Domestic offices

Head Office

Head Office

Gate City Ohsaki-West Tower, 11-1, Osaki 1-chome, Shinagawa-ku, Tokyo 141-0032, Japan




New Business Promotion Headquarters



Wind Power Business Division


FAX:81-3-5745-2063 ~ 65

Steel Business Division


FAX:81-3-5745-2063 ~ 65

Machinery Business Division



Injection Molding Machinery Business Division



FPD System Business Division



Ordnance Business Headquarters



Plant, Laboratory

Muroran Plant

4,Chatsumachi,Muroran-shi, Hokkaido 051-8505,Japan



Hiroshima Plant

6-1,Funakoshi-Minami 1-chome, Aki-ku,Hiroshima-shi, Hiroshima 736-8602,Japan



Yokohama Plant

2-1,Fukuura 2-chome, Kanazawa-ku,Yokohama-shi, Kanagawa 236-0004,Japan



Muroran Research Laboratory

4,Chatsumachi,Muroran-shi, Hokkaido 051-8505,Japan



Hiroshima Research Laboratory

6-1,Funakoshi-Minami 1-chome, Akiku, Hiroshima-shi, Hiroshima 736-8602,Japan




State-of-the-art production facilities deliver the world′s top level of quality, on which our customers have come to rely. We take pride in our three production bases at Muroran, Hiroshima, and Yokohama, which today and every day provide the world with advanced products and systems. At each of these plants, which are thoroughly streamlined and designed for the ultimate in efficiency, numerous specialists take on the challenge of technology innovation. The qualities of JSW can be seen in these three plants, fully equipped with the production systems and staff to meet the diverse needs of the age, while striving for high precision and energy efficiency. Total quality control (TQC) is of course pursued at all our plants. In 1974 we gained accreditation by the American Society of Mechanical Engineers (ASME) certifying that our nuclear reactor pressure vessels and materials, as well as our general pressure vessels and boilers, meet the highest quality standards of that organization, recognized all over the world. We were awarded the prestigious Deming Application Prize for quality control in 1983. Then in 1994 we earned ISO 9001 and 9002 certification for international quality management (combined as ISO 9001 in 2002), and in 1998 we received ISO 14001 environmental management systems certification, among other examples of the worldwide recognition our company has achieved for the excellence of our quality and manufacturing technology as well as our efforts to protect the environment.

Muroran Plant

  • Muroran Plant1
  • Muroran Plant2

Ever since our founding, the Muroran Plant has played a valuable part in the development of Japan′s heavy and chemical industries as a materials production center. Making use of large production facilities, such as a 14,000-ton hydraulic press, and cutting-edge equipment, including a 150-ton electro-slag???remelting furnace, the plant supplies the world with high-quality products that include very large to small cast and forged steel products, steel plates and pipes, reactors for oil refineries and petrochemical plants, as well as wind turbines and other products for the energy field.

Main facilities
  • 120-ton electric furnace
  • 150-ton electro-slag remelting furnace
  • 5-ton vacuum induction melting furnace
  • 3,000- to 14,000-ton presses
  • 30,000-horsepower 4-high reversible plate mill
  • 12,000-ton pipeforming press
  • low-frequency quenching equipment
  • metal machining tools
  • 70- to 730-ton wharf cranes

Hiroshima Plant

  • Hiroshima Plant 1
  • Hiroshima Plant 2

Dedicated to technological innovations especially in the fields of plastics and mechatronics, the Hiroshima Plant with its leading-edge manufacturing and assembly lines produces world-renowned large-size pelletizers and extruders, film and sheet production systems, and the latest plastics injection molding machines. The plant also has long experience in manufacturing and developing artillery and other defense equipment.

Main facilities
  • 8-ton high-frequency furnace
  • 6-ton electric furnace
  • precision casting equipment
  • plasma nitriding furnace and other heat treatment equipment
  • industrial chrome plating equipment
  • combination laser and turret punch press
  • various welding equipment
  • 2,000-ton hydraulic press
  • machining center and other metalworking machines
  • 60-ton wharf crane

Yokohama Plant

  • Yokohama Plant 1
  • Yokohama Plant 2

Our excimer laser annealing (ELA) system for IT products, enabling mass production of high-quality LCD panels and organic EL panels, has the top share of its market. We are also developing and commercializing systems for the next generation of LCD products. Following in the steps of our blow molding machines, spinning extruders, and other main products, the ELA systems have earned high acclaim both in Japan and overseas. Our newest endeavor is the manufacturing of equipment for semiconductor production.

