NIIGATA, Japan -- Hyakunousha International, an operator of onigiri rice ball shops, is working to build a stable rice procurement system with the launch of a new company in Japan's Niigata prefecture to oversee producing and marketing. Hyakunousha aims to secure fields in Niigata and…This story appeared on asia.nikkei.com , 2026-08-08 00:00:00.