TSUNO Food Industrial Co. Ltd. is located in the canton of Ito, north east of the Wakayama prefecture in Japan, a region especially well known for Mount Kôya-san ( which gave its name to a group of Buddhist temples). Founded in 1947, TSUNO has been producing rice bran oil since 1960. Today it's their main activity, because of its quality, the environmental setting and the availability of pure river Kinokowa water.

The refinery only arrived several years after. What is more, TSUNO Food Industrial Co. Ltd. installed a plant to extract raw materials and a central collection point for fresh rice bran in the Kansai industrial estate. This equipment enabled the refinery to grow to its present day successful position.

TSUNO Food, ISO 9001 accredited since 1998, wants to continue to grow and develop around rice bran oil through an ever improving quality control. It is worth noting that rice bran is the only raw material produced in Japan for the production of vegetable oil.