Contact JAPAN Head Office

Thank you for your interest in Hamari Chemicals. To learn more about our company and how we can help you to achieve your business’ goals please contact us today.

To call our head office in Japan dial +81-6-6205-7755 and talk with the International Department. We can also be reached by e-mail at

International Department
Hamari Chemicals, Ltd.
2-126, Kitahama, Chuo-ku, Osaka, 541-0041, Japan
TEL +81-6-6205-7755
FAX +81-6-6205-7222


Contact USA Office

Hamari USA Inc. San Diego Research Center (SDRC), a subsidiary of Hamari Chemicals, Ltd. in Japan, specializes in near-sourcing R&D support for clients in the U.S. Our U.S. labs focus on reactions and route optimization, toll manufacturing, and up to kilo scale non-GMP manufacturing.

To call SDRC in the US dial +1-858-704-4395 and talk with our super-friendly staff! We can also be reached by e-mail at

Hamari USA
Hamari Chemicals USA Inc. San Diego Research Center
11494 Sorrento Valley Road, Suite E
San Diego, California, 92121, USA
TEL +1-858-704-4395
FAX +1-858-704-4398

Visit Hamari USA’s Website
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