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Domestic Subsidiaries & Affiliates

A

ARRK CORPORATION

11F, Tatsuno Minami Hommachi Building, 2-2-9 Minami Hommachi, Chuo-ku, Osaka-Shi,Osaka

Established	December 1968
Capital	¥2.00 billion
Equity interest	Mitsui Chemicals Inc. 100%
Line of business	Comprehensive services related to the development of new products Manufacturing and marketing of industrial design models Planning, design and engineering of new products Engineering and manufacture of all types of tooling, and production and marketing of small-lot moldings

C

CHEMOURS-MITSUI FLUOROPRODUCTS CO., LTD.

Kamiyacho Prime Place 7F, 4-1-17, Toranomon, Minato-ku, Tokyo 105-0001

TEL +81-50-3823-0600 +81-50-3823-0600

URL https://www.mc-fluoro.co.jp/

Established	April 1963
Capital	¥2,880 million
Equity interest	Mitsui Chemicals, Inc. 50%, Chemours Kabushiki Kaisha 50%
Line of business	Manufacture and sale of fluorocarbon resin and gas, and other chemicals.

CHIBA CHEMICALS MANUFACTURING LLP

Marunouchi 3-1-1 Chiyoda-ku, Tokyo

Established	April 2010
Equity interest	Mitsui Chemicals, Inc. 50%, Idemitsu Kosan Co., Ltd. 50％

D

DM NOVAFOAM, LTD.

361-1, Oaza Karita, Obuse-cho, Kamitakai-gun, Nagano 381-0211

TEL +81-26-247-2557 +81-26-247-2557

FAX +81-26-247-2281

URL https://www.daicel.com/novafoam/

Established	April 2012
Capital	¥97.5 million
Equity interest	Mitsui Chemicals, Inc. 35%, Daicel Corporation 65%
Line of business	Manufacture and sales of foam packaging materials.

DOW-MITSUI POLYCHEMICALS CO., LTD.

Tokyo Midtown Yaesu, Yaesu Central Tower 2-2-1 Yaesu, Chuo-ku, Tokyo 104-0028

TEL +81-3-6880-7650 +81-3-6880-7650

FAX +81-3-6880-7658

URL https://www.mdp.jp/en/

Established	December 1960
Capital	¥6,480 million
Equity interest	Mitsui Chemicals, Inc. 50%, Dow 50%
Line of business	Manufacture and sale of specialty copolymers and low density polyethylene.

E

EVOLUE JAPAN CO., LTD.

Tokyo Midtown Yaesu, Yaesu Central Tower 2-2-1 Yaesu, Chuo-ku, Tokyo 104-0028

TEL

FAX

Established	November 1996
Capital	¥100 million
Equity interest	Prime Polymer Co., Ltd. 75%, Sumitomo Chemical Co., Ltd. 25%
Line of business	Manufacture and sale of polyethylene.

H

HOKKAIDO MITSUI CHEMICALS, INC.

1, Toyonuma-cho, Sunagawa, Hokkaido 073-0138

TEL +81-125-54-3131 +81-125-54-3131

FAX +81-125-52-6818

URL https://www.hmci.co.jp/

Established	April 2000
Capital	¥490 million
Equity interest	Mitsui Chemicals, Inc. 100%
Line of business	Manufacture and sale of Adhesives for wood,material of cosmetics and foliar activator. Analysis Sale of Mitsui Chemicals'prodacts.

HONSHU CHEMICAL INDUSTRY CO., LTD.

Mercros Bldg. 3-3-9, Nihonbashi, Chuo-ku, Tokyo 103-0027

TEL +81-3-3272-1481 +81-3-3272-1481

FAX +81-3-3272-1480

URL http://www.honshuchemical.co.jp/

Established	November 1914
Capital	¥1,500 million
Equity interest	Mitsui Chemicals, Inc. 51%, Mitsui & Co., Ltd. 49%
Line of business	Manufacture, sales and R&D of raw materials for synthetic resins, dyes, pharmaceuticals, agricultural chemicals, rubber chemicals and other chemicals.

J

JAPAN COMPOSITE CO., LTD.

