OSAKA -- The company behind Sushiro, Japan's largest conveyor belt sushi chain, will partner with a Japanese startup to farm sea urchins on land, Nikkei has learned.
4 locations in Japan to produce delicacy popular with foreign tourists

Sushiro served uni farmed on land at Expo 2025 in Osaka. (Photo by Hiromasa Matsuura)
OSAKA -- The company behind Sushiro, Japan's largest conveyor belt sushi chain, will partner with a Japanese startup to farm sea urchins on land, Nikkei has learned.