Main facilities
  • Machining center
  • NC lathe
  • special equipment for screw machining and other metal machining tools

Research & Development

Aiming to become the global leader in monozukuri, we devote strong efforts to the development of new products and manufacturing methods based on our own technologies, while at the same time promoting technological tie-ups and joint development projects on multiple fronts so that technologies can be supplemented and commercialized at an early date.
Moreover, our research laboratories in each factories are actively working to enhance the functions, performance, and reliability of our existing core products while developing and perfecting products in new fields meeting the needs of this age, leading to the development of new businesses.
As targets of our R&D and commercialization efforts, we are focusing mainly on energy and environment, electronics, information and communications, and automotive fields. Besides our own R&D projects, we participate in national projects and take part in joint research with domestic and overseas research institutions.
With R&D facilities in three locations, the Muroran Research Laboratory, the Hiroshima Research Laboratory, and the Yokohama Research Laboratory, we conduct our R&D activities making use of the distinctive capabilities of each facility.

Muroran Research Laboratory

Muroran Research Laboratory

The Muroran Research Laboratory was established in 1907 with the founding of JSW.
From fundamental to applied studies, the laboratory has broadened its research fields on materials for key industries, such as steelmaking, shipbuilding, oil refining, hydro/thermal/nuclear power generation, and bridge construction. It has developed manufacturing processes and material technologies for large forgings and castings and achieved numerous results in new product and technology developments.
In recent years, strong research efforts are being devoted to studies on manufacturing processes for functional materials, including high-purity steel and nonferrous materials, as well as to developing heat-resistant, corrosion-resistant, and new functional materials.

Hiroshima Research Laboratory

Hiroshima Research Laboratory

The Hiroshima Research Laboratory was established in 1975.
R&D at this facility focuses on highly functional composite materials in plastics and polymer alloy fields, from raw materials to the molding process for making finished products, as well as on development of new materials for these processes.
Research also covers wear-resistant and corrosion-resistant elements for equipment such as extruders and injection molding machines. These technologies are then applied to development of light metal injection molding techniques, environmentally friendly plastics and other new materials. Research activities are also carried out in a wide range of other areas including micro- and nano-scale transcription molding process and nanotechnologies.

Yokohama Research Laboratory

Yokohama Research Laboratory

Our R&D work in the flat panel display and semiconductor-related fields is concentrated here in the Yokohama Research Laboratory, where efforts are also going into development of innovative technologies and new products as successors to our excimer laser annealing system, a core JSW product.Another area of research here aims to develop new manufacturing processes for blow molding machines and other industrial machinery as well as new analysis and testing technologies. Rather than simply focusing on product development, we strive to meet customer needs by paying attention to process technology development.

Local Office

Osaka Office

Shinanobashi Mitsui Bldg.,11-7 Utsubohonmachi 1-chome,Nishi-ku,Osaka-shi, Osaka 550-0004,Japan



Fukuoka Office

23-2, Sakuragaoka 1-chome, Kasuga-shi, Fukuoka 816-0872,Japan



Nagoya Office

Mitsui Sumitomo Kaijo Nagoya Shirakawa Bldg 7F,2-9-15, Sakae Naka-ku,Nagoya-shi, Aichi 460-0008,Japan



