No, according to the relevant information, Sinoma Lithium has obtained a registered trademark, obtained the certification of the industrial and commercial department, and has a business license. Sinoma Lithium Film Co., Ltd., a subsidiary of China Building Materials Group, is a state-owned enterprise with mixed ownership economy, which is jointly funded by Sinoma Science and Technology Co., Ltd., Nanjing Glass Fiber Research and Design Institute Co., Ltd. and Tengzhou Yingke He Zhong Investment Management Center. With a registered capital of 300 million yuan, the company specializes in research and development, production, sales and technical services of high-performance lithium battery separators. The main products are 5-20μm wet bi-directional synchronous stretching diaphragm and various coated diaphragms, which are used in the fields of new energy vehicle power batteries, 3C consumer batteries, energy storage batteries and so on.