The address of the Guojitang throat lozenges manufacturer is Southeast Yandu. In 2020, the R&D headquarters of Guojitang's fresh stewed, freeze-dried, and ready-to-eat bird's nest product processing and production enterprise was officially established in Southeast Yandu. Guojitang is a trademark name that Shanghai Pure Industrial Co., Ltd. applied for registration with the State Trademark Administration on October 15, 2018. Focus on the field of high-quality bird's nest supplements. Forming a product creative matrix with bird's nest as the core and a variety of nourishing and health products coexisting.