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A comprehensive provider of soil contamination solutions.


The term "soil contamination" is used to refer to a diverse range of soil-related problems. Daiseki Eco. Solution is a comprehensive provider of soil contamination solutions, offering consulting, testing, analysis, remediation, and a number of other optimal solutions to customers facing soil contamination problems.

Daiseki Eco. Solution offers prompt and economical service through a nationwide network of experts backed by years of technical expertise acquired in dealing with soil contamination issues. We also guaranteed security for confidential information.

With offices in Sendai, Tokyo, Yokohama, Nagoya, Gifu, Osaka and Fukuoka, Daiseki Eco. Solution is prepared to serve customers anywhere in Japan. What is more, we are one of the few companies specializing in soil contamination countermeasures listed on the Standard Market of the Tokyo Stock Exchange and the Premier Market of the Nagoya Stock Exchange.



The term "soil contamination" is used to refer to a diverse range of soil-related problems. Daiseki Eco. Solution handles more than 1000 soil contamination cases a year, and provides customers with optimal solutions that accommodate every budget and land use as well as with the benefit of our extensive experience dealing with municipal governments.
Material surveys and survey planning as well as local gas, surface layer, and boring surveys are all performed by all our expert staff using company equipment, enabling Daiseki Eco. Solution to provide prompt and cost-effective services.
Daiseki Eco. Solution maintains laboratories staffed by experienced experts using the latest equipment. As a certified land surveyor, Daiseki Eco. Solution is capable of providing speedy and cost effective analysis of soil conditions as well as high-level component analysis of groundwater or recyclable waste.
Our extensive expertise in recycling industrial waste enables us to use detoxification and other recycling technologies in performing eco-friendly, cost-effective soil remediation.
Contaminated soil is washed to remove harmful metals such as lead, arsenic and cadmium,so that the soil can then be used for things such as backfill material.
Safety management is thoroughly maintained by officially authorized analysis performed on every 100m3.
The separated granules that contain the majority of contaminants are efficiently collected and then recycled for use in raw material for making cement.

Daiseki Eco. Solution operates recycling centers capable of handling a total of 1,300,000 tons of refuse annually, and where contaminated soil is sorted and processed into material suitable for use by cement manufacturers.

Soil that has been contaminated by VOCs (Volatile Organic Compounds)are cleansed using a Chemical-extraction process. After removal of VOCs the purified soil can then be used for backfill.
This effective method for recycling has been attracting much attention.

Options for on-site remediation includes the Fenton process as well as hot soil and bioremediation techniques. Daiseki Eco. Solution is capable of providing the optimal technology for any on-site remediation project including purification of groundwater.


Company name Daiseki Eco. Solution Co., Ltd.
Incorporated on 1 November 1996
Employees Employees 186 (as of 28 February 2023)
Business activities Soil contamination surveys, contaminated soil remediation, industrial waste collection and processing, environmental analysis, environmental consulting, recycling of plasterboard
Located at

Meizen-cho 8-18, Mizuho-ku, Nagoya, Aichi, Japan
/ Zip code:467-0852

Tokyo office

7F, Shibaura 3-8-10, Minato-ku, Tokyo, Japan
/ Zipcode:108-0023

Osaka office

Minami Okajima 7-1-82, Taisho-ku, Osaka, Japan
/ Zip code:551-0021

Sendai office

4F, Futukamachi 13-18, Aoba-ku, Sendai, Miyagi, Japan
/ Zip Code:980-0802

Kyushyu office

Yurigaoka 2-chome 7-15, Umi-machi, Kasuya-gun, Fukuoka, Japan
/ Zip code:811-2108

West-Osaka office

Tukuda 7-5-10, Nishiyodogawa-ku, Osaka, Japan
/ Zipcode:555-0001


Nagoya Recycling Center
located in Shinpo-machi,Tokai-shi, Aichi Prefecture

Yatomi Recycling Center
located in Kusunoki, Yatomi-shi, Aichi Prefcture

Yokohama Ebisu Recycling Center
located in Kanagawa-ku, Yokohama, Kanagawa Prefecture

Yokohama Namamugi Recycling Center
located in Tsurumi-ku, Yokohama, Kanagawa Prefecture

Osaka Recycling Center
located in Taisho-ku, Osaka, Osaka Prefecture

Gifu Recycling Center
located in Nino, Kani-shi, Gifu Prefecture

President and
Hiroya Yamamoto


1996 Daiseki Co., Ltd. Spins off its engineering department to create the subsidiary Daiseki Plant, which then branches out into the soil remediation business, utilizing expertise in testing, analysis, and recycling acquired from its parent company.

