Biocytogen Haimen Animal Center is located in Nantong, Jiangsu, which is about one hour driving distance from Shanghai. Since its operation in April 2016, the Haimen Animal Center has obtained the Laboratory Animal Production and Usage Licenses from the Science and Technology Department of Jiangsu Province and the Animal Export permit from the Entry-exit Inspection and Quarantine Bureau of Jiangsu Province. The center also has obtained three times of the AAALAC International Accreditation in 2016, 2019 and 2022. The total size of the animal facility is about 47,000 m², with 120,000 rat/mouse cages, focusing on the laboratory animal large-scale breeding and sales. The center is able to supply various self-developed mouse lines, such as the highly immune-deficient mice (B-NDG^® and its derivatives) , single and double immune checkpoint humanized models (e.g. B-hPD-1 and B-hPD-1/B-hPDL-1 mice, etc.), cytokine (receptor) humanized mice, and hundreds of target-gene edited mice for new drug development. With a wide range of animal selections, high-quality production, spacious facilities, and the large-scale supply capability, Biocytogen's Haimen Animal Center has been proved as a trusted animal model provider and service platform not only for research institutes, but also for pharmaceutical companies in more than 20 countries and regions worldwide.