Gelonghui March 14 | Aerospace Changfeng (600855.SH) said on the investor interactive platform that Aerospace Changfeng Chaoyang Power is a wholly-owned subsidiary of our company. Its business mainly includes R&D, production and sales of four major system products, including modular power supplies, single power supplies, bus power supplies and power systems. It has also carried out joint research and development cooperation with universities such as Nanjing University of Aeronautics and Astronautics. Chaoyang Power's products mainly convert external AC and DC power supplies as needed, including DC electricity from various types of batteries, but the company is not currently developing solid state battery development or production business.