We pump brine from deep underground layer to develop and produce valuable iodine and natural gas resources.
Iodine is an essential element for mammals. It exists in our bodies and is indispensable for staying healthy.
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.
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.
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.
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.
World iodine production
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
A cheerful and open company based on respect for people
A creative company
full of vitality
A company that coexists
with the community
90th year in business
Oct.2022 - Sept.2023
Number of employees