Sibanuma Syoyu International Co., Ltd. is a soy sauce manufacturer based in Ibaraki, Japan, with over 320 years of tradition. The company specializes in producing premium soy sauce using wooden barrels for fermentation, which brings a unique richness and complexity to the flavor. Sibanuma is known for its high-quality soy sauce, made from locally grown soybeans and wheat, and exported to over 60 countries.