Company Name

Foundation

in April, 1951

Head Office

Tokyo, Japan

Production Sites

1. Saitama Factory

2. Midorigaoka Factory

3. Fujioka Factory

Employees

175

Annual Sales

 J.Yen 4765 million 

 (March 2024)

API (Active Pharmaceutical Ingredients)

5%

Pharmaceutical Intermediates

30%

Electronics Chemicals

(Photoinitiators, Liquid Crystals)

35%

Flavor & Fragrance Chemicals

10%

Cosmetic Raw Materials

5%

Organic Intermediates & other products

15%

From 1gram to 100ton/year

Samples for new drug development 

Pilot-Scale（10-100kg）custom synthesis 

Spot-basis custom synthesis (any quantities)

Commercial production in custom synthesis

Process Development & Synthesis-Route selection

GMP compliance

More than 120 Stainless Steel, Glass-Lined and Hastelloy Reactors,  

temp., at -90℃ to 250℃, in 50-4,000L of volume

1951

Midori Laboratory was founded by Masao Horie and started synthesis of

flavor & fragrance chemicals.

1962

Reorganized as ‘Midori Kagaku Co., Ltd.’

Saitama Factory started operation.

1977

Fukushima Factory was constructed and started operation to expand capability of High-Pressure hydrogenation and distillations.

1984

Okuma Factory was newly constructed and started operation, with computer controlled Multi-Purpose reactors.

1990

In Saitama Factory, GMP facility was improved for production of API and pharmaceutical intermediates.

2004

Tokyo Head Office building was newly constructed in Toshima-ku, Tokyo.

2011.3

In Okuma Factory and Fukushima Factory, operations are being ceased since the earthquake on March 11, 2011.　

2011.11

Midorigaoka Factory was constructed and started operation in November 2011

for production of flavor & fragrance chemicals and organic intermediates.  

2017.1

Fujiokaoka Factory(66,000m²), Gunma pref., was newly constructed and started operation in January, 2017.

2019.2

Fujiokaoka Factory A1, A2 and A6 facilities were newly constructed and started operation. 

2019.2

Fujiokaoka Factory was approved as a pharmaceutical production facility by the authority.

2022.1

Fujiokaoka Factory A5 facility and R&D laboratories were newly constructed and started operation.