Ejoy Quality Source(China)is located in Hangzhou, Zhejiang, China. with a partner office in Edwardsville, IL, USA, We have great working relations with all international certification bodies, including Underwriters Laboratories (UL), CSA International, and CCIC (China). We are committed to providing lower costs and turnaround time for all certification needs. We will take advantage of special certification opportunities and use good agency relationships to obtain certification in a timely manner.