(formerly known as Toyo Seikan Kaisha, Ltd.) is a Japan-based packaging container manufacturing company.
It became a holding company in 2013, taking the name Toyo Seikan Group Holdings Ltd. As of March 2013, the company has 78 subsidiary and nine affiliate companies. It is listed on the first section of the Tokyo Stock Exchange and the Osaka Securities Exchange and was a constituent of the Nikkei 225 stock index.
The Group also engages in the manufacturing and sales of hard alloys, raw material products for agriculture, sales of petroleum products, non-life insurance agency business and real estate management.