Japan's largest manufacturer of tinplate, Nippon Steel & Sumitomo Metal employs technology developed over many years in the manufacture of high-quality and highly functional tinplate products. With strict quality control at each stage, from selection of the base material to finishing, we take pride in the manufacture of products for a diverse range of applications. We assist customers in reducing product weight with ultrathin tinplate, and in reducing environmental impact by eliminating the painting process through the use of laminated steel sheet.