IWAKI & CO., LTD.

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  3. Group Companies

Group Companies

The Astena Group, with Astena Holdings as its core holding company, comprises companies across five business segments: Fine Chemicals, HBC & Food, Pharmaceuticals, Chemicals, and Social Impact.
Furthermore, to achieve sustainable growth through ESG management, we are also committed to investing in and fostering new businesses.
 
 
Astena Holdings Co., Ltd.

Holding company

Astena Holdings Co., Ltd.

スペラファーマ株式会社


Company Name Astena Holdings Co., Ltd.
Business Field Group business management, etc.
Head Office

8-2, Nihonbashi Honcho 4-chome, Chuo-ku,
Tokyo 103-8403, Japan
MAP

Telephone

+81-3-3279-0481

Fine Chemicals Business

SPERA PHARMA, Inc.

SPERA PHARMA, Inc.



Company Name SPERA PHARMA, Inc.
Business Field Pharmaceuticals Contract R&D and Manufacturing
Head Office

17-85, Jusohonmachi 2-chome, Yodogawa-ku,
Osaka-shi, Osaka 532-0024, Japan
MAP

SPERA NEXUS, Inc.

SPERA NEXUS, Inc.
Company name SPERA NEXUS, Inc.
Business field Manufacture and sale of active pharmaceutical ingredients, etc.
Head Office

8-2, Nihonbashi Honcho 4-chome, Chuo-ku,
Tokyo 103-0023, Japan
MAP

Telephone

+81-3-3279-0486

JITSUBO Co., Ltd.

JITSUBO Co., Ltd.
Company name Jitsubo Co., Ltd.
Business field Development of peptide manufacturing process, Molecular Hiving ™
Contract manufacturing of APIs and Licensing
Head Office

Life Science Research Center 4-1,
1-43, Suehiro-cho 1-chome, Tsurumi-ku, Yokohama-shi,
Kanagawa 230-0045, Japan
MAP

 Telephone +81-45-633-4327

Medical Business

IWAKI SEIYAKU Co., Ltd.

IWAKI SEIYAKU CO., LTD.


Company name IWAKI SEIYAKU Co., Ltd.
Business field Manufacturing and selling of ethical drugs, OTC drugs
Head Office

8-2, Nihonbashi Honcho 4-chome, Chuo-ku,
Tokyo 103-0023, Japan
MAP

Telephone +81-3-3668-1570

IWAKI SEIYAKU SAKURA FACTORY Co., Ltd.

IWAKI SEIYAKU SAKURA FACTORY Co., Ltd.

 

Company name IWAKI SEIYAKU SAKURA FACTORY Co., Ltd.
Business field Manufacturing and selling of ethical drugs, OTC drugs
Head Office

2183-1, Teranosaku, Ota, Sakura-shi,
Chiba 285-0808, Japan
MAP

Telephone +81-43-485-7111

Industrial Chemicals Business

Meltex Inc.

Meltex Inc.



Company name Meltex Inc.
Business field Manufacture and sales of surface finishing chemicals
Manufacture and sales of chemicals for the electronics industry
Design, installation, and sales of chemical equipment
Analysis and recovery of chemicals and metals
Manufacture and sales of plant for manufacturing printed-wiring boards
Head Office

8-2, Nihonbashi Honcho 4-chome, Chuo-ku,
Tokyo 103-0023, Japan
MAP

Telephone +81-3-3279-0671