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Comprehensive Capabilities Supported by Locally-oriented Group Enterprises
Rengo Group Companies in Japan

Efficiently divided work responsibility between directly managed plants and group companies is essential to the strength of the Rengo Group in terms of integrated manufacturing ranging from paperboard to corrugated products. At the same time, cooperation within the group is also crucial to the effective development of non-corrugated businesses such as folding cartons and flexible packaging. An extensive network of locally-oriented group enterprises in Japan, each having its own technology and expertise, is what supports the comprehensive capabilities of the Rengo Group.

Heavy Duty Packaging

Nihon Matai Co., Ltd.

Nihon Matai Co., Ltd.


Taito-ku, Tokyo
TEL. +81-3-3843-2111 FAX. +81-3-3843-1624

Main products

Highly functional resin products,
laminated products, etc.



Tri-Wall Japan Co., Ltd.


Minato-ku, Tokyo
TEL. +81-3-6433-0755 FAX. +81-3-6433-0796