1970

Establishment this year as a sales distributor in Kansai Area

1974

Developed & new launching of Own Brand of Water Purifier " Cherry Water "
Establishment of Customer Management System by Computer in 1976

1981

Own Building of Head Quarter Office established, and another office bulding established in Tokyo, Fukuoka & others.

1989

New Launching of Water Purifier "Excellent Twin "as a 1st Water Purifier with 2 filters

1998

Establishment of OSG Headｑuater Building
New Launching of Water Ionizer " Human Water ： HU-55"

2000

New Launching of Hi Clo Soft Acidic Water Generator

2002

Water Purifier in Residential use "Twin e"New Launching

2004

Water Ionizer "Human Water ：HU-D"
New Launching
Establishment of Manufacturing Factory in China
：OSG Environmental Technology (Suzhou) Co., Ltｄ
Wujiang, Jiangsu, CHINA

2005

Water Ionizer "Human Water ：HU-88"
New Launching

2006

Establishment of Water*Net ：Bottle water Delivery Service

2007

Inaugural：Mr.Yukawa as a CEO, Mr.Mizobata as a President

2010

Functional Water Research & Institute at the University of Tokyo

2011

40th anniversary ceremony in Japan & China

2012

Establishment ： OSG Research & Institute at Chengdu Research Base of Giant Panda Breeding

2021

Inaugural：Mr.Yamada as a President