上山製作所 Company Profile

MADE IN JAPAN Plastic products, to the nation and to the world.

Our company has been producing daily miscellaneous goods primarily through the injection molding of thermoplastic resins, which have the property of melting and becoming soft when heated and solidifying when cooled, since the early days of the plastic industry. We obtained ISO 9001:2015 and ISO 14001:2015 certification in January 2023. In addition to stationery and office supplies, we have numerous achievements in utility model and design registration for store supplies, commercial hangers, parts for cutting tools, and other containers. We not only specialize in injection molding but also leverage our network of partner companies to offer consultations on various plastic product planning, including other molding methods, sheet processing, machining, 3D printing, printing, assembly, and packaging. Please feel free to contact us with your requests.