Hidezo Kimura founded the company in Osaka (Namba).

A plant was constructed in Hyogo (Ako).

Magnesium carbonate was successfully manufactured in Japan for the first time.

Kimura Manufacturing Co., Ltd. was established.

Company name was changed to “Earth Chemical Co., Ltd.”

Company joined the Otsuka group.

Earth Environmental Service Co., Ltd. was established.

Construction of the R&D Center and biological laboratory was completed.

Biochemical division was established in Tokushima city.

ARS Chemical (Thailand) Co., Ltd. was established.

Company joined the present Earth Biochemical Co., Ltd.

Ako plant was completed.

Tokyo Head Quarters and International Headquarters were established.
International Operation Department (presently International Department) was set up.

Earth Chemical (Tianjin) Co., Ltd. was established.

Head Office was moved to Tokyo.

Biochemical division was moved to Earth Biochemical Co., Ltd.

Distribution partnership in Japan Market with Block Drug Co. in the U.S.A. (presently
GlaxoSmithKline.)

New laboratory in Sakoshi Plant was completed.

Collaborative development of anti-mosquito polyester cloth “SCORON” with Teijin Nestex
Limited.

Head office building was completed.

Company aquired the certification of ISMS (Information Security Management System) in
Japan.
Earth Chemical (Suzhou) Co., Ltd. was established.
Company was listed on the 2^nd section of Tokyo Stock Exchange.

Company was transferred from the second section to the first section of the Tokyo Stock
Exchange.

Distribution partnership of household products in Japan Market with Reckitt Benckiser
headquartered in the U.K
Co-developed SANITA insect-proof steel sheets with JFE Galvanizing & Coating Co. Ltd.
and Ishihara Chemical Co., Ltd.

Tarky Co., Ltd. became a consolidated subsidiary of Earth Biochemical Co., Ltd.

Approved＆registered “Eco Action21” Environmental Management System.
New plant at Earth Chemical (Tianjin) Co., Ltd. was completed.