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Sumitomo Chemical Co., Ltd.

Native name	住友化学株式会社
Company type	Public (K.K)
Traded as	TYO:4005 Nikkei 225 Component
Founded	Ehime, Japan (September 22, 1913; 112 years ago (1913-09-22))
Headquarters	(Tokyo head office): Tokyo Sumitomo Twin Building (East), 27-1, Shinkawa 2-chome,Chūō, Tokyo 104-8260, Japan (Osaka head office): Sumitomo Building, 5-33, Kitahama 4-chome,Chūō-ku, Osaka 541-8550, Japan
Area served	Worldwide
Key people	Masakazu Tokura (Chairman) Keiichi Iwata (President)
Products	Petrochemicals Alumina products Organic chemicals IT-related chemicals Agrochemicals Pharmaceuticals
Revenue	US$ 21.8 billion (FY 2013) (JPY 2,243 billion) (FY 2013)
Net income	US$ 359.2 million (FY 2013) (JPY 37 billion) (FY 2013)
Number of employees	32,542 (as of March 31, 2019)
Website	Sumitomo Chemical global website
Footnotes / references [1][2]

Sumitomo Chemical Co., Ltd. (住友化学株式会社,Sumitomo Kagaku Kabushiki-gaisha) is a majorJapanesechemical company. The company is listed on the first section of theTokyo Stock Exchange and is a constituent of theNikkei 225^[3]stock index. It is a member of theSumitomo group and was founded in 1913 as a fertilizer manufacturing plant.

• 1913: The House of Sumitomo establishes a fertilizer plant in Ehime to produce fertilizers from sulfur dioxide recovered from copper smelting emissions.
• 1915: Operations commence at the plant.
• 1925: Sumitomo Fertilizer Manufacturing Co., Ltd. is incorporated with operations at what is now the Ehime Works.
• 1934: Sumitomo Fertilizer Manufacturing changes its name to Sumitomo Chemical Co., Ltd.
• 1944: Sumitomo Chemical acquires Japan Dyestuff Manufacturing Company, starting a fine chemical business at the Osaka Works and the Oita Works.
• 1949: Sumitomo Chemical takes over the aluminum business of Sumitomo Aluminium Smelting Co., starting the integrated production of aluminum from alumina.
• 1958: Sumitomo Chemical starts petrochemical operations at its Ehime Works.
• 1965: The Takatsuki Research Laboratory is completed, serving as the Company's central laboratory. Sumitomo Chiba Chemical Co., Ltd. is established and begins petrochemical operations at the Chiba Works.
• 1971: The Takarazuka Research Center is established to reinforce research and development activities on pharmaceuticals and agricultural chemicals.
• 1976: The aluminum operation is transferred to the newly formed Sumitomo Aluminium Smelting Co., Ltd.
• 1978: The Misawa Works is opened to expand production of pyrethroid household insecticides.
• 1982: P.T. Indonesia Asahan Aluminium, a Japan-Indonesia economic cooperation project, of which Sumitomo Chemical is a member, begins aluminum smelting operations.
• 1983: Sumitomo Chemical integrates the petrochemical operations at its Ehime Works into its Chiba Works.
• 1984: Sumitomo Pharmaceuticals Co., Ltd. established by consolidating the pharmaceutical operations of Sumitomo Chemical and pharmaceuticals division ofInabata & Co., Ltd. The Petrochemical Complex in Singapore, a Japan-Singapore economic cooperation project, begins operations; Sumitomo Chemical is a leading participant, with its former chairmanNorishige Hasegawa [ja] having proposed the project in 1975
• 1988: The Biochemistry & Toxicology Laboratory, subsequently renamed the Environmental Health Science Laboratory, is established in the Osaka Works.
• 1989: The Tsukuba Research Laboratory is established to reinforce research and development on new materials.
• 1997: Petrochemical Corporation of Singapore (Pte.) Ltd., an affiliate in Singapore, commences operation of a new ethylene cracker in April under its second phase expansion project, bringing the total ethylene capacity to one million tons per year, and making it the largest petrochemical complex in East Asia consisting of various downstream units.
• 1998: Facilities in Singapore for the manufacture of acrylic acid and its derivatives, including methyl methacrylate resins, under a project which Sumitomo Chemical was promoting with other Japanese companies, are completed in October.
• 2000: Sumitomo Chemical establishes Genomic Science Laboratories, operated jointly with Sumitomo Pharmaceuticals.
• 2001: Sumitomo Chemical acquires household insecticide business of Aventis Crop Science. Sumitomo Chemical establishes the IT-related Chemicals Sector as a new business sector.
• 2002: Sumitomo Chemical Takeda Agro Co., Ltd., a joint venture between Sumitomo Chemical and Takeda Chemical Industries, Ltd., succeeds Takeda Chemical’s agrochemical business and commences operation.
• 2003: Sumitomo Chemical's subsidiary Dongwoo STI Co., Ltd. commences operation of a large-scale TFT-LCD color filters production plant in Korea. Sumitomo Chemical opens LCD Polarizing film plant in Korea.
• 2004: Sumitomo Chemical opens LCD Polarizing film plant in Taiwan.
• 2005: Sumitomo Chemical establishes equally owned joint venture Rabigh Refining and Petrochemical Company (Petro Rabigh) together withSaudi Aramco. Sumitomo Pharmaceuticals and Dainippon Pharmaceuticals merged to formDainippon Sumitomo Pharma.
• 2007: Sumitomo Chemical acquired the UK companyCambridge Display Technology, a pioneer in the development of polymer organic LEDs and related devices, and made it a wholly owned subsidiary.^[4]
• 2009: Petro Rabigh's integrated refining and petrochemical complex starts operations.
• 2010: Sumitomo Chemical acquires Indian agrochemical manufacturer New Chemi Industries Ltd with an eye to expand its crop-protection product business in India’s growing market.
• 2016: Japan's Sumitomo Chemicals acquires promoters’ stake in Excel Crop Care, a Mumbai-based agro-chemical manufacturer.
• 2017: Sumitomo Chemical acquires 82.9% of Botanical Resources Australia Group.^[5][6]

1. Atsushi Oya [ja] (1941–1947)
2. Masaharu Doi [ja] (1947–1963)
3. Norishige Hasegawa [ja] (1965–1977)
4. Takeshi Hijikata [ja] (1977–1985)
5. Hero Mori (1985–1993)
6. Akio Kasai (1993–2000)
7. Hiromasa Yonekura (2000–2009)
8. Hiroshi Hirose [ja] (2009–2011)
9. Masakazu Tokura [ja] (2011–2019)
10. Keiichi Iwata [ja] (2019–present)

• Official website(in English)
• Specialty Chemicals Division(in English)
• RACTHERA Co., Ltd.(in English)

• Chemical companies based in Tokyo
• Chemical companies established in 1913
• Companies based in Osaka Prefecture
• Companies listed on the Osaka Exchange
• Companies listed on the Tokyo Stock Exchange
• Companies in the Nikkei 225
• Japanese companies established in 1913
• Petrochemical industry
• Pharmaceutical companies based in Tokyo
• Sumitomo Group

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