Hiroshima Office

6-1,Funakoshi-Minami 1-chome, Aki-ku,Hiroshima-shi, Hiroshima 736-8602,Japan



Overseas offices

Japan Steel Works Europe GmbHwindow open
Head Office
Friedrichstr. 19, 40217 Dusseldorf, F.R.Germany
TEL: +49-211-3116660
FAX: +49-211-31166640
Extrusion Technical Center
Bonner Strasse 243 40589 Dusseldorf, Germany
TEL: +49(0)211-788-600-0
FAX: +49(0)211-788-600-21
Japan Steel Works America, Inc.window open
Head Office
379 Thornall Street, 5th Floor, Edison, NJ 08837
TEL: +1-212-490-2630
FAX: +1-212-490-2575
Detroit Office (Extrusion Technical Center)
24387 Halsted Road Unit B, Farmington Hills, Michigan 48335, USA
TEL: +1-248-536-0288
FAX: +1-212-490-2575
Los Angeles Office
555 South Promenade Ave., Unit 104, Corona, California 92879, U.S.A.
TEL: +1-951-898-0934
FAX: +1-951-898-0944
Chicago Office
540 Capital Drive, Suite 130, Lake Zurich, IL 60047, U.S.A.
TEL: +1-847-550-0704
FAX: +1-847-550-0725
Japan Steel Works India Private Limited

611, Time Tower, MG Road, Sector 28, Gurgaon, Haryana, 122001, India

TEL: +91-124-469-4444

FAX: +91-124-469-4433

JSW Machinery Trading (Shanghai) Co., Ltd.window open
Head Ofiice
301-304 Metro Plaza, 555 Loushanguan Rd., Changning District, Shanghai 200051, China
TEL: +86-21-5206-7031
FAX: +86-21-5206-7032
The Japan Steel Works(Singapore) Pte. Ltd.

17 Gul Lane, 629413, Republic of Singapore

TEL: +65-6861-4511

FAX: +65-6862-3166


PT. JSW Plastics Machinery Indonesia

Gedung Gajah Unit K, Jl. Dr. Saharjo Raya No. 111 Rt. 001/01,Kel. Tebet Barat, Kec. Tebet 12810 Jakarta

TEL: +62-21-8370-2536

FAX: +62-21-829-8264

JSW Plastics Machinery (Philippines) Inc.

Unit 2205, 22nd floor, Asian Star Building, Asean Drive, Filinvest Corporate City, Alabang, Muntinlupa City, 1781, Philippines

TEL: +63-2-478-2533/2534

FAX: +63-2-809-6221

The Japan Steel Works (Thailand) Co., Ltd.

78/6 JST Building 4th Floor, Moo 7 King Kaew Road, Rachatewa, Bangplee, Samutprakarn 10540,Kingdom of Thailand

TEL: +66-2-738-5272

FAX: +66-2-738-5277

JSW Plastics Machinery (M) SDN. BHD.

D11-11-G, Pusat Perdagangan Dana 1, Jalan PJU 1A/46, 47301, Petaling Jaya, Selangor, Malaysia

TEL: +60-3-7842-6076/6077

FAX: +60-3-7842-6078

JSW Plastics Machinery Vietnam Ltd.

Room 103, Techno Center Thang Long Industrial Park, Kim Chung Commune, Dong Anh District, Hanoi, Vietnam

TEL: +84-24-3951-6383

FAX: +84-24-3951-6384

JSW Plastics Machinery (H.K.) Co., Ltd.

Room 907, Corporation Park, 11 On Lai Street, Sha Tin, N.T, Hong Kong

TEL: +852-2648-0720

FAX: +852-2686-8204

JSW Plastics Machinery (TAIWAN) Corp.
Head Ofiice
1F., No.21, Dahu 1st Road, Guishan Dist., Taoyuan City, 33373 Taiwan, R.O.C.
TEL: +886-3-396-2102
FAX: +886-3-396-2104
Tainan Branch
15F-7, NO.689-78, Xiaodong Road,Yongkang Dist., Tainan City, 71052 Taiwan, R.O.C.
TEL: +886-6-311-4192
FAX: +886-6-311-4193
JSW Plastics Machinery(Shenzhen) Co.,Ltd.

1F, YiBen Electronic & Business Industrial Park, No. 1063 Chaguang Road, Xili Town, Nanshan District, Shenzhen City, Guangdong Province, P.R.C.

TEL: +86-755-8602-0930

FAX: +86-755-8602-0934

SM PLATEK Co., Ltd.window open

687-2, Seonggok-dong, Ansan-si, kyeonggi-do, Korea

TEL: +82-31-488-3401/3402

FAX: +82-31-488-9982

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