Recently, health-consciousness and the preference of additive-free foods have been promoted globally, mainly in developed countries. It is said that the scale of the world market for natural food materials such as yeast extract has been continuously expanding and further development is expected in future. Also, in recent years, yeast extracts have been required to have even more tastiness, richness, and breadth of taste, and at the same time, alternative products for MSG (monosodium glutamate) and protein hydrolysate have been in demand. Moreover, there has been a growing worldwide movement toward reducing the amount of salt intake from foods, facilitating the increase in demand for yeast extracts. In order to meet such needs, Yeastock,Ltd. utilizes its unique technologies to provide Yeastock, a safe and tasty natural seasoning, to the world.