The Yonkyu Co.,Ltd., together with its subsidiaries, operates in the fishery industry in Japan. It operates through the Fresh Fish Sales Business, Food and Feed Sales Business, and Other segments. The company engages in the sale of sea bream, yellowtail, and amberjack; artificial hatching of fish primarily red sea breams; raising, processing, and shipping of pacific bluefin tuna; and eel farming business. It also sells live feed, mixed feed, moist pellets. In addition, the company is involved in the general freight transportation business. The Yonkyu Co.,Ltd. was founded in 1961 and is headquartered in Uwajima, Japan.