Ning'an Promising Electric Co., Ltd. was established in 2012 and is located in Fanjia Industrial Zone, Ning'an City, Heilongjiang Province. It is an enterprise specializing in the production of vulcanized fiber tube, fuse tube for fuse link, epoxy filament wound tubing, epoxy fiberglass fabric laminated tube, fuse tube for cutout fuse, melamine fiberglass laminates tubes. The products are mainly used in drop-out fuses, American box-type substations, oil-immersed transformers, lightning arresters, current-limiting fuses, etc. .

Promising Electric is market-oriented and backed by technology. The newly developed fuse tube for trams has passed domestic testing and has been successfully put on the market.