Within the tyre industry, Sumitomo enjoys a well-earned reputation for precision engineering and innovative technology. Sumitomo high technology radials have been designed for today’s performance cars. Whatever the application, every Sumitomo radial reflects the company’s primary commitment to compete always on the basis of product quality and customer service.

The Sumitomo Business Principles, stressing integrity and sound management, were originally based on Masatomo’s Precepts and have been a central force shaping the spirit of each Sumitomo company for more than 350 years. Sumitomo’s initial mainstay business was copper mining. It later diversified into a variety of fields including finance, insurance, iron and steel, real estate, and trade. Today, Sumitomo is acknowledged as one of Japan’s leading business groups.