Member of
		Japan Contractors Association of Traffic Signs and Lane Makings
		Hokkaido Contractors Association of Traffic Signs and Lane Makings
		Technical Association of Resin Pavement
Related group
		Japan Construction Training Center
		Hokkaido Vocational Ability Development Association
Alliances
		Shinto Paint, Inc.
		ATOMIX, Inc.
		Gakunan Kohki, Inc.
		Bishu Kousan, Inc.