The enactment of the Soil Contamination Countermeasures Law in 2003 provides additional impetus to an already growing market. Daiseki responds to this opportunity by increasing personnel and reorganizing its operations in expanding its business.
June,2004 Daiseki Eco. Solution completes construction of its first recycling center in Nagoya.
October,2004 Daiseki Eco. Solution completes construction of its recycling center in Yokohama, Namamugi, serving the greater Tokyo area.
Recognizing the importance of risk management in communicating to clients the diverse kinds of soil contamination countermeasures actually performed onsite, Daiseki strengthens its consulting services.
2007 Daiseki Eco. Solution completes construction of its recycling center in Osaka.
Having established recycling facilities in the three major urban markets for soil contamination solutions, Daiseki continues to provide customers with remediation services and solidify its expertise through the successful completion of numerous projects.
2008 Daiseki Eco. Solution Co., Ltd. is listed on the first section of the Tokyo and Nagoya Stock Exchanges.
2009 Green Arrows Central Co.,Ltd. begins waste plasterboard recycling business operations.
2010 Kyushu office established.
2011 Sendai office established.
2012 Bio Diesel Fuel Business is commenced.
2013 Green Arrows Kyushyu Co., Ltd. begins waste plasterboard recycling business Operations.

Nagoya Tranship Center established.

Hiroshima office established.

2017 Yatomi Recycling Center is completed.

Headquarters relocate to Mizuho-ku, Nagoya.

Yokahama Ebisu Recycling Center is completed.

2019 Gifu Recycling Center is completed.

Daiseki Eco Solution acquired the shares of Sugimoto Trading Company Co., Ltd. and made it subsidiary.

West-Osaka office established.

Re-selection of Market Segments of Tokyo Stock Exchange to the Standard Market.



Daiseki Co., Ltd.

(Listed on the first section of the Tokyo and Nagoya Stock Exchanges.)

Location Funami-cho 1-86, Minato-ku, Nagoya, Aichi, Japan
/ Zip code:455-8505
Industrial waste processing; resource recycling; environmental maintenance, improvements, and disaster prevention; certified environmental assessment; construction lubricants; concrete mold lubricant; fuel oil sales; paint remover
Homepage https://www.daiseki.co.jp/english/
Green Arrows Central Co., Ltd.
Location Shibata-cho Honowari 213-7, Tokai-shi, Aichi, Japan
/ Zip code:476-0001
Recycling of waste plasterboard
Green Arrows Kyushu Co., Ltd.
Location Yurigaoka 2-chome 7-15,Umi-machi,Kasuya-gun,Fukuoka,Japan
/ Zip code:811-2108
Recycling of waste plasterboard
Sugimoto Trading Company Co., Ltd.
Location Minamikawase-cho 771, Hikone-shi, Shiga, Japan
/ Zip code:522-0222
General waste collection and processing, industrial waste collection and processing
Sugimoto Paper Industry Co., Ltd.
Location Azahakoda 103, Niisaka-cho, Nagahama-shi, Shiga, Japan
/ Zip code:526-0841
Wastepaper collection
Hokuriku Daiseki Co., Ltd.
Location Uchiki-cho Higashi 302-2, Kanazawa-shi, Ishikawa, Japan
/ Zip code:920-0377
Manufacture of lubricants as well as sales of petroleum products
Daiseki MCR Co., Ltd.
Location Hiraide Industrial Park 38-25, Utsunomiya-shi, Tochigi, Japan
/ Zip code:321-0905
Lead refining and recycling of batteries
System Kiko Co., Ltd.
Location Shibaura 3-8-10, Minato-ku,Tokyo, Japan
/ Zip code:108-0023
Washing of storage tank facilities, including other related operations