main visual

GODO SHIGEN in Video

What is GODO SHIGEN?

We pump brine from deep underground layer to develop and produce valuable iodine and natural gas resources.

Iodine and Natural gas
Iodine and Natural gas

What is Iodine?

Iodine is an essential element for mammals. It exists in our bodies and is indispensable for staying healthy.

human picture
human picture
Povidone-iodine (gargle)
Polarizing film for computer and smartphone LCDs
Feed additives
Thyroid hormone drugs
Anti-mold agents
X-ray contrast agent

Four Business of GODO SHIGEN

We provide a broad range of iodine solutions worldwide through our three businesses of iodine, iodine compounds, and iodine recycling, while contributing to local lives and industries through our natural gas business.

Iodine Business

Iodine
Business

Iodine Compound Business

Iodine Compound
Business

Iodine Recycling Business

Iodine Recycling
Business

Natural Gas Business

Natural Gas
Business

Iodine recycling

We provide a broad range of iodine solutions worldwide
through our three businesses of iodine, iodine compounds, and
iodine recycling, while contributing to local lives and industries
through our natural gas business.

Iodine recycling

Pioneer of Iodine Manufacturing

We have been a pioneer in the production of iodine from the brine for the first time in Japan. Our long history gave us accumulated know-how.

Succeeded in developing

the “copper method,”

leading to mass production.

1934

Developed the “copper method” to produce iodine from natural gas brine by using copper sulfate and iron sulfate. The following year, we succeeded in mass-producing iodine from natural gas brine for the first time in Japan.

7% share of the global iodine market!

Japan accounts for 26% of
the world’s iodine production,
with GODO SHIGEN alone
producing 7%.

World iodine production

Chosei-mura in Chiba

GODO SHIGEN is located in Chosei-mura, the only village in Chiba Prefecture. Within the Minami-Kanto Gas Field, which is a water-soluble natural gas deposit extending over the southern Kanto region, the Kujukuri area, including Chosei-mura, is particularly active in the production of natural gas brine.

Minami-Kanto gas fields

Minami-Kanto gas fields map
Minami-Kanto gas fields map
chiba map

Message from the President

"We will increase the value of precious resources
and aim to the first century by stable company."

President

"In accordance with our business, we will be integrated with the local community while harmonizing with the environment, and will make further efforts to be a trusted corporate activity and to continue in stable business."

President

Toshio Yamanoi
President and Representative Director

Three Visions

Handshack illustration

A cheerful and open company based on respect for people

leaf illustration

A creative company
full of vitality

home illustration

A company that coexists
with the community

GODO SHIGEN in Numbers

Establishment

1934

90th year in business

Net sales

¥18.2B

Oct.2022 - Sept.2023

Number of employees

218

World share

7%

iodine production