The roots of Yasugi steel go back centuries to the Tatara smelting tradition of the Chūgoku region (western Honshū). The Yasugi area in Shimane Prefecture was an important center for producing tamahagane, the traditional steel used for swords, woodworking tools, and specialized cutlery. Tatara steelmaking used iron sand (“satetsu”) and charcoal to create pure, high-carbon steel. This long tradition established Yasugi’s reputation for high-quality metalworking.