2-3-1, Nihonbashi-Muromachi, Chuo-ku, Tokyo 103-0022

TEL +81-3-3516-3002 +81-3-3516-3002

FAX +81-3-3516-3090

URL https://www.j-comp.co.jp/

Established	April 2003
Capital	¥1,005 million
Equity interest	Mitsui Chemicals Polyurethanes, Inc. 65%, Nippon Shokubai Co., Ltd. 35%
Line of business	Manufacture and sale of unsaturated polyester resins and molding materials for FRP.

JAPAN POLYOL LLP

Tokyo Midtown Yaesu, Yaesu Central Tower 2-2-1 Yaesu, Chuo-ku, Tokyo 104-0028

Established	May 2023
Equity interest	Mitsui Chemicals, Inc. 50%, Sanyo Chemical Industries, Ltd. 50%

K

KATSUZAI CHEMICAL CORPORATION

Tosho Bldg. 9th Floor, 3-8-3, Nihonbashi-honcho, Chuo-ku, Tokyo 103-0023

TEL +81-3-5623-3181 +81-3-5623-3181

FAX +81-3-5623-3183

URL https://www.katsuzai.co.jp/

Established	September 1976
Equity interest	Mitsui Chemicals, Inc. 54.5%, others 45.5%
Line of business	urethanes, chemical products, and synthetic resins

Kulzer Japan Co., Ltd.

TSK Bldg. 2F, 4-8-13 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan

TEL +81-3-5803-2151 +81-3-5803-2151

FAX +81-3-5803-2150

URL https://www.kulzer.com/

Capital	¥100 million
Equity interest	MC Dental Holdings International, LLC 100％（a 100% Mitsui Chemicals, Inc. subsidiary)
Line of business	Sale of dental materials, dental equipments

KYODO CARBON CO., LTD.

1-1-7, Motowanishi-cho, Muroran, Hokkaido 050-0065

TEL +81-143-55-3074 +81-143-55-3074

FAX +81-143-55-3796

Established	October 1978
Capital	¥100 million
Equity interest	Hokkaido Mitsui Chemicals, Inc. 30%, Air Water Inc. 60%, others 10%
Line of business	Manufacture and sale of liquid carbon gas and dry ice.

KYOWA INDUSTRIAL CO.,LTD.

4-18-18 Suguecho Sanjo-city Niigata 955-0832 Japan

TEL +81-256-34-4441 +81-256-34-4441

FAX +81-256-34-1168

URL https://www.kyowa-ind.co.jp/EN/index.html

Established	August 1963
Capital	¥95 million
Equity interest	Mitsui Chemicals, Inc. 100%
Line of business	Manufacture and sale of injection molds & presses

M

MC BUSINESS SUPPORT, LTD.

5F, Tokyo Midtown Yaesu, Yaesu Central Square 2-1-4 Yaesu, Chuo-ku, Tokyo 104-0028

TEL +81-3-6880-7680 +81-3-6880-7680

FAX +81-3-6872-1020

URL https://www.mcbs.co.jp/

Established	April 2007
Capital	¥50 million
Equity interest	Mitsui Chemicals Inc. 100%
Line of business	Placements, temporary work services, Insuranace and travel services and Consignment from Mitsui Chemicals

MC CROP & LIFE MANUFACTURING CO., LTD.

1215 Iwazo-machi, Utsunomiya, Tochigi 321-0973

TEL +81-28-661-4361 +81-28-661-4361

FAX +81-28-663-2186

URL https://www.mc-croplifemanufacturing.com/

Established	November 1951
Capital	¥20 million
Equity interest	Mitsui Chemicals Crop & Life Solutions, Inc. 100%
Line of business	Manufacture of agricultural chemicals and fertilizers Manufacture of insecticides for non-agricultural use

MC RYOKKA CO., LTD.

1-9-1, Nihonbashi-honcho, Chuo-ku, Tokyo 103-0023

TEL +81-3-5290-2956 +81-3-5290-2956

FAX +81-3-5290-2957

URL https://www.mc-ryokka.com/

Established	April 1994
Capital	¥30 million
Equity interest	MC Crop & Life Solutions 100%
Line of business	Agrochemicals business for landscape manegement,home gardening and forestry

MITSUI CHEMICALS ASAHI LIFE MATERIALS CO., LTD.

