Beijing Challen Biotechnology Co., Ltd., located in Zhongguancun Science and Technology Park Biological Pharmaceutical Industry Base, Daxing District, Beijing, is a technology company specializing in the R&D, production and sales of biomedical technology products. Challen Biotechnology is committed to providing users with excellent one-stop services of flow cytometry (FCM), instruments and reagents. At present, its products mainly cover MateCyte™ and LongCyte™ FCM series, as well as auxiliary diagnostic reagent and automatic sample preparation instruments. There are nearly 300 users in China. Challen Biotechnology also provides solutions for clinical diagnosis, biotherapy, basic biomedical research, drug R&D, environmental materials, food toxicity monitoring, etc.