Kohsai Co.,Ltd.

Kohsai Co.,Ltd. engages in the jewelry business in Japan. The company manufactures and sells precious metal accessories and jewelry parts. Its products include clasps, rings, and earrings, as well as products for men. The company was formerly known as Kosaikogei Co.,Ltd. and changed its name to Kohsai Co.,Ltd. in August 2017. The company was incorporated in 1967 and is headquartered in Kai, Japan. Kohsai Co.,Ltd. is a subsidiary of Estio Co., Ltd.

光・彩は、ジュエリーとジュエリーパーツ製造のリーディングカンパニーです。職人の技術と最先端の機械加工を掛け合わせ、ユーザー様、取引先様、従業員、子孫、地球環境を考えた製品づくりを実施。山梨県に籍を置くJASDAQ上場企業として、日本と世界の平和と発展に貢献していきます。