Press Releases

TSUNEISHI SHIPBUILDING Has Completed the Delivery of LNG-Specific Limestone Carrier as Our First Alternative Fuel Ship

March 21, 2024

TSUNEISHI SHIPBUILDING Co., Ltd. has delivered our first LNG-Specific Limestone Carrier on March 19. The vessel is the replacement vessel of “Shimokita Maru,” a limestone carrier owned by NS United Kaiun Kaisha, Ltd. It is installed with a hybrid propulsion system that combines an LNG-Specific-Gas engine and batteries manufactured by Kawasaki Heavy Industries, Ltd. This vessel is LNG-Specific Limestone Carrier that enables zero-emission operation when entering and leaving port.

The vessel is equipped with a hybrid propulsion system that is combination of an LNG-Specific-Gas engine and batteries without compromising the loading and unloading performance of conventional vessels, due to the ingenious shape of the cargo holds. In addition, the vessel takes measures against limestone dust, vibration control and installing unit lavatories in all cabins to improve safety and the onboard environment, offers a comfortable living space that partially incorporates TSUNEISHI’s original concept, NEXT STYLE*.

By using LNG fuel, CO2 emissions are reduced by approximately 24% compared to conventional heavy oil-fueled vessel, and the exhaust gas does not contain SOx. In addition, this LNG tanks are used 7% nickel steel plate developed by Nippon Steel Corporation for the first time as a marine tank, which have the same performance as conventional 9% nickel steel plates while reducing the amount of nickel used.

TSUNEISHI SHIPBUILDING Co., Ltd. will continue to accelerate research and development of various next-generation fuel vessels through the technology it has acquired in this project. We are committed to provide our customers with new types of vessels that can achieve both environmental performance and economic efficiency, thereby contributing to the reduction of the burden on the global environment.

About the Shimokita Maru as the replacement vessel
DWT: About 5,646MT
LOA: About 93.8m
Breadth: About 18.2m
Draft: About 9.9m
Propulsion System: hybrid propulsion system that combines an LNG-Specific-Gas engine (8L30KG) and batteries (Made by Kawasaki Heavy Industries, Ltd.)
Main Route / Cargo: Port of Shiriyazaki – Port of Muroran / Limestone

This accommodation house with a bright and open space is designed to provide the crew with a relaxing and stress-free environment. The multifunctional furniture pieces can be formed to match everyone’s lifestyle in the compact space. This unification of the fabrics and furnishings selection is the original design of TSUNESHI SHIPBUILDING.


TSUNEISHI SHIPBUILDING (HQ: 1083 Tsuneishi, Numakuma-cho, Fukuyama, Hiroshima, Japan) engages in shipbuilding and repairs, and is the anchor company of the TSUNEISHI Group, which conducts business mainly in the shipbuilding industry and maritime transport. With manufacturing bases in Japan (Tsuneishi Factory, the HQ), Philippines, and China, the company builds bulk carriers, container carriers, tankers, etc.
Company info:
Company ESG:

Representative Director, President and Chief Executive Officer: Sachio Okumura
Business: Shipbuilding and repair
Founded: July 1917 (Taisho 6)
Capital: 100 million yen
Employees: 815 (as of the end of November 2023)
Headquarters: Fukuyama City, Hiroshima Prefecture, Japan (Main Factory)

Shipbuilding Business Affiliates:
TSUNEISHI IRON WORKS Co., Ltd. (Fukuyama City, Hiroshima Prefecture, Japan)
TSUNEISHI ENGINEERING Co., Ltd. (Fukuyama City, Hiroshima Prefecture, Japan)
MIHO SHIPYARD Co., Ltd. (Shizuoka City, Shizuoka Prefecture, Japan)
MITSUI E&S SHIPBUILDING Co., Ltd. (Minato-ku, Tokyo, Japan)
YURA DOCKYARD Co., Ltd. (Yura, Hidaka-gun, Wakayama Prefecture, Japan)
NIIGATA SHIPBUILDING & REPAIR, Inc. (Niigata City, Niigata Prefecture, Japan)
KANDA DOCKYARD Co., Ltd. (Kure-shi, Hiroshima, Japan)


For further information, please contact:
Communication Dept.
TEL: +81-84-987-4915