Earth Science Technology EST strives to contribute to the world
by supplying eco-friendly products.


  • 2018.05.11 The website was renewed open.


Company name EST Co, Ltd.
Founded February 18, 2016
Head Office Nagoya Lucent Tower 40F, 6-1 Ushijima-cho, Nishi-ku
Nagoya City, Aichi Prefecture 451-6040, Japan
Tel: +81-52-569-1650 Fax: +81-52-569-1662
Executive Officers
  • President & Representative Director: Ryohei Toyoda
  • Director: Ryuzo Masaki
  • Director: Masaki Okawara(Director & Managing Executive Officer of Tokyo Sangyo Co., Ltd.)
  • Corporate Auditor: Yasuhiro Suzuki(Director of The Thermal & Electric Energy Technology Foundation)
  • Corporate Auditor: Koji Kusano(Tax accountant of Joss Tax Accountants Corporation)
  • Corporate Adviser: Tomihiro Taniguchi(Senior Managing Director of NPO Science and Technology in Society Forum)
  • Corporate Adviser: Shozo Watanabe(President & Representative Director of SEM Development Co., Ltd.)
Business Environmental, energy, import-export, retailing, and rental businesses
Capital 30 million yen

As of March 2018

PHILOSOPHY Management Philosophy

A Company Adapting to Change

It is not the strongest or the most intelligent who survive,
but those who can best manage change.

Message from the President MESSAGE

Ryohei Toyoda
Ryohei Toyoda
President and Representative Director

Striving to become a responsible and reliable company
that can long coexist with society in ever-changing environments

Under our management philosophy of “A Company Adapting to Change,” we engage in planning, conducting surveys, and product sales that enable us to adapt to any environmental changes on the earth.

In the field of clean energies, which have received much attention recently, we specialize in procuring biomass fuel from Southeast Asia. Our efforts have greatly contributed to solving energy problems that we face in Japan.

For environmental and energy-related issues, we aim to help many more people live happily in a safe and secure environment by ensuring improvements in such issues nationally and globally.

Using carefully selected, high-quality, high-performance products, our globally active staff quickly provides unconventional solutions for a variety of environmental and energy-related problems thought impossible to solve in the past.