At home, for the Guests. We hope to deliver delicious tea to your relaxing moments.

Main Products

We have been producing a variety of Japanese teas, especially the unique “Yamecha”, since our foundation in 1938.

We have been working hard to develop a high grade Yamecha which contains a genuine Yamecha aroma and flavor.

Soil preparation is critical when producing quality tea. Our strong passion in maintaining healthy, nutritious soil delivers the quality tea leaves which we use in our Yamecha.

We will continue to work hard to produce the finest Yamecha in the world.

About Us

  • Green tea

    The highest quality Yame green tea which we are proudly handling one of the best in Japan.
  • Macha

    Japanese traditional tea which is used for “Otemae”.
    (Japanese tea ceremony)
  • Herb tea

    Very original flavor of herb tea made from Yame tea leaves. It has Japanese essence in it.

How to Order

Visit our online store to find your favorite tea from our various product line.
Our products are organic certified.


  • Obtained FSSC 22000
    (Food Safety Management System)

    Obtained FSSC 22000 (Food Safety Management System)
  • Organic JAS Certification

Company Profile

Name Kogachagyo Co.,Ltd.
Headquarters & Primary Factory Address 493-1, Shimonosho, Setaka-machi, Miyama-shi, Fukuoka, JAPAN
Secondary Factory Address Ebisu-machi, Shimonosho, Setaka-machi, Miyama-shi, Fukuoka, JAPAN
CEO Satoko Koga
Founded Day May 1938
Established Day May 1975
Capital 18 million JPY
Accounting Period January
Number of Employees 30
Board Directors President & CEO Satoko Koga
President & CEO Kaoru Koga
Executive Director Masahiro Koga
Products & Service Yame Green Tea Processing and Retail
Bank The Bank of Fukuoka, Ltd.
The Chikuho Bank, Ltd.
Sumitomo Mitsui Banking Corporation
Annual Turnover JPY 1,200,000,000
Marketing Contact Japan:Tokyo,Uji,Shizuoka,All over the Country
Overseas:Germany, Belgium, Switzerland, Lithuania, Vietnam, Singapore, HoungKong, Several other countries


May 1938
Tamezo Koga founded “Koga Shoten” at 1010,Shimonosho,Setaka-machi.
Jul 1948
Our store removed to 1437, Shimonosho, Setaka-machi. We started the tea processing and retail.
Feb 1967
We bought the factory site in Tsutsui, Shimonosho, Setaka-machi.
Oct 1967
The construction of the secondary factory was completed. The second factory began its operation.
Nov 1969
The secondary phase of construction work (Extension of second factory) was completed,began operations. The extension of the second factory was competed.
Dec 1971
We opened a branch store “Koga no Cha-ho” (a Rretail section) at Yabegawa, Shimonosho, Setaka-machi.
May 1975
Kogachagyo Co.,Ltd. was established.Masatoshi Koga was appointed to the president.
Jul 1975
We bought the new factory site at 493-1, Shimonosho, Setaka-machi.
Mar 1977
The primary factory was constructed and, began its operations.
Oct 1977
We opened “Kogachagyo Gift Center” (a retail section) at 493-1, Shimonosho, Setaka-machi.
Nov 1989
Associated company “Hikari Company” was established.
Mar 1993
Headquarters office was extended.
Oct 1997
We opened our shop in Fukuoka MITSUKOSHI Department Store, started selling “Yame Shiracha”, “Yame Sencha Kaori”.
Mar 2003
Headquarters & primary factory has been completed. was constructed.
Dec 2003
We received ISO 9001:2000(Quality Management).
Apr 2006
Masatoshi Koga was appointed to the executive chairman. Satoko Koga was appointed to the president.
Mar 2008
We obtained JAS organic certification.
May 1938
Tamezo Koga founded “Koga Shoten” at 1010,Shimonosho,Setaka-machi.
Nov 2008
“Yame Shiracha” was awarded the Highest Gold in World Green Tea Contest 2008.
May 2010
“Yame Shiracha” was awarded the Highest Gold, “Yame Gyokuro Icecream” was awarded the Silver in Monde Selection. (The “Yame Gyokuro Ice Cream” is currently not available for sale.)
Mar 2011
We opened “Au Doungue” in the Road Station “Miyama”.
Sep 2012
Kogachagyo Facebook page was opened.
Oct 2013
“Yame Sencha Kaori” was adopted as the tea, which is served in the train “Seven Stars in Kyushu” by Kyushu Railway Company. “
Apr 2014
Apr 2014 We started selling “Yame Wakocha Sparkling”(Japanese sparkling black tea).
Oct 2014
We started selling “Seven Stars’ Yamecha”. “Yame Wakocha Sparkling” was winning at the Fukuoka Design Award 2014.
Apr 2016
We created new company brand “Tea Sommelier Yame Kogacha”, and started selling flavored tea.
Sep 2018
We renovated our shop in headquarters office, and opened “Kogacha-Cafe”.
Mar 2020
We obtained FSSC 22000.(Food Safety Management System)