Tokyo Midtown Yaesu, Yaesu Central Tower, 2-2-1, Yaesu, Chuo-ku, Tokyo 104-0028

TEL +81-3-6880-7630 +81-3-6880-7630

FAX +81-3-6880-7634

URL https://www.malifematerials.com/en/

Established	October 2023
Capital	¥500 million
Equity interest	Mitsui Chemicals, Inc. 60.62%, Asahi Kasei Corp. 39.38%
Line of business	Manufacturing, Development and Sales of Nonwoven materials

MITSUI CHEMICALS CROP & LIFE SOLUTIONS, INC.

Nihonbashi Dia Building, 1-19-1, Nihonbashi, Chuo-ku, Tokyo 103-0027

TEL +81-3-5290-2700 +81-3-5290-2700

FAX +81-3-3231-1171

URL https://www.mc-croplifesolutions.com/en/

Established	April 2003
Capital	¥350 million
Equity interest	Mitsui Chemicals Inc. 100%
Line of business	Research, development, manufacture, sale, and import and export of agricultural chemicals and fertilizers for crop protection use Manufacture and sale of insecticides for non-agricultural use Environmental management of building materials, including insect control, termite control, and moisture prevention

MITSUI CHEMICAL ANALYSIS & CONSULTING SERVICE, INC.

580-32, Nagaura, Sodegaura, Chiba 299-0265

TEL +81-438-64-2400 +81-438-64-2400

FAX +81-438-64-2402

URL https://www.mcanac.co.jp/

Established	October 1999
Capital	¥100 million
Equity interest	Mitsui Chemicals, Inc.100%
Line of business	Performing analyses, physical property measurements, and safety tests on chemicals.

Mitsui Chemicals ICT Materia, Inc.

Tokyo Midtown Yaesu, Yaesu Central Tower 2-2-1 Yaesu, Chuo-ku, Tokyo 104-0028

TEL +81-3-6880-7640 +81-3-6880-7640

FAX +81-3-6880-7638

URL https://www.mcictm.com/english/

Established	April 2024
Capital	¥350 million
Equity interest	Mitsui Chemicals, Inc. 100%
Line of business	Production and sale of protective films, films for the electronic component manufacturing process, and other such industrial films and sheets used by the semiconductor, electronic materials and optical sectors, as well as the production and sale of solar cell encapsulants

MITSUI CHEMICALS INDUSTRIAL PRODUCTS LTD.

3-39-10, Yushima, Bunkyo-ku, Tokyo 113-0034

TEL +81-3-3837-0281 +81-3-3837-0281

FAX +81-3-3837-1945

URL https://www.mitsui-sanshi.co.jp/

Established	October 1964
Capital	¥400 million
Equity interest	Mitsui Chemicals Inc 100%
Line of business	Manufacture, fabrication and sale of civil engineering and construction materials.

MITSUI CHEMICALS MC, LTD.

14-1, Komagoekitamachi, Shimizu-ku, Shizuoka-shi, Shizuoka 424-0906

TEL +81-54-334-1221 +81-54-334-1221

FAX +81-543-34-5337

URL https://www.mck.co.jp/

Established	January 1973
Capital	¥300 million
Equity interest	Mitsui Chemicals Polyurethanes, Inc. 100%
Line of business	Manufacture and sale of urethane derivatives, saturated polyester resins, and raw materials for urethane foams.

MITSUI CHEMICALS OPERATION SERVICES CO., LTD.

3, Chigusa-kaigan, Ichihara, Chiba 299-0108

TEL +81-436-62-9677 +81-436-62-9677

FAX +81-436-62-9675

URL http://www.mcos.co.jp/

Established	April 2007
Capital	¥100 million
Equity interest	Mitsui Chemicals Inc. 100%
Line of business	Operation support for MCI Works and factories.

MITSUI CHEMICALS SUN ALLOYS CO., LTD.

580-271, Nagaura, Sodegaura, Chiba 299-0265

TEL +81-438-64-0251 +81-438-64-0251

FAX +81-438-64-0255

URL https://www.sunalloys.com/

Established	November 1993
Capital	¥100 million
Equity interest	Mitsui Chemicals, Inc. 100%
Line of business	Manufacture and sale of compounded polymers.

MITSUI FINE CHEMICALS, INC.

4-3-18, Nihonbashi-muromachi, Chuo-ku, Tokyo 103-0022

TEL +81-3-5203-7327 +81-3-5203-7327

FAX +81-3-5203-2231

URL https://www.mkf.co.jp/english/index.html

Established	April 1976
Capital	¥400 million
Equity interest	Mitsui Chemicals, Inc. 100%
Line of business	Sales of fine chemical products and Manufacture and sales of inorganic chemicals.

