Beijing CAS Microneedle Technology, Ltd. was established in May 2018. It is a technology achievement transformation enterprise led by researcher Gao Yunhua and a research team, mainly engaged in the research and development of polymer micro needle technology and the production and sales of products. Beijing CAS Microneedle Technology, Ltd. (referred to as "CASMN") is located in the biopharmaceutical base of Daxing District, Beijing. It is a comprehensive research and development base covering an area of over 4000 square meters, mainly conducting research and technical services on the application of micro needle technology and transdermal technology in the fields of pharmaceutical preparations, medical devices, and cosmetics. It has the ability to provide CRO and CDMO project research and development services, and has a production capacity of 20 million patches per year in a pilot scale. At present, we have two independent brands, Microacu and Casma. In October 2019, Beijing CAS Microneedle registered its subsidiary Chongqing CAS Microneedle Technology, Ltd. in Changshou District, Chongqing. It covers an area of over 8000 square meters and is mainly engaged in the research and development and production of innovative transdermal technology products in the field of medical aesthetics. With an annual production capacity of 150 million patches, it has a GMP automated production line and is one of the largest microcrystalline patch production bases in the world.