三協化成 Company Overview

We carry out everything in-house, from mold design to manufacturing and processing, based on resin extrusion and injection molding.

Since its establishment in 1975, we have been a comprehensive plastic molding manufacturer that consistently engages in processes from the production of molding tools to product assembly, primarily based on plastic materials, which are the "materials of dreams," including extrusion molding and injection molding. Although our products are not often seen directly by customers, we provide products that contribute to everyday life in areas such as housing, home appliances, and transportation by flexibly responding to societal needs such as safety, environment, and comfort, transforming into various forms. We cherish and nurture a free and open corporate culture, think and act with a positive mindset, and continuously challenge ourselves as a corporate group where each individual supports the company and embraces change. Moving forward, we will continue to provide high value-added products and services that meet customer needs with a sophisticated high-production system and excellent quality, based on the philosophy of the Sankyo Tateyama Group. We sincerely ask for your continued support and encouragement.