MITSUI CHEMICALS EMS CORPORATION

5-4960 Nakagawara-cho, Nobeoka-shi, Miyazaki 882-0031

TEL +81-982-21-0808 +81-982-21-0808

FAX +81-982-23-9075

Established	July 2023
Capital	¥100 million
Equity interest	Mitsui Chemicals, Inc. 100%
Line of business	Operations for the development and production of LSI and FPD pellicles.

N

NIPPON ALUMINUM ALKYLS, LTD.

2-2-2, Uchisaiwai-cho, Chiyoda-ku, Tokyo 100-0011

TEL +81-3-3504-0811 +81-3-3504-0811

FAX +81-3-3504-0876

URL http://www.naa.co.jp/eng/index.html

Established	August 1968
Capital	¥400 million
Equity interest	Mitsui Chemicals, Inc. 50%, Albemarle Corporation 50%
Line of business	Manufacture and sale of organic compounds, such as alkylaluminum, and their derivatives.

NIPPON EPOXY RESIN MANUFACTURING CO., LTD.

Tokyo Midtown Yaesu, Yaesu Central Tower 2-2-1 Yaesu, Chuo-ku, Tokyo 104-0028

TEL +81-3-6880-7426 +81-3-6880-7426

FAX +81-3-6880-7578

Established	February 1989
Capital	¥100 million
Equity interest	Mitsui Chemicals, Inc. 50%, DIC 40%, ADEKA 10%
Line of business	Manufacture and sale of epoxy resin.

NIPPON TENSAR LTD.

3-39-10, Yushima, Bunkyo-ku, Tokyo 113-0034

TEL +81-3-3837-0281 +81-3-3837-0281

FAX +81-3-3837-1967

Established	July 1989
Capital	¥100 million
Equity interest	Mitsui Chemicals Industrial Products Ltd. 70%, Mitsubishi Chemical Infratec Co.,Ltd. 30%
Line of business	Manufacture of geogrid.

O

OSAKA PETROCHEMICAL INDUSTRIES, LTD.

Tokyo Midtown Yaesu, Yaesu Central Tower 2-2-1 Yaesu, Chuo-ku, Tokyo 104-0028

TEL +81-3-6880-7430 +81-3-6880-7430

FAX +81-3-6880-7584

Established	February 1965
Capital	¥100 million
Equity interest	Mitsui Chemicals, Inc. 100%
Line of business	Manufacture of ethylene, propylene and other basic petrochemical products.

P

POLARIS CHEMICALS, INC.

550-1 Inokuchi, Wakayama-shi, Wakayama 649-6323

TEL +81-73-477-0277 +81-73-477-0277

FAX +81-73-477-3165

Established	October 2021
Capital	¥10 million
Equity interest	Mitsui Chemicals, Inc. 90%, Kasano Kosan Corporation 10%
Line of business	Manufacture of biocatalyst for acrylamide

PRIME POLYMER CO., LTD.

Tokyo Midtown Yaesu, Yaesu Central Tower 2-2-1 Yaesu, Chuo-ku, Tokyo 104-0028

URL http://www.primepolymer.co.jp/english/index.html

Established	April 2005
Capital	¥20,000 million
Equity interest	Mitsui Chemicals, Inc. 65%, Idemitsu Kosan Co., Ltd. 35%
Line of business	Manufacture and sale of polyolefin

S

SANSEIKAIHATSU CO., LTD.

30, Asamuta-machi, Omuta, Fukuoka 836-0817

TEL +81-944-52-8411 +81-944-52-8411

FAX +81-944-52-7253

URL http://shiranuigolf.com/

Established	April 1968
Capital	¥490 million
Equity interest	Mitsui Chemicals, Inc. 100%
Line of business	Consignment from the Company, including cargo work and accident prevention, and more.

SAXIN CORPORATION

4-2-1, Sekinotsu, Otsu, Shiga 520-2277

TEL +81-77-546-3121 +81-77-546-3121

FAX +81-77-546-3636

URL http://www.saxin.com/

Established	November 1962
Capital	¥128 million
Equity interest	Mitsui Chemicals, Inc. 95.9%, others 4.1%
Line of business	Manufacture and sale of ultra high molecular weight polyethylene.

