Yonkyu Co., Ltd. engages in the seafood wholesale business that includes tuna and eel farming business. Its operations are carried out through the following segments: Fresh Fish Sales, Feed Sales, and Others. The Fresh Fish Sales segment manages the sale of fish and processed products to consigned central wholesale markets. The Feed Sales segment handles the sale of live feeds, mixed feeds, and moist pellets for the aquaculture industry. The Others segment includes general cargo transportation business. The company was founded on April 26, 1963 and is headquartered in Uwajima, Japan.