We are pleased to announce that our Tokyo Office has relocated to the following address.
We will continue to strive to enhance our services and sincerely appreciate your continued support.

■ New Address
5F, UENO CUBE EXECUTIVE
3-14-1 Ueno, Taito-ku, Tokyo 110-0005, Japan

■ Tel
+81-3-3833-7250 (unchanged)

■ Fax
+81-3-3833-7240 (unchanged)

■ Opening Date
January 19, 2026

■ Access
5-minute walk from Okachimachi Station (JR Yamanote Line)
5-minute walk from Ueno-Hirokoji Station (Tokyo Metro Ginza Line)
4-minute walk from Suehirocho Station (Tokyo Metro Ginza Line)
5-minute walk from Naka-Okachimachi Station (Tokyo Metro Hibiya Line)
5-minute walk from Ueno-Okachimachi Station (Toei Oedo Line)

We have launched contract manufacturing services at our consolidated subsidiary, Iharanikkei Chemical (Thailand) Co., Ltd., in Thailand.

The services include polymerization reactions using organochlorine compounds, among other contract manufacturing offerings.
We will flexibly respond to our customers’ diverse development and production needs and promote projects in close collaboration with our customers.

If you are looking for a contract manufacturing partner in Thailand, please feel free to contact us.

As part of our social contribution activities in line with our environmental policy, we conducted a beach clean-up at Kambara Coast in Japan on Friday, October 3.

Although this coastal clean-up is an activity we carry out every year, we once again found a significant amount of litter. By witnessing the reality of marine pollution firsthand, the activity reminded us of the importance of proper waste disposal and reinforced the need for continued awareness and action.

We are pleased to announce that we will participate in the 34th Polymer Materials Forum, to be held at WINC AICHI on December 4 (Thu) – 5 (Fri), 2025.
Our company will showcase:
“Acid Chloride Monomer Product Line and Contract Polymerization Reaction Services.”

We look forward to welcoming you at our booth.

We will make a poster presentation and have a corporate exhibit at the Japan Society for Process Chemistry 2025 Summer Symposium to be held at Tower Hall Funabori (Edogawa-ku, Tokyo) on 7/24-7/25/2025.

Poster Presentation ： 1P-24 “Chlorination of aromatic compounds using sodium hypochlorite pentahydrate as a chlorine source: Chlorination method without chlorine gas”
Corporate Exhibition Booth ： 104 （2F Corporate Exhibition Hall)

Please drop by and visit us.

We will have a corporate exhibit at the 40th Annual Conference of the Japanese Society of Dental Industry to be held at CIVI Training Center Shin-Osaka East (Higashiyodogawa-ku, Osaka City) on July 27 (Sun.).
We look forward to seeing you there.

Venue: CIVI Training Center Shin-Osaka East E5 Hall
(Lucid Square Shin-Osaka, 1-19-4 Higashinakajima, Higashiyodogawa-ku, Osaka City)

Conference and Journal Presentations page has been updated.
Please click on the link below.

We will have a corporate exhibit at Chemspec Europe 2025 in Koelnmesse, Germany on 04-05 June 2025.
Stand : 4U41

We will also have a Digital Showroom.
Please drop by and visit us.

We will have a corporate exhibit at Chemspec Europe 2024 in Messe Düsseldorf, Germany on 19-20 June 2024.

We will also have a Digital Showroom.
Please drop by and visit us.

On November 21, 2023, 29 third graders from Kambara Higashi Elementary School visited our plant for a social studies tour.

The purpose of the tour was to deepen their understanding of the company's safety and environmental initiatives unique to a chemical plant, and included an explanation of the company and a plant tour.

During the tour, the students were given an explanation of what the company makes and what kind of products it manufactures, and what kind of clothing the employees wear to ensure safety.
During the Q&A session, the participants asked questions such as, "How much product is produced in a day?" Why are the towers so high? We received many questions from a variety of perspectives, such as "How much product is produced in a day?
It was very impressive to see the students taking notes and listening intently to the explanation, and it was a very valuable experience for us as well.

We hope that the social studies field trip will help the children develop a connection and attachment to our company and the local community.
We also hope that it will help the children develop an interest in work and life and think about their future careers as they grow up.

As a social contribution activity in line with our environmental policy, we conducted a trash pickup along the Kambara Coast on Wednesday, October 25.
A large number of participants gathered on the day of the event to collect plastic trash, bottles, cans, and many other items that had fallen onto the beach, contributing to the beautification of the area and raising employees' awareness of the natural environment.

Through this activity, we realized once again that the pollution of the "Mother Sea," from which we receive our chlorine supply, is spreading.
In addition, the development and use of biodegradable plastics is spreading rapidly around the world.
While the development of such new materials is important, I hope that the Japanese people's cherished custom of "garbage goes in the trash" will spread throughout the world, and we will do what we can to help, starting with our immediate surroundings.

We will give a presentation at the 2023 Halogen Utilization Mini Symposium to be held at Kochi University of Technology, Kami Campus on December 1, 2023. The content of the presentation will be posted at a later date.

" We will have a company exhibit and poster presentation at the Japan Society for Process Chemistry 2023 Summer Symposium to be held at Tower Hall Funabori (Edogawa-ku, Tokyo) on 8/3-8/4/2023.
Details will be posted at a later date. "

We will have a corporate exhibit at Chemspec Europe 2023 in Basel, Switzerland on May 23-24.
Exhibition Booth: E249

We will also have a Digital Showroom.
Please drop by and visit us.