ISO (International Organization for Standardization) has developed a series of international standards on environmental management. The Environmental Management and Environmental Auditing series were published in September 1996 (revised in November 2015). In Japan, JISQ14001 was published as guidelines or environmental standards in October 1996 (revised in November 2015).

In an effort to respond to the recognized environmental standards, Daido Steel started the construction of a system using the Hoshizaki Plant as a model, in September 1995. In August 1996, Daido Steel became the first company in the specialty steel industry in Japan to be certified, and the second after Nagoya Works of Nippon Steel (at that time) in the iron and steel industry.

The entire Daido Group will continue to promote certification activities and continual improvement in its environmental management system.

Certified Plants

Plant Name Certification Date Registration Number Certification body
Hoshizaki Plant August 19, 1996 E003 JICQA
Chita Plant
(including Chita Second Plant, Chita Forging Plant, Kimitsu Plant, Chita Steel Strip Plant, and Oji Plant) on Feb. 2 in 1998
February 2, 1998 E022
Shibukawa Plant February 2, 1998 E020
Tsukiji Techno Center (including Metal Powder Plant) August 26, 1998 E041
Electronic Materials dept. (LED Section) December 12, 2005 00017585 LRQA

The following 17 group companies have obtained ISO 14001 certification

Company Name Certification Date Registration Number Certification body
Tohoku Steel Co., Ltd. January 27, 2000 E116 JICQA
Japan Drop Forge Co., Ltd. April 12, 2001 E268 JICQA
Fuji OOZX Inc. July 17, 2001 JAER0295 JARI-RB
Daido Electronics Co., Ltd. November 9, 2003 JMAQA-E446 JMA
Daido Kogyo Co., Ltd. December 10, 2003 JP08/070556 SGS Japan Inc.
Daido Precision Industries Ltd. January 29, 2004 E772 JICQA
Shimomura Tokushu Seiko Co., Ltd. February 26, 2004 E788 JICQA
Daido EcoMet Co., Ltd. July 1, 2004 E876 JICQA
Daido Electronics (Thailand) Co., Ltd. July 19, 2004 EMS85777 BSI
Nissei Seiko Co., Ltd. October 8, 2004 JQA-EM4269 JQA
Riken Seiko Co., Ltd. December 16, 2004 E968 JICQA
Toyo Sangyo Co., Ltd. January 18, 2005 JE0484G JIA-QA
Daido Electronics (Suzhou) Co., Ltd. March 23, 2005 02222E3068R6M CNAS
Daido Die & Mold Steel Solutions Co., Ltd. June 9, 2005 E1074 JICQA
Nippon Seisen Co., Ltd. (Hirakata Factory and Higashi-Osaka Factory) September 15, 2005 JMAQA-E584 JMA
Daido Castings Co., Ltd. December 12, 2005 JMAQA-E592 JMA
Sakurai Kosan Co., Ltd. July 13, 2006 08579-B Intertek Certification Japan Ltd.