Amulet Sword have been carried since ancient times to protect oneself from evil spirits. Even today, Amulet Sword are widely used as a gift for childbirth celebrations, weddings, funerals, and other ceremonies, with hopes for a child's healthy growth or the protection of their owner.
The Amulet Sword Exhibition showcases selected outstanding works collected from swordsmiths and sword artisans nationwide. Since its inception in 2005, the exhibition aims to preserve and enhance traditional sword-related craftsmanship while contributing to the sound development of traditional Japanese arts.

Proterial's main factory, the Yasugi Works (Yasugi City, Shimane Prefecture), is the former site of the Unpaku-Steel Limited partnership, established in 1899 by financiers who practiced the ancient method of tatara ironmaking. Initially, they shipped kera (steel bloom), tamahagane (steel made from iron sand), and refined iron (typically used for knives) made by the tatara method nationwide. Over time, by applying the tatara method and enhancing production efficiency with corner furnaces, Proterial, while developing technology to the current day, produces world-class specialty steel by continuing the spirit of ironmaking fostered by tatara ironmaking.
Furthermore, Since 1977 (when Hitachi Metals, Ltd. was in charge), Proterial contributes to the production of tamahagane, the sole material for Japanese swords, by supporting the tatara operations organized by the Nihon Bijutsu Token Hozon Kyokai. The aim of which is to preserve the technique and culture of tatara, one of the starting points of Proterial.
Against this context, we sponsor the Amulet Sword as Proterial to support the continuation and improvement of the traditional techniques of tamahagane Amulet Sword, which embody the essence of traditional Japanese craftsmanship.

Furthermore, Proterial will also be placing advertisements at stations including Nagano, Okayama and Kurashiki in conjunction with the hosting of the 18th Amulet Sword.