China. According to the trademark of the product No.1, which is produced by Dissent Energy Technology Co., Ltd., the company is located in Hangzhou. Dissent (Hangzhou) Energy Technology Co., Ltd. was established on January 11, 221, and its registered place is located at Liuhe Road, Puyan Street, Binjiang District, Hangzhou City, Zhejiang Province. Its business scope includes technical service, technical development, technical consultation, technical exchange, technology transfer and technology promotion.