SHIMONOSEKI MITSUI CHEMICALS, INC.

7-1-1, Hikoshima-sakomachi, Shimonoseki, Yamaguchi 750-0092

TEL +81-83-266-1122 +81-83-266-1122

FAX +81-83-267-8188

URL http://www.shimonoseki-mci.co.jp/

Established	September 2000
Capital	¥490 million
Equity interest	Mitsui Chemicals, Inc. 100%
Line of business	Manufacture and sale of phosphoric acid and fertilizers.

SHOFU INC.

11 Kamitakamatsu-cho, Fukuine, Higashiyama-ku, Kyoto 605-0983

TEL +81-75-561-1112 +81-75-561-1112

FAX +81-75-561-1747

URL https://www.shofu.co.jp/global/index.php

Established	May 15, 1922
Capital	¥ 5,968,956,614
Equity interest	Mitsui Chemicals, Inc. 20.2％, others 79.8%
Line of business	Manufacture and sales of dental materials and equipments

SUN MEDICAL CO., LTD.

571-2, Furutaka-cho, Moriyama, Shiga 524-0044

TEL +81-77-582-9981 +81-77-582-9981

FAX +81-77-582-9979

URL https://www.sunmedical.co.jp/english/index.html

Established	February 1981
Capital	¥100 million
Equity interest	Mitsui Chemicals, Inc. 50%, Nisshin Dental Products lnc. 30%, Shofu Inc. 20%
Line of business	Manufacture and sale of dental materials.

SUNREX INDUSTRY CO., LTD.

1, Asake-cho, Yokkaichi, Mie 512-8501

TEL +81-59-336-2200 +81-59-336-2200

FAX +81-593-36-2208

URL https://www.sun-rex.jp/

Established	December 1986
Capital	¥240 million
Equity interest	Mitsui Chemicals, Inc. 100%
Line of business	Manufacture and sale of spunbonded nonwoven fabrics and synthetic fibers.

T

TAISHO MTC LTD.

Tokyo Midtown Yaesu, Yaesu Central Tower 2-2-1 Yaesu, Chuo-ku, Tokyo 104-0028

TEL +81-3-6880-7452 +81-3-6880-7452

FAX +81-3-6880-7561

URL https://www.taisho-mtc.com/

Established	April 1993
Capital	¥400 million
Equity interest	Mitsui Chemicals, Inc. 40%, Taisho Pharmaceutical Co., Ltd. 60%
Line of business	Manufacture and sale of taurine.

TOKUYAMA POLYPROPYLENE CO., LTD.

1-1 Harumi-cho Shunan Yamaguchi 745-0024

TEL +81-834-34-2707 +81-834-34-2707

FAX +81-834-33-3677

URL http://www.tokuyamapp.co.jp/

Established	April 2001
Capital	¥100 million
Equity interest	Prime Polymer Co., Ltd. 50%, Tokuyama Corp. 50%
Line of business	Manufacture of polypropylene.

TOYO BEAUTY SUPPLY CORPORATION

3-3-10, Nihonbashi-hongokucho, Chuo-ku, Tokyo 103-0021

TEL +81-3-3241-1410 +81-3-3241-1410

FAX +81-3-3270-6338

Established	February 1964
Capital	¥40 million
Equity interest	Mitsui Chemicals, Inc. 60%, Nagase & Co., Ltd 40%
Line of business	Trust manufacture of cosmetics.

TOYO PHOSPHORIC ACID, INC.

7-1-1, Hikoshima-sakomachi, Shimonoseki, Yamaguchi 750-0092

TEL +81-832-66-1122 +81-832-66-1122

FAX +81-832-67-8188

Established	July 1971
Capital	¥90 million
Equity interest	Shimonoseki Mitsui Chemicals 77%、Onoda Chemical Ind. 23%
Line of business	Manufacture and sale of phosphoric acid.

Y

YAMAMOTO CHEMICALS, lNC.

1-43, Yugecho-minami, Yao, Osaka 581-0034

TEL +81-72-949-4561 +81-72-949-4561

FAX +81-72-949-5479

URL http://yamamoto-chemicals.co.jp/english/

Established	October 1925
Capital	¥350 million
Equity interest	Mitsui Chemicals, Inc. 100%
Line of business	Manufacture and sale of functional pigments and industrial chemicals.