Jiangsu Zhongke Longchang Biotechnology Co., Ltd. specializes in the distribution of microbiological testing reagents and medical equipment, along with providing supporting technical services. The company has been officially authorized by IMMY USA as the national general agent, responsible for the domestic sales, market promotion, and full-process after-sales service of the brand's microbial detection products.

The company serves national research and clinical clients, with internal departments such as sales and administration, providing professional technical support and after-sales services.