, lubricants, ship parts, and materials; and the management and maintenance of national oil terminals.

Murakami Hide Shipbuilding is located in Hakatajima, Imabari City of Ehime Prefecture, one of the maritime city. Adhering to the motto "Sincerity and Harmony", Murakami Hide Shipbuilding has been active in the shipbuilding industry for over a century since its founding in 1917 (Taisho 6 in Japanese year).

Naikai Zosen Corporation is a Japan-based company principally engaged in the manufacture and repair of ships. The Company operates in two business segments. The Ship segment is engaged in the manufacture and repair of ships, the manufacture and sale of abrasive products, as well as the repair of live-saving rafts, among others.

Headquartered in Japan’s Setouchi region, the centre of the country’s shipbuilding industry, Nakashima Propeller Co. Ltd. is a manufacturer of marine propulsion equipment, boasting a leading share in marine propellers. Nakashima seeks to offer a full range of services catering to each ship’s entire lifecycle while achieving fuel efficiency to reduce the burden on the environment.

Nakatani Ship Building Company represents the cutting edge of 21st century ship design with the development of new technology one of their priorities. The Nakatani Shipbuilding Company has developed an electric propulsion, domestic chemical tanker in collaboration with university ship research departments.

Namura Shipbuilding Co., Ltd. is the company that builds ocean-going ships. "Ships", are a means of transportation that connect the world carrying culture. Namura is building such "Ships" especially the large merchant ships. Namura’s achievements are found everywhere; in the sea, mountains, rivers, and towns.

NEDO is a national research and development agency that creates innovation by promoting technological development necessary for the realisation of a sustainable society. NEDO also contributes to a stable energy supply and the resolution of global environmental problems by promoting the demonstration of new energy, energy conservation, and environmental technologies abroad based on knowledge obtained from domestic projects.

Nihon Shipyard is the design and sale of all types of commercial vessels and offshore floating structures, except LNG carriers.

Nippon Salvage is engaged in salvage and marine construction projects. Technical ability, enthusiasm and sense of responsibility are all indispensable to acquire trust from clients. Nippon Salvage continue to evolve